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RPC programming
Using RPC programming is one of the most powerful and efficient ways to
ensure communication between client and server entities. It forms the basis
for almost any application running on distributed computing environments. This
article deals with the basic flow of events between an RPC client and server
and later deals with runtime handling of these events. The different routines
that are dealt in this article are categorized appropriately and described
based on their functionality.
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Articles |
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24 Nov 2009 |
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Using alt_disk_copy
The alt_disk_copy is a built-in AIX utility that allows the cloning of a
running rootvg. alt_disk_copy is typically used for upgrades that effect the running
of AIX, cloning of disks for migration, and online backups of rootvg.
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Articles |
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10 Nov 2009 |
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Resource controls in workload partitions
Resource control in workload partitions is based on the Workload Manager (WLM) technology that has
been available in the AIX kernel since IBM AIX V4.3.3. The workload partition (WPAR)
resource control encapsulates and extends the WLM technology. It presents a layer of abstraction above WLM, making it easier to administer resource control without having a need to possess an in-depth knowledge of WLM.
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Articles |
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25 Aug 2009 |
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Speaking UNIX: Man oh man
UNIX has hundreds if not thousands of commands, and it's impossible to
remember every option and nuance. But, happily, you don't have to: man, UNIX's built-in,
online reference system, is man's best friend.
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Articles |
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28 Jul 2009 |
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Speaking UNIX: 10 great tools for any UNIX system
The universe of UNIX tools changes constantly. Here are 10 tools -- some
you may have overlooked and some new -- to tinker with.
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Articles |
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12 May 2009 |
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Multiprocessing with Python
Learn to scale your Unix Python applications to multiple cores by using the multiprocessing module which is built into Python 2.6.
Multiprocessing mimics parts of the threading API in Python to give the developer a high level of control over flocks of processes, but
also incorporates many additional features unique to processes.
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Articles |
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24 Mar 2009 |
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IBM System Planning Tool (SPT) and the System p
The System Planning Tool (SPT) is a wonderful utility that is a must for any
System p architect or administrator. It is browser-based, and helps you architect
your entire managed system by assisting in the planning, design, and validation of
your system. Furthermore, it is tightly integrated with the IBM System Workload Estimator (WLE), which allows you to plan systems based upon either existing or new workloads. Follow along in this article for details on how to install and get the most from this important tool.
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Articles |
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23 Sep 2008 |
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Korn shell scripting
Korn shell scripting is something all UNIX users should learn how to use. Shell scripting provides you with the ability to automate many tasks and can save you a great deal of time. It may seem daunting at first, but with the right instruction you can become highly skilled in it. This article will teach you to write your own Korn shells scripts.
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Articles |
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17 Jun 2008 |
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Speaking UNIX: Booting up
Ever wonder what makes a computer tick or how a UNIX server does what it does? For
those who wonder what happens when you push the power button on your computer,
here's your inside look. This article discusses the different boot types, managing the IBM
AIX bootlist, and the AIX boot sequence. After reading this article, you should have a
better understanding of what exactly is happening when your server starts.
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Articles |
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13 May 2008 |
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Automatic generation of configuration data for HACMP/XD-PPRC
HACMP/XD uses PPRC mirroring technology to provide disaster
recovery for critical applications' data. To achieve high availability for
distributed applications over extended distances, administrators need to configure
PPRC in an HACMP/XD environment. This involves collecting configuration data from
the storage as well as from the cluster nodes; at times this can be tedious. This
article shows you how, using pprc4hacmp, configuration data is generated for
HACMP/XD-PPRC automatically.
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Articles |
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13 May 2008 |
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Transition to AIX from Solaris
You've been working with Solaris for ten years now and, like many other
companies, you have just started a large server consolidation and migration project
to AIX(R) 6.1 from Solaris 10. Many of the commands are similar, but you need to
know how to work with partitioning and virtualization. What are the partitioning
differences between an IBM(R) and Sun server? Furthermore, what do you need to know
about workload partitions (WPARs) to make a successful transition from containers?
What are some of the similarities and differences between WPARs and zones, and how
does the process differ from creating zones and WPARs? Finally, what can you do on
the IBM System p(TM) that you can't do with Sun servers? These are some of the
questions addressed in this article, with the objective of making your transition
easier.
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Articles |
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12 Feb 2008 |
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Secure RPC using DES authentication on AIX 5.3
Find out how to use Secure RPC using Data Encryption Standard (DES)
authentication on AIX(R) 5.3 to achieve a secure communication between the client
and server. In this article, you'll examine the setup required to initiate Secure
RPC between the client and server, DES authentication, and how to make applications
secure using the Secure RPC application programming interfaces (APIs).
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Articles |
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12 Feb 2008 |
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Optimizing AIX 6.1 performance tuning
Just when you thought you understood performance tuning on AIX(R) Version
5.3, here comes AIX 6.1 on its heels to throw you a curveball. In this article, get
up-to-date information on the recent changes to performance monitoring and tuning in
AIX 6.1, including CPU, virtual memory, and I/O (disk and network). Many of the changes are really less about kernel innovations and
more about ancillary changes, such as improving default parameters to more
accurately reflect real-world data processing. Other enhancements include unique
tunable documentation, restricted tunables, and various other improvements to
certain subsystems. You'll learn more about a performance tuning methodology, which
needs to be a part of any tuning strategy.
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Articles |
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05 Feb 2008 |
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Understanding EFS
Safeguard your data with the Encrypted File System (EFS), a new AIX(R) 6.1
security feature, and get a comprehensive picture on the configuration of EFS and
its usage. EFS can store the content of a file in an encrypted format at the file
system level. If you’re new to EFS, this article is a good starting point for
reviewing the need for EFS, its features, and most commonly used commands.
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Articles |
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29 Jan 2008 |
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Systems Administration Toolkit: Spam and virus filtering for e-mail
Look beyond tools like SpamAssassin and Amavis to see how you can extend
them and provide additional filtering facilities to lower the amount of spam hitting
the e-mail boxes of your users. Most companies use spam and virus filtering services
on their UNIX(R) platforms, but there are some methods that you can use that help
improve your filtering scores and might even eliminate spam reaching inboxes.
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Articles |
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22 Jan 2008 |
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Develop with Java and PHP technology on AIX Version 5.3, Part 6: Building the Java business application
Set up a PHP Web interface for the Java(TM) business application using a
database created in earlier in this series. The PHP Web interface collects
information from users and sends the session data to the Java business application
for processing and for a response.
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Tutorials |
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15 Jan 2008 |
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AIX NFS Version 4 configuration over Kerberos inter-realm setup
Learn how to configure an inter-realm setup between IBM(R) Network
Authentication Service (IBM NAS) and Microsoft(R) Active Directory for AIX(R)
Network File System (NFS) Version 4.
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Articles |
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08 Jan 2008 |
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Overview of AIX page replacement
Go through detailed information on how the AIX(R) virtual memory manager
(AIX VMM) works and how to use tunable parameters to adjust the operation of the AIX
VMM. The AIX VMM is responsible for managing all of the memory on a system. The
operation of the AIX VMM is critical to the performance of a system, and it also
provides several tunable parameters that you can use to optimize its operation for
different workloads.
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Articles |
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08 Jan 2008 |
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IBM Network Authentication Service KDC and administration servers discovery
using LDAP for AIX
Implement effective ways to configure IBM(R) Network Authentication Service
(IBM NAS) with Lightweight Directory Access Protocol (LDAP) on AIX(R) to get the
maximum reliability and scalability in your Kerberos environment. This article shows
you different ways of setting up the dynamic, yet consistent, Kerberos environment.
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Articles |
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31 Dec 2007 |
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Using Net-SNMP and IPython
Data centers and production facilities are embracing Simple Network
Management Protocol (SNMP) as a way to get a handle on dense and complex
infrastructures. The Net-SNMP library now has Python(TM) bindings, and it is an
excellent choice to write custom code to manage a data center or supplement
full-blown Network Management Systems (NMS). Due to the complexity of SNMP, using an
interactive tool like IPython can make all the difference. In this article, learn
how to use Net-SNMP, Python, and the IPython shell to interactively explore and
manage a network.
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Articles |
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11 Dec 2007 |
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Kerberos policy management in IBM Network Authentication Service for AIX
Version 5.3
Use IBM(R) Network Authentication Service (IBM NAS) for AIX(R) to learn more
about the Kerberos policy management for passwords, and get acquainted with anything
and everything about IBM NAS policy. Also examine complete commands, examples, and
scenarios to assist you in using the kerberos password policy to its fullest.
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Articles |
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11 Dec 2007 |
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Accessing DFS and NFS V4 directories simultaneously
This article provides guidance to DCE or DFS users who are migrating
from DCE or DFS to Kerberos/NFS V4. During the
transition period, these users need to be authenticated and authorized to use both DFS
and NFS V4 directories. This article answers some basic questions, such as,
"Can the DCE authentication server be used as a Kerberos server for NFS V4 with a
Kerberos client?"
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Articles |
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04 Dec 2007 |
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Systems Administration Toolkit: Network scanning
Discover how to scan your network for services and how to regularly monitor
your services to keep uptimes to a maximum. A key way of ensuring the security of
your network is to know what is on your network and what services individual
machines are at risk of exposure. Unauthorized services, such as Web servers or file
sharing solutions, not only degrade performance, but others can use these services
as routes into your network. In this article, learn how to use these same techniques
to ensure that genuine services remain available.
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Articles |
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04 Dec 2007 |
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Optimizing AIX 5L performance: Tuning network performance, Part 1
This three-part series on AIX(R) networking focuses on the challenges of
optimizing network performance. In the first installment, you’ll review some best
practices for network configuration, and utilize those practices for efficient
monitoring of your hardware by taking advantage of network tools such as netstat,
netpmon, entstat, and nmon. You’ll also examine certain tools used to look at your
interfaces to see how to configure them.
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Articles |
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20 Nov 2007 |
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AIX 6.1 Workload Partitions
Workload Partitions (WPARs) are a new virtualization feature of AIX 6.1.
This article helps you decide whether WPARs are right for your AIX workloads, and
then gives you step-by-step guidance on how to learn more about WPARs and begin
using them.
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Articles |
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20 Nov 2007 |
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Emacs editing environment, Part 7: Let Emacs help you out
Part 7 of this series shows you why Emacs is the self-documenting
editor, and the many ways in which you can take advantage of the help and assistance
offered in this editor. In this tutorial, learn about describing keystrokes,
commands, and functions. You'll also read, browse, and search through a complete
Emacs reference manual.
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Tutorials |
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13 Nov 2007 |
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Virtualization in System p
Capitalize on the benefits virtualization can provide to maximize
the usage of your resources. Virtualization is a modern approach and is available on
all System p(TM) servers, starting from POWER4. This article discusses physical
and logical partitioning, with special relevance to how to implement logical
partitioning.
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Articles |
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13 Nov 2007 |
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Windows to UNIX porting, Part 2: Internals of porting C/C++ sources
Part 1 of this series covered the typical C/C++ project types you work with
in a Microsoft(R) Visual Studio(R) environment and introduced the processes of porting
dynamic and static library project variants to a UNIX(R) platform. Part 2 delves
into some of the compiler options used to build Visual C++ projects and the UNIX and
g++ equivalents, takes a closer look at the g++ attribute mechanism as it relates to
porting, and examines some common problems you might encounter while porting from a
32-bit Windows(R) environment to a 64-bit UNIX environment. It concludes with an
overview of concepts for porting multithreaded applications and an example project
that shows you how to pull all these pieces together.
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Articles |
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06 Nov 2007 |
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Know your TCP system call sequences
The TCP/IP programming interface provides various system calls to
help you effectively use the protocol. The TCP stack code is vast, and a complete
call sequence down to the kernel level would help in understanding the TCP stack.
This article is a one-stop shop for details about TCP stack level function calls and
describes the sequence of function calls, at the kernel level, when system calls are
made at the application level. In this article, review and study the TCP call sequence, including references to FreeBSD and
important function calls that occur in the TCP stack after a system call is made at
the user level.
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Articles |
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06 Nov 2007 |
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Key-enabling kernel extensions for the IBM AIX Version 6.1 operating system
Diagnose and service memory overlays and addressing errors more efficiently
with POWER6(TM) processors and AIX(R) Version 6.1. In the AIX operating system,
software components share the kernel address space, creating a serviceability issue
for the AIX kernel and kernel extensions.
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Articles |
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30 Oct 2007 |
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The power of Network Installation Manager
Get step-by-step instructions for configuring a Network Installation Manager
server and clients using the smitty tool. If you have an environment with many
AIX(R) systems, then you know that installing, upgrading, and maintaining the
software can take a considerable amount of time. The AIX Network Installation Manager can help you
with installation and software maintenance in a client and server environment.
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Articles |
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30 Oct 2007 |
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Systems Administration Toolkit: Monitor user usage
Explore new ways to record UNIX(R) logins and other system activities in a
number of different logs, and take advantage of this information to monitor user usage. This can
be helpful from a number of perspectives, either to use for chargeback reporting or
just to get an idea of how busy and active individual users are on the system to
help when planning and allocating resources.
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Articles |
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23 Oct 2007 |
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Learn the Perl/Tk module, Part 1: The basics of Perl/Tk
Although Perl-based Web interfaces have limitations, Perl is one of the most
commonly used Web development languages. UNIX(R) users who have a programming
background in shell scripting, Perl, or another language can breathe new life into
Perl-based Web interfaces by using the Perl/Tk module.
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Articles |
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16 Oct 2007 |
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POSIX file capabilities: Parceling the power of root
Linux has been using capabilities for years, but has recently acquired POSIX
file capabilities. POSIX file capabilities split root user powers into smaller
privileges, such as the ability to read files or to trace processes owned by another
user. By assigning capabilities to a file, you can enable an unprivileged user to
execute the file with those specified privileges. In this article, learn how to
program using capabilities and how to switch on the ability of your system setuid
root binaries to use file capabilities.
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Articles |
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16 Oct 2007 |
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Implement lower timer granularity for retransmission of TCP
Reduce the overhead of per-tick processing with a timer wheel algorithm that
implements the retransmission timer. The AIX(R) Transmission Control Protocol (TCP)
has seven timers (per-connection) and uses global timer functions with two
granularities to implement the timers. In this article, learn how to get lower
granularity with your retransmission timer by using the AIX TCP fast timer, and
discover other advantages of lower timer granularity.
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Articles |
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09 Oct 2007 |
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| |
Optimizing AIX 5L performance: Tuning disk performance, Part 3
Part 3 of this series covers how to improve overall file system performance,
how to tune your systems with the ioo command, and how to use the filemon and
fileplace utilities.
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Articles |
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09 Oct 2007 |
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Emacs editing environment, Part 6: Customize your Emacs world
This tutorial, the sixth in a series, walks you
through some of the useful ways you can customize and configure the Emacs
environment. Learn how to change everything about the Emacs environment to your
liking, from the behavior of minor modes to the default key bindings. Along the way,
figure out how to set variables, make all your customizations automatic with a startup file,
save and recall any window and frame customizations that you make, and use the easy
customizer that comes built into Emacs.
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Tutorials |
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02 Oct 2007 |
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| |
nanoHUB does remote computing right
nanoHUB is a virtual computing center created to support nanotechnology
research. It uses open source components to achieve far more powerful results than
previous "remote access" facilities. This article details specific configurations
and enhancements necessary to make the most of the performance, security, and
usability such common software as VNC and WebDAV provides.
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Articles |
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02 Oct 2007 |
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AIX disaster recovery
Recovering AIX(R) IT resources after a disaster requires the personnel
performing the recovery to concentrate on working the prepared plan. Unexpected
deviations from the plan can cause immense delays in the disaster recovery project. Often, these
unexpected deviations are due to a lack of adherence to business continuity
policies, guidelines, standards, and procedures. This article identifies resource
conflicts that typically occur during a disaster recovery implementation and
provides suggestions for resolving these conflicts.
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Articles |
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18 Sep 2007 |
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| |
Windows to UNIX porting, Part 1: Porting C/C++ sources
Software programs are often made to run on systems that are completely
different from the system in which the program is coded or developed. This process
of adapting software across systems is known as porting. You might need to port
software for any one of several reasons. Perhaps your end users want to use the
software in a new environment, such as a different version of UNIX(R), or perhaps
your developers are integrating their own code into the software to optimize it for
your organization's platform.
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Articles |
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18 Sep 2007 |
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Top ten AIX and UNIX articles and tutorials—August 2007
See what AIX(R) and UNIX(R) content your peers found most valuable.
|
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11 Sep 2007 |
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| |
Systems Administration Toolkit: Testing system validity
Examine methods of storing and later checking the validity of your
configuration files. Despite all the security systems you have in place, it is still
possible that somebody has accessed your system and changed your configuration or
security settings.
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Articles |
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11 Sep 2007 |
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| |
Install and configure NIS+
Ease your system administration tasks and use Network Information Service
plus (NIS+) to quickly handle maintenance and security issues for information. NIS+
is a network-wide naming and administration service that works on a client-server
model. The server maintains all the details of the users and clients in a central
database. In this article, get step-by-step instructions on how to install,
configure, and administer NIS+.
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Articles |
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28 Aug 2007 |
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| |
Speaking UNIX, Part 12: Do-it-yourself projects
If your UNIX(R) system lacks a tool you need, chances are you can find an
apt solution in the enormous inventory of software available online. This month,
learn how to build software from source code.
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Articles |
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21 Aug 2007 |
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| |
Develop with Java and PHP technology on AIX Version 5.3, Part 5: Installing and integrating the PHP Java Bridge
It is possible to develop applications that employ both Java(TM) and PHP
technology on AIX(R). Part 5 of this six-part series teaches you how to install, set
up, and integrate the PHP Java Bridge into the Tomcat application server, making you
all set for developing a PHP Web interface.
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Articles |
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21 Aug 2007 |
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Logging in multi-threaded applications efficiently with ring buffer
No software is bug free, and application users can encounter unexpected
results during the run time of programs. To analyze and find the cause of problems,
logging is a method widely used by programmers. In this article, learn how to use a
ring buffer for efficient logging with memory operations in place of file
operations. Choosing an appropriate size for the buffer ensures that relevant
messages are dumped, which can help when debugging.
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Articles |
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14 Aug 2007 |
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System Administration Toolkit: Distributed administration using SSH
Use Secure Shell (SSH) to run commands on remote UNIX(R) systems and, with
some simple scripts, put together a system that enables you to manage many systems
simultaneously from one machine without having to log in directly to the machines
themselves. Also examine the basics of a distributed management system and some
scripts and solutions using the technique.
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Articles |
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14 Aug 2007 |
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Emacs editing environment, Part 5: Shape your Emacs view
This tutorial, the fifth in a series,
shows you how to manage and manipulate the shape your Emacs session -- examine how to
partition the Emacs screen, create multiple X client windows for a single Emacs
session, and display multiple buffers in each window, dividing the screen with
horizontal and vertical divisions. You also learn about mouse window control and
characteristics so that by the time you're through, you can make your
Emacs session look and work the way you want it to.
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Tutorials |
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07 Aug 2007 |
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Use auditing to track reads and writes in a file
In this article, discover how to track several events on AIX(R) with auditing, a major
feature of AIX security, and learn how to use auditing to keep track of the read and
write operations on a file. Also examine commands, such as ls or istat,
to check a file's time stamp.
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Articles |
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07 Aug 2007 |
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Expect plays a crucial role in network management
Expect is an indispensable tool for efficient system and network management,
and it's also widely misunderstood. In this article, find out the benefits Expect
provides in common use cases.
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Articles |
|
31 Jul 2007 |
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| |
Develop with Java and PHP technology on AIX Version 5.3, Part 4: Building the Java business application
Part 4 of this six-part series shows you how to deploy a Java(TM) business
application and database as a Java Web service running on a pSeries(R) system with
the IBM AIX(R) 5.3 operating system.
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Tutorials |
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24 Jul 2007 |
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| |
Optimizing AIX 5L performance: Tuning disk performance, Part 2
Discover how to use appropriate disk placement prior to creating your
logical volumes to improve disk performance. Part 2 of this series focuses on
monitoring your logical volumes and the commands and utilities (iostat, lvmstat,
lslv, lspv, lsvg) used to analyze results.
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Articles |
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24 Jul 2007 |
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Leverage Nagios with plug-ins you write
Learn more about Nagios and find out what new system monitoring possibilities exist
with this software. Nagios is open source monitoring software that scans hosts, services, and
networks for problems. The two main differences between Nagios and other similar
packages are that Nagios reduces all information to "working," "questionable,"
and "failure" statuses; and Nagios supports a particularly rich "ecosystem" of
plug-ins. These features result in effective installations where users are not
overwhelmed with details, but have just the information they need.
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Articles |
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17 Jul 2007 |
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Emacs editing environment, Part 4: Options, registers, and bookmarks
Take charge of your editing session within Emacs and use it to your
advantage. This tutorial is the fourth in a series, and shows you three areas of
Emacs that control some aspect of the editing session: various command-line options,
the register, and bookmark facilities for setting and saving positions and data.
Knowing how and when to use these features, and what tricks are possible with them,
are important topics in power editing.
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Tutorials |
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17 Jul 2007 |
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| |
Top ten AIX and UNIX articles and tutorials—July 2007
See what AIX(R) and UNIX(R) content your peers found most valuable.
|
|
|
|
15 Jul 2007 |
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| |
Optimizing AIX 5L performance: Tuning disk performance, Part 1
Learn more about direct I/O, concurrent I/O, asynchronous I/O, and best
practices for each method of I/O implementation. This three-part series on the
AIX(R) disk and I/O subsystem focuses on the challenges of optimizing disk I/O
performance. While disk tuning is arguably less exciting than CPU or memory tuning,
it is a crucial component in optimizing server performance. In fact, partly because
disk I/O is your weakest subsystem link, you can do more to improve disk I/O
performance than on any other subsystem.
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Articles |
|
10 Jul 2007 |
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| |
Top ten AIX and UNIX articles and tutorials—June 2007
See what AIX(R) and UNIX(R) content your peers found most valuable.
|
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10 Jul 2007 |
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System Administration Toolkit: Build intelligent, unattended scripts
Look at how to create scripts that are able to record their output, trap and
identify errors, and recover from errors and problems so that they either run
correctly or fail with a suitable error message and report. Building scripts and
running them automatically is a task that every good administrator has to handle,
but how do you handle the error output and make intelligent decisions about how the
script should handle these errors? This article addresses these issues.
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Articles |
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03 Jul 2007 |
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Speaking UNIX, Part 11: Ramble around the UNIX file system
Many directories in the UNIX(R) file system serve a special purpose, and
certain directories are named per long-standing convention. In this installment of
the "Speaking UNIX" series, discover where UNIX stores important files.
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Articles |
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21 Jun 2007 |
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Top ten AIX and UNIX articles and tutorials—May 2007
See what AIX(R) and UNIX(R) content your peers found most valuable.
|
|
|
|
20 Jun 2007 |
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| |
Top ten AIX and UNIX articles and tutorials—April 2007
See what AIX(R) and UNIX(R) content your peers found most valuable.
|
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20 Jun 2007 |
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Speaking UNIX, Part 10: Customize your shell
You can customize the UNIX(R) shell to save time, to save typing, and to adapt to your
style of work. Shell startup files capture your preferences and recreate your shell
environment session after session, even machine to machine.
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Articles |
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29 May 2007 |
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| |
Developing a file system for AIX
Learn the intricacies of the AIX(R) file system framework. Every operating
system provides a native kernel framework that kernel developers have to understand
and adhere to when developing a piece of a kernel component for that operating
system. This article sheds some light on the AIX file system framework. You need to
understand the framework in order to develop a new file system, or to port an
existing file system to the AIX operating system.
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Articles |
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29 May 2007 |
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Explore powerful UNIX writer's tools
Long ago, UNIX(R) had a proprietary package called the Writer's Workbench
(WWB). Developers, administrators, and technical writers who used to use this
package in their work deeply miss it -- its powerful capabilities made the UNIX
workstation a preferred environment for document editing and proofreading. Today,
many new implementations of those tools are available for all UNIX systems, and you
can also find open source equivalents of the key WWB tools. Discover these tools and
learn how to use them, building a custom style guide checker in the process.
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Tutorials |
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22 May 2007 |
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Emacs editing environment, Part 3: Advanced Emacs text operations
This tutorial, the third in a series, builds on what you've learned by
taking you through a tour of some of the more advanced Emacs features for text
operations. You get a hands-on demonstration of advanced editing techniques,
including how to perform a recursive edit, mark and use rectangles of text, and
handle complex selection techniques using the kill ring and the secondary selection.
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Tutorials |
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01 May 2007 |
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LDAP configuration management and troubleshooting on AIX
Learn how to diagnose IBM Directory Server problems and how to identify what
is needed to resolve the issues. This article is a quick reference for IBM
Directory Server configuration management on AIX(R).
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Articles |
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01 May 2007 |
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Top ten AIX and UNIX articles and tutorials -- March 2007
See what AIX(R) and UNIX(R) content your peers found most valuable.
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26 Apr 2007 |
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Optimizing AIX 5L performance: Monitoring your CPU, Part 2
Identify which AIX(R) tools to use to monitor your Central Processing Unit
(CPU) for a given situation and find out why some tools might be better than others.
Part 1 of this series discussed the tuning methodology and the importance of having
procedures for CPU performance tuning. It also briefly introduced some performance
tools to use as a part of your tuning repertories, gave an overview of the POWER
CPU, and discussed how the architectural improvements of the evolution of the POWER
Chip have contributed to the hardware improvements of the System p(TM) product line.
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Articles |
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24 Apr 2007 |
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Optimizing AIX 5L performance: Monitoring your CPU, Part 1
Just when you thought it was going to be an ordinary day, you receive a
phone call and hear the worst six words dreaded by most AIX(R) administrators. Which
of course is, "Why is the system so slow?" If you have done your homework, the
answer to that question is relatively simple.
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Articles |
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17 Apr 2007 |
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Speaking UNIX, Part 9: Regular expressions
Virtually all non-trivial problems require you to filter good data from bad.
Discover the many UNIX(R) command line utilities that use regular expressions to
discern the relevant from the irrelevant.
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Articles |
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17 Apr 2007 |
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Emacs editing environment, Part 2: Learn the essential modes and editing features of Emacs
One of the powerhouses of UNIX computing, the open source Emacs editor is
a large, complex application that does everything from edit text to function as a
complete development environment. This tutorial, the second in a series, introduces
you to some of the essential concept of modes, shows you some of the powerful text
manipulation functions available, and teaches you how to use the built-in search,
replace, and spell check facilities of Emacs.
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Tutorials |
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10 Apr 2007 |
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Speaking UNIX, Part 8: UNIX processes
On UNIX(R) systems, each system and end-user task is contained within a
process. The system creates new processes all the time, and processes die when a task
finishes or something unexpected happens. Here, learn how to control processes and
use a number of commands to peer into your system.
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Articles |
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03 Apr 2007 |
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Set up Kerberos Version 5 KDC to use AES encryption
Learn how to set up a Key Distribution Center (KDC) to use Advanced
Encryption Standard (AES) encryption to secure tickets. Developers use KDC in
systems to control the permission for users to access certain services. The KDC uses
tickets as a means to flag permission for accessing a particular service, or for
authenticating users and providers of services.
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Articles |
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03 Apr 2007 |
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Back up and restore your AIX system, Part 2: Implementing your backup strategy and restoration processes
Explore different recovery options to restore your data. Part 2 of this
two-part series shows you how to implement the backup strategy discussed in Part 1.
Part 1 covered the importance of backing up your system, the methods available to
you through the command line, how to use the System Management Interface Tool (SMIT)
to perform backups, and the difference between system data and user data.
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Tutorials |
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27 Mar 2007 |
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State of the VNC art
Virtual Network Computing (VNC) is widely used, but it is also widely
misunderstood. This article carefully outlines both the VNC basics that make it such
a value during daily development and administration chores, along with a few of the
latest VNC advances.
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Articles |
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27 Mar 2007 |
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Top ten AIX and UNIX articles and tutorials -- January 2007
See what AIX(R) and UNIX(R) content your peers find interesting.
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14 Mar 2007 |
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Rexx and what it means for AIX
Nearly thirty years of growth haven't exhausted the the potential of the REstructured eXtended eXecutor (Rexx) language. The first of the widely used "scripting" languages continues to expand its capabilities and platform range, and it makes for a particularly good match with AIX(R).
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Articles |
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13 Mar 2007 |
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Back up and restore your AIX system, Part 1: The when, why, and how of backing up
Take a look at some of the reasons, methods, and tools for backing up your AIX(R) system. As business and data changes at the speed of light, your systems are at an even greater risk of system corruption and lost data. To protect your company's data, you need to have a solid backup strategy, multiple backups, offsite storage of data, and a fully tested and proven plan of restoring data to your systems. Having a solid backup strategy decreases company downtime.
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Tutorials |
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13 Mar 2007 |
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Transition from Solaris to AIX
So you've been the UNIX(R) guru on your team for years now and senior management has determined, without your input, to migrate to IBM from Sun Microsystems. Other than updating your resume, what do you need to do? Can you make the transition to AIX(R)? What does IBM offer as an alternative to either VERITAS or Solaris Volume Manager (SVM)? In this article, use the filesystem management and tools available to you on AIX to make your transition easier.
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Articles |
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06 Mar 2007 |
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Partition Load Manager logging and monitoring
Accomplish server resource virtualization with the help of the Partition Load Manager. Because the Partition Load Manager reallocates resources dynamically across partitions based on their workload, conventional tools for monitoring and analyzing resources become useless. So, what’s a developer to do? You can use the On-demand Monitoring System (OMS) tool for the Partition Load Manager. It works as an integral component providing real-time and historical utilization and allocation data.
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Articles |
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23 Feb 2007 |
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Share application data with UNIX System V IPC mechanisms
The UNIX(R) operating system provides a rich set of features that allows processes to communicate with each other. Known as Inter-Process Communication (IPC), you can use this communication method to reconfigure an application at run time or to share data between different processes that are running in parallel. This article teaches you how to identify the methods that applications can use to communicate with each other, select the most appropriate method for your application, and begin your implementation.
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Articles |
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30 Jan 2007 |
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Avoid traps when porting Java Web applications from Windows to AIX
Examine three traps you could fall in when porting Java(TM) Web applications from Windows(R) to AIX(R), and learn how to maneuver around them. When developing applications, you normally do so in a development environment and then deploy to a production environment. If you develop on Windows and deploy to a UNIX(R)-like platform, you might encounter subtle pitfalls. The first trap sets up different line separators in Windows and AIX, the second shows the best approach to locate a file in different development environments and operating systems, and the third is a common exception in socket communication.
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Articles |
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23 Jan 2007 |
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AIX 5L LDAP user management
Get an overview of the Lightweight Directory Access Protocol- (LDAP) related enhancements in the AIX 5L(TM) operating system V5.3 TL5 update. Some of the enhancements include support for Active Directory, multiple base distinguished (DN) support, and extended base DN format.
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Articles |
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27 Dec 2006 |
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IBM Cluster Systems Management: Installing the Webmin tool for Web access
Learn to install and use the Webmin UNIX(R) system administration tool so you can use a standard Web interface to remotely manage a clustered environment This article is an update to the 2005 developerWorks article about the IBM Cluster Systems Management tool.
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Articles |
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22 Dec 2006 |
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UNIX tools for exploring object files
The programs that run on a UNIX(R) system follow a careful design known as the object file format. Learn more about the object file format and the tools that you can use for exploring object files found on your system.
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Articles |
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21 Nov 2006 |
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Update your AIX system with SUMA
Learn how the Service Update Management Assistant (SUMA), a feature first introduced in AIX 5L(TM) Version 5.3, automates the update process for AIX(R) systems. We'll also examine issues surrounding AIX updates and how to implement specific steps to overcome them.
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Articles |
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17 Nov 2006 |
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Introducing SMIT
Get an introduction to SMIT and how it's used. The System Management Interface Tool (SMIT) is an interactive application that simplifies virtually every aspect of AIX(R) system administration. By the end of this article, you'll agree that SMIT is the AIX systems administrator's best friend.
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Articles |
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26 Sep 2006 |
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Text processing with UNIX
The origin of UNIX(R) lies in simple text processing, and its command-line environment remains one of the most powerful text processing tools available. By combining a series of simple commands to make up a complex text transformation, the tools available from UNIX let you build nearly any text processing engine you could need.
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Articles |
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01 Aug 2006 |
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Multipurpose multimedia processing with GStreamer
This article introduces you to GStreamer, a universal multimedia processing library that makes multimedia handling easy.
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Articles |
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11 Jul 2006 |
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nmon performance: A free tool to analyze AIX and Linux performance
This free tool gives you a huge amount of information all on one screen. Even though IBM doesn't officially support the tool and you must use it at your own risk, you can get a wealth of performance statistics. Why use five or six tools when one free tool can give you everything you need?
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Articles |
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27 Feb 2006 |
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