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Using the GNU text utilities
This introductory- to intermediate-level tutorial introduces the GNU text utilities and shows how to use them for processing log files, documentation, structured text databases, and other textual sources of data or content.
09 Mar 2004
UNIX tips and tricks for a new user, Part 4: Some nifty shell tricks
When writing a shell program, you often come across some special situation that you'd like to handle automatically. This tutorial includes examples of such situations from small Bourne shell scripts. These situations include base conversion from one string to another (decimal to hex, hex to decimal, decimal to octal, and so on), reading the keyboard while in a piped loop, subshell execution, inline input, executing a command once for each file in a directory, and multiple ways to construct a continuous loop. Part 4 of this series wraps up with a collection of shell one-liners that perform useful functions.
Also available in: Chinese  
20 Feb 2007
UNIX tips and tricks for a new user, Part 3: Introducing filters and regular expressions
Discover the power of UNIX(R) filters. In this tutorial, you'll learn about the grep family in depth, including the syntax of regular expressions in many UNIX utilities. You'll also find out more about the stream editor, sed, as well as examine the awk pattern scanning language through examples and explanations.
Also available in: Chinese  
12 May 2006
UNIX tips and tricks for a new user, Part 1: File maintenance tools
Systems administrators can use a number of programs to maintain files in a UNIX(R) system from the command line. In this tutorial, you'll experiment with commands, such as cd, cp, and tar, to navigate a UNIX file system from the command line and work with files and directories. The cd command changes directories, cp duplicates files or directories, and tar quickly groups files into an archive. You'll also learn how to deal with file permissions and perform simple input/output.
Also available in: Chinese  
26 Sep 2006
The making of MetroSphere, Part 10: Installing WebSphere Portal on Red Hat Linux: DB2 and IDS
This tutorial is the first half of a comprehensive overview of installing IBM WebSphere Portal 4.2 in a two-tier Red Hat Linux environment. The first tier is the LDAP server used for user authentication and single-sign-on capabilities, which is covered in this tutorial. The second tier is the Portal Server itself, which is covered in Part 11 of this series. With both parts, all facets of the installation are covered including component installation, configuration, and verification.
19 May 2003
Support multiple keyboard layouts in web-based VNC apps
Take advantage of a recently introduced browser API (available in Chrome, Firefox, and Opera) to add support for multiple keyboard layouts to web-based VNC clients.
23 Aug 2016
SAN switch performance monitoring using IBM Network Advisor
This tutorial explains the steps for the installation and configuration of IBM Network Advisor 12.1.5 on RHEL 6 to manage storage area network (SAN) switches running OS 7.x.x.
Also available in: Chinese  
29 May 2014
Multi-disk management for IBM Systems Director VMControl, Part 2: Multi-disk management for capturing a virtual appliance and revision control
IBM Systems Director is a platform management solution that is used to manage physical and virtual systems. IBM Systems Director provides systems management personnel with a single pane of glass, helping reduce IT management complexity and cost. VMControl is a advanced plug-in installed on top of IBM Systems Director to provide the virtualization capabilities. This tutorial talks about the multi-disk management and revision control for capturing virtual appliances using the VMControl Representational State Transfer (REST) application programming interfaces (APIs) and command line interface (CLI).
Also available in: Chinese  
14 May 2013
Multi-disk management for IBM Systems Director VMControl, Part 1: Multi-disk management for virtual server using IBM Systems Director VMControl
IBM Systems Director is a platform management solution that is used to manage physical and virtual systems. IBM Systems Director provides systems management personnel with a single pane of glass, helping reduce IT management complexity and cost. IBM Systems Director VMControl™ is an advanced plug-in installed on top of IBM Systems Director to provide virtualization capabilities. This tutorial talks about multi-disk management for virtual server using the VMControl Representational State Transfer (REST) application programming interfaces (APIs) and command-line interface (CLI).
Also available in: Chinese  
06 May 2013
LPI exam prep: Web services
In this tutorial, the fourth in a series of seven tutorials covering intermediate network administration on Linux, David Mertz continues preparing you to take the Linux Professional Institute Intermediate Level Administration (LPIC-2) Exam 208. Here, David Mertz discusses how to configure and run the Apache HTTP server and the Squid proxy server.
Also available in: Spanish  
25 Apr 2006
LPI exam prep: System security
In this tutorial, the sixth of seven tutorials covering intermediate network administration on Linux, David Mertz continues preparing you to take the Linux Professional Institute Intermediate Level Administration (LPIC-2) Exam 202. By necessity, this tutorial touches briefly on a wide array of Linux-related topics from a security-conscious network server perspective, including general issues of routing, firewalls, and NAT translation and the relevant tools. It addresses setting security policies for FTP and SSH; reviews general access control with tcpd, hosts.allow, and friends; and presents some basic security monitoring tools and shows where to find security resources.
13 Jun 2006
LPI exam prep: Networking configuration
This is the first of seven tutorials covering intermediate network administration on Linux. In this tutorial, David Mertz shows you how to configure a basic TCP/IP network, from the hardware layer (usually Ethernet, modem, ISDN, or 802.11), through the routing of network addresses. Higher level servers that may operate on these configured networks are covered in later tutorials.
Also available in: Spanish  
08 Nov 2005
LPI exam prep: Network client management
In this tutorial, the fifth in a series of seven tutorials covering intermediate network administration on Linux, David Mertz continues preparing you to take the Linux Professional Institute Intermediate Level Administration (LPIC-2) Exam 202. By following this tutorial, you will examine several protocols' centralized configuration of network settings on clients within a network. DHCP is widely used to establish basic handshaking to clients machines such as assigning IP addresses. At a higher level, NIS and (more often) LDAP are used for arbitrary shared information among machines on a network. This tutorial also discusses PAM, which is a flexible, networked, user authentication system.
Also available in: Japanese   Portuguese   Spanish  
17 May 2012
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