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OSA polling enhancements (APAR PJ45555)
OSA polling enhancements improve processing for TCP/IP inbound traffic that is destined to the z/TPF system . These enhancements also reduce the frequency of OSA read buffer overruns and balance inbound TCP/IP work better across all I-streams. Each...
from Blog: TPF Blog
Modified on by Jamie_Farmer
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Socket lock contention enhancements (APAR PJ43697)
Socket lock contention enhancements improves the efficiency of TCP/IP and socket API processing on the z/TPF system. In the z/TPF system , the socket block lock is extensively used in processing TCP/IP and socket APIs. TCP/IP and socket API...
from Blog: TPF Blog
Modified on by Jamie_Farmer
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安全，并不简单
适宜读者：一年及以上主机经 验 背景知识：z/OS 基础知 识 原文链接： http://publibfp.dhe.ibm.com/epubs/pdf/e0z3n110.pdf P6 原文作者：MIKE KASPER AND MIKE SPIEGEL 别误会 ， 我们 不是说在 做 z/OS 安全配置 的时候 通常 都会出错 ，我 们 只是 见到过一些 安全 方面的失误 ， 所以想讨论 一些疏忽 的共性 (常见的疏忽)。尽管 我们 相信 你...
from Blog: IBM System z 中国实验室
Modified on by IBM System z 中国实验室
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PJ43020 - UNIX Domain Socket Support on z/TPF
With APAR PJ43020, the z/TPF TCP/IP stack now supports the use of UNIX domain sockets. UNIX domain sockets allow for interprocess communication on the same machine while using sockets as a transport mechanism. The implementation of UNIX domain sockets will...
from Blog: TPF Blog
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PJ42623 – z/TPF Enhancement to Expand the TCP/IP Client Port Range
With APAR PJ42623, the z/TPF TCP/IP stack has been updated to change the client port range of each local IP address from 1024-5000 to 49152-65535. This change was made to comply with RFC 6335 regarding port number assignments, allow for a larger number of...
from Blog: TPF Blog
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Did you know? - SNMP support on z/TPF
One goal of this blog is to highlight features and function on z/TPF that clients might not know about. Simple Network Management Protocol (SNMP) is one of these features that is not widely used. Background SNMP is a standard way to manage and gather...
from Blog: TPF Blog
Modified on by JeffVanMinde
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z/VSE 5.1 / Linux on System z: OSA performance improvements with APAR DY47394 Community Blog
z/VSE 5.1 APAR DY47394 may improve the performance for Hipersocket connections between z/VSE and Linux on System z, when the number of queues is unbalanced. The number of QDIO input queue buffers can now be configuered as a multiple of 8 in the range from 8 to...
from Blog: Blue Blog
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IPv6/VSE Kommunikation kann nun mit SSL verschluesselt werden Community Blog
Die Funktionalitaet des IPv6/VSE TCP/IP Stacks wurde folgendermassen erweitert: Das IPv6/VSE Produkt unterstuetzt nun das Secure Socket Layer (SSL) Protokoll fuer den sicheren Datentransfer vom z/VSE zum Remote System und zurueck. Folgende Protokolle werden...
from Blog: Blue Blog
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WebSphere MQ Channels - Are We Really Just the Messenger?
MarkWomack
Tags:
econnrefused
wmq
tcp/ip
0467
reset
ibm-blog
econnreset
047b
websphere
0461
046a
0460
045f
tcprc
045e
045d
0480
tcp
047c
lu62
0469
mq
2 Comments
21,307 Views
The answer to that question is "well, yes pretty much". If a WebSphere MQ channel fails and you're betting on root cause you can likely win that bet if you know that most channels fail because of an underlying problem either within the network,...
Modified on by Mike Almasy
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PM54383 DDF Cancel Thread Community Blog
Overview: If an application executes SQL that refers to a remote site but, for what ever reason, the operator/user wants to cancel the associated DB2 thread or application, the cancel of the DB2 thread will not be fully effective until the remote system...
from Blog: Db2 for z/OS Exchange Forum
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Changing Default Listener Port 1414 in MQ
RichardHamilton
Tags:
wmq
websphere
channel
tcp
1414
mqseries
listener
port
mq
tcp/ip
tcpip
55,140 Views
You're changing the queue managers default listener port. Be very careful, because this could cause channel problems, or other unexpected results, which are difficult to debug. Each queue manager is created with the default listener port set to 1414. This...
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This week's developerWorks newsletter: Per your request, jQuery Mobile security! Community Blog
John Swanson
Tags:
linux
edition
developerworks
developer
newsletter
jquery
ajax
java
ibm
boost
tcp/ip
couchapp
couchdb
news
weekly
mobile
10,245 Views
This week's developerWorks newsletter intro focuses on our (reader-inspired) jQuery Mobile security feature. Not subscribed? Sign up for your customized newsletter today! ************************
Welcome, developers! A few weeks ago, I encouraged (dare I...
from Blog: developerWorks enthusiasts
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