How to find out which user issue the MQ command?

(1) enable qmgr command event
     alter qmgr cmdev(enabled)

(2) the command event will be put into SYSTEM.ADMIN.COMMAND.EVENT queue

(3) use MH05 SupportPac to parse the command events or

(4) use MS0P SupportPac to format the command events in MQ Explorer

command events
https://www.ibm.com/support/knowledgecenter/SSFKSJ_7.1.0/com.ibm.mq.doc/mo11290_.htm

MH05: WebSphere MQ - Events Display Tool
http://www-01.ibm.com/support/docview.wss?uid=swg24029241

MS0P: WMQ explorer plugin
http://www-01.ibm.com/support/docview.wss?uid=swg24011617

How to find out the high CPU thread for WAS on Windows

follow the CPU high mustgather for Windows platform

http://www-01.ibm.com/support/docview.wss?uid=swg21111364

In the threadsout.txt, the Handle column stands for the thread id. You can use this thread id to find out
the java stack in the javacore files.

Install Oracle 11g missing package pdksh-5.2.14 issue

RHEL6 安裝 Oracle 11g 遭遇 pdksh-5.2.14 不存在
http://blog.roodo.com/oraksumi/archives/41081323.html

原因在於 OUI 在進行環境檢查時執行的是下列 command :
----------------------------------------------------------------------------------------
/bin/rpm -q --qf %{version} redhat-release
----------------------------------------------------------------------------------------
在 RHEL6 的環境下 redhat-release 已經被取代為 redhat-release-server-6Server，因此上述 command 會造成了缺少 "elfutils-libelf-devel-0.97" 或是 "pdksh-5.2.14" Package 的錯誤。

解決方式於安裝介質目錄下 database/stage/cvu/cv/admin 找出 cvu_config 這個檔案並且編輯他，將其中的 CV_ASSUME_DISTID=OEL4 改為 CV_ASSUME_DISTID=OEL6 ，如此一來 OUI 便可以正確的檢查系統所需的 Package 了。

由於 "elfutils-libelf-devel-0.97" 或是 "pdksh-5.2.14" 這兩個 Package 並不是必要的，若不想更動 cvu_config 這個檔案，那麼在安裝過程中忽略這個錯誤就可以了。

http://blog.roodo.com/oraksumi/archives/41081323.html

IBM MQ FAQ for Long Term Support and Continuous Delivery releases

http://www-01.ibm.com/support/docview.wss?uid=swg27047919

IHS and WAS fix for CVE-2016-2183

For IHS:

IBM HTTP Server and Sweet32: Birthday attack (CVE-2016-2183)

http://www-01.ibm.com/support/docview.wss?uid=swg21991548

For WAS:

Security Bulletin: Multiple vulnerabilities in IBM® Java SDK affects WebSphere Application Server January 2017 CPU

http://www-01.ibm.com/support/docview.wss?uid=swg21998379

How to find out user id and SID mapping

PsGetSid
https://docs.microsoft.com/zh-tw/sysinternals/downloads/psgetsid

Security Identifier(SID): GetSID of a user,object using Registry, WMIC, PowerShell
https://blogs.msdn.microsoft.com/gaurav/2014/06/03/security-identifiersid-getsid-of-a-userobject-using-registry-wmic-powershell/


wmic useraccount where (name='administrator' and domain='gauravtestMachine') get name,sid

Name           SID
administrator  S-1-5-21-1976753858-2077894621-3616986626-500

MQ client failed to connect qmgr with 2539 error

https://www.ibm.com/support/knowledgecenter/en/SSFKSJ_9.0.0/com.ibm.mq.tro.doc/q045390_.htm

2539 (09EB) (RC2539): MQRC_CHANNEL_CONFIG_ERROR

ExplanationAn MQCONN call was issued from a client to connect to a queue manager but the attempt to establish communication failed. Common causes of this reason code are:(1) The server and client cannot agree on the channel attributes to use.(2) There are errors in one or both of the QM.INI or MQCLIENT.INI configuration files.(3) The server machine does not support the code page used by the client.

注意﹕非常容易忘記(3)也可能造成無法連線, 從error 的文字訊息不易想到