What logs to provide to IBM for any AIX crash?
Today we will look at one of the basic command of AIX which we should know to collect the support logs from the server. What logs we need to collect...
Tag: log
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Solved: /var/adm/messages and auth.log file not rotating in Linux.
Today we will see an interesting issue where the logs are collected in /var/adm/messages as per rsyslog.conf. However the log file size in increasing infinitely and is not rotating. It...
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How to view last users’ login history in Linux ?
Today we will see how to view user login history in linux. For this, we will use “last” command which gives login history for any specific username mentioned. If we...
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How to view, setup and analyze sshd(Secure shell daemon) logs in redhat or centos linux ?
In this article, we will look how to view, analyze and setup SSHD logs on our Redhat or Centos Linux system. 1. Viewing SSHD Log file. ## For Ubuntu [root@nglinux...
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Why journalctl logs disappear after reboot and how to make it permanent ?
By default, Journald logs gets stored in /run/log/journal directory and disappear once the system gets rebooted. I. Default Journald configuration [root@localhost ~]# date Wed Mar 13 10:50:29 PDT 2019 [root@localhost...
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PAM (Pluggable Authentication module) Usage and Configuration in Linux : All about PAM to know.
1. PAM Introduction Pluggable authentication module (PAM) provides a mechanism to incorporate multiple low-level authentication schemes into a high-level application programming interface (API). Sun Microsystems introduced the concept of PAM...