HOWTO: Solve / investigate high Linux system load
karlo On support websites I am noticing there is a lot of confusion about system load. This post is my attempt to make a short guide to understanding (and fixing) high…
SSH: Don’t display motd and banner
Stop display of motd on login: # On the machine of which you don't want to see the banner $ touch ~/.hushlogin Stop display of banner on ssh login: #…
TMUX: Auto start on shell start
I always want to use tmux. So I put the following in my bashrc (just before the functions). # If not running interactively, do not do anything # If you…
Auditd find syslog code
Don't know what a syscall code means in your audit output? Follow these steps to find out: Find the source for your kernel: https://www.kernel.org/pub/linux/kernel/v2.6/ Extract the file Go to //arch//include/asm…
Monitor ntp without ntpq
I was working on a server which did not have ntpq installed, so I couldn't do ntpq -p. Simple solution is to stop the ntp service and run ntpd -d…
Can not login to server: “Server is going down” on ssh login
I was not able to log into an old server. Directly after connecting over ssh, I got a "Server is going down" message. Solution is to reboot into safe mode,…
Reposync errors: empty rpm’s
I recently got empty rpm's back from Red Hat. The system was registered properly. Problem was thet for reposync, I used a different .repo file. This file still had the…