Serving Disk Usage Graphs with Bash and PHP
Lately I was asked to develop and integrate a realtime server disk usage graph to the dashboard of our monitoring application (OpenNMS). The bar graph color should also change when disk usage exceeds a defined percentage threshold.
Zimbra stopped working, stuck on ldap service start
One of our Zimbra Collaboration Suite deployments stopped working all in a sudden: unable to login with given credentials. My first thought: “oh my, they hacked us!”.
Running new linux kernel without rebooting [RHEL/CentOS]
You have that server you can’t reboot but need to patch the kernel NOW (eg. #kernel flaw found#).. well, you can try this out.