Alex Scoble's IT Notes - An Information Technology Blog

Using Ansible to manage sudoers in Linux

This is an excellent blog post on how to use Ansible to config the /etc/sudoers file on Linux systems.

https://raymii.org/s/tutorials/Ansible_-_Sudo_Safety_and_Sanity_Checks.html

No separate /var volume when booting Red Hat from iscsi

Hope you never have to run in to this problem, but if you ever have to install Red Hat using an iSCSI boot disk do not set up /var as a separate partition.

Doing so will seriously break the server because iSCSI state data is held in /var/lib/iscsi and Red Hat cannot access this data if /var is a separate lvm volume as it needs that data in order to mount /var.

This applies to all versions of Red Hat.