yum notes

Some notes I kept when I was learning how to use yum. Installing a package that has been excluded The file /etc/yum.conf may contain an 'excludes' line that will disallow updates of any of packages listed. To bypass this, you can comment out those packages in /etc/yum. …

iptables notes

Here are some notes I keep for myself when I play with iptables (I don't use it often enough to remember how it works): List all rules # iptables -L See the rules and their numbers # service iptables status Delete a rule # iptables -D CHAIN NUM E.g.: # iptables -D INPUT …