How to manage firewall on Centos7 with firewall-cmd
Centos7 is a great server OS. There are bunch of other sites, which describe how to manage firewall rules, here I am just gathering those, […]
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How to find biggest subfolder
This little command will give you list of folders, sorted by their size: du -sk * | sort -nr | more
Continue reading »How to flush RAM on Linux / Centos
I personally suggest using first option, other are more and more “hardcore”. Also I would not suggest doing this under high CPU load or high […]
Continue reading »Fix corrupt RPM database on CentOS
Sometimes, e.g. when your partition gets full during update or other server hangs during update your RPM database might get corrupted and updates with yum […]
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