https://www.tecmint.com/reset-forgotten-root-password-in-centos-7-rhel-7/

https://www.baeldung.com/linux/run-script-on-startup

cd /var/log/sa ls -ltrtotal 63488-rw-r–r– 1 root root 990899 Oct 17 23:53 sar17-rw-r–r– 1 root…

https://www.youtube.com/watch?v=_ZJiEX4rmN4

/dev/VolGroup00/LogVol00 / ext3 defaults 1 1LABEL=/boot /boot ext3 defaults 1 2tmpfs /dev/shm tmpfs defaults 0…

‘https://www.lowendtalk.com/discussion/3037/dnsmasq-not-starting-at-boot cat /etc/rc.local !/bin/sh # This script will be executed after all the other init…

I have expanded my /partition from 23g to 55g – Oracle VM 1> vboxmanage list…

https://www.thegeekstuff.com/2010/09/change-timezone-in-linux/