vulnerabilities
Yum update all yum updateinfo list security all yum –security update
Browsing: Linux
Install httpd and implement self signed certificate
sudo yum install httpd -ysudo apachectl startsudo systemctl enable httpdsudo apachectl configtestsudo bash -c ‘echo…
DNS Configuration
https://www.youtube.com/watch?v=ddRMrfxM3Egcat > /etc/named.conf //// named.conf//// Provided by Red Hat bind package to configure the ISC…
Adding swap
grep SwapTotal /proc/meminfodd if=/dev/zero of=/swapfile bs=2048 count=17408000dd if=/dev/zero of=/swapfile bs=2048 count=8704000df -hchmod 600 /swapfilesudo mkswap…
Oracle VM on OEL 8
https://www.tecmint.com/install-virtualbox-on-redhat-centos-fedora/
root password change
https://www.tecmint.com/reset-forgotten-root-password-in-centos-7-rhel-7/
script on linux reboot
https://www.baeldung.com/linux/run-script-on-startup
SAR report for past 1 month
cd /var/log/sa ls -ltrtotal 63488-rw-r–r– 1 root root 990899 Oct 17 23:53 sar17-rw-r–r– 1 root…
How to use screen
https://www.youtube.com/watch?v=_ZJiEX4rmN4
/etc/fstab entries
/dev/VolGroup00/LogVol00 / ext3 defaults 1 1LABEL=/boot /boot ext3 defaults 1 2tmpfs /dev/shm tmpfs defaults 0…