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Redhat - Clean Up

Disable selinux

Edit /etc/selinux/config.

Change SELINUX=enforcing to SELINUX=disabled:

# This file controls the state of SELinux on the system.
# SELINUX= can take one of these three values:
# enforcing - SELinux security policy is enforced.
# permissive - SELinux prints warnings instead of enforcing.
# disabled - No SELinux policy is loaded.
# SELINUXTYPE= can take one of these two values:
# targeted - Targeted processes are protected,
# mls - Multi Level Security protection.

Turn off Firewall

systemctl stop firewalld
systemctl disable firewalld
yum -y install net-tools

NOTE: On some older versions the following might be needed:

service iptables save 
service iptables stop 
chkconfig iptables off

Clean Up Script

echo "Clean Up"
yum clean all > /etc/machine-id
rm -f /etc/ssh/ssh_host_rm -rf /root/.ssh/
rm -f /root/anaconda-ks.cfg
rm -f /root/.bash_history
rm -f /var/log/boot.log
rm -f /var/log/cron
rm -f /var/log/dmesg
rm -f /var/log/grubby
rm -f /var/log/lastlog
rm -f /var/log/maillog
rm -f /var/log/messages
rm -f /var/log/secure
rm -f /var/log/spooler
rm -f /var/log/tallylog
rm -f /var/log/wpa_supplicant.log
rm -f /var/log/wtmp
rm -f /var/log/yum.log
rm -f /var/log/audit/audit.log
rm -f /var/log/tuned/tuned.logroot

Make the Script Executable

cd /usr/src
chmod +x

Run the Clean Up Script


Clear History

cat /dev/null > ~/.bash_history && history -c && exit

Generalize the System Config

This prevents conflicts when using this setup as a template when creating different virtual machines deployed from the template.

redhat/clean_up.txt · Last modified: 2021/07/23 09:48 by peter

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