Firewall for Linux
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Firewall
CentOS 7
systemctl stop firewalld systemctl disable firewalld
CentOS 6
system-config-firewall-tui
If the package is not installed you can install it by using the following yum command.
yum install system-config-securitylevel-tui
selinux
To disable selinux on CentOS 6 and 7
vi /etc/selinux/config
and set SELINUX
SELINUX=disabled
or
sed -i s/SELINUX=enforcing/SELINUX=disabled/g /etc/selinux/config
