#!/bin/bash #liu_dong sed -i "s/#Port 22/Port 31961/g" /etc/ssh/sshd_config sed -i "s/#UseDNS yes/UseDNS no/g" /etc/ssh/sshd_config sed -i "s/GSSAPIAuthentication yes/GSSAPIAuthentication no/g" /etc/ssh/sshd_config sed -i "s/#PermitRootLogin yes/PermitRootLogin no/g" /etc/ssh/sshd_config systemctl restart sshd.service #install semanage yum -y install policycoreutils-python semanage port -a -t ssh_port_t -p tcp 31961 systemctl restart sshd.service #firewall firewall-cmd --permanent --zone=public --add-port=80/tcp firewall-cmd --permanent --zone=public --add-port=31961/tcp firewall-cmd --permanent --zone=trusted --change-interface=enp7s0f1 firewall-cmd --reload