No.1:
sestatus

No.1:
vi /etc/selinux/config

No.1:
sestatus

No.1:
vi /etc/ssh/sshd_config

No.1:
firewall-cmd --permanent --zone=public --add-port=1107/tcp
1107 根據要登入的端口而定

yum install firewalld

systemctl start firewalld

No.1:
firewall-cmd --reload

No.1:
firewall-cmd --permanent --query-port=1107/tcp
1107 根據要登入的端口而定

No.1:
systemctl restart sshd.service