RockyLinux9 改變sshd port

檢查一下

1.ss -tulpn | grep sshd

[以上為改完的圖 port原本是22]

2.echo "Port 65477" >> /etc/ssh/sshd_config.d/02-changeport.conf

 

3.dnf install -y policycoreutils-python-utils

 

4.semanage port -a -t ssh_port_t -p tcp 65477

 

5.寫入filrewalld-cmd  這裏我還是用回去iptables

# firewall-cmd --permanent --add-port=65477/tcp

success

# firewall-cmd --reload success