1:vi /etc/ssh/sshd_config ssh的配置文件
2:找到#Port 22 ssh的端口,吧#去掉,改成其它端口:比如35678
3:保存后service sshd restart
停止 sshd： [确定]
正在启动 sshd： [确定]
4:再修改iptables vi /etc/sysconfig/iptables
# Firewall configuration written by system-config-firewall
# Manual customization of this file is not recommended.
*filter
:INPUT ACCEPT [0:0]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [0:0]
-A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
-A INPUT -p icmp -j ACCEPT
-A INPUT -i lo -j ACCEPT
-A INPUT -m state --state NEW -m tcp -p tcp --dport 22 -j ACCEPT
-A INPUT -j REJECT --reject-with icmp-host-prohibited
-A FORWARD -j REJECT --reject-with icmp-host-prohibited
5:复制一行,改一下端口
-A INPUT -m state --state NEW -m tcp -p tcp --dport 22 -j ACCEPT
-A INPUT -m state --state NEW -m tcp -p tcp --dport 35678 -j ACCEPT
6:保存后 service iptables restart 重启一下
7:ok
