Linux 基础与应用教程0010 (ssh2)

1.改ssh2端口

1. ssh 192.168.130.28

2.vi /etc/ssh/sshd_config

3.service sshd restart

4.service iptables stop

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2.

 

秘钥加密

 

 

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1. iptables -F

2.iptables -X

3.iptables -P INOUT DROP

4.iptables  -P FORWARD DROP 

5.iptables  -P OUTPUT ACCEPT

6.iptables  -A INPUT -p tcp --dport 22 -j ACCEPT

7.iptables  -A INPUT -p tcp --dport333 -j ACCEPT

查看详情 iptables -L -n

8.service iptables save

9.service iptables restart

删除

10.iptables -L --line-numbers -n

11.iptables -D INPUT 2

12.service iptables save

13.service iptables restart

 

 

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