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修改ssh端口后无法连接ssh了?

2013-10-12 18:22 2548人阅读 评论(0) 收藏 举报

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修改ssh端口后无法连接ssh了？

[richard@localhost ~]$ vi /etc/ssh/sshd_config

 

[root@localhost richard]# vi /etc/ssh/sshd_config

#       $OpenBSD: sshd_config,v 1.80 2008/07/02 02:24:18 djm Exp $

# This is the sshd server system-wide configuration file.  See
# sshd_config(5) for more information.

# This sshd was compiled with PATH=/usr/local/bin:/bin:/usr/bin

# The strategy used for options in the default sshd_config shipped with
# OpenSSH is to specify options with their default value where
# possible, but leave them commented.  Uncommented options change a
# default value.

Port 20010  //以前这个前面是有 # 号的，而且默认是 22 ，修改一下就ok了
#AddressFamily any
#ListenAddress 0.0.0.0
#ListenAddress ::

# Disable legacy (protocol version 1) support in the server for new
# installations. In future the default will change to require explicit
# activation of protocol 1
Protocol 2

重起ssh服务，修改端口才生效

[root@localhost richard]# /etc/rc.d/init.d/sshd restart
停止 sshd：                                                [确定]
正在启动 sshd：                                            [确定]

然后使用xshell连接发现连接不上！！！

找了好久才发现原来是iptables的问题，解决方法如下：

修改/etc/sysconfig/iptables文件，增加如下一行：

-A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp --dport 8080 -j ACCEPT

重启        iptables

service iptables restart

再连接发现好了！