修改ssh埠後無法連線ssh了？

[[email protected] ~]$ vi /etc/ssh/sshd_config

[[email protected] 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  //以前這個前面是有 # 號的，而且預設是 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
 

[[email protected] richard]# /etc/rc.d/init.d/sshd restart
停止 sshd：                                                [確定]
正在啟動 sshd：                                            [確定]

找了好久才發現原來是iptables的問題，解決方法如下：

修改/etc/sysconfig/iptables檔案，增加如下一行：

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

service iptables restart