本人使用的一般是centos
下面是centos6版本的操作
1：修改防火牆
[root@localhost nexus]# 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
//在這裡增加要允許訪問的埠即可
-a input -m state --state new -m tcp -p tcp --dport 8081 -j accept
-a input -j reject --reject-with icmp-host-prohibited
-a forward -j reject --reject-with icmp-host-prohibited
commit
//重啟防火牆
service iptables restart
//開啟防火牆
service iptables start
//關閉防火牆
service iptables stop
//啟動
chkconfig iptables on
//關閉
chkconfig iptables off
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