vi /etc/sysconfig/iptables
-A INPUT -m state –state NEW -m tcp -p tcp –dport 80 -j ACCEPT(同意80端口通过防火墙)
-A INPUT -m state –state NEW -m tcp -p tcp –dport 3306 -j ACCEPT(同意3306端口通过防火墙)
特别提示:
非常多网友把这两条规则加入到防火墙配置的最后一行。导致防火墙启动失败,正确的应该是加入到默认的22port这条规则的以下
加入好之后防火墙规则例如以下所看到的:
######################################
# 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 -m state –state NEW -m tcp -p tcp –dport 80 -j ACCEPT
-A INPUT -m state –state NEW -m tcp -p tcp –dport 3306 -j ACCEPT
-A INPUT -j REJECT –reject-with icmp-host-prohibited
-A FORWARD -j REJECT –reject-with icmp-host-prohibited
COMMIT
#####################################
/etc/init.d/iptables restart
#最后重新启动防火墙使配置生效
本文主要是记录一下可能遇到的问题,因为本人就遇到了该问题,把新加入的规则放到了配置文件的最后一行, 导致mysql无法远程訪问。以此笔记。