vos2009 安装后，打开了相应的端口，仍然单通，但关了防火墙可以双通

软若石

于 2013-03-16 13:54:53 发布

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分类专栏：并发

本文链接：https://blog.youkuaiyun.com/ruanruoshi/article/details/8680945

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你把服务器要开端口转发
vi /etc/sysctl.conf
net.ipv4.ip_forward = 0
把0改为1 注意=号前后空格
sysctl -p
让配置生效

或修改iptables配置文件

# Firewall configuration written by system-config-securitylevel
# Manual customization of this file is not recommended.
*filter
:INPUT ACCEPT [0:0]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [0:0]
:RH-Firewall-1-INPUT - [0:0]
-A INPUT -j RH-Firewall-1-INPUT
-A FORWARD -j RH-Firewall-1-INPUT
-A RH-Firewall-1-INPUT -i lo -j ACCEPT
-A RH-Firewall-1-INPUT -p icmp --icmp-type any -j ACCEPT
-A RH-Firewall-1-INPUT -p 50 -j ACCEPT
-A RH-Firewall-1-INPUT -p 51 -j ACCEPT
-A RH-Firewall-1-INPUT -p udp --dport 5353 -d 224.0.0.251 -j ACCEPT
-A RH-Firewall-1-INPUT -p udp -m udp --dport 631 -j ACCEPT
-A RH-Firewall-1-INPUT -p tcp -m tcp --dport 631 -j ACCEPT