iptables 命令添加非标准 SSL 端口 444

iptables 命令添加非标准 SSL 端口 444

下面是我的 IP 列表输出。应发出哪些 IP 表命令来启用 tcp 端口 444 的添加,我将其用于非标准 SSL。我尝试了“iptables -A INPUT -p tcp --dport 444 -j ACCEPT”,而不是“service iptables save”,但不起作用?!?1?! 在我的 httpd.conf 中,我正在监听端口 444。

   Chain INPUT (policy ACCEPT)
target     prot opt source               destination         
ACCEPT     all  --  anywhere             anywhere            
REJECT     all  --  anywhere             127.0.0.0/8         reject-with icmp-port-unreachable 
ACCEPT     all  --  anywhere             anywhere            state RELATED,ESTABLISHED 
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:http 
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:https 
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:ssh 
ACCEPT     tcp  --  anywhere             anywhere            state NEW tcp dpt:30000 
ACCEPT     icmp --  anywhere             anywhere            icmp echo-request 
REJECT     all  --  anywhere             anywhere            reject-with icmp-port-unreachable 
SSH_CHECK  tcp  --  anywhere             anywhere            tcp dpt:ssh state NEW 
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:ftp 
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:snpp 

Chain FORWARD (policy ACCEPT)
target     prot opt source               destination         
REJECT     all  --  anywhere             anywhere            reject-with icmp-port-unreachable 

Chain OUTPUT (policy ACCEPT)
target     prot opt source               destination         
ACCEPT     all  --  anywhere             anywhere            
ACCEPT     tcp  --  anywhere             anywhere            tcp spt:ftp-data 

Chain RH-Firewall-1-INPUT (0 references)
target     prot opt source               destination         

Chain SSH_CHECK (1 references)
target     prot opt source               destination         
           all  --  anywhere             anywhere            recent: SET name: SSH side: source 
DROP       all  --  anywhere             anywhere            recent: UPDATE seconds: 180 hit_count: 3 name: SSH side: source 

答案1

在您当前的规则集中,使用 -A 添加的规则将不起作用,因为您有一个 REJECT 规则。使用 -I 而不是 -A 作为规则,该规则首先插入。或者“-I INPUT 2”更好,因为它将规则插入第二个位置。出于性能原因,ESBLISHED,RELATED 应该放在第一位。

答案2

snpp 这个名字不是问题。您的方法应该有效。如果您将 iptables 配置为允许目标端口 444,并将 httpd 配置为侦听 444,则您的客户端应该能够通过端口 444 访问 https,就像 一样https://your.ip.addr.ess:444/

但是,如果您希望客户端使用默认端口访问 https URL https://your.ip.addr.ess/,则需要添加如下 NAT 规则:

iptables -A PREROUTING -p tcp --dport 443 -j REDIRECT --to-ports 444

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