centos - CentOS 开放端口问题

Question

我正在使用 CentOS 6 机器。我尝试遵循以下指南:

How to open port in centOS

http://ask.xmodulo.com/open-port-firewall-centos-rhel.html

如果我运行 nmap ipofmachine在目标机器上我有这个奇怪的结果。

Host is up (0.0079s latency).
Not shown: 996 filtered ports
PORT     STATE  SERVICE
22/tcp   open   ssh
80/tcp   closed http
443/tcp  closed https
8080/tcp closed http-proxy

不过，当我运行 sudo iptables -L我有以下输出:

Chain INPUT (policy ACCEPT)
target     prot opt source               destination         
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:webcache 
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:webcache 
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:http 
ACCEPT     all  --  anywhere             anywhere            state RELATED,ESTABLISHED 
ACCEPT     icmp --  anywhere             anywhere            
ACCEPT     all  --  anywhere             anywhere            
ACCEPT     tcp  --  anywhere             anywhere            state NEW tcp dpt:ssh 
ACCEPT     tcp  --  anywhere             anywhere            state NEW tcp dpt:http 
ACCEPT     tcp  --  anywhere             anywhere            state NEW tcp dpt:https 
ACCEPT     tcp  --  anywhere             anywhere            state NEW tcp dpt:webcache 
REJECT     all  --  anywhere             anywhere            reject-with icmp-host-prohibited 

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

Chain OUTPUT (policy ACCEPT)
target     prot opt source               destination         

我错过了什么吗？如果您需要更多信息，请告诉我(我正在尝试打开端口 8080)。

Answer 1

为了允许特定端口上的连接，您必须配置 CentoOS 防火墙:

> sudo firewall-cmd --permanent --zone=public --add-port=8080/tcp
> sudo firewall-cmd --reload

您需要使用 sudo

配置权限提升