查看端口是否对外开放
/etc/init.d/iptables status
# /etc/init.d/iptables status
表格:filter
Chain INPUT (policy ACCEPT)
num target prot opt source destination
1 ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:3306
2 ACCEPT all -- 0.0.0.0/0 0.0.0.0/0
3 ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 state RELATED,ESTABLISHED
4 ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:22
5 ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:80
6 ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:443
7 DROP tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:3306
8 ACCEPT icmp -- 0.0.0.0/0 0.0.0.0/0 icmp type 8
9 ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 state RELATED,ESTABLISHED
10 ACCEPT icmp -- 0.0.0.0/0 0.0.0.0/0
11 ACCEPT all -- 0.0.0.0/0 0.0.0.0/0
12 ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:22
13 REJECT all -- 0.0.0.0/0 0.0.0.0/0 reject-with icmp-host-prohibited
Chain FORWARD (policy ACCEPT)
num target prot opt source destination
1 REJECT all -- 0.0.0.0/0 0.0.0.0/0 reject-with icmp-host-prohibited
Chain OUTPUT (policy ACCEPT)
num target prot opt source destination
You have new mail in /var/spool/mail/root
增加新的端口【永久】
vim /etc/sysconfig/iptables
增加
-A INPUT -p tcp -m tcp --dport 8888 -j ACCEPT
# Generated by iptables-save v1.4.7 on Wed Oct 10 09:24:47 2018
*filter
:INPUT ACCEPT [0:0]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [774:133261]
-A INPUT -p tcp -m tcp --dport 3306 -j ACCEPT
-A INPUT -i lo -j ACCEPT
-A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
-A INPUT -p tcp -m tcp --dport 22 -j ACCEPT
-A INPUT -p tcp -m tcp --dport 8888 -j ACCEPT
-A INPUT -p tcp -m tcp --dport 80 -j ACCEPT
-A INPUT -p tcp -m tcp --dport 443 -j ACCEPT
-A INPUT -p tcp -m tcp --dport 3306 -j DROP
-A INPUT -p icmp -m icmp --icmp-type 8 -j ACCEPT
-A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
-A INPUT -p icmp -j ACCEPT
-A INPUT -i lo -j ACCEPT
-A INPUT -p tcp -m state --state NEW -m tcp --dport 22 -j ACCEPT
-A INPUT -j REJECT --reject-with icmp-host-prohibited
-A FORWARD -j REJECT --reject-with icmp-host-prohibited
COMMIT
# Completed on Wed Oct 10 09:24:47 2018
重启后,即可看到开启情况。
/etc/init.d/iptables restart
# /etc/init.d/iptables status | grep 8888
5 ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:8888
You have new mail in /var/spool/mail/root
原文地址:https://www.cnblogs.com/jiqing9006/p/9783125.html
时间: 2024-11-04 14:52:55