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How to open specified port in linux
- 王林Original
- 2019-12-25 16:00:0620723browse
Method 1: Command line method
1. Open port command:
/sbin/iptables -I INPUT -p tcp --dport 8080 -j` ACCEPT
2. Save:
/etc/rc.d/init.d/iptables save
3. Restart the service:
/etc/init.d/iptables restart
4. Check whether the port is open:
/sbin/iptables -L -n
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Method 2: Direct editing/etc/sysconfig/iptablesFile
1. Edit the /etc/sysconfig/iptables file
vi /etc/sysconfig/iptables
Add the following content and save:
-A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp --dport 8080 -j ACCEPT
2. Restart the service:
/etc/init.d/iptables restart
3. Check whether the port is open
/sbin/iptables -L -n
To check whether there is a process guarding the port, use the following command, grep the corresponding port, such as 80 is the port number
netstat -nalp|grep 80
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