How to configure firewall to open port 80 in Linux

Installed nginx+mysql+php in the virtual machine, the desktop in the virtual machine can be accessed,

1. netstat -ntlp | grep 80
2. lsof -i:80

There is also corresponding port information.
But outside the virtual machine can not be accessed through ip access.

1. iptables -L -n

Check the firewall settings and find that port 80 is not open.

Solution:
First, close the firewall

1. service iptables stop

Not recommended

Second, open this port on the firewall.

1. vim /etc/sysconfig/iptables
2. -A INPUT -m state --state NEW -m tcp -p tcp --dport 80-j ACCEPT

restart iptables

1. service iptables restart

Another: open a range of ports 22 to 80

1. -A INPUT -m state --state NEW -m tcp -p tcp --dport 22:80-j ACCEPT

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