Nginx This machine can access remote inaccessible __ remote access

Phenomenon:

is to see the results on the local machine access. Other machines on the LAN are not accessible.
Indicates that the local service is normal. It is the outside machine that is not able to connect to this machine properly.
Can be resolved from the following aspects: Firewall open, add port
Add a new rule to the/etc/sysconfig/iptables
-A rh-firewall-1-input-m state–state new-m tcp-p tcp–dport 80-j ACCEPT vi/etc/selinux/config files
selinux=disabled See if there are other processes in the machine that also use 80 ports
Netstat-anop | grep 80