問題描述:
httpd是正常開啓的,但是外部主機訪問超時,本地確可以訪問
防火牆問題
檢查防火牆是否開啓
[root@centos7 conf]# systemctl status firewalld.service
● firewalld.service - firewalld - dynamic firewall daemon
Loaded: loaded (/usr/lib/systemd/system/firewalld.service; enabled; vendor preset: enabled)
Active: active (running) since Fri 2020-06-12 00:42:05 CST; 17min ago
Docs: man:firewalld(1)
Main PID: 846 (firewalld)
Tasks: 2
CGroup: /system.slice/firewalld.service
└─846 /usr/bin/python2 -Es /usr/sbin/firewalld --nofork --nopid
Jun 12 00:42:05 centos7 systemd[1]: Starting firewalld - dynamic firewall daemon...
Jun 12 00:42:05 centos7 systemd[1]: Started firewalld - dynamic firewall daemon.
關閉firewalld.service
[root@centos7 conf]# systemctl stop firewalld.service
訪問成功
在Centos6中需要關閉的是iptables