我正在使用Centos 7，并尝试打开端口80和443 .
按照centos 7 - open firewall port，RHEL7: How to get started with Firewalld，How to open http port 80 on Redhat 7 Linux using firewall-cmd和其他一些人的指示，我有以下内容：
[ricardo@m42srv02 ~]$ firewall-cmd --list-all
public (default, active)
interfaces: enp0s3
sources: 0.0.0.0/0
services: dhcpv6-client http https ssh
ports:
masquerade: no
forward-ports:
icmp-blocks:
rich rules:
[ricardo@m42srv02 ~]$
即使我添加端口80 / tcp和443 / tcp而不是添加服务，结果也是如此，来自其他机器：
[root@m42srv01 ~]# nmap -T4 -sV -p 1-444 192.168.1.12
Starting Nmap 5.51 ( http://nmap.org ) at 2015-06-04 04:33 CEST
Nmap scan report for 192.168.1.12
Host is up (0.017s latency).
Not shown: 441 filtered ports
PORT STATE SERVICE VERSION
22/tcp open ssh OpenSSH 6.6.1 (protocol 2.0)
80/tcp closed http
443/tcp closed https
MAC Address: 08:00:27:C1:8D:25 (Cadmus Computer Systems)
Service detection performed. Please report any incorrect results at http://nmap.org/submit/ .
Nmap done: 1 IP address (1 host up) scanned in 4.28 seconds
[root@m42srv01 ~]#
我尝试添加服务和端口，使用--permanent选项，有和没有源，每次更改后总是重新加载防火墙，甚至有时重启firewalld服务，但这些端口总是关闭 .
Iptables被禁用 .
1 回答
试试：
firewall-cmd --zone=public --add-port=80/tcp --permanent在CentOS Linux 7.1.1503版（Core）上为我工作