Apache httpd启动失败
[root@controller ~]# systemctl start httpd
Job for httpd.service failed because the control process exited with error code. See "systemctl status httpd.service" and "journalctl -xe" for details.
报错原因：
[root@controller ~]# journalctl -xe
--
-- Unit httpd.service has failed.
--
-- The result is failed.
10月 23 14:04:35 controller systemd[1]: Unit httpd.service entered failed state.
10月 23 14:04:35 controller systemd[1]: httpd.service failed.
10月 23 14:04:35 controller polkitd[691]: Unregistered Authentication Agent for unix-process:2499:56227 (system bus na
10月 23 14:07:06 controller firewalld[721]: WARNING: AllowZoneDrifting is enabled. This is considered an insecure conf
10月 23 14:07:21 controller polkitd[691]: Registered Authentication Agent for unix-process:2632:72868 (system bus name
10月 23 14:07:21 controller systemd[1]: Starting The Apache HTTP Server...
-- Subject: Unit httpd.service has begun start-up
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
--
-- Unit httpd.service has begun starting up.
10月 23 14:07:21 controller httpd[2638]: (13)Permission denied: AH00072: make_sock: could not bind to address [::]:5000
10月 23 14:07:21 controller httpd[2638]: (13)Permission denied: AH00072: make_sock: could not bind to address 0.0.0.0:5000
10月 23 14:07:21 controller httpd[2638]: no listening sockets available, shutting down
10月 23 14:07:21 controller httpd[2638]: AH00015: Unable to open logs
10月 23 14:07:21 controller systemd[1]: httpd.service: main process exited, code=exited, status=1/FAILURE
10月 23 14:07:21 controller systemd[1]: Failed to start The Apache HTTP Server.
看到有这样一行错误信息Permission denied: AH00072: make_sock: could not bind to address [::]:5000
百度查了下许多人说是SELinux的问题，看了一下http果然没有放通5000端口
[root@controller ~]# semanage port -l | grep -w http_port_t
http_port_t tcp 8000, 80, 81, 443, 488, 8008, 8009, 8443, 9000
尝试添加端口，但是报错了
[root@controller ~]# semanage port -a -t http_port_t -p tcp 5000
ValueError: 已定义端口 tcp/5000
再查一下，原来5000端口一定定义了，只不过不是http
[root@controller ~]# semanage port -l | grep 5000
cluster_port_t tcp 5149, 40040, 50006-50008
cluster_port_t udp 5149, 50006-50008
commplex_main_port_t tcp 5000
commplex_main_port_t udp 5000
hplip_port_t tcp 1782, 2207, 2208, 8290, 8292, 9100, 9101, 9102, 9220, 9221, 9222, 9280, 9281, 9282, 9290, 9291, 50000, 50002\
网上很多方法都是关闭selinux，本着安全原则不想关。网上还有说是openstack-selinux包没安装成功的，检查了也不是这个问题
[root@controller ~]# rpm -qa | grep openstack-selinux
openstack-selinux-0.8.26-1.el7.noarch
最终方法：修改selinux端口
# semanage port -m -t http_port_t -p tcp 5000
最后成功启动http服务
[root@controller ~]# systemctl start httpd
[root@controller ~]# systemctl status httpd
● httpd.service - The Apache HTTP Server
Loaded: loaded (/usr/lib/systemd/system/httpd.service; enabled; vendor preset: disabled)
Active: active (running) since 日 2022-10-23 14:18:32 CST; 6s ago
Docs: man:httpd(8)
man:apachectl(8)
Main PID: 3121 (httpd)
Status: "Processing requests..."
CGroup: /system.slice/httpd.service
├─3121 /usr/sbin/httpd -DFOREGROUND
├─3122 (wsgi:keystone- -DFOREGROUND
├─3123 (wsgi:keystone- -DFOREGROUND
├─3124 (wsgi:keystone- -DFOREGROUND
├─3125 (wsgi:keystone- -DFOREGROUND
├─3126 (wsgi:keystone- -DFOREGROUND
├─3127 /usr/sbin/httpd -DFOREGROUND
├─3128 /usr/sbin/httpd -DFOREGROUND
├─3129 /usr/sbin/httpd -DFOREGROUND
├─3130 /usr/sbin/httpd -DFOREGROUND
└─3131 /usr/sbin/httpd -DFOREGROUND
10月 23 14:18:32 controller systemd[1]: Starting The Apache HTTP Server...
10月 23 14:18:32 controller systemd[1]: Started The Apache HTTP Server.
