*

[root@node1 ~]# curl http://node1.domain15.example.com

curl: (7) Failed to connect to node1.domain15.example.com port 80: Connection refused

[root@node1 ~]# yum install httpd

[root@node1 ~]# systemctl enable --now httpd

Created symlink /etc/systemd/system/multi-user.target.wants/httpd.service → /usr/lib/systemd/system/httpd.service.

[root@node1 ~]# systemctl start httpd

[root@node1 ~]# systemctl status httpd

Status: "Running, listening on: port 80"

*

[root@node1 ~]# wget http://node1.domain15.example.com

2021-03-23 13:27:28 ERROR 403: Forbidden.

[root@node1 ~]# semanage port -l | grep http

http_port_t tcp 80, 81, 443, 488, 8008, 8009, 8443, 9000

[root@node1 ~]# semanage port -a -t http_port_t -p tcp 82

[root@node1 ~]# semanage port -l | grep http

http_port_t tcp 82, 80, 81, 443, 488, 8008, 8009, 8443, 9000

[root@node1 ~]# firewall-cmd --zone=public --list-all

[root@node1 ~]# firewall-cmd --permanent --zone=public --add-port=82/tcp

[root@node1 ~]# firewall-cmd --reload

[root@node1 ~]# curl http://node1.domain15.example.com

OK

*

root@node1 ~]# wget http://node1.domain15.example.com:82

Connection refused.

[root@node1 ~]# vim /etc/httpd/conf/httpd.conf

Listen 82

[root@node1 ~]# systemctl restart httpd

[root@node1 ~]# wget http://node1.domain15.example.com:82

2021-03-23 13:31:41 ERROR 403: Forbidden.

[root@node1 ~]# curl http://node1.domain15.example.com:82

OK