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Configuring and managing high availability clusters
4.2. Configuring an Apache HTTP Server

4.2. Configuring an Apache HTTP Server

Configure an Apache HTTP Server with the following procedure.

Procedure

Ensure that the Apache HTTP Server is installed on each node in the cluster. You also need the wget tool installed on the cluster to be able to check the status of the Apache HTTP Server.
On each node, execute the following command.
```
# dnf install -y httpd wget
```
If you are running the firewalld daemon, on each node in the cluster enable the ports that are required by the Red Hat High Availability Add-On and enable the ports you will require for running httpd. This example enables the httpd ports for public access, but the specific ports to enable for httpd may vary for production use.
```
# firewall-cmd --permanent --add-service=http
# firewall-cmd --permanent --zone=public --add-service=http
# firewall-cmd --reload
```
In order for the Apache resource agent to get the status of Apache, on each node in the cluster create the following addition to the existing configuration to enable the status server URL.
```
# cat <<-END > /etc/httpd/conf.d/status.conf
<Location /server-status>
    SetHandler server-status
    Require local
</Location>
END
```
Create a web page for Apache to serve up.
On one node in the cluster, ensure that the logical volume you created in Configuring an LVM volume with an XFS file system in a Pacemaker cluster is activated, mount the file system that you created on that logical volume, create the file index.html on that file system, and then unmount the file system.
```
# lvchange -ay my_vg/my_lv
# mount /dev/my_vg/my_lv /var/www/
# mkdir /var/www/html
# mkdir /var/www/cgi-bin
# mkdir /var/www/error
# restorecon -R /var/www
# cat <<-END >/var/www/html/index.html
<html>
<body>Hello</body>
</html>
END
# umount /var/www
```

4.2. Configuring an Apache HTTP Server

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