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You can create your own local YUM/DNF repository on your local server. Here's how to do that with Apache.

Software repositories are usually used over the internet and can be accessed by multiple users worldwide. However, you can create your own local repository on your local server and use it as a single user, or allow access to other machines on your LAN using a web server or FTP.

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The advantage of creating a local repository is that you don’t require an internet connection to install software packages or updates. Another benefit is, of course, the download speed. Since the packages are downloaded via a local network, the updates perform quickly.

Yellowdog Updater, Modified (YUM) or Dandified YUM (DNF) are software package managers that manage RPM-based Linux distributions. With YUM or DNF, you can install and update groups of computers without having to manually update each RPM.

In this article, I will explain how to set up a local Apache-based YUM/DNF repository on Red Hat Enterprise Linux (RHEL) 8, using the installation DVD or ISO file. I will also show you how to find and install software packages on client RHEL 8 machines using the Apache webserver. We'll cover the same process for NGINX and FTP in future articles.

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Prerequisites

You will need to set up two Red Hat Enterprise Linux 8 systems: one local repo server and one client machine that will use the local repository from the local server. The result will look something like this:

Local Repository Server: RHEL 8 [10.0.0.10]
Local Client Machine: RHEL 8 [10.0.0.11]
RHEL 8 installation DVD
Apache webserver

Create your repository

Creating your repository involves a number of steps. Let’s walk through them.

Step 1: Mount the Red Hat Enterprise Linux 8 media

First, mount the local media (the DVD, USB stick, etc.) that contains Red Hat Enterprise Linux 8. Use the installation DVD:

Or mount the ISO image:

Step 2: Create a local YUM repository from the mounted media

Move the existing repo files located in /etc/yum.repos.d:

From this point, it is better if we continue as the root user. Switch to superuser with su command.

Next, create a directory for the repo:

Use this directory with Nginx or Apache for serving files over the LAN.

Create the new local repository’s configuration file, local-dvdrom.repo, under the /etc/yum.repos.d directory:

Step 3: Copy media content to the local directory

Copy the ISO files locally under the /local_repo directory:

Wait until the files are copied, then verify that the files were copied using:

Step 4: Configure the local YUM/DNF repository

Edit the repo configuration file we created earlier:

Paste this configuration into it:

Install the required packages for creating, configuring and managing the local repository:

Finally, run the createrepo command:

Step 5: Test and verify your local repository

In this step, you clean up the temporary repository files and verify that the local repository is enabled:

Verify that the local repository was created:

You can see that the local repository generated files, so everything is ok at this point.

If you read the above command output carefully, you'll see the warning message, This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register. If you want to suppress or prevent this message while running the dnf or yum command then edit the file /etc/yum/pluginconf.d/subscription-manager.conf :

and change the parameter enabled=1 to enabled=0:

Set up your Apache web server

As I mentioned before, this article covers setting up your own repository using the Apache web server. Let’s walk through installing and configuring Apache to serve your repo.

Install Apache

To install the httpd (Apache) package using YUM:

Configure Apache to auto-start at boot

Once Apache is installed, start and enable the httpd service to auto-start at boot and verify its status using the following commands:

Configure the firewall

Next, configure the firewall so that Apache can be reached:

Verify that Apache is up and running

You can now verify that your Apache server is up and running by going to the localhost URL on your web browser. The default Apache web page http://localhost/ should be displayed.

Configure Apache

To configure Apache, open the configuration file:

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When opened, find the DocumentRoot line and change it to:

Then change the /var/www/http directory section:

Test and clean up

Now, start the Apache service again and test its status:

Everything is good. Remove the welcome page so you can serve the repo files:

Now, test httpd and restart Apache:

Change permissions and set SELinux

Generate Gpg Key For Local Redhat Repo Version

Continue the security configuration by changing the permissions on the local_repo directory and configuring SELinux. To change the permissions:

Then, check if SELinux is enforcing:

If it is Enforcing, type:

If SELinux is not set to Enforcing, then the files will not serve from the repo.

And make the change permanent by editing the /etc/sysconfig/selinux file and set the following value:

SELINUX=enforcing

Set up the client

Now, to configure the Red Hat Enterprise Linux 8 client machine’s repository.

Add the repo

On the client machine, add the local repos from the server to the client’s YUM configuration:

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Then paste the following configuration (be sure to change the server IP address according to your setup):

Test the repo

Test the LocalServerRepo by installing a package. For example:

That is great! Everything works as expected. You now have an Apache-based local YUM/DNF repository in Red Hat Enterprise Linux 8, using the installation DVD or ISO file.

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