# 8.1 Repositories

In large companies, the use of online software repositories is discouraged. This makes it a lot harder to install and update software. The solution for this problem is that a company will have and maintain its own repositories.

So knowing how to add repositories manually is a necessity. We can manually add repositories by adding a file to the folder ```/etc/yum.repos.d/```. The file **must** end with ```.repo```.

Below an example:
```bash
/etc/yum.repos.d/example.repo
```

The content of the file must have the following:
|Parameter|Input|Use|
|:-|:-|:-|
|[repository]|none|Repository ID|
|name=|repository_name|Where repository_name is a string describing the repository|
|baseurl=|repository_url|The location by IP or Name of the repo|
|gpgcheck=|0|A binairy wether to use a GPG Key Check|
|enabled=|1|A Binairy wether the repo is enabled or not|

Where repository_url is an URL to the repository with the repository data:
- If the repository is available over HTTP, use: http://path/to/repo
- If the repository is available over FTP, use: ftp://path/to/repo
- If the repository is local to the machine, use: file:///path/to/local/repo

**Heads up:** don't forget the extra / at the file repository. There are indeed 3 forward slash signs necessary.

### Configuring a Repository
During the exam you might have to configure your own repositories. We have set up the following repository server for your use.

Repository provided at:
- http://192.168.60.8/repos8/BaseOS
- http://repo.greateracademy.local/repos8/BaseOS

We will need to create a new repo file at:
```/etc/yum.repos.d/```

Let's make the following file ```errata.repo```:
```bash
vim /etc/yum.repos.d/
```

And add one of the following examples:<br>
```bash
[Appstream]
name=appstream
baseurl=http://ftp.scientificlinux.org/linux/redhat/rhel/rhel-9-beta/appstream/x86_64/
enabled=1
gpgcheck=0
```

Now let's attempt to update the kernel
```bash
[root@rhcsa ~]# dnf update kernel -y
```