> For the complete documentation index, see [llms.txt](https://helpcenter.gitprotect.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://helpcenter.gitprotect.io/common-issues/general/unable-to-activate-the-backup-agent-after-installation-on-linux.md).

# Unable to activate the backup agent after installation on Linux

Learn how to proceed if the installed backup agent cannot be activated.

### ⚠️ Issue

The **Linux** device with the backup agent (worker) installed does not appear in the **GitProtect Management Service** console and is unavailable for activation after installation.

***

### 💡 Cause

On **Red Hat**-based systems, such as **Fedora**, **CentOS**, or **RHEL**, if the backup agent is not available for activation after successful installation, it may indicate that some required components are missing.

***

### 🔧 Resolution

1. Install **OpenSSL** and update certificates using the following commands:

```bash
yum install -y openssl11.x86_64 ca-certificates
```

```bash
update-ca-trust extract
```

2. Next, you can either restart your **Linux** system or restart only the **GitProtect** backup agent service using the following command:

```bash
systemctl restart XoperoONEBackupAgent.service
```

3. Once done, the agent will be available for activation.