> For the complete documentation index, see [llms.txt](https://surftest.gitbook.io/axelar-wiki/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://surftest.gitbook.io/axelar-wiki/english/server-settings/swap-file.md).

# SWAP File

If you have rented a weak server, this is the solution for you. It will not be superfluous to play it safe and increase the operational capabilities of the server. Text instructions are [here](https://linuxize.com/post/how-to-add-swap-space-on-ubuntu-18-04/). 

If there is a possibility that you have ALREADY created a SWAP file, you need to check its existence.

```
sudo swapon --show
```

If the file does not exist, then proceed to create it.

```
sudo apt install fallocate -y
sudo fallocate -l 2G /swapfile
sudo chmod 600 /swapfile
sudo mkswap /swapfile
sudo swapon /swapfile
```

To make the change permanent, open and modify the `fstab` file:

```
sudo nano /etc/fstab
```

Let's insert the following line at the end of the file: `/swapfile swap swap defaults 0 0`

🎉Make sure the file is created and running:

```
sudo swapon --show
sudo free -h
```