> For the complete documentation index, see [llms.txt](https://docs.vergeos-demo.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.vergeos-demo.com/knowledge-base/networking/wireguard--adding-nameserver-entries-to-client-configs.md).

# Wireguard - Adding Nameserver entries to Client Configs

The following are instructions for adding a **PostUp** and **PostDown** script to the **Wireguard** config.\
For **Windows**, this adds **Powershell** commands for adding and removing a **DNS Client Rule** when the client connects and disconnects.

## Windows Clients

1. In the **Windows** Wireguard client, **edit the config**.
2. Add the following commands in the **\[Interface]** section:

```pwsh
PostUp = powershell -command "Add-DnsClientNrptRule -Namespace 'domainname.com' -NameServers '10.1.10.2'"
PostDown = powershell -command "Get-DnsClientNrptRule | Where { $_.Namespace -match '.*domainname\.com' } | Remove-DnsClientNrptRule -force"
```

3. Change the following entries to match **your** setup:
   * **Namespace**: A comma-separated list of domain names to add.
   * **NameServers**: A comma-separated list of nameserver IP addresses.

{% hint style="info" %}
**For the -match, make sure to include a backslash (\\) before each period (.)**
{% endhint %}

***

## Linux Clients

This may vary based on your Linux distribution.

1. **Edit the config file** on the **Linux** client.
2. In the **\[Interface]** section, add the following:

```bash
PostUp = resolvectl dns %i 10.1.10.2; resolvectl domain %i domainname.com
PreUp = iptables -A INPUT -i wg -m state --state ESTABLISHED,RELATED -j ACCEPT
PreUp = iptables -A INPUT -i wg -j REJECT
PostDown = iptables -D INPUT -i wg -m state --state ESTABLISHED,RELATED -j ACCEPT
PostDown = iptables -D INPUT -i wg -j REJECT
```

3. Replace **10.1.10.2** with the correct IP of your **nameserver**.
4. Replace **domainname.com** with your domain name.

***

{% hint style="info" %}
**Document Information**

* Last Updated: 2024-08-29
* vergeOS Version: 4.12.6
  {% endhint %}


---

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