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docs/content/faq.md

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+---
+title: FAQ
+hide:
+  - navigation
+---
+
+Here are some frequently asked questions or errors about `wg-easy`. If you have a question that is not answered here, please feel free to open a discussion on GitHub.
+
+## Error: WireGuard exited with the error: Cannot find device "wg0"
+
+This error indicates that the WireGuard interface `wg0` does not exist. This can happen if the WireGuard kernel module is not loaded or if the interface was not created properly.
+
+To resolve this issue, you can try the following steps:
+
+1. **Load the WireGuard kernel module**: If the WireGuard kernel module is not loaded, you can load it manually by running:
+
+   ```bash
+    sudo modprobe wireguard
+   ```
+
+2. **Load the WireGuard kernel module on boot**: If you want to ensure that the WireGuard kernel module is loaded automatically on boot, you can add it to the `/etc/modules` file:
+
+   ```bash
+   echo "wireguard" | sudo tee -a /etc/modules
+   ```
+
+## can't initialize iptables table `nat': Table does not exist (do you need to insmod?)
+
+This error indicates that the `nat` table in `iptables` does not exist. This can happen if the `iptables` kernel module is not loaded or if the `nat` table is not supported by your kernel.
+
+To resolve this issue, you can try the following steps:
+
+1. **Load the `nat` kernel module**: If the `nat` kernel module is not loaded, you can load it manually by running:
+
+   ```bash
+   sudo modprobe iptable_nat
+   ```
+
+2. **Load the `nat` kernel module on boot**: If you want to ensure that the `nat` kernel module is loaded automatically on boot, you can add it to the `/etc/modules` file:
+
+   ```bash
+    echo "iptable_nat" | sudo tee -a /etc/modules
+   ```
+
+## can't initialize ip6tables table `nat': Table does not exist (do you need to insmod?)
+
+This error indicates that the `nat` table in `ip6tables` does not exist. This can happen if the `ip6tables` kernel module is not loaded or if the `nat` table is not supported by your kernel.
+
+To resolve this issue, you can try the following steps:
+
+1. **Load the `nat` kernel module**: If the `nat` kernel module is not loaded, you can load it manually by running:
+
+   ```bash
+   sudo modprobe ip6table_nat
+   ```
+
+2. **Load the `nat` kernel module on boot**: If you want to ensure that the `nat` kernel module is loaded automatically on boot, you can add it to the `/etc/modules` file:
+
+   ```bash
+    echo "ip6table_nat" | sudo tee -a /etc/modules
+   ```
+
+## can't initialize iptables table `filter': Permission denied
+
+This error indicates that the `filter` table in `iptables` cannot be initialized due to permission issues. This can happen if you are not running the command with sufficient privileges.
+
+To resolve this issue, you can try the following steps:
+
+1. **Load the `filter` kernel module**: If the `filter` kernel module is not loaded, you can load it manually by running:
+
+   ```bash
+   sudo modprobe iptable_filter
+   ```
+
+2. **Load the `filter` kernel module on boot**: If you want to ensure that the `filter` kernel module is loaded automatically on boot, you can add it to the `/etc/modules` file:
+
+   ```bash
+   echo "iptable_filter" | sudo tee -a /etc/modules
+   ```
+
+## can't initialize ip6tables table `filter': Permission denied
+
+This error indicates that the `filter` table in `ip6tables` cannot be initialized due to permission issues. This can happen if you are not running the command with sufficient privileges.
+
+To resolve this issue, you can try the following steps:
+
+1. **Load the `filter` kernel module**: If the `filter` kernel module is not loaded, you can load it manually by running:
+
+   ```bash
+   sudo modprobe ip6table_filter
+   ```
+
+2. **Load the `filter` kernel module on boot**: If you want to ensure that the `filter` kernel module is loaded automatically on boot, you can add it to the `/etc/modules` file:
+
+   ```bash
+    echo "ip6table_filter" | sudo tee -a /etc/modules
+   ```