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(network) added graphics detailing netfilter hooks

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quak
2026-03-15 10:29:08 +01:00
parent f47acb9afe
commit d26a3cdab7
2 changed files with 9 additions and 2 deletions
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network.md
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@@ -5,13 +5,20 @@ This document holds network related notes.
<!--toc:start-->
- [Network](#network)
- [Enable routing](#enable-routing)
- [Create local network with dhcp/dns](#create-local-network-with-dhcpdns)
- [Creating a local network with dhcp/dns](#creating-a-local-network-with-dhcpdns)
- [`dnsmasq` configuration](#dnsmasq-configuration)
- [`nftables` configuration](#nftables-configuration)
- [starting the routing system](#starting-the-routing-system)
<!--toc:end-->
## Linux Netfilter System
Text pending.
![Netfilter Hooks](./resources/network/nf-hooks.png)
## Enable routing
To enable routing **temporarily** use the following command:
@@ -27,7 +34,7 @@ net.ipv4.ip_forward=1
```
## Create local network with dhcp/dns
## Creating a local network with dhcp/dns
> **WARNING:** do not use this configuration for an edge router (directly connected to the internet/isp)!
> for an edge router you *absolutely need* to set up a reasonable firewall!