M3 and Nftables Router Tutorial: Difference between pages

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#REDIRECT [[Build an M3 Anvil! Cluster]]
{{howto_header}}
 
{{warning|1=This is incomplete and untrustworthy! Do not expect anything to be useful or accurate before this warning is removed.}}
 
This tutorial is meant to show how to use <span class="code">nftables</span> to build a router suitable for a home or boat.
 
= Setup =
 
Make sure that <span class="code">ip_forward</span> is enabled in the kernel.
 
<syntaxhighlight lang="bash">
cat /proc/sys/net/ipv4/ip_forward
</syntaxhighlight>
<syntaxhighlight lang="text">
0
</syntaxhighlight>
 
This shows that it's disabled. To enable it, write "<span class="code">1</span>" to that virtual file
 
<syntaxhighlight lang="bash">
echo 1 > /proc/sys/net/ipv4/ip_forward
cat /proc/sys/net/ipv4/ip_forward
</syntaxhighlight>
<syntaxhighlight lang="text">
1
</syntaxhighlight>
 
 
= References =
 
* [https://wiki.nftables.org/wiki-nftables/index.php/Simple_ruleset_for_a_home_router Simple ruleset for a home router] - nftables Wiki
* [https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/9/html/configuring_firewalls_and_packet_filters/getting-started-with-nftables_firewall-packet-filters Getting started with nftables] - (*May required a Red Hat account).
 
<span class="code"></span>
<syntaxhighlight lang="bash">
</syntaxhighlight>
<syntaxhighlight lang="text">
</syntaxhighlight>
 
{{footer}}

Revision as of 01:05, 28 March 2024

 AN!Wiki :: How To :: Nftables Router Tutorial

Warning: This is incomplete and untrustworthy! Do not expect anything to be useful or accurate before this warning is removed.

This tutorial is meant to show how to use nftables to build a router suitable for a home or boat.

Setup

Make sure that ip_forward is enabled in the kernel.

cat /proc/sys/net/ipv4/ip_forward
0

This shows that it's disabled. To enable it, write "1" to that virtual file

echo 1 > /proc/sys/net/ipv4/ip_forward
cat /proc/sys/net/ipv4/ip_forward
1


References

 

Any questions, feedback, advice, complaints or meanderings are welcome.
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