31 lines
1 KiB
Markdown
31 lines
1 KiB
Markdown
|
---
|
||
|
|
title: How to use a non-default ssh port for a Nix distributed build host
|
||
|
|
date: 2022-11-01
|
||
|
|
tags: [nix]
|
||
|
|
---
|
||
|
|
|
||
|
|
I wanted to host my ssh server on a different port than the default `22`, this allows me to skip on some spam in the logs, as the default port gets scanned quite often.
|
||
|
|
By changing that on the server I broke distributing my nix builds, as they were using the default port as well.
|
||
|
|
It took me a while to figure out how to configure the port the builder would use so I thought I would share here.
|
||
|
|
|
||
|
|
Here's an example of a *client-side* configuration - using a build server `buildHostName` with a user named `nix-builder`, connecting via ssh to port `1234`.
|
||
|
|
```nix
|
||
|
|
programs.ssh.extraConfig = ''
|
||
|
|
Host buildHostName
|
||
|
|
HostName buildHostName
|
||
|
|
Port 1234
|
||
|
|
StrictHostKeyChecking=accept-new
|
||
|
|
'';
|
||
|
|
|
||
|
|
nix.buildMachines = [{
|
||
|
|
hostName = "buildHostName";
|
||
|
|
sshUser = "nix-builder";
|
||
|
|
sshKey = "/path/to/key";
|
||
|
|
systems = [ "x86_64-linux" ];
|
||
|
|
maxJobs = 2;
|
||
|
|
speedFactor = 2;
|
||
|
|
supportedFeatures = [ "kvm" ];
|
||
|
|
mandatoryFeatures = [ ];
|
||
|
|
}];
|
||
|
|
```
|