|
|
|
|
---
|
|
|
|
|
title: "Systemd: flushing the DNS cache"
|
|
|
|
|
aliases: /posts/2022-07-04-systemd-flushing-the-dns-cache
|
|
|
|
|
date: 2022-07-04T17:22:48+02:00
|
|
|
|
|
lastmod: 2024-09-28T23:48:06+0000
|
|
|
|
|
categories: [computerstuff]
|
|
|
|
|
tags: [linux, systemd, networking, manjaro, dns]
|
|
|
|
|
---
|
|
|
|
|
|
|
|
|
|
First off I want to say, that Systemd is quite new to me and I always used the
|
|
|
|
|
old and classic init systems like OpenRC (which is still available on
|
|
|
|
|
Gentoo -- if someone cares about that more than I do).
|
|
|
|
|
|
|
|
|
|
<!--more-->
|
|
|
|
|
|
|
|
|
|
Now let's start right away, flushing the DNS cache on a linux box using Systemd
|
|
|
|
|
is not that complicated, but the correct commands should be known.
|
|
|
|
|
|
|
|
|
|
And this post is all about that:
|
|
|
|
|
|
|
|
|
|
```console
|
|
|
|
|
$ sudo systemd-resolve --flush-caches
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
You could also use `sudo resolvectl flush-caches` if you like or prefer.
|
|
|
|
|
|
|
|
|
|
Now verify the empty cache:
|
|
|
|
|
|
|
|
|
|
```console
|
|
|
|
|
$ systemd-resolve --statistics
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
I usually do not need to flush my computers DNS caches, but fiddling with my
|
|
|
|
|
firewall at home made me use this very often over the last few weeks.
|
|
|
|
|
|
|
|
|
|
## Sources
|
|
|
|
|
|
|
|
|
|
- <https://devconnected.com/how-to-flush-dns-cache-on-linux/>
|
