oe7drt-website/content/posts/2022/25-systemd-flushing-the-dns-cache/index.md
Dominic Reich e8393d95a3
update posts aliases; fix some dates; fix some typography
- post aliases instead of redirects
 - some dates were wrong, fixed and create multiple aliases to not brake the old date
 - fix some typography like newlines on end of file
2023-11-18 23:01:27 +01:00

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title aliases date lastmod categories tags
Systemd: flushing the DNS cache /posts/2022-07-04-systemd-flushing-the-dns-cache 2022-07-04T17:22:48+02:00 2022-12-14T16:05:48+01:00
computerstuff
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).

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:

$ sudo systemd-resolve --flush-caches

You could also use sudo resolvectl flush-caches if you like or prefer.

Now verify the empty cache:

$ 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