Alex<p>Wow, <a href="https://swiss.social/tags/ChatGPT" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>ChatGPT</span></a> actually helped me debug a networking issue I had. My <a href="https://swiss.social/tags/Wireguard" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Wireguard</span></a> tunnel did not work as expected, most traffic was tunnelled just fine, but some websites I tried to access through it did not want to load and just timed out, even though curl showed me that DNS worked and that it could connect.<br>The culprit: MTU. Setting it slightly lower to 1410 seemed to fix it for me. Probably due to PPPoE..<br><a href="https://swiss.social/tags/homelab" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>homelab</span></a> <a href="https://swiss.social/tags/itsnotalwaysDNS" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>itsnotalwaysDNS</span></a></p>