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heymajo
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Jan 22, 2025

DNS resolve issues on Ubuntu 24 LTS with f5fpc

Hi,

 

Problems connecting to vpn after upgrading to ubuntu 24.04 | DevCentral

After switching to Ubuntu 24 LTS, I encountered the connection issues as described here https://community.f5.com/discussions/TechnicalForum/problems-connecting-to-vpn-after-upgrading-to-ubuntu-24-04/329549 . Applying the fix symlinking /etc/resolv.conf made things work partly. 

What I am seeing is that, after connecting with f5fpc, /etc/resolv.conf contains the two nameservers of my vpn domain (great), but also still my local lan nameserver (192.168.1.1 , not so great). This makes that about 1 in 3 DNS requests for hosts on the vpn side fail. 

$ cat /etc/resolv.conf
  17   │ nameserver 192.168.20.2
  18   │ nameserver 192.168.20.25
  19   │ nameserver 192.168.1.1
  20   │ search .

Any ideas what could be causing this ? 

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