Wireguard failed to set DNS configuration

General system Newbie
1

Hi, I’m trying to set up ProtonVPN via Wireguard (on EndeavourOS of course). I followed this guide to get the config file, followed by this guide to set up the VPN.

However, when I run the wg-quick command from the terminal, I get an error like “Failed to set DNS configuration: Could not activate remote peer ‘org.freedesktop.resolve1’: activation request failed: unknown unit”. I can’t seem to find an appropriate solution from an internet search so here I am asking for help on this forum. Thanks for reading!

2

Did you try the full path to your configuration file?

sudo wg-quick up /my/wireguard/conf

3

I just tried it, and I got the same error.

4

I just tried their free plan and it works for me after changing the name of the conf file. had to remove the _

▶ sudo wg-quick up /home/justice/ramdisk/wg99_conf-NL-FREE-140076.conf                                                                                            X 11ms
wg-quick: The config file must be a valid interface name, followed by .conf

░▒▓    ~/ramdisk   05:59  󰌋 
▶ mv wg99_conf-NL-FREE-140076.conf wg99.conf                                                                                                                      X 12ms

░▒▓    ~/ramdisk   06:01  󰌋 
▶ sudo wg-quick up /home/justice/ramdisk/wg99.conf                                                                                                                 0 1ms
Warning: `/home/justice/ramdisk/wg99.conf' is world accessible
[#] ip link add wg99 type wireguard
[#] wg setconf wg99 /dev/fd/63
[#] ip -4 address add 10.2.0.2/32 dev wg99
[#] ip link set mtu 1420 up dev wg99
[#] resolvconf -a wg99 -m 0 -x
[#] wg set wg99 fwmark 51820
[#] ip -4 route add 0.0.0.0/0 dev wg99 table 51820
[#] ip -4 rule add not fwmark 51820 table 51820
[#] ip -4 rule add table main suppress_prefixlength 0
[#] sysctl -q net.ipv4.conf.all.src_valid_mark=1
[#] nft -f /dev/fd/63

░▒▓    ~/ramdisk   06:01  󰌋 
5

You do have wireguard-tools installed right?

6

I have done both things, as it was outlined in the guide. Looking closer, it seems the error comes up when the ‘wg-quick’ command tries to use the resolvconf command. However, I don’t know enough about linux networking to know how to probe further and solve this. If it helps, this is a fresh install of EndeavourOS (installed earlier today) so everything as far as network settings go should be stock.

7

What is the output of cat /etc/resolv.conf

8

[(hostmachine)~]$ cat /etc/resolv.conf
Generated by NetworkManager
search home
nameserver [IP of my router]

9

Now I think about it, you probably have a firewall?

10

Yeah there is, it seems it was installed by default when I installed the distro. Should I be doing something with it?

11

Let’s try this command. It will open the port wireguard uses but not permanently. I’m guessing it’s firewalld

sudo firewall-cmd --zone=public --add-port=51820/tcp --add-port=51820/udp

12

Unfortunately this command did not change the outcome.

13

I guess you’ll have to wait until someone with actual knowledge about the subject comes online so he can help you out.

14

Turns out some service wasn’t enabled for some reason.

I ran a command at this link: Github

Thanks for the effort though!

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15

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