DietPi-Login DNS Resolver Not Working Topic is solved

[gamingunfinished]

Whenever my Pi attempts to login I get an error message saying that the DNS resolver failed. My internet is working.

[Joulinar]

Hi,

pls can you past the correct error message or a screen shot!

[gamingunfinished]

I tried it with cloudflare as well.

[Joulinar]

was this is a fresh installation? Do you use IPv6 on your network?

[gamingunfinished]

Yes, I just installed this and I use ipv6.

[Joulinar]

ok pls try to deactivate IPv6 on your dietpi system, Let's see if IPv4 is working. got to dietpi.txt on your SD card and change the following.

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# IPv6
CONFIG_ENABLE_IPV6=0

[gamingunfinished]

It's still not working.

[Joulinar]

pls can you past output of following

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ping -4 -c 1 dns9.quad9.net
ping -4 -c 1 9.9.9.9
ping -c 1 dns9.quad9.net
ping -c 1 9.9.9.9

[gamingunfinished]

Code: Select all

root@DietPi:~# ping -4 -c 1 dns9.quad9.net
PING dns9.quad9.net (9.9.9.9) 56(84) bytes of data.
64 bytes from dns9.quad9.net (9.9.9.9): icmp_seq=1 ttl=54 time=53.3 ms

--- dns9.quad9.net ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 53.303/53.303/53.303/0.000 ms
root@DietPi:~# ping -4 -c 1 9.9.9.9
PING 9.9.9.9 (9.9.9.9) 56(84) bytes of data.
64 bytes from 9.9.9.9: icmp_seq=1 ttl=54 time=182 ms

--- 9.9.9.9 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 181.721/181.721/181.721/0.000 ms
root@DietPi:~# ping -c 1 dns9.quad9.net
PING dns9.quad9.net(2620:fe::fe:9 (2620:fe::fe:9)) 56 data bytes
ping -c 1 9.9.9.9

--- dns9.quad9.net ping statistics ---
1 packets transmitted, 0 received, 100% packet loss, time 0ms

root@DietPi:~# ping -c 1 9.9.9.9
PING 9.9.9.9 (9.9.9.9) 56(84) bytes of data.
64 bytes from 9.9.9.9: icmp_seq=1 ttl=54 time=206 ms

--- 9.9.9.9 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 205.500/205.500/205.500/0.000 ms

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[Joulinar]

are you sure you deactivated IPv6 on your DietPi system? Because your system is still trying to access some IPv6 address, which should not be the case if IPv6 was disabled.

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root@DietPi:~# ping -c 1 dns9.quad9.net
PING dns9.quad9.net(2620:fe::fe:9 (2620:fe::fe:9)) 56 data bytes
ping -c 1 9.9.9.9

--- dns9.quad9.net ping statistics ---
1 packets transmitted, 0 received, 100% packet loss, time 0ms

pls can you past output of

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cat /DietPi/dietpi.txt |grep CONFIG_ENABLE_IPV6
ip a