Today, I am encountering problems with reaching any websites on ubuntu.com domain.
Hmm. We’re having trouble finding that site.
We can’t connect to the server at ubuntu.com.
Also, I cannot download updates.
Err:1 http://security.ubuntu.com/ubuntu hirsute-security InRelease
Temporary failure resolving 'security.ubuntu.com'
Err:2 http://nl.archive.ubuntu.com/ubuntu hirsute InRelease
Temporary failure resolving 'nl.archive.ubuntu.com'
Err:3 http://nl.archive.ubuntu.com/ubuntu hirsute-updates InRelease
Temporary failure resolving 'nl.archive.ubuntu.com'
Err:4 http://nl.archive.ubuntu.com/ubuntu hirsute-backports InRelease
Temporary failure resolving 'nl.archive.ubuntu.com'
status.canonical.com does not load either (and other sites on canonical.com domain).
DNS resolution for ubuntu.com:
;; ANSWER SECTION:
ubuntu.com. 18 IN A 91.189.88.181
ubuntu.com. 18 IN A 91.189.88.180
Bit these addresses don't ping.
Update
After a reboot, I was able to open ubuntu.com in Firefox, and was able to run apt update. However, pinging ubuntu.com still did nit work. It appears now that ubuntu.com is reachable via IPv6 but not IPv4.
$ dig a ubuntu.com
<...>
;; ANSWER SECTION:
ubuntu.com. 51 IN A 91.189.88.181
ubuntu.com. 51 IN A 91.189.88.180
<...>
$ ping 91.189.88.181
PING 91.189.88.181 (91.189.88.181) 56(84) bytes of data.
^C
--- 91.189.88.181 ping statistics ---
5 packets transmitted, 0 received, 100% packet loss, time 4076ms
$ tracepath 91.189.88.181
1?: [LOCALHOST] pmtu 1500
1: _gateway 4.869ms
1: _gateway 3.077ms
2: no reply
3: gv-rc0011-cr101-et119-201.core.as33915.net 20.414ms
4: asd-rc0001-cr101-be156-10.core.as9143.net 15.348ms
5: nl-srk03a-ri1-ae50-0.core.as9143.net 14.500ms
6: 213.46.182.142 15.869ms asymm 7
7: ae-2-3210.edge3.London1.Level3.net 22.430ms asymm 9
8: no reply
9: no reply
10: no reply
11: no reply
12: no reply
13: no reply
14: no reply
However, if I use IPv6:
$ dig aaaa ubuntu.com
;; ANSWER SECTION:
ubuntu.com. 44 IN AAAA 2001:67c:1360:8001::2c
ubuntu.com. 44 IN AAAA 2001:67c:1360:8001::2b
$ ping 2001:67c:1360:8001::2c
PING 2001:67c:1360:8001::2c(2001:67c:1360:8001::2c) 56 data bytes
64 bytes from 2001:67c:1360:8001::2c: icmp_seq=1 ttl=54 time=21.9 ms
64 bytes from 2001:67c:1360:8001::2c: icmp_seq=2 ttl=54 time=23.7 ms
64 bytes from 2001:67c:1360:8001::2c: icmp_seq=3 ttl=54 time=24.3 ms
64 bytes from 2001:67c:1360:8001::2c: icmp_seq=4 ttl=54 time=23.3 ms
^C
--- 2001:67c:1360:8001::2c ping statistics ---
4 packets transmitted, 4 received, 0% packet loss, time 3006ms
rtt min/avg/max/mdev = 21.873/23.277/24.251/0.876 ms
