На Ubuntu 16.04 мне настроили Администратора сети для автоматического использования соединения OpenVPN при системном запуске. Это работает хорошо.
Однако, когда резюме машины, будучи временно отстраненным, хотя VPN снова соединяется, я не могу просмотреть (или ping) веб-сайты, потому что имена хостов не могут быть разрешены. По некоторым причинам поиски DNS перестали работать.
ping: unknown host www.google.com
Это только начало происходить несколько недель назад, я не уверен, что изменилось.
Вывод cat /etc/NetworkManager/NetworkManager.conf
:
[main]
plugins=ifupdown,keyfile,ofono
dns=dnsmasq
[ifupdown]
managed=false
Вывод cat /etc/resolv.conf
:
# Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8)
# DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN
nameserver 127.0.1.1
Вывод host -v www.apple.com
(перед приостановкой):
Trying "www.apple.com"
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 41111
;; flags: qr rd ra; QUERY: 1, ANSWER: 4, AUTHORITY: 9, ADDITIONAL: 7
;; QUESTION SECTION:
;www.apple.com. IN A
;; ANSWER SECTION:
www.apple.com. 1287 IN CNAME www.apple.com.edgekey.net.
www.apple.com.edgekey.net. 1516 IN CNAME www.apple.com.edgekey.net.globalredir.akadns.net.
www.apple.com.edgekey.net.globalredir.akadns.net. 1516 IN CNAME e6858.dsce9.akamaiedge.net.
e6858.dsce9.akamaiedge.net. 20 IN A 104.94.190.92
;; AUTHORITY SECTION:
dsce9.akamaiedge.net. 1516 IN NS n3dsce9.akamaiedge.net.
dsce9.akamaiedge.net. 1516 IN NS n1dsce9.akamaiedge.net.
dsce9.akamaiedge.net. 1516 IN NS n6dsce9.akamaiedge.net.
dsce9.akamaiedge.net. 1516 IN NS a0dsce9.akamaiedge.net.
dsce9.akamaiedge.net. 1516 IN NS n4dsce9.akamaiedge.net.
dsce9.akamaiedge.net. 1516 IN NS n5dsce9.akamaiedge.net.
dsce9.akamaiedge.net. 1516 IN NS n0dsce9.akamaiedge.net.
dsce9.akamaiedge.net. 1516 IN NS n7dsce9.akamaiedge.net.
dsce9.akamaiedge.net. 1516 IN NS n2dsce9.akamaiedge.net.
;; ADDITIONAL SECTION:
a0dsce9.akamaiedge.net. 1516 IN AAAA 2600:1480:e800::c0
n0dsce9.akamaiedge.net. 1516 IN A 88.221.81.194
n1dsce9.akamaiedge.net. 1516 IN A 23.62.100.157
n2dsce9.akamaiedge.net. 1516 IN A 95.101.2.121
n3dsce9.akamaiedge.net. 1516 IN A 95.101.79.79
n4dsce9.akamaiedge.net. 1516 IN A 23.62.100.159
n5dsce9.akamaiedge.net. 1516 IN A 23.62.100.164
Received 504 bytes from 127.0.1.1#53 in 66 ms
Trying "e6858.dsce9.akamaiedge.net"
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 60195
;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 9, ADDITIONAL: 9
;; QUESTION SECTION:
;e6858.dsce9.akamaiedge.net. IN AAAA
;; ANSWER SECTION:
e6858.dsce9.akamaiedge.net. 20 IN AAAA 2a02:26f0:60:186::1aca
e6858.dsce9.akamaiedge.net. 20 IN AAAA 2a02:26f0:60:199::1aca
;; AUTHORITY SECTION:
dsce9.akamaiedge.net. 1516 IN NS n0dsce9.akamaiedge.net.
dsce9.akamaiedge.net. 1516 IN NS n2dsce9.akamaiedge.net.
dsce9.akamaiedge.net. 1516 IN NS n3dsce9.akamaiedge.net.
dsce9.akamaiedge.net. 1516 IN NS a0dsce9.akamaiedge.net.
dsce9.akamaiedge.net. 1516 IN NS n4dsce9.akamaiedge.net.
dsce9.akamaiedge.net. 1516 IN NS n1dsce9.akamaiedge.net.
dsce9.akamaiedge.net. 1516 IN NS n5dsce9.akamaiedge.net.
dsce9.akamaiedge.net. 1516 IN NS n6dsce9.akamaiedge.net.
dsce9.akamaiedge.net. 1516 IN NS n7dsce9.akamaiedge.net.
;; ADDITIONAL SECTION:
a0dsce9.akamaiedge.net. 1516 IN AAAA 2600:1480:e800::c0
n0dsce9.akamaiedge.net. 1516 IN A 88.221.81.194
n1dsce9.akamaiedge.net. 1516 IN A 23.62.100.157
n2dsce9.akamaiedge.net. 1516 IN A 95.101.2.121
n3dsce9.akamaiedge.net. 1516 IN A 95.101.79.79
n4dsce9.akamaiedge.net. 1516 IN A 23.62.100.159
n5dsce9.akamaiedge.net. 1516 IN A 23.62.100.164
n6dsce9.akamaiedge.net. 1516 IN A 23.62.100.165
n7dsce9.akamaiedge.net. 1516 IN A 23.62.100.166
Received 454 bytes from 127.0.1.1#53 in 29 ms
Trying "e6858.dsce9.akamaiedge.net"
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 44627
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0
;; QUESTION SECTION:
;e6858.dsce9.akamaiedge.net. IN MX
;; AUTHORITY SECTION:
dsce9.akamaiedge.net. 600 IN SOA n0dsce9.akamaiedge.net. hostmaster.akamai.com. 1489520008 1000 1000 1000 1800
Received 109 bytes from 127.0.1.1#53 in 28 ms
Вывод host -v www.apple.com
(после приостановки):
Trying "www.apple.com"
;; connection timed out; no servers could be reached
Во вторник (2017-04-18) мои системные обновления включали новые версии нескольких пакетов, связанных с DNS (включая dnsutils
и dnsmasq-base
). Как только они были установлены, проблема исчезла.