(In reply to rex from comment #50) > Gladly! > With only 'nameserver 217.23.2.11' in my /etc/resolv.conf and running sudo > /etc/init.d/dns-clean start, I appear to be completely unable to resolve any > name in any of my internet browsers. The dump.pcap simply shows entries like > 'Standard query 0x3347 A www.yahoo.com'.
In comment #13 you wrote that 217.23.2.11 and 8.8.8.8 are DNS servers provided automatically by ISP. It's bad, if they really return non- working DNS server in DHCP response. Check using dig utility that it really doesn't work: dig www.cnn.com @217.23.2.11 If it times out or returns an error, get rid of this DNS server in the system configuration. I.e. manually set DNS servers to 8.8.8.8 and 8.8.4.4. > With only 'nameserver 8.8.8.8' in my /etc/resolv.conf and running sudo > /etc/init.d/dns-clean start, I can resolve names again. I've changed the > tcpdump command to 'sudo tcpdump -w /tmp/dump.pcap -s 0 udp and port 53 and > host 8.8.8.8'. > > I've attached the resulting dump.pcap below. In it it shows that several > hostnames were successfully resolved. At the end, it failed to resolve > cnn.com but is not shown in the dump. > > I then did an extra tcpdump with 'sudo tcpdump -w /tmp/dump.pcap -s 0 udp and > port 53' with google.com failing at the end, but again, it is not shown. I meant to provide both logs, tcpdump and HTTP log from firefox, where we could see that we tried to resolve the address. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1796979 Title: Intermittently can't connect to the server To manage notifications about this bug go to: https://bugs.launchpad.net/firefox/+bug/1796979/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
