[Bug 788274] tcpdumps

[gene]

Well, it got a little annoying. I did a few tests with two types of configurations in /etc/nsswitch.conf 
1) it is either 
hosts:    files mdns4_minimal [NOTFOUND=return] dns 
or 2)
hosts:  files dns 

I also have the following in the /etc/resolv.conf :

#long lookup
options single-request
# Generated by NetworkManager
nameserver 192.168.1.1
#long lookup
options timeout:1

Sometimes even a simple google search can hang up for a while. However, one of the slowest sites I noticed is cnews.ru . I am attaching tcpdumps below.
The command "tcpdump -n -i wlan0 port 53" is used here. First with 
1) hosts:    files mdns4_minimal [NOTFOUND=return] dns 


** Attachment added: "slowff.tcpdump"
   https://bugs.launchpad.net/bugs/788274/+attachment/2472389/+files/slowff.tcpdump

** Attachment added: "w3m.tcpdump"
   https://bugs.launchpad.net/bugs/788274/+attachment/2472390/+files/w3m.tcpdump

** Attachment added: "elinks.tcpdump"
   https://bugs.launchpad.net/bugs/788274/+attachment/2472391/+files/elinks.tcpdump

** Attachment added: "slowep.tcpdump"
   https://bugs.launchpad.net/bugs/788274/+attachment/2472392/+files/slowep.tcpdump

** Attachment added: "slowchrome.tcpdump"
   https://bugs.launchpad.net/bugs/788274/+attachment/2472393/+files/slowchrome.tcpdump

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https://bugs.launchpad.net/bugs/788274

Title:
  dns lookup issue:  firefox& chromium take very long to load  on Ubuntu
  Narwhal

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