I found it’s very slow to open linkedin.com from my laptop which is using linux 2.6.31. I didn’t realized that this is a bug.
Just few moment ago, after googling a lillte bit, i know that this is a bug of linux.
The solution is easy, just change the mtu and it really works!!
the command is (execute this using root):
# ifconfig eth0 mtu 1360
Access to linkedin.com is better now. great!!
source: klik here.