ons 2008-04-23 klockan 18:37 +0800 skrev Andy Low: > Thanks! This solve my problem, I have tested the Squid on FC8 and > FC9-preview. But strange, I have another Linux Server running on RedHat 9 > and using Squid-2.6.18 has no problem. The TCP Window Scaling is turned on > too, unless the TCP Window Scaling on Redhat 9 is broken? How visible the problems due to broken firewalls messing up TCP Windows Scaling is depends on * Linux kernel version (window scaling selection algorithm has changed a number of times...) * Amount of installed memory (more memory -> more likely to see the problem) * Sysctl settings applied (defaults derived from amount of memory) Regards Henrik