I am running a Fedora 2 machine with Samba 3.0.7. I am using LDAP to store the user info. Everything is from stock rpms. I am using domain logins for my users.

Since 3.0.6, whenever someone tries to write a file to the server, it is extremely slow. It doesn't matter whether it's a Win XP sp1, sp2 or Win2000 client but for some reason, my computer didn't have this problem.

What I found out is that I had done the registry "tweak" from speedguide.net. Once I applied this registry edit, it worked on other machines too.

Here is the contents of their registry file:

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters]
"SackOpts"=dword:00000001
"TcpWindowSize"=dword:0003ebc0
"Tcp1323Opts"=dword:00000001
"DefaultTTL"=dword:00000040
"EnablePMTUBHDetect"=dword:00000000
"EnablePMTUDiscovery"=dword:00000001
"GlobalMaxTcpWindowSize"=dword:0003ebc0

I am not sure which line of this fixed the problem but I am sure that someone would could tell from looking at it. I am wondering what would have changed between 3.0.5 and 3.06 to have done this?

Also, I am running an almost exact replica of the problematic server on another machine and I it works fine without any modifications to the client's registry.

Thanks,

Doug
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