Masq Question

[Ed Lawson <elawson@lawson-philpot.com>]

I just installed Debian for a server which provides interent access to 
several machines via a dial up account.  Running 2.2r3.  I am using the 
same rules i used running RH for setting up IP Masqing.  For some reason 
certain websites such as LinuxToday will load on the server's browswer, 
but not on the desktop machines.  Other services such as automatic 
updates to for QuickBooks do not work.  This was not a problem when I 
used RH.  Does Debian have some settings in this area that are tighter 
and block certain traffic under these conditions?  Not anxious to go 
back to RH, but this is a showstopper.  TIA

Ed Lawson