That's a bad idea - fix DNS and don't force them to use the hosts file crutch.
------------------------------------------------------ Roger D. Seielstad - MCSE Sr. Systems Administrator Inovis - Formerly Harbinger and Extricity Atlanta, GA > -----Original Message----- > From: Andrey Fyodorov [mailto:[EMAIL PROTECTED]] > Sent: Tuesday, October 08, 2002 5:54 PM > To: Exchange Discussions > Subject: RE: TCP tuning > > > Customers put the name and IP address of the Exchange server > into their HOSTS file. > > > -----Original Message----- > From: Roger Seielstad [mailto:[EMAIL PROTECTED]] > Sent: Tuesday, October 08, 2002 3:55 PM > To: Exchange Discussions > Subject: RE: TCP tuning > > > Are these users locally connecting, or are they coming across > VPN or the > like? > > Some slow connect issues are DNS (or name resolution in > general) related, so > make sure you have good name resolution first off. > > If they are coming across VPN, Outlook sends a lot of packets > with the Do > Not Fragment bit set, and if the packet plus the IPSec > overhead exceeds the > MTU size, it will reject the packet. In certain circumstances > (I can't pin > them down entirely), the ICMP reply "Packet needs to be > fragmented but DF > set." gets dropped, so the client doesn't factor that into > the MTU size. > > ------------------------------------------------------ > Roger D. Seielstad - MCSE > Sr. Systems Administrator > Inovis - Formerly Harbinger and Extricity > Atlanta, GA > > > > -----Original Message----- > > From: Andrey Fyodorov [mailto:[EMAIL PROTECTED]] > > Sent: Tuesday, October 08, 2002 2:11 PM > > To: Exchange Discussions > > Subject: TCP tuning > > > > > > Hi all. Could anyone here confirm whether this helps? > > > > http://rdweb.cns.vt.edu/public/notes/win2k-tcpip.htm > > > > > > I am looking at this because some of my customers are > > reporting slow Outlook performance despite VERY good Internet > > connectivity (high bandwidth, very good traceroutes in both > > directions). > > > > Some customers have to click Retry a couple of times before > > Outlook connects to their Exchange server. > > > > I have tried these settings on a lab server and it is running > > fine. However I can't really simluate the real world network > > load of the production server in the lab in order to verify > > whether these settings made any improvements. > > > > > > > > I am also checking these articles that indicate Win2K SP3 may > > help in my situation: > > http://support.microsoft.com/default.aspx?scid=kb;en-us;Q301337 > > http://support.microsoft.com/default.aspx?scid=kb;en-us;Q301117 > > > > Andrey > > > > _________________________________________________________________ > > List posting FAQ: http://www.swinc.com/resource/exch_faq.htm > > Archives: http://www.swynk.com/sitesearch/search.asp > > To unsubscribe: mailto:[EMAIL PROTECTED] > > Exchange List admin: [EMAIL PROTECTED] > > > > _________________________________________________________________ > List posting FAQ: http://www.swinc.com/resource/exch_faq.htm > Archives: http://www.swynk.com/sitesearch/search.asp > To unsubscribe: mailto:[EMAIL PROTECTED] > Exchange List admin: [EMAIL PROTECTED] > > _________________________________________________________________ > List posting FAQ: http://www.swinc.com/resource/exch_faq.htm > Archives: http://www.swynk.com/sitesearch/search.asp > To unsubscribe: mailto:[EMAIL PROTECTED] > Exchange List admin: [EMAIL PROTECTED] > _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED]
