Boosting TMG Performance through simple DNS tweaks
TMG uses Its own Built-in Name resolution Cache, Then it fails back to DNS, then it fails back to Netbios Name Resolution. Accordingly below are some DNS related methods that can be used to optimize TMG Performance
Thank you Zaid, very useful tips.
"3.Try to avoid using an IP Address in access Rules - Very few Public DNS records provide backward Look-up Zones"
Why does TMG need to resolve ip addresses to names? I dont think there is a need for that.
If I may rewrite the point, I will write it like this " 2. try to avoid using domain names in DENY access rules- because ISA/TMG will do an additional reverse lookup query from ip address to domain name in order to determine whether the ip address match any of the blocked domains in the rule."
If you have allowed or denied access based on Domain Name sets or URL sets, if TMG gets an IP, it needs to do a reverse lookup to match the set. TMG cannot automagically resolve that IP to a name. have a read at blogs.technet.com/.../isa-server-2006-stops-answering-requests.aspx
BTW my previous comment was for Suliman
Is this registry setting any different than going into the adapter's setting, WINS tab and disabling NetBIOS over TCP/IP?