Cached DNS Lookup TTL


hi,

we have method of blocking access various websites, if wsystem gets overloaded , query sent external dns server , resolves address , cached on our internal dns  - allowing users access.

can ttl value of cached lookups changed ?

thanks

alan

i not aware of way, clear cache periodically via script.  you stop server forwarding dns queries, in end seems real problem.

-- 
paul bergson
mvp - directory services
mcitp: enterprise administrator
mcts, mct, mcse, mcsa, security+, bs csci
2008, vista, 2003, 2000 (early achiever), nt4
http://www.pbbergs.com    twitter @pbbergs
http://blogs.dirteam.com/blogs/paulbergson

please no e-mails, questions should posted in newsgroup. posting provided "as is" no warranties, , confers no rights.



Windows Server  >  Directory Services



Comments

Popular posts from this blog

Group Policy Event ID 1058 Error Code 1326 (The user name or password is incorrect)

Suspicious event log Event ID: 4905

DCOM received error "2147746132" from...