For more information regarding the security incident at F5, the actions we are taking to address it, and our ongoing efforts to protect our customers, click here.

Forum Discussion

James_Yang_9981's avatar
James_Yang_9981
Icon for Altostratus rankAltostratus
Mar 01, 2006

DNS return packet rewrite, usage and permormance

Hi: I write a rules that can modify the DNS server response. the usage of this rules is when server return wrong result like NX-DOMAIN, BIGIP will response and give client a "good" results that po...
application delivery
dev
devops
iRules
James_Yang_9981's avatar
James_Yang_9981
Icon for Altostratus rankAltostratus
Jun 08, 2006
HI, No one can help me with the performance issue? there a large of bussiness optunities behind this rules. If ISP using BIGIP doing DNS loadbalancing, they can "redirect" all the incorrect type of name resolve request to "correct" one and to there Advertisment server. So ISP can get profit from ther DNS systems!

 

 

that is what MSN search bar, google search bar or yahoo search bar does with the browser. if people type incorrect domain name like "wwww.f5.com", from normal DNS, they will get a response of "None-Exist Domain". then the bars working to lead them to the search engin. But, if BIGIP can do this, the "incorrect" one will be "corrected" by BIGIP and then to the Advertisment Server.