Forum Discussion

Jim_Kessler_504's avatar
Jim_Kessler_504
Icon for Nimbostratus rankNimbostratus
Nov 08, 2006

iRule that will query Internet Blacklist

Has anybody run across an iRule that is coded to query Internet Blacklist? I would like to keep traffic from hitting the Internet facing SMTP servers by allowing the F5 LTM to grab the IP address of the SMTP connection and query an Internet Blacklist. If the DNS query returns true, then reject the connection, if not, then pass the connection to the pool.

 

 

The community’s thoughts would be appreciated.

 

  • hoolio's avatar
    hoolio
    Icon for Cirrostratus rankCirrostratus
    There are a few steps you need to take to allow name resolution from a rule. Here is a post to start with from the codeshare (Click here)

     

     

    Aaron
  • Thanks Colin and hoolio. This will be my first iRule attempt as I recently inherited administration of the LTM.