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dearsanky's avatar
dearsanky
Icon for Nimbostratus rankNimbostratus
Mar 10, 2016

Redirect the Nxdomain response

Hi, I've got one iRule to redirect the nxdomain response, but whenever i try it to my lab the rule does not work, please let me know if someone can give any idea on it. I want to redirect it to google.page. using TMOS version 11.6

Thanks....

when DNS_RESPONSE {
 if { [DNS::ptype] == "NXDOMAIN" } {
    DNS::answer insert "[DNS::question name]. 60 [DNS::question class] [DNS::question type] x.x.x.x"
       } 
    }
application delivery
BIG-IP DNS
iRules

1 Reply

  • Kai_Wilke's avatar
    Kai_Wilke
    Icon for MVP rankMVP
    Mar 11, 2016

    Hi dearsanky,

     

    you have to overwrite the DNS response code "NXDOMAIN" to "NOERROR".

     

    when DNS_RESPONSE {
    if { [DNS::header rcode] eq "NXDOMAIN" } {
        DNS::header rcode NOERROR
        DNS::answer insert "[DNS::question name]. 60 [DNS::question class] [DNS::question type] 1.1.1.1"
    } 
}

    Cheers, Kai