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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 googl...
application delivery
BIG-IP DNS
iRules
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