Forum Discussion
Don_Noel_23994
Nimbostratus
NimbostratusDNS Monitor
I am load balancing DNS servers and the UDP monitor does not effectively test DNS server health. How would I write a custom monitor that could do a DNS query that would determine the nodes health? ...
I made an external monitor in perl. It sends a DNS request to a specific hostname. Hope this will help.
! /usr/bin/perl -w
hostname
my ($domain)= "www.yahoo.fr";
my (@addrlist,$name,$altnames,$addrtype,$len,$packaddr);
my ($ip);
hostname resolution
if (!(($name, $altnames, $addrtype, $len, @addrlist) = gethostbyname ($domain)))
{
return "DOWN";
}
else
{
return "UP";
}Regards,
Nicolas
