dns tricks

dns tricks

# figure out authoritative dns server for domain

~ @localhost> nslookup -querytype=soa jpi.jflei.com
Server:         192.168.1.1
Address:        192.168.1.1#53

Non-authoritative answer:
*** Can't find jpi.jflei.com: No answer

Authoritative answers can be found from:
jflei.com
        origin = ns19.zoneedit.com
        mail addr = soacontact.zoneedit.com
        serial = 2014077198
        refresh = 2400
        retry = 360
        expire = 1209600
        minimum = 300

# do dns lookup from authoritative dns server, rather than nearest caching server

~ @localhost> nslookup jpi.jflei.com ns19.zoneedit.com
Server:         ns19.zoneedit.com
Address:        74.50.27.56#53

Name:   jpi.jflei.com
Address: 67.180.48.77