I have used nslookup for years to access information in the Domain Name Systems (DNS), and was sad to see that it was moved to the “deprecated” state when dig (domain information groper) was released. Since I knew nslookup(1m) inside and out, I put off learning about dig, and instead focused on learning other interesting [...]
Whiel reading through the dig documentation today I came across the “nssearch” option: $ dig +nssearch @192.168.1.1 daemons.net SOA olympus.daemons.net. hostmaster.daemons.net. 1128483301 16384 2048 1048576 2560 from server olympus.daemons.net in 27 ms. SOA olympus.daemons.net. hostmaster.daemons.net. 1128483259 16384 2048 1048576 2560 from server elysium.daemons.net in 41 ms. This nifty little option can be used to view [...]
I came across the following article on blocking sites with DNS while perusing the OpenBSD technical mailing list. I use Mike’s Ad block Host file to silently blackhole ad sites, but never bothered to fix this permanetly in DNS. When I covert from BIND to DJBDNS, I will make sure to test this out.
