How to split DNS DKIM records
DNS TXT records do have a limitation. Strings must not be longer than 255 Bytes. This limitation can hurt you with SPF records or DKIM records. In this case you…
Posts related to Domain Name Servers (DNS)
Hide your version of BIND
To hide your version of bind, enter the following value to your named.conf version "[NONE]"; in the option section: options { directory "/var/lib/bind"; version "[NONE]"; }; Check the value with…
Clear DNS cache on a Mac
Every Mac caches resolved DNS queries. Sometimes you get entries which create problems. To get rid of them you have to options: reboot the machine. This is the bad one.…
How Do I Update The Root Hints Data File for BIND Named Server?
My local nameserver root zone file is outdated. It has no information about IPv6 and a root server recently changed its IP address. How do I update my root hints…
Adding a DKIM record to your DNS
Adding a DKIM record to your DNS is quite simple. First, your create a key pair with openssl: openssl genrsa -out private.key 1024 openssl rsa -in private.key -pubout -out public.key…