Archive for the ‘dns’ Category

Add SPF record for your email relay server to avoid being counted as a spam

Step 1. Add SPF record to your DNS server Create TXT record type and add the following text without quotes “” @ TXT "v=spf1 a mx include:myrelay.com ~all" Step 2. Check if SPF record is added correctly username@laptop:/home/username# dig myhostname.com TXT   <<>> DiG 9.10.3-P4-Ubuntu <<>> myhostname.com TXT ;; global options: +cmd ;; Got answer: […]

Fiding domain hosting from root servers

Step 1: dig +norec @a.root-servers.net. yourdomain.com Result: Returns list of webservers where more information available. one of them for example is localwebserver.com Step 2: dig +norec @localwebserver.com. yourdomain.com

Free DNS Servers List 208.67.220.220 67.138.54.100 207.225.209.66