Understand the difference between recursive and non recursive queries when querying the DNS server…
Category : DNS Theory
Explanation of the difference between authoritative and non-authoritative DNS server responses…
Detailed explanation of the messages format of DNS protocol…
Detailed explanation of the other sections in response of DNS server – additional and authority section…
Detailed explanation of the DNSBL (DNS-based Blackhole List), therefore the method of recording of potentially dangerous or malicious IP addresses in DNS especially against spam…
Detailed explanation of the method of protection against spam by using SPF (Sender Policy Framework)…
Information about DNS SRV record type that is used for putting servers for procure certain services for domain. For example, the routing of telephone calls by SIP protocol…
Information about DNS record type NS, which delegating a subdomain to another DNS server…
Information about settings of MX records for domain. MX record specifies where to deliver e-mail for domain…
Information about the DNS record of the CNAME is used to set an alias for another domain name…