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How to add SPF Record in Bind DNS Zone on Linux

In the world of email authentication, Sender Policy Framework (SPF) is a widely used protocol that helps prevent email spoofing and protects against forged sender addresses. By adding an SPF…


How to Install nslookup on CentOS 6.3

nslookup is a command-line tool used to query DNS servers and obtain domain-related information, such as IP addresses, mail servers, and other records. It is a helpful utility for network…