CompTIA Security+ Certification SY0-601: The Total Course - DNS Security

The video tutorial discusses the evolution of secure protocols on the Internet, highlighting the transition from insecure to secure versions. It covers DNS and its vulnerabilities, introducing DNSSEC as a solution. SNMP's progression from unencrypted to encrypted versions is explained, emphasizing the importance of using version 3. The tutorial also covers SSH replacing Telnet, and secure FTP versions like FTPS and SFTP. Finally, it introduces Secure RTP for encrypting VoIP communications, stressing the need to understand these protocols and their port numbers for security exams.

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