Just as it is necessary to understand network design elements and their functions, understanding network protocols is absolutely critical to maintaining a secure network environment. In this section, we will look at some common protocols, what they do, and what they are used for. This section will cover the following topics:
- IPSec
- SNMP
- SSH
- DNS
- TLS, SSL
- TCP/IP
- FTPS
- HTTPS
- SFTP
- SCP
- ICMP
- IPv4 versus IPv6
IPSec
When you send important . . .
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