Network – Quick Revision Sheet
192.168.1.1
2001:0db8:85a3::8a2e:0370:7334
HTTP : 80
HTTPS : 443
FTP : 21
SMTP : 25
SSH : 22
7. Application
6. Presentation
5. Session
4. Transport
3. Network
2. Data Link
1. Physical
HTTPS → TLS/SSL
SSH → Secure remote access
HTTPS : 443
SSH : 22
FTPS : 990
SFTP : 22