Portai
Žinomesni portai:
- 20 - FTP (File Transfer Protocol)
- 21 - FTP (File Transfer Protocol)
- 22 - SSH (Secure Shell)
- 23 - Telnet
- 25 - SMTP (Simple Mail Transfer Protocol)
- 54 - DNS (Domain Name Service)
- 69 - TFTP (Trivial File Transfer Protocol)
- 80 - HTTP (Hypertext Transfer Protocol)
- 110 - POP3 (Post Office Protocol version 3)
- 119 - NTP (Network Time Protocol)
- 143 - IMAP4 (Internet Message Access Protocol version 4)
- 443 - HTTPS (Hypertext Transfer Protocol Secure)
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