. , - . , , (SSH, SSL, S/MIME, SOCKS .).
, , , TCP, - ( ) . , ( " , "). :
- HTTP, SHTTP, HTTPS, Gopher;
- FTP;
- SMTP, POP3, IMAP, NNTP;
- Telnet, rlogin, rsh, rexec, RPC, XWindow;
- NFS, NetBEUI;
- DNS;
"" - SSH, SSL, S/MIME, SOCKS.
, . , FTP "put" - . .
"" , (.. ). - "" ( ) , "" ( - VPN).
- , ( -) "" , .
, - - ( - URL), .. . . , . , ( ).
( ) :
- ;
-;
, "" ;
;
;
;
.
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