Introduction to Ports and Protocols
Ports A port is logical access channel between two device which helps in their communication. A port is used to transfer the data There are total 65535 ports. 1. Well known ports: 0 to 1023 2. Registered Ports: 1024 to 49151 3. Dynamic/Private ports: 49152 to 65535 Some of the useful ports are: Port Name Port Number ftp 21/tcp Ssh 22/tcp telnet 23/tcp Stmp 25/tcp http 80/tcp Kerberos 88/tcp Pop3 110/tcp Imap 143/tcp https 443/tcp Ftps-data 989/tcp Ftps 990/tcp Telnets 992/tcp Imaps 993/tcp Pop3s 995/tcp Ldap 389/tcp Protocols Protocol is simply a set of rules which defines a standard way for exchanging information over a netwo...