| Word |
Description |
| SMTP (Simple Mail Transfer Protocol) |
A text-based protocol, in which one or more recipients of a message are specified along with the message text and possibly other encoded objects. The message is transferred to a remote server. Either an end-user’s email client or a relaying server’s mail transport agents can act as an SMTP client. |
| SSH (Secure Shell) |
Network protocol that allows data to be sent over a secure, encrypted connection to another computer. SSH uses public-key cryptography to authenticate remote computers and allow the remote computer to authenticate users. SSH is generally used to log into remote computers and execute commands, supports tunneling, forwarding arbitrary TCP ports and X11 connections. It can transfer files using SFTP or SCP protocols. By default it listens on standard TCP port 22. |
| SSL (Secure Sockets Layer) |
Cryptographic protocols that provide secure communications on the internet for such things as web browsing, email, internet faxing, instant messaging, and other data transfers. The layer allows applications to communicate across a network in a way designed to prevent eavesdropping, tampering, and message forgery. It provides endpoint authentication and communications privacy over the internet using cryptography. |
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