Changes

<td>'''22'''</td><td>'''SSH'''<td>'''Secure Shell''' - The Secure Shell is used to provide a secure, encypted, remote logon session to a remote host over a TCP/IP network. The original mechanism for remote access was the Telnet protocol. Because Telnet transmits data in plain text its use is now strongly discouraged in favor of the secure shell, which encrypts all communications, including log-in and password credentials. SSH also provides the mechanism by which files can be security tranfered securely trandferred using the Secure Copy Protocol (''SCP'') , and is also the basis for the Secure File Transfer Protocol (''SFTP''). SSH also now replaces both the ''rsh'' and ''rlogin'' clients.</td>

<td>'''69'''<td>'''TFTP'''<td>'''Trivial File TransferProtocol''' - TFTP is a strpped down version of the File Transfer Protocol (FTP). It has a reduced command-set and lacks authentication. The most significant featire feature of TFTP is that it uses UDP to transfer data. This results in extremely fast transfer speeds but , consequently , lacks data reliability. TFTP is typically used in network based booting for diskless workstations.</td>