Technology Tutorial Table of Contents

Using OpenSSH SSH (Secure Shell) is a protocol and an application that allows users to connect to remote or local servers on a network over an encrypted channel. This encrypted channel protects the user's data from being seen, changed in transit, or replayed at a later date. These security measures are in response to the "old" method of logging into servers using telnet, where all usernames, passwords, and data are sent in clear text. SSH can do more than allow users to login and use a terminal, SSH can also be used to securely transfer files and forward ports to "tunnel" normally insecure connections over a secure channel to the server.

Setting up SNMP using Net-SNMP: SNMP (Simple Network Management Protocol) is used by network/systems administrators to query and track the status and network devices and system resources. SNMP running on a server or a network device can tell you about disk useage, memory usage, connections, network statistics, etc.

Setting up a DHCP Server A dynamic network requires the ablity to manage IP addresses automatically with little administrator intervention. DHCP servers can manage IP address assignment to hosts on your network and DHCP services can be found on most DSL routers and wireless access points. The problem with these solutions is that they offer very little control and flexablity when and how you need it. This tutorial will show you how to install and configure DHCP on a FreeBSD server and how you can use it to manage your network.

SNAP Server 1100 One of the more adminstrative-intensive tasks when using fileservers for small branch-offices is getting the hardware required and the disk space required all in one managemable chunk. Well, after studing what NAS devices really were all about I had the chance to install one for a local company. Although I've "touched" one of these before I never really understood what they were all about until I had to configure one and hand it off to the general office staff of a small company.