SysAdmin

Hack and / - Linux Troubleshooting, Part III: Remote Networks

The Internet is down. Or, is it? Read more to find out how to know for sure. more>>
Squid-deb-proxy won't eat your submarine.

Presenting squid-deb-proxy! Speed up your update downloads!

Are you like me and have multiple Ubuntu machines under one roof? Are you tired of downloading the same update multiple times? Sick of what seems to be duplicate work? Let me introduce you to my little friend... squid-deb-proxy. more>>

TurnKey Linux

Ever wanted to instantly have Drupal, Moodle, OTRS, MySQL, WordPress, Zimbra, Bugzilla, phpBB or a slew of other open source software packages up an running in a hassle-free manner to try out or available for rapid deployment? TurnKey Linux gives you just that. more>>

Use SSH to Cross a Suspect Host Securely

SSH tunnels can be used to connect securely to a server behind a firewall in such a way that the firewall can't observe the data. This is also true and useful if you know an attacker has gained control of the firewall. more>>

AlienVault: the Future of Security Information Management

Meet AlienVault OSSIM, a complex security system designed to make your life simpler. more>>

Taming the Beast

The right plan can determine the difference between a large-scale system administration nightmare and a good night's sleep for you and your sysadmin team. more>>

Hack and / - Linux Troubleshooting, Part I: High Load

What do you do when you get an alert that your system load is high? Tracking down the cause of high load just takes some time, some experience and a few Linux tools. more>>

Point/Counterpoint - /opt vs. /usr/local

Should a sysadmin put additional software in /usr/local or /opt? Bill and Kyle argue the one true location for third-party software. more>>

Hack and / - Linux Troubleshooting, Part II: Local Network

Last month, I discussed localhost troubleshooting, and this month, I extend troubleshooting to your local network. Find out why shawn can't talk to bill. more>>

Storage Cluster: A Challenge to LJ Staff and Readers

For a few years I have been trying to create a "distributed cluster storage system" (see below) on standard Linux hardware. I have been unsuccessful. I have looked into buying one and they do exist, but are so expensive I can't afford one. They also are designed for much larger enterprises and have tons of features I don't want or need. I am hoping the Linux community can help me create this low cost "distributed cluster storage system" which I think other small businesses could use. Please help me solve this so we can publish the solution to the open source community. more>>

Using an SMS Server to Provide a Robust Alerting Service for Nagios

I’m a big fan of the Nagios network monitoring system and rely on it to tell me if something goes wrong with the systems for which I am responsible. I have made a large investment in time configuring Nagios to monitor exactly what I am interested in, and this effort would be wasted if Nagios detected a problem, but failed to communicate that problem to me. more>>

SNMP Monitoring with Nagios

Using Nagios, you can monitor Dell servers with SNMP via Dell's server administration tools. more>>

OpenFiler: an Open-Source Network Storage Appliance

Turn that old computer into a network appliance with OpenFiler, an open-source alternative to a NetApp filer. more>>
Relationships between Zones and VMs

Solaris-Zones: Linux IT Marbles Get a New Bag

Solaris-Zones provides the ability to run Linux and Solaris on the same machine without all the overhead of full virtualization. more>>
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