Essential VMware Appliances to have in your Enterprise
On Mar 4, 2012 at 8:26 PM EST By Tracey Flanders (0) comments
With virtualization in most datacenters these days you no doubt run VMware in some capacity. Here are a few links to some essential VMware appliances that make administration of your environment easier. VMware Appliances for VMware vSphere 4. » more
Bash scripts to help manage your Hadoop cluster
On Jan 25, 2012 at 7:34 PM EST By Tracey Flanders (0) comments
When deploying hadoop in your environment its helpful to have scripts to do the work of copying configs around the cluster. Or some that add functionality to your hadoop configuration. For referenece I am using version 0. » more
How to maintain logfiles on a Hadoop server
On Jan 22, 2012 at 12:37 PM EST By Tracey Flanders (0) comments
If you have ever administered hadoop systems you may have soon realized that log files can become a disk space issue. I ended up created simple crontab jobs that will run nightly to compress and or delete old logfiles. If the hadoop logs are in /opt/hadoop/logs then we can run the below command. » more
How to create a MySQL database and user account for your LAMP application
On Jan 22, 2012 at 10:30 AM EST By Tracey Flanders (0) comments
This is not something I do everyday so I made up some hopefully useful instructions. These are steps I have seen used all over tutorials. Ok lets get started. » more
How to remove older linux kernel packages from Ubuntu
On Aug 6, 2011 at 12:41 PM EDT By Tracey Flanders (0) comments
I've ran into issues with small /boot partitions filling up with old kernel images on ubuntu. Doing a quick search on google return results to use the gui package manager, synaptic. Most of my servers do not run gui's, so here's where some more digging was needed. » more
Cisco IPSEC Tunnel Troubleshooting
On Apr 22, 2011 at 11:15 AM EDT By Tracey Flanders (0) comments
Use this to clear an IPSEC tunnel that isn't working right. A Pix firewall I worked on use to puke when adding more subnets to an ipsec tunnel. Sometimes you need to do this on both sides. » more