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The News: Ruby on Rails performance is dominated by garbage collection. We present a set of patches to greatly improve Rails performance and show how to profile memory usage to get further performance gains.

What’s at Stake: Rails is slow for many uses and did not lend itself well to optimization. Significant performance gains could only [...]

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KeePassX - The Official KeePassX Homepage
KeePassX saves many different information e.g. user names, passwords, urls, attachmets and comments in one single database.
Yesterday I got around to installing KeePassX on my Centos server. The rpm version worked fine but I had to manually create a menu item. For fun I downloaded the new versions of the [...]

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One of the annoying things about maintaining CENTOS installations is performing system maintenance as the super user from the command line. Don’t get me wrong but I was programming before graphical interfaces(BGI). The command line is a good and trusty way to perform maintenance. As long as everything works you can get by with a [...]

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Since I had recently setup my laptop with C++ version of Visual Studio 8 Express, I was curious about setting up a similar IDE environment on Linux. I initially tried to set up Anjuta DevStudio and I failed miserably. I am running CentOS 5.1. There does not appear to be a recent RPM of Anjuta. [...]

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I do have a problem putting things down. Yesterday I wrote a post about updating to the latest version of GroundWork Monitor Open Source and the problem I had with resolving three service checks, local_mysql_database_nopw, local_process_gw_feeders, and local_process_snmptt. Today I fixed them and here’s what I did:

To resolve the local_mysql_database_nopw alert I went to Nagios [...]

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GroundWork Monitor Open Source 5.1
A complete availability monitoring solution that ensures IT infrastructure uptime while identifying issues before they become real problems. Unifies best-of-breed open source tools - Nagios, Nmap, SNMP TT, PHP, Apache, MySQL and more — through PHP/AJAX-based components and an integrated user interface to deliver the extensible functionality you require.

GroundWork Monitor [...]

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My plan was to create a subversion repository on a Linux box(CentOS) to support the configuration files I use with a virtual machine running Groundwork Open Source. This took much longer than I expected. This procedure was more complicated than usual since the latest version of CentOS requires you to create a self-signed certificate the [...]

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If you get the following error message:
/usr/lib/vmware-player/bin/vmplayer: /usr/lib/vmware-player/lib/libpng12.so.0/libpng12.so.0: no version information available (required by /usr/lib/libcairo.so.2)
Apply the following fix
mv /usr/lib/vmware/lib/libpng12.so.0/libpng12.so.0 /usr/lib/vmware/lib/libpng12.so.0/libpng12.so.0.disabledln -sf /usr/lib/libpng12.so.0 /usr/lib/vmware/lib/libpng12.so.0/libpng12.so.0mv /usr/lib/vmware/lib/libgcc_s.so.1/libgcc_s.so.1 /usr/lib/vmware/lib/libgcc_s.so.1/libgcc_s.so.1.disabledln -sf /lib/libgcc_s.so.1 /usr/lib/vmware/lib/libgcc_s.so.1/libgcc_s.so.1

Obay Home » Blog Archive » Installing VMWare Player on Ubuntu
Yup, this works for Centos 5. I upgraded to Server 1.04 today and had to go back [...]

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The Joe writes:
The install goes great, but when I run the server I get the following error:/usr/lib/vmware/bin/vmware: /usr/lib/vmware/lib/libpng12.so.0/libpng12.so.0: no version information available (required by /usr/lib/libcairo.so.2)
As far as I can tell, the libpng12.so.0 that gets installed to the /usr/lib/vmware/lib/libpng12.so.0 directory is the wrong version, your system should have a current version installed. To fix [...]

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I finally got motivated to resuscitate my Ghettobox2006. It took me a little debugging but I finally got it to recognize my SATA drive. My plan was to use this box as a general purpose Linux box running several VMware guests. The problem was that I could not get the box to boot. This was [...]

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Data sheets for hard drives have always included a specification for reliability expressed in hours: commonly known as MTBF (mean time between failures), or sometimes the mean time to failure. Same difference: One way assumes that a drive will be fixed, and the other, replaced. Nowadays, this number is around a million hours for an [...]

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Accessing Windows Or Samba Shares Using AutoFS
You already installed Linux on your networked desktop PC and now you want to work with files stored on some other PCs in your network. This is where autofs comes into play. This tutorial shows how to configure autofs to use CIFS to access Windows or Samba shares from [...]

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Set Up Ubuntu-Server 6.10 As A Firewall/Gateway For Your Small Business Environment
This tutorial shows how to set up a Ubuntu 6.10 server (”Edgy Eft”) as a firewall and gateway for small/medium networks. The article covers the installation/configuration of services such as Shorewall, NAT, caching nameserver, DHCP server, VPN server, Webmin, munin, Apache, Squirrelmail, Postfix, [...]

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VMware Delivers Free VMware Server
I have become a fan of VMware. I have used VirtualPC in the past but became interested in their products when they offered VMPlayer for free. When they offered free usage of the server product and encouraged the VMTN appliance community, I switched.
My use has generally been in two areas:

Testing new [...]

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Helix - Incident Response & Computer Forensics Live CD by e-fense™, Inc.
I was researching the Linux command, dd, and GParted because I wanted to migrate some data on old disk drives to my new disk drive and to see if I could copy a drive and debug a hardware/software problem on a PC I am [...]

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Excellent point brought up in the comments section today by Josh:

For example, Microsoft wants to argue about stability vs. Linux. In nearly all Linux servers we manage that comparison is laughable. Now, compare RPC-over-HTTP functionality with Linux? You can’t, no such thing on Linux! Where is that among the facts?

This is something that I’ve tried [...]

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Learn the DD command - LinuxQuestions.org
This is a great resource for understanding the dd command. I am keeping this link for reference.

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Right on schedule, Ubuntu 6.06, a distribution with long term support features, has been released: “Ubuntu, which has become one of the world’s most popular Linux distributions in recent years, launched its latest version on June 1 following months of intense testing. The new release is titled Ubuntu….

[Via DistroWatch.com News]
Yup! I downloaded this puppy. I [...]

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Ophcrack 2 — The fastest Windows password cracker
The Ophcrack LiveCD is a bootable Linux CD-ROM containing ophcrack 2.2 and a set of tables (SSTIC04-10k). It allows for testing the strength of passwords on a Windows machine without having to install anything on it. Just put it into the CD-ROM drive, reboot and it will try [...]

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Linux NTFS Project
I had previously seen this program in other distributions so I am still somewhat surprised it is not included in Fedora. It works although I use it primarily for browsing.

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