KrazyWorks » Security

September 4, 2010 – 5:23 pm | One Comment

iTunes for Windows must be one of the buggiest, most poorly written applications out there. In terms of wasted months of your life it definitely ranks up there with Lotus Notes and Media Player 12. I don’t know how well iTunes works on a Mac (I like computer mice with twenty buttons, so I never was a big Mac fan), but I think I read somewhere that iTunes for Windows is the leading cause of suicides among iPhone owners.

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Networking

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Applications

Reviews of latest Unix and Linux software. Helpful tips for application support admins. Automating application support.

Data

Disk partitioning, filesystems, directories, and files. Volume management, logical volumes, HA filesystems. Backups and disaster recovery.

Monitoring

Distributed server monitoring. Server performance and capacity planning. Monitoring applications, network status and user activity.

Commands and Shells

Cool Unix shell commands and options. Command-line tools and application. Things every Unix sysadmin needs to know.

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Articles in Security

Linksys WAP54G Secure Configuration

June 11, 2008 – 1:09 pm | No Comment

Below are some basic steps to secure a wireless access point (WAP). The screenshots are for Linksys WAP54G v. 3.04, however, the same steps will apply to wireless access points from other manufacturers. Understand this: …

Distributed password cracking with Medussa

May 10, 2006 – 2:43 pm | No Comment

Medussa is a password cracking application that supports distributed processing. One node acts as the Medussa server and the rest of the nodes are running the client application. The server node, in addition to running …

Protected: Notes on Electronic Security

February 7, 2006 – 12:05 pm | Enter your password to view comments.

There is no excerpt because this is a protected post.

Applications »

WordPress 3.0 and 3.0.1 Upgrade Bug

Ignoring my own advice to never install latest WordPress releases as soon as they come out, I upgraded my installation to WP 3.0 and shortly after to 3.0.1. Doing so broke a few things. Automatic …

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Commands and Shells »

Modifying Solaris Services

Recently I ran into an issue: the sshd service on a Solaris 10 box needed to be used with a custom configuration file. By default, the sshd service will use /etc/ssh/sshd_config. I needed it to use /etc/ssh/sshd_config_custom. I could not just modify the default configuration file. Don’t ask why – it’s complicated. So here’s what I ended up doing and this process is applicable to modifying any other Solaris 10 (and above) service.

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Data »

NFS “Not Owner” Error

The “not owner” error is displayed on the client system (usually Solaris) when attempting to mount an NFS share from a server. This error may appear even though the share is correctly exported and the client system has full access. If you are getting a “permission denied” error, then this article is not for you and you should check here instead.

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Hardware »

iPhone 3GS OS4 Upgrade

iTunes for Windows must be one of the buggiest, most poorly written applications out there. In terms of wasted months of your life it definitely ranks up there with Lotus Notes and Media Player 12. I don’t know how well iTunes works on a Mac (I like computer mice with twenty buttons, so I never was a big Mac fan), but I think I read somewhere that iTunes for Windows is the leading cause of suicides among iPhone owners.

More articles »

Monitoring »

Server and Network Monitoring with iPhone

What is a Unix sysadmin doing with an iPhone, you ask? It was a birthday present, if that’s all right with you. I know, I should have gotten something odd with a beta version of …

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Networking »

NFS “Not Owner” Error

The “not owner” error is displayed on the client system (usually Solaris) when attempting to mount an NFS share from a server. This error may appear even though the share is correctly exported and the client system has full access. If you are getting a “permission denied” error, then this article is not for you and you should check here instead.

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Scripts »

Windows Network Troubleshooting Script

I try my best to stay away from Windows. I wish my clients did the same. The usual difficulty of troubleshooting elusive network performance problems is amplified many-fold when there is a Windows computer at the end of the line. With Unix it’s relatively simple: run tests “a”, “b”, “c”, etc and follow the familiar process of elimination. With Windows in the picture the number of steps uses up all of the English alphabet and spills over well into the Russian one. And when you finally reach step “я”, you have to pull out your Chinese dictionary.

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Scientists Cut Greenland Ice Loss Estimate By Half
bonch writes "A new study on Greenland's and West Antarctica's rate of ice loss halves the estimate of ice loss. Published in the journal Nature Geoscience, the study takes into account a rebounding of the Earth's crust called glacial isostatic adjustment, a continuing rise of the crust after being smashed under the weight of the Ice Age. […]
DARPA Wants Extreme Wireless Interference Buster
coondoggie writes "This month the Defense Advanced Research Projects Agency will begin looking for technology that will let wireless communications work through the most extreme interference. From the article: 'The CommEx program will assess next generation and beyond jamming threats and then develop advanced interference suppression and avoidance […]
Film Industry Hires Cyber Hitmen To Take Down Pirates
thelostagency writes "Girish Kumar, managing director of Aiplex Software says his company is being hired by the film industry to attack online pirates. He says if a provider did not do anything to remove the link or content hosted on its site, his company would launch what is known as a denial-of-service (DoS) attack on the offending computer server. Fr […]

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OS    :	Red Hat 3.4.6-11
Kernel:	Linux 2.6.32.19-grsec
Arch  :	32-bit OS running on 64-bit hardware 
CPU(s):	8 x 4-core Intel Xeon CPU E5420@ 2.50GHz
RAM   :	8Gb (90% used), 16 x 512Kb DIMMs
Swap  :	6Gb (1% used), paging in/out: 0/0
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CPU % :	32 CPU cores at 11% combined utilization
Disk  :	util, svc time - sda: 15.88%, 2.10ms; 
Apps  :	MySQL 5.0.91, Perl 5.8.8
Issues:	occasional RAM shortages