Dmitry Dovidenko’s Blog

R.I.P SAMSUNG Blackjack II

August 17, 2008 – 3:52 pm
It was eleven in the morning and I was leaving the local "24 hour fitness" after a good workout. I walked down the sweltering parking lot becoming increasingly thirsty. As I tried to open my water bottle I lost grip and the bottle went tumbling down. Being worked up from my exercise I instinctively tried to catch it before it hit the ground. As my sweaty hands fumbled with the bottle the unexpected happened.

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NFS Shares on CentOS

July 5, 2008 – 8:10 pm
Many situations require a "share" of some sort where data is accessible on several machines from a common source. This way data does not have to be duplicated every time and can be accessed over network. The two popular methods are NFS and Samba. For this tutorial we will try to use NFS. Setting up NFS shares on CentOS is fairly easy and mounting them is even simpler!

Posted in Linux, Networking | No Comments »

Installing FFmpeg & Dependencies For FLV Conversion

June 29, 2008 – 11:57 pm
This is my original guide for installing ffmpeg and all of these dependencies. I originally wrote this guide while working for HostGator in order to save myself time installing. I posted a copy of this guide in our company notes which was later copied by one of our employees into his own blog which he failed to credit me for :-( and now it's all over the internet. You should use this guide as it's probably the most up to date as I still use this script on a semi-regular basis and update the links whenever new versions come out. This guide should teach you how to install all the needed dependencies for ClipShare or other flash video conversion scripts. It's primarily focused on RHEL or CentOS installs for the dependencies of these packages. The links in this guide are fresh as of 08/04/2008. Here is what this guide will help ...

Posted in Linux | 5 Comments »

Exim Tips & Tricks - Howto Unclog your queue!

June 29, 2008 – 8:39 pm
This article will focus on some general Exim MTA tips and tricks as well as how to parse mail logs. I originally put this guide together for use with Exim on cPanel. Many cPanel server administrators use the built in Exim MTA without giving it a second thought because it works. It works until they end up providing virtual hosting systems (shared hosting) where some of the users do not update their scripts regularly or simply think setting a cron job that runs every minute and clogs the queue is a good idea. Then running the built in Exim MTA with no knowledge of how it works becomes a disaster! Learn Exim today and save your self some serious headaches!

Posted in E-mail & MTAs | 1 Comment »

Trip to Lake Conroe

June 29, 2008 – 5:30 pm
Last Sunday my friend Sanjin Suljic and I took his 2006 Ford Crown Victoria Police Interceptor (right) for a drive. We left Houston, TX and headed to lake Conroe. It was a fun drive and we got to see some of the towns outside of Houston. We reached and crossed lake Conroe (left) near New Waverly, Texas.

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2008 cPanel Conference

June 29, 2008 – 4:10 am
My employer (AlphaRed) sent Jesse Shanks and myself to the latest cPanel conference. The 2008 cPanel conference was held at the Westin Oaks hotel in "The Galleria Shopping Center". Which is Houston’s number one attraction and is said to be the fourth largest shopping center in North America with over 350 stores! The mall also features an indoor ice rink

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Linksys RVS4000 Hacking - Part I

June 29, 2008 – 2:59 am
Remember when CompUSA went out of business? Well if you don't then you missed a great opportunity to buy cool gear cheap the last few days they were open. I got quite a haul myself and spent less than $400! This includes my Garmin StreetPilot c580 GPS unit and my Linksys RVS4000 which is the main focus of this article. I used this router for a long while before I got into playing with it after hearing about flaws in the Linksys software allowing shell access. Now I'm spending time trying to figure out what cool stuff could be done with it and I'm going to share my knowledge with you! In this first article about hacking the RVS4000 I'll cover how to enable telnet (utelnetd) through the hidden feature in their software. Help you somewhat secure this telnet daemon. I'll also show you a cool flaw in their front-end web ...

Posted in Networking | No Comments »