Month: July 2010

Linux: Subnet (CIDR) Calculator

From cyberciti.biz I’m new to networking and need help with network settings. I’m looking for a tool for calculating available host address ranges with CIDR using Linux command prompt. How do I use subnet calculator under Linux or UNIX? Linux comes with various IP subnet calculator that will help you with network settings. Once such…


SSH Tricks

From diogomelo.net SSH is a powerful tool that allow you to remotely operate another machine. Here you’ll find some tips about SSH. Basic Usage The most typical usage of SSH is something like this: ssh dmelo@merov Where dmelo is the user name and merov [1] the name of the host being accessed. When run this…


Installing LiquidSoap on CentOS5

From djlab.com So I spend nearly half of an otherwise productive day fighting dependency hell with LiquidSoap. I haven’t tested it yet but here’s a cleaned up and organized command history of how it happened: ## Liquid soap install cd /usr/src rpm -Uhv http://apt.sw.be/redhat/el5/en/x86_64/rpmforge/RPMS//rpmforge-release-0.3.6-1.el5.rf.x86_64.rpm yum install automake pkgconfig ncurses ncurses-devel ocaml ocaml-camlp4 ocaml-labltk libtheora libtheora-devel…


Cpanel/Exim ‘535 Incorrect authentication data’ error

From djlab.com So this issue has been plaguing some customers ever since I started migrating sites from older Ensim boxes to new Cpanel servers. It seems 50% of the email users (or more, haven’t heard from everyone yet) is getting authentication errors on their outbound mail – even in Webmail. So the first solution I’ve…


Migrating from Rackspace Cloud to Cpanel

From djlab.com Fed up with cloud hosting? You’re not alone. Just recently, I assisted a mass exodus of over 50 mysql/joomla based sites. After the migration to just a modest dedicated server with Cpanel, MySQL queries improved by 200% on average. Some longer queries and page loading times saw improvement of over 1000%. Additionally, the…


Monitoring bandwidth usage using vnstat

From webhostingwalk.com vnStat is a console-based network traffic monitor. It keeps a log of hourly, daily and monthly network traffic for the selected interface(s). However, it isn’t a packet sniffer. The traffic information is analyzed from the proc(5) and sys filesystems depending on availability. That way vnStat can be used even without root permissions on…


Terminator 0.94 adds updated plugins

From webupd8.org Terminator is a terminal emulator which supports multiple terminals in one window that you can arrange in whatever way you want. Besides the grid, Terminator also supports tabs and comes with many useful features. Terminator 0.94 which was released today got a really new cool plugin called “watch terminals for activity” which displays…


6 CLI Tools to monitor linux performance

From testingreflections.com So you need to monitor a Linux system for performance metrics… CPU, Memory, Network, Disk, etc. Here are 6 of my favorite command line tools for monitoring a Linux system from the command line. read more here…


20 free sites to monitor uptime

From technologytosoftware.com Sitting 24×7 hours before computer system to monitor site uptime is kind stressful. We can’t keep our eye balls every time on computer screen to check whether your Website is up or down. Hearing even a most reliable web hosting server with 99.99% uptime for a Website, every now and then it happens…


Build your own *buntu distro with Novo Builder

From maketecheasier.com There are many reasons why people want to create their own linux distro. It could be that they are not satisfied with all the existing distros out there and wanted to build one that can fulfill their needs, or they just want to try out something new and show off their “geekiness”. Whatever…