18Aug 2012 by Asim Zeeshan No Comments

Webalizer not working on Ubuntu

Linux, Tutorials, Ubuntu
One of my Ubuntu based VPS had Webalizer installed to collect stats from webserver but it was not working because I could see not stats at /webalizer/. If thats the case with you try the following 1) Try running the webalizer crontab So we have identified the culprit that geoip-database is not installed. 2) Fix this by installing geoip-database (more…)
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23Apr 2011 by Asim Zeeshan 1 Comment

vzfree utility to check memory usage in OpenVZ VPS

How to, Linux, OpenSource, Resources, Tips and Tricks, Tutorials, Ubuntu, Virtual Private Server
From the official blog post Gee. It has been a while since I’ve last written here, and it will be a while again for my next post as I will be on holidays from next Monday (visiting families in Hong Kong and Taiwan). Let me share one small utility program that I wrote quite a while ago. We all know that the Linux command free(1) is pretty useless inside an OpenVZ VE, even those with meminfo virtualised. So I basically wrote this little util to grab the data from the dreadful user_beancounters and format them into something useful. It’s written in C and only depends on libc so it’s pretty light weight. It also does a little bit of analysis instead of just dumping the data, which I will explain…
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28Mar 2011 by Asim Zeeshan 2 Comments

Find memory consumed by currently running processes on Linux?

CentOS, How to, Linux, OpenSource, Resources, Reviews, Tips and Tricks, Tutorials, Ubuntu, Virtual Private Server
I always had the question (when I am running plenty of scripts on a linux box as to what is eating up all the memory? Finding memory consumed by current running processes in your favorite linux distro. Luckily, I found a great Python utility (scriplet to be exact). (more…)
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16Aug 2010 by Asim Zeeshan 6 Comments

NAGIOS 3 with notifications on twitter

Experiments, How to, Linux, OpenSource, Resources, Social Networking, Tips and Tricks, Tutorials, Virtual Private Server
I have been experimenting with NAGIOS3 on Ubuntu (I will write a how-to-install on NAGIOS later) and it has served me very good in monitoring my 7 VPS from different providers in different part of the world. I have already recorded 3 hours of downtime from ThrustVPS which is a great deal for me. I now know which VPS has the best time and which ones have hiccups (e.g. my 2Host VPS gave me two unreachable notifications but the VPS was running and still reports the uptime as 4 days). Since I use twitter more, even when Im on the road, notifications via email is a bit slow for me. Luckily I found a great tutorial online to do that. (more…)
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23Jul 2010 by Asim Zeeshan 1 Comment

How to install byte-unixBench on Ubuntu

How to, Resources, Tips and Tricks, Tutorials, Ubuntu
From UnixBench project homepage: UnixBench is the original BYTE UNIX benchmark suite, updated and revised by many people over the years. The purpose of UnixBench is to provide a basic indicator of the performance of a Unix-like system; hence, multiple tests are used to test various aspects of the system's performance. These test results are then compared to the scores from a baseline system to produce an index value, which is generally easier to handle than the raw scores. The entire set of index values is then combined to make an overall index for the system. Some very simple graphics tests are included to measure the 2D and 3D graphics performance of the system. Multi-CPU systems are handled. If your system has multiple CPUs, the default behaviour is to run…
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19Jul 2010 by Asim Zeeshan 6 Comments

Installing Lighttpd, PHP and MySQL on Ubuntu

How to, Linux, OpenSource, PHP, Tips and Tricks, Tutorials, Ubuntu, Virtual Private Server
If you are not getting a package on Ubuntu, please check to see if your /etc/apt/sources.list file is updated. This is common with most VPS providers On VPS, especially with challenging small memory limit (e.g. 64MB or 128MB) lighttpd is the best option instead of Apache. In this article I will show you how to do that. On a fresh box (which has no apache installed) type this to get lighttpd webserver installed Now install PHP5 CGI package and PHP5 command line package Edit the following file and uncomment this line Now enable fastcgi module Restart Lighttpd You get the welcome page Lets install MySQL 5.1 server and client and optionally phpMyAdmin Now create a test page to see if phpinfo is all Ok Type in the following
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