May 19th, 2011
When you publish a new content on your blog, you need to notify Update service sites that your blog has new and fresh content available. At first it may sound a bit complicated process to set-up, but it’s easily done with WordPress built-in feature called “Update services”. A lot of folks refer to it as “blog ping” service.
So why do you need to notify these blog update service sites about fresh content?
To get more feed readers, web visitors and increase your blog popularity. Many folks have signed up with these Update services sites and are automatically receiving notifications… Read the rest of this entry »
May 15th, 2011
In a world full of hustle and bustle it is not hard to see why sometimes we struggle in life. In recent years the pace of our world has increased ten fold, with cities that never sleep, ever increasing work hours and often 2nd jobs or extra studying it can sometimes feel like we never get a single moment to ourselves.
Maybe you feel like you are working hard towards an unachievable goal. Are you working long hours towards a promotion that you are not even sure you will achieve? Maybe your boss has asked you to put in the… Read the rest of this entry »
May 10th, 2011
We all know that large file download takes extra time for web visitors and increases bandwidth bill for your blog or web site. It’s imperative to keep down the image size and offer large image thumbnails in-preview mode rather than calling image directly with IMG SRC tag. Let’s do some simple bandwidth and load time calculation with a large image and much smaller thumbnail image.
Web visitor count: 50.000
Thumbnail image: 64KB
Large image: 640KB
Visitor with low speed connection: 256Kbps (download speed)
Visitor with fast speed connection: 2Mbps (download speed)
If all 50,000 visitors will… Read the rest of this entry »
May 8th, 2011
LAMP stands for Linux, Apache, MySQL and PHP. Over at least 5 years I’ve been using LAMP and LNAMP (Linux, Nginx, Apache, MySQL and PHP) powered web servers to serve high bandwidth sites on simple commodity servers you can rent starting just from $30 per month.
My first choice of Linux server OS is Centos – a white hat clone from Redhat :) It’s free, easy to administer, fast to configure and not complex to keep up running. OS patches are also released fast and combined together with packet filters and other security software it does provide adequate security as… Read the rest of this entry »
May 6th, 2011
If you Fiber Channel storage is slow you may experience the following error while performing live disk vMotion migration from one LUN to another:
A general system error occurred: Source detected that destination failed to resume
Default values for disk settings in Vmware Vsphere ESXi server console are:
disk.delayonbusy 400
disk.resetlatency 1000
disk.maxresetlatency 2000
You may want to increase these values to:
disk.delayonbusy 1000
disk.resetlatency 2000
disk.maxresetlatency 4000
And perform a LIVE disk migration from one LUN to another and see if you are experiencing timeouts…
May 6th, 2011
Every individual gets through happiness and sorrows from time to time. While the moments turn tough, everyone first looks ahead for emotional support and pat-up. Self Motivation is the basic key to achieve stupendous success in every phase of living. Though success is described as something ultimately different to individuals, and it is relatively personal, the objective of the goal will be achieved only if the person is self motivated. For every realistic sense of efforts, motivation is the absolute key for success. Self motivation brings accolades to your hard work and moreover it moulds you better towards the way… Read the rest of this entry »
May 5th, 2011
When people are asked if they wish to be wealthy, the answer is always an affirmative. However, making a fortune is not as easy as answering a question. It requires very ardent efforts and commitment, not to mention the sacrifices you have to make to realize your ambitions.
Everybody can be a rich man, but you have to believe that there is something within you that can make you wealthy. Many rich men were not born rich, and some even had to go through very trying circumstances before they realize their dreams, and you are in no worse situation than… Read the rest of this entry »
March 27th, 2011
If you are getting the following error when you are installing memcached from the source:
checking build system type… Invalid configuration `x86_64-unknown-linux-’: machine `x86_64-unknown-linux’ not recognized
configure: error: /bin/sh ./config.sub x86_64-unknown-linux- failed
the problem is that you probably do not have a C compiler available on the system. Please check the server config and make sure you install C compiler with all the required rpms.
January 24th, 2011
Before you try to install LUA on Centos Linux, make sure you have already installed the following development packages:
ncurses-devel
readline-devel
or you may experience the following errors while running “make linux”
/usr/bin/ld: cannot find -lncurses
gcc -O2 -Wall -DLUA_USE_LINUX -c -o lua.o lua.c
In file included from lua.h:16,
from lua.c:15:
luaconf.h:275:31: error: readline/readline.h: No such file or directory
luaconf.h:276:30: error: readline/history.h: No such file or directory
lua.c: In function ā€pushlineā€™:
lua.c:182: warning: implicit declaration of function ā€readlineā€™
lua.c:182: warning: assignment makes pointer from integer without a cast
lua.c: In function
… Read the rest of this entry »
January 2nd, 2011
Perlbal can process hundreds of millions of hits daily on a medium hardware server. No wonder it’s used on high load sites like Vox and LiveJournal.
It offers load distribution to multiple back-end servers and different load balancing algorithms that will mostly suit all web site needs. We will be testing this proxy software and compare how does it perform comparing to nginx.
Perlbal web site URL: http://www.danga.com/perlbal/
