Tech geek. Life geek.
LILO (Linux Loader) and GRUB (GRand Unified Bootloader) are both configured as a primary boot loader (installed on the MBR) or secondary boot loader (installed onto a bootable partition). First question, what is a boot loader. The simple answer: a...
There are three types of files need to untar. One is normal tar file, second is gzip compressed, the last one is bzip2 compressed. Here is the commend to untar these files as below.
The task is to delete files from the folder and sub-folders, maybe sub-sub-folder. Say I want to delete .htaccess from every folder, but keep all others no-touch. It is hard to go into each folder and delete the file. It...
Because I use Burst.net as my VPS provider. When I re-build the OS yesterday, I saw Centos 6 template, just beside Centos 5.5 and 5.0. How is that? Centos 6 is Released? I went to Centos official site. Saw the...
I have a MySQL database. There is one table has thousands rows of data. I need to add one string to every rows of one column. It is a very popular scenario. Looks like in the middle of using one...
Some times you need to find out what version is your Linux OS. Just like when I need to download a module, I have to find out which one is right for my OS. Then I can download 32bit, or...
To transfer the the large mySQL database, you need to learn how to use command to do it. Large, means the database is bigger than 8 MB after compressing. phpmyadmin, is a wonderful web tool for mySQL. But the limitation...
It is not that easy for a newbie to make a workable VPS by himself. I have three year experience on VPS. I can make it as simple as possible to show you how to do it in three steps....
I have a website, which allow user to upload large file. Such as 200MB flv file through WEB interface. This kind of upload is not use FTP, not the regular php upload function, or get, post form function. The large...
I want a shell script to run 50 times. So I google it and got the answer. I put it here as a notes. The script is for bash shell.
Playing my Centos Server 5.5 on VirtualBox. I can not install flash player on Firefox. By Google it, answer is following. Installing the flash player on centos/redhat linux seems to be very difficult sometimes. But the installation is quite simple...
I am not sure, what is the problem. When I install the mod_pagespeed on my Centos VPS, it make the Apache crushed. It ate a lot of memory, until over the memory limit. I have to restart the VPS. Just...
Google released a new product, mod_pagespeed. It is a mod for Apache web server. mod_pagespeed is an open-source Apache module that automatically optimizes web pages and resources on them. It does this by rewriting the resources using filters that implement...
It is Automatic Black-List with PAM module, which can help you to protect SSH server. I have Centos 5.5 linux server on Butstnet. From log file, I saw a lot of fail login on my SSH server every day. To...
I have an website which is hosted on Dreamhost. I has a script to convert video from any formats to flv file, which can be played as flash video. When I look at the error which made is shown as...