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How to test VPS Speed and Performance?

wget -O - -o /dev/null | bash How to Test VPS Download and Upload Speed wget python --share How to Test VPS Disk I/O Performance dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync

How to Clone / Download / Mirror a Website using WGET

This is a quick and dirty way to clone, download or make a mirror of a website for offline reading. We only need WGET. It will download all images, CSS and Javascript files wget --recursive --no-clobber --page-requisites --html-extension --convert-links --restrict-file-names=windows --domains --no-parent By default, wget also has an option to do mirroring.

How to Solve XAMPP Problem Port 80, 443 in use by Skype

I’m trying to start XAMPP Control Panel, but I got these error messages: Port 80 in use by "c:\program files (x86)\skype\phone\skype.exe"! Port 443 in use by "c:\program files (x86)\skype\phone\skype.exe"! The easiest way to solve this XAMPP problem is shutdown your Skype, and restart your XAMPP Control Panel. But that is not a smart solution.

How to Solve ORA-12162: TNS:net service name is incorrectly specified

This morning I try to import an Oracle dump file, but I got this error message: ORA-12162: TNS:net service name is incorrectly specified Some people says that there’s something wrong with the tnsnames.ora file. But I’ve checked it, and the file looks fine. After googling for a while, I found that this error message

How to Solve WARNING clock of the subversion server appears to be out of sync

When I tried to build project from Subversion in Jenkins, I got these error messages: WARNING: clock of the subversion server appears to be out of sync. This can result in inconsistent check out behavior. So, after googling for a while, the easiest solution was add @HEAD at the end of the Repository URL.

Ubuntu 12.04 Can’t Login to Desktop unless using Guest Session

After re-installing my PC using Ubuntu 12.04, I always do sudo apt-get update and sudo apt-get upgrade, so my system is always up to date. But after I do this sudo reboot, I can’t login to my Ubuntu 12.04 desktop. Then I try to login to my PC using PuTTY from my Windows laptop.

How to Extract / Uncompress 7z Files on Ubuntu

I’d like to import a database dump file, but it’s compressed in 7zip format (7z). So I need to extract that 7z file using 7za. 7za is included in p7zip package. First we need to verify whether we have 7za installed or not. whereis 7za If you see something like: 7za: /usr/bin/7za /usr/share/man/man1/7za.1.gz It

How to Setup WordPress Multisite with Subdomain

How many blogs do you have? Have you ever feel bored when it’s time to update wordpress, themes and plugins, because you have to do it one by one? Do you want to have your own blog network, like If yes, then I think you should consider to setup a wordpress multisite. Step

How to Setup a VPS using Debian 6 Linux (32 Bit)

Why do I choose Debian? Well, beside it’s “pretty easy” to setup, I think Debian is more stable than the other linux distros. But why 32 Bit? Because I think 32 Bit OS is using less memory than the 64 Bit. VPS Minimum Security Settings What I do for the first time is add

How to Restart VNC Server Hourly using Crontab

Sometimes I need to restart my VNC server periodically, usually hourly. So I’m gonna need crontab. In some conditions, the killing process of VNC server may still leaves some files on the VNC folder or inside temp folder. So, before we start the VNC server again, we have to make sure that those files