By rex, 10 June, 2010

Howto duplicate (clone) VirtualBox image in Windows 7

1. klick on windows icon and write 'cmd' and press ENTER to open a terminal in windows.

2. change to VirtualBox directory
cd C:\Program Files\Sun\VirtualBox

3. run VBoxManage.exe


C:\Program Files\Sun\VirtualBox>VBoxManage.exe clonehd "D:\vm\WinXP.vdi" "D:\vm\WinXp-clone.vdi"

Sun VirtualBox Command Line Management Interface Version 3.1.8
(C) 2005-2010 Sun Microsystems, Inc.
All rights reserved.

0%...10%...20%...30%...40%...50%...60%...70%...80%...90%...100%
Clone hard disk created in format 'VDI'. UUID: 609c2e84-981c-4e73-b32b-dd7fbc5ee
4c7

By Anonymous (not verified), 31 May, 2010

php

using this code we can resize the image by height , width and both but i want get the out put like when we use constrain proportions in photo shop because when i resize using this code the image looks like stretched or compressed is it possible to write code to get the image without stressing or compressing?

if(isset($_POST['Submit']))
{
$a=$_REQUEST['aaa'];
//error_reporting(0);
include "db.php";
$current_image=$_FILES['image']['name'];
$extension = substr(strrchr($current_image, '.'), 1);

By rex, 30 May, 2010

Howto log slow MySQL Queries in Debian

Sometimes MySQL use a lot of CPU and its really slow.
If you want to log the queries just comment out following lines in '/etc/mysql/my.cnf'

# Here you can see queries with especially long duration
log_slow_queries = /var/log/mysql/mysql-slow.log
long_query_time = 10

If a query need more then 10 seconds to get executed mysql will log it in '/var/log/mysql/mysql-slow.log'

By Anonymous (not verified), 14 May, 2010

The expectation given in the Expect request-header field could not be met by this server

As I wanted to create a profile photo I got this error from Twitter:

Expectation Failed

The expectation given in the Expect request-header field could not be met by this server.

The client sent
Expect: 100-continue
but we only allow the 100-continue expectation.

By Anonymous (not verified), 11 May, 2010

Hourly price of web & graphic designers and programmers

It is not easy to calculate last price for a website. Because it depend on many factors. Here I will try to give a simple line.

Small websites up 10 pages

1x home page : 200$
5x sub pages : 400$
1x flash animation/intro : 200$
1x web contact form with captcha protection: 150$

Middle to Big Websites with CMS

Drupal installation and customization : 800$
Joomla installation and customization : 500$
Wordpress installation and customization : 500$
phpBB/Phorum/Smf installation and customization : 250$
vbulletin installation and customization : 400$

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