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I had this problem a long time, I found a post I wrote from 2007-10-27.

The symptoms are

1. Pictures displayed from the web server are not complete, only the top part of the picture is displayed, and the rest of the picture is black. This usually happens if the picture is very big (high resolution)
2. Weird javascript problems. Problems occur only if the Javascript is served by the apache web server. The problem can gennerally occur with every static file.

This is the configuration I have:

Apache 2.0.54 on Windows XP Professional SP2
PHP 4.4.4
MySQL 4.1.12

I noticed the problem once when I was making a picture upload. I noticed that when I try to view the uploaded picture I could see only a part of the image, only the top part and never the full image.

This was pretty weird for me at the time, so I tried to see if the same is going to happen on the production server, because that was on my local server. Everything was ok on the production server so I did not bothered to fix the problem because it did not make any difference for me.

After a while I tried to install TinyMCE, a free HTML WYSIWYG editor, version 2.1.2. I run the examples from the desktop folder before uploading them to the local web server, and they were working great. After I saw that the examples were working I wanted to put them in my project and I copied all the files to the htdocs folder on the apache web server.

After I uploaded the files I tried to run the same example scripts but I noticed that they are not working, and that there was an error in firebug.

This is what the error was:

tinyMCE is not defined

tinyMCE.init({

example_advanced…. (line 8 )

function TinyMCE_Engine(){var ua;this.majorVersion=”2″;this.minorVersion=”1.2″;t…

syntax error

if (parent == do

prototype.js (line 4417)

uncaught exception: script.aculo.us requires the Prototype JavaScript framework >= 1.6.0

Object.extend is not a function

}, window.LightboxOptions || {});

lightbox.js (line 63)

missing ) in parenthetical

var tinymce={majorVersion:’3′,minorVersion:’1.0.1′,releaseDate:’2008-06-18′,_ini…

tiny_mce.js (line 1)

tinyMCE is not defined

tinyMCE.init({

skins.html (line 10)

Displaying pictures from http
Dispaying half images

I had a filling that the poblem must be in the php, apache configuration. Maybe something with the encodings, or the file size limitation or something similar. But it had to be with some confuration. So I decided that I have to solve this problem. I started to search the net for any similar cases and I found a post that is not very related to this problem but I decided to try.

I found this post: CSS and Javascript files not showing up when running Apache under Ubuntu on a flash drive? Read on. (Many thanks to the writer for writing the solution)

This guy had some similar problem, not displaying images, javascript files problem, so I thought I would give it a try.

As I found out later from the post apache by default uses a system command from the operating system called sendfile.

This command tries to deliver the static files to the browser, but because I am using Windows XP and it is “Windows operating system”, there must be some problem with it.

So I found out that Apache by default checks if the operating system supports sendfile syscall, and if it does then it uses it from the operating system, and if not it uses his own implementation of the functionality. Aslo I found out that there is a configuration property called EnableSendfile in the http.conf file, the Apache configuration file, which by default is on, which means use operating system function.

I set this configuration property to off, restarted Apache and BINGOOOOOOOOOOOOOO.

Everythig worked.

The pictures were showing up, both versions of the tinyMCE editor were working and the lightbox2 script was working. Finally after more that 9 months the problem is resolved

So if you have similar problems open httpd.conf, find “EnableSendfile” and set it to off like this:
EnableSendfile off

Dont forget to restart Apache after changing the configuration file

The symptoms as I mentioned before are

1. Pictures displayed from the web server are not complete, only the top part of the picture is displayed, and the rest of the picture is black. This usually happens if the picture is very big (high resolution)
2. Weird javascript problems. Problems occur only if the JavaScript is served by the apache web server.
   

More about EnableSendfile can be found here:

http://wiki.apache.org/httpd/SendfileNotImplemented

http://httpd.apache.org/docs/2.0/mod/core.html#enablesendfile

I hope this post will be useful to somebody with similar problems

Thank you

1. Click Start ->Run
2. Type “gpedit.msc” in the run text field
3. Open “Computer Configuration -> Administrative Templates -> System “
4. Find “Turn off AutoPlay”and double click it
5. Click on the “enabled” radio button
6. Select all drives from the drop down list bellow
7. Click “Apply” to apply the changes
8. That’s it, you are done

If you’re running Microsoft Windows you can enable the Internal Speaker or PC speaker by following the below steps.

1. Open Device Manager
2. In Device Manager click View and click “Show hidden devices”
3. This should make “Non-Plug and Play Drivers” visible in Device Manager.
4. Expand Non-Plug and Play Drivers by clicking the plus and double-click Beep.
5. Within the “Beep properties” window click the Driver tab.
6. Under the driver tab if you wish to temporarily enable this device click the Start button. If you wish to permanently enable this device under the Startup Type select System.

NSLOOKUP (Name Server Lookup)

is a command that it is used to query DNS (Domain Name System) servers and is embedded in Windows and Unix operating systems. Although nslookup exists in both UNIX and Windows, there are some differences in the way that it behaves in the two operating systems.

This command can be found in the BIND (Berkeley Internet Name Domain) package, the most commonly used DNS server on the Internet, especially on Unix operating systems.

The nslookup can be used to find various details relating to DNS including IP addresses of a particular computer, MX records for a domain or the NS servers of a domain - all using DNS lookups

The following examples are done on Windows platform.

NSLOOKUP common usage

You can use nslookup command by

• calling it directly or
• entering the nslookup shell

Direct usage of nslookup

In this example I will try to find out the IP address of my domain using the nslookup directly without entering its shell.

In order to do that I will write the following :

C:\>nslookup minanov.com
Server: locac dns server domain name
Address: locac dns server IP Address

Non-authoritative answer:
Name: minanov.com
Address: 64.72.119.195

The first two rows in the command colored with light blue are showing the local network DNS server. This information is not correct.

However the other text bellow non-authoritative answer shows the name of the domain and the IP address of the server.

Using nslookup from it’s shell

Note that nslookup is a command that has a lot of possibilities. By entering in the shell all of this possibilities are available.

To enter the nslookup shell all you have to do is write “nslookup“ on the command prompt. If you want to find out more about all the possibilities just write “?” in the shell and hit enter. All of the available options will be displayed.

C:\>nslookup
>

Note that there is a more modern version of the nslookup command.

The command that will probably replace nslookup is the “dig” program, also embedded in the BIND package. However the dig command is not embedded in Windows operating systems yet. At least not in Windows XP.

Have you ever wanted to hide some of your folders in Windows XP.

If you did and you does’t know how this is a pretty easy way of hiding a folder that most of the basic computer users wont be able to find and see. It is very simple, all you have to do is change the attributes of the folder that you want to hide. You have to make the folder to be hidden and you have to make it to be a system folder. That way the windows will not show it.

Let’s say that we want to hide the folder c:\my_folder

Open the command prompt and write

attrib +h +s c:\my_folder

This means make this folder to be hidden and system folder, and because by default the windows doesn’t show hidden system folders your folder will disappear immediately .

If you want to restore the folder you need to write

attrib -h -s c:\my_folder

and the folder will show.

That’s it.

HINT

If you want Windows to show the hidden system folders by default you have to go to

Folder Options, select the View tab and unselect the “Hide protected operating system files” checkbox.

After you do that you will be able to see all the hidden system files including our hidden folder.

Note that by default this option is disabled.