Karatas, FERHAT
I would love to change the world, but they won't give me the source code!
No buffer space available Fix
29.08.2009 12:08:04 - Filed under : C# | Asp.net | Misc | SQL
Error : An operation on a socket could not be performed because the system lacked sufficient buffer space or because a queue was full xxxx.xxxx.xxxx:80

Solution 1 :

I think I've found a reason for it: My anti-virus scanner, NOD32 v2.51.12 x64, with enabled HTTP scanning. If the HTTP scanning on port 80,8080,3128 and "Auto Detect HTTP communication on other ports" is enabled, both versions will crash. After I disabled the IMON (Internet Monitor) and EMON (MS Outlook E-Mail Monitor) features in NOD32 everything seems to work fine.

Solution 2 :

Editting the registry is not for beginners, if you don't know what you're doing I suggest you don't try this, basically it's use at your own risk. Anytime you want to edit the registry it is a good idea to back it up first..

If you are using Windows 95/98/Me follow these steps:

First step is to launch the registry editor. To do this go to Start, Run and type regedit. In the left pane navigate to HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\VxD\MSTCP once there, look for an entry called MaxConnections. If it exists highlight it by clicking it and then right click it and select modify. Increase the value (recommended value is to double the current value).

If the MaxConnections entry does not exist you must create it. To do this, right click in the right pane and choose new from the menu and select String Value. Give it the name MaxConnections. Then right click it and select modify and enter a value of 800.

Restart your computer, if all goes well then you fixed the problem, if not, revert the changes by restoring the registry. (You may have to reboot to safe mode to do this).

If you are running Windows NT/2000/XP follow these steps:
First step is to launch the registry editor. To do this go to Start, Run and type regedit. In the left pane navigate to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters once there, you must create the entry TcpNumConnections. To do this, right click in the right pane and choose new from the menu and select DWORD Value. Give it the name TcpNumConnections. Then right click it and select modify and enter a value of 800.

Restart your computer, if all goes well then you fixed the problem, if not, revert the changes by restoring the registry. (You may have to reboot to safe mode to do this).

Consideration :

TIP 1 : I have seen NOD32 cause WSAENOBUFS (10055) on many systems. They seem to do something which lowers the resources available to networking applications.
TIP 2 : Problem is caused by a recent windows patch.  If you remove patch KB948609 the client side deserialization will except large datasets again.
TIP 3 : If an application performs many network connections simultaneously or within a short window of time, the application developer might need to increase this number and reduce the TcpTimedWaitDelay value to avoid receiving a WSAENOBUFS (10055) error: "An operation on a socket could not be performed because the system lacked sufficient buffer space or because a queue was full." (http://msdn.microsoft.com/en-us/library/ms819739.aspx)


Keywords : WSAENOBUFS, 10055
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Activate current link in master page
14.07.2009 13:21:42 - Filed under : Asp.net | CSS
Step 1 :
<ul>
<li id="<%=current("/Index.aspx,/Contact.aspx") %>">
<a href="/Public/CustomerCare/Index.aspx"><span>Customer</span></a></li>
<li id="<%=current("/Contact.aspx") %>">
<a href="/Public/CustomerCare/Contact.aspx"><span>İletişim</span></a></li>
</ul>

Step 2 :
protected string current(string currentpage)
{
   // activate current link
   string pname = Request.ServerVariables["SCRIPT_NAME"];

   string result = pname.Substring(pname.LastIndexOf("/"), pname.Length - pname.LastIndexOf("/"));

   if (currentpage.IndexOf(result)>=0)
   {
     result = "current";
   }
  
   return result;
}

Keywords : CSS, activate current page, asp.net
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Sorenson Squeeze for reducing .flv files
27.06.2009 22:32:09 - Filed under : Asp.net | Misc
For starters, Sorenson Media has been the global leader in video encoding and compression technology for nearly a decade and a half.

What does that mean? It means that every day thousands of people rely on Sorenson Media for all their video encoding, publishing and delivery needs. So then the question becomes: Why wouldn't you?

When quality counts, turn to the company you can trust, turn to Sorenson Media.

Raw, uncompressed video is a huge beast. Traditionally, getting it online meant sending any large, foreboding video to the unknown server in the sky so they can encode and deliver to you when they got around to it. This takes up resources, bandwidth and most importantly time. Oh yeah, and it can cost a lot of money.

Utilizing Sorenson's desktop and web-based applications you can compress that video down to a manageable size, upload it to the web and publish to your site in a matter of minutes.

This is my experience steps for reducing size of flv file :

- Get .flv file with "Import File"
- Select "Format Sort" in "Audience presents"
- Select "Adobe Flash Video (.flv)" at line third
- You can choose "F8_256K" to best performance (according to my experience)
- Click "Apply" button to apply filter
- Click "Squeeze it!" at right bottom side of screen to start conversion.
- You can access converted file at directory that original file already located.

Keywords : Reducing .flv video file without loss of quality. Sorenson Squeeze v5.0
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Configuring Awstats for Mulitple web sites
26.06.2009 14:44:33 - Filed under : Asp.net
I explained something about installation Awstats log analyzer tool before. I list all required steps to implement much more web site to use Awstats report. Here we go :


1. Configure W3SVC log format in IIS (in Website tab)

   You should delete all previos log file in Log files directory (ex: C:\WINDOWS\system32\LogFiles\W3SVC129507843) If you can not delete anything in that folder, please try to stop website and delete it again. Then set these properties to enable.

   -  Date (date)
   -  Time (time)
   -  Client IP Address (c-ip)
   -  Username (cs-username)
   -  Method (cs-method)
   -  URI Stem (cs-uri-stem)
   -  URI Query (cs-uri-query)
   -  Protocol Status (sc-status)
   -  Bytes Sent (sc-bytes)
   -  Protocol Version (cs-version)
   -  User Agent (cs(User-Agent))
   -  Referrer (cs(Referrer))

2. Access to web site with Internet explorer/firefox to create sample log file in server's LogFiles directory.

3. Create configuration file in "C:\perl\wwwroot\cgi-bin" (ex : awstats.www.sampledomain.com.tr.conf)

4. Update 3 parameters according to new site.

   - LogFile="C:\WINDOWS\system32\LogFiles\W3SVC129507843\ex%YY-24%MM-24%DD-24.log"
   - SiteDomain="www.sampledomain.com.tr"
   - HostAliases="sampledomain.com.tr www.sampledomain.com.tr"

5. Copy icon folder in "C:\perl\wwwroot\icon" to your root website directory (ex: C:\Inetpub\wwwroot\sampledomain\sampledomain)

6. Create stats folder in web root to publish report (ex : C:\Inetpub\wwwroot\sampledomain\sampledomain\stats)

7. Right click on the stats folder in IIS and select properties, then click documents tab and add default html page name (ex : awstats.www.sampledomain.com.tr.html) Then, move it to first line.

6. Create batch file with following lines (ex : AwstatsService.bat)
 
  C:\Perl\wwwroot\cgi-bin\awstats.pl -config=www.sampledomain.com.tr –update
  C:\Perl\tools\awstats_buildstaticpages.pl -config=www.sampledomain.com.tr -update -lang=en -dir="C:\Inetpub\wwwroot\sampledomain\sampledomain\stats" -awstatsprog="C:\Perl\wwwroot\cgi-bin\awstats.pl"

  Hint : This batch file use previous day log records. see 9th line below if you want to see current traffic.

7. Create scheduled task in Control Panel for batch file (AwstatsService.bat) to run it in anytime.

8. You can access report by http://www.sampledomain.com.tr/stats/

9. Use this batch file (ex : AwstatsCurrent.bat) if you want to see current usage in traffic report.
   
   C:\Perl\wwwroot\cgi-bin\awstats.pl –config=www.sampledomain.com.tr –update –logfile="C:\WINDOWS\system32\LogFiles\sampledomain\W3SVC1370046439\ex090620.log"
   C:\Perl\tools\awstats_buildstaticpages.pl -config=www.sampledomain.com.tr -update -lang=en -dir="C:\Inetpub\wwwroot\sampledomain\sampledomain\stats" -awstatsprog="C:\Perl\wwwroot\cgi-bin\awstats.pl"

   Because AwstatsService.bat (in 6th item)  use previous day log records.
   Note : You should change logfile name that end of first line everyday. (ex090620.log)

10. Note : Don't run batch file (ex : AwstatsCurrent.bat) in 2 minutes again.

Keywords : Awstats configuration for multiple web sites.
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Flash Player Detection Kit
25.06.2009 10:51:57 - Filed under : Asp.net
The Flash Player Detection Kit helps developers implement robust player detection for a variety of deployment environments by providing a set of templates and techniques to successfully detect the version of Flash Player installed on a user’s computer, and, if needed, to then install the latest version of Flash Player. The kit also includes a detailed explanation and sample files for implementing the new, player-based Flash Player Express Install experience. The scripts in the Flash Player Detection Kit are also incorporated into Flash Professional 8.

Please click here to download Client-side/Javascript Detection samples.

More detail : http://www.adobe.com/products/flashplayer/download/detection_kit/

Keywords : Flash version detection, javascript
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