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European IIS 8 Hosting - UK :: How to Optimize Your IIS 7.5/8 Performance

clock March 3, 2015 06:58 by author Scott

Most of you must be very familiar with IIS, moreover if you use Windows Server and deploy your ASP.NET application. In this tutorial, we will only give short tips about how to improve your IIS 7.5/8 performance. With good performance, IIS will serve better and faster web pages to your users.

Please Disable ASP Debugging

When you run your server in the production environment, you may not need to run ASP debugging mode. Stopping debugging mode will save you a great amount of processing power. To disable debugging, click on your server name in IIS and then right click on it to enable feature view. One the right pane, click on ‘compilation’ and then click on ‘debugging properties’. Next, set the following values as given below:

Server side debugging: false

Client side debugging: false

Limit ASP Threads per Processor

This limits the number of ASP requests handled by IIS simultaneously. Normally, the default value is 25. The maximum allowed number is 100. You can increase it to 50 and monitor the performance level of your IIS. To change this value click on your server and then double click on ASP under IIS in the feature view mode. Next, click on “limit properties” and set the value, as you consider suitable to match your processing needs.

Enable HTTP Compression

This is something that our clients ask to configure and it is really effective to make your site run faster. This feature helps to transfer data faster between IIS and client browsers and saves your bandwidth. You can compress HTTP in both website level and server level. To enable server level http compression, right click on sever name in IIS and then double click on compression under IIS on the right pane. You can enable both static and dynamic http compression.

Setup Logging Option

With default settings, IIS logs almost everything under the hood.  You either can disable logging option or can select a number of essential events to log in your server. To set logging option, click on “Sites” in IIS server, and then select the parameters that you want to keep as a log in your server. Remember to enable the “feature view” by right clicking on the server name in IIS. In the feature view pane, click on ‘log’ and set the logging feature; to disable logging completely click on the disable option on the right pane. Remember that you can set logging option both in server level and website level.

Setup HTTP Response Header

This feature helps to minimize the number of http requests send to IIS by website visitors. HTTP expires header will help the client browser to cache webpages and its elements such as images, CSS etc.  To set http expires you need to click on HTTP response headers in the IIS, and then click on “set common headers”. Next select ‘expire web contents” and select the number of days or hours—this is total time your contents will be cached in the client’s browser.

Enable Output Caching

When you enable output caching, IIS will keep a copy of requested webpages. If a new user requests the very same webpage located in the cache, IIS will send the copy from its cache without reprocessing the contents. Output caching can significantly improve your server response time for dynamic contents.

Modify ASP queue length property

This value represent how often IIS will send “server too busy” message (HTTP error 503) to the users when ASP is receiving high number of requests. If the queue length time is too high, IIS will send “busy message” to users with longer delay, which make the users feel that the server may be out of service.  Too low queue length will cause the server send “server busy message” quite often, consuming resources of the server. If you are unsure about this setting, you can follow Microsoft’s recommendation for one-to-one ratio, which means if you have four processors in your server with ASP thread processor value set to the default 25, you can set the queue length to 25*4=100.

You can change the queue length by going at “limit properties”—the same way you change the ASP thread processor value.

Control the connection limits

This option can give you to control the connection in three ways: controlling connection timeout, controlling maximum bandwidth per website, controlling concurrent connections.

This connection limit option will allow you to set the maximum bandwidth per second and the maximum concurrent connection per second.  The maximum allowed bandwidth make a site use only a certain amount of bandwidth per second—thus improving the performance of other sites in a shared web-hosting environment.

Controlling the number of concurrent connection is another way to improve IIS performance and to improve the security of IIS as well. This option will allow only the specified number of clients to connect to the website at a given moment. So, if any malicious program tries to send numerous connection requests will be rejected by the IIS, and thus prevent your server becoming overloaded with requests during a DDoS attack.

After changing the performance settings, check the performance level of your server by gradually increasing load to a desired level. You can also consider using Google page speed tool to check whether page-loading time has been improved.

Hope above tutorial bring benefits for you. Thanks for reading.



IIS 8.0 Hosting Belgium - HostForLIFE.eu :: How to Fix PUT/POST/DELETE Verb Errors On Site ?

clock January 21, 2015 08:27 by author Peter

A customer was getting errror when utilizing PUT/POST/DELETE verbs on their web application as of late. The error looks like this:
<h2>405 - HTTP verb used to access this page is not allowed.</h2>

<h3>The page you are looking for cannot be displayed because an invalid method (HTTP verb) was used to attempt access</h3>

After some troubleshooting the error was disengaged to the way that WebDav was installed on the server and was catching those requests for its own service use.

Instead of removing Webdav from the server, we made a go at searching for an alternate solution. Thankfully somebody on Twitter comprehended the issue and gave an illustration of changes to make to the customer's web.config record with a specific end goal to disable (remove) the Webdav module for simply that particular webpage without requiring any requiring managerial activities on the server.

The code updates to make to your web.config record to intention this error are:
<configuration>
  <system.webServer>
    <handlers>
      <remove name="WebDAV" />
      <remove name="ExtensionlessUrlHandler-ISAPI-4.0_32bit" />
      <remove name="ExtensionlessUrlHandler-ISAPI-4.0_64bit" />
      <remove name="ExtensionlessUrlHandler-Integrated-4.0" />
      <add name="ExtensionlessUrlHandler-ISAPI-4.0_32bit" path="*." verb="GET,HEAD,POST,DEBUG,PUT,DELETE,PATCH,OPTIONS" modules="IsapiModule" scriptProcessor="%windir%\Microsoft.NET\Framework\v4.0.30319\aspnet_isapi.dll" preCondition="classicMode,runtimeVersionv4.0,bitness32" responseBufferLimit="0" />
      <add name="ExtensionlessUrlHandler-ISAPI-4.0_64bit" path="*." verb="GET,HEAD,POST,DEBUG,PUT,DELETE,PATCH,OPTIONS" modules="IsapiModule" scriptProcessor="%windir%\Microsoft.NET\Framework64\v4.0.30319\aspnet_isapi.dll" preCondition="classicMode,runtimeVersionv4.0,bitness64" responseBufferLimit="0" />
      <add name="ExtensionlessUrlHandler-Integrated-4.0" path="*." verb="GET,HEAD,POST,DEBUG,PUT,DELETE,PATCH,OPTIONS" type="System.Web.Handlers.TransferRequestHandler" preCondition="integratedMode,runtimeVersionv4.0" />
    </handlers>
    <modules>
      <remove name="WebDAVModule" />
    </modules>
  </system.webServer>
</configuration>

HostForLIFE.eu IIS 8.0 Hosting
HostForLIFE.eu is European Windows Hosting Provider which focuses on Windows Platform only. We deliver on-demand hosting solutions including Shared hosting, Reseller Hosting, Cloud Hosting, Dedicated Servers, and IT as a Service for companies of all sizes. We have customers from around the globe, spread across every continent. We serve the hosting needs of the business and professional, government and nonprofit, entertainment and personal use market segments.



IIS 8.0 Hosting UK - HostForLIFE.eu :: How to Fix Troubleshoot HTTP 400 Bad Request error on IIS ?

clock January 20, 2015 07:54 by author Peter

There's a J2EE app running on the Tomcat with ISAPI redirector on IIS 8 of Windows Server 2012. Recently the customer got the error related to an AJAX request. At the point when debugging the issue, I figured out that the IIS returns HTTP 400 Bad Request error instead of passing along the url for the Tomcat to handle it.In the IIS log record, there's no record for this appeal nor lapse log not one or the other.

Go to the IIS admin:
Website > Advanced Settings > Limits > Maximum URL Segments: 32
Request Filtering module > Edit Feature Settings:
Maximum URL Length: 4096
Maximum query string: 2048

All is well. The url that makes blunder meets those design since it has recently few segments and the length is around 380 characters - a long ways behind the utmost settings. At that point I attempted to shorten the url a little bit and then a little bit.. and then finally it worked. It seems there's a limit around 300 characters.

Google around to to enable the error log and I found How to troubleshoot HTTP 400 errors. At that point go to  Error logging in HTTP APIs. Download the Enable HTTP API lapse logging  Microsoft Fix it 50634 to introduce it, yet it said the current OS is not matched! In spite of the fact that the direction applies for Windows Server 2012 Standard as the application is running on.
So have to go to regedit and configure the Http.sys registry settings with following parameters:
EnableErrorLogging: Decimal 1
ErrorLogFileTruncateSize: Decimal 10 (MB)
ErrorLoggingDir: C:\inetpub\logs\LogFiles

Then do : net stop HTTP
It will asks you to confirm another services also:
   Windows Remote Management (WS-Management)
   Windows Event Collector
   World Wide Web Publishing Service


Then do: net start HTTP
The HTTP Service service was started successfully.
Check the website, it will stop. Start HTTP again, but it said the HTTP service is already started!
So go to the services manager to start World Wide Web Publishing Service, then Windows Remote Management (WS-Management) and Windows Event Collector

Then test again and see the error log file with a record just shows a very simple error reason: URL. There's a breaking point setting called UrlSegmentMaxLength with 260 characters of course! I felt that brought about the issue in light of the fact that the full url with space name that worked when there's around 300 characters.  So go to regedit and add UrlSegmentMaxLength with 1000 characters value to the HTTP parameters and restart http, w3svc, winrm and wecsvc services again.

I ask why the MS didn't make it for an every particular site like the Maximum URL Segments and effectively to set. In any case we'll need to arrange in the Windows registry that requires to restart entire administrations and influence all sites.

HostForLIFE.eu IIS 8.0 Hosting
HostForLIFE.eu is European Windows Hosting Provider which focuses on Windows Platform only. We deliver on-demand hosting solutions including Shared hosting, Reseller Hosting, Cloud Hosting, Dedicated Servers, and IT as a Service for companies of all sizes. We have customers from around the globe, spread across every continent. We serve the hosting needs of the business and professional, government and nonprofit, entertainment and personal use market segments.



European IIS 8 Hosting in Cloud - France :: How to Host Your WCF Service in IIS 8?

clock June 11, 2014 10:10 by author Scott

It sounds like it should be trivial: Create a WCF web library and host it in IIS. Surely lots of people need to do this, and it will be easy in a fairly modern version of Visual Studio like 2012? Previously I have created this article about how to host WCF Service in IIS 8, however I will explain more details in this article.

Whatever the reason, I hope this page will offer a useful step-by-step guide to set up a WCF Service Library project to be run from its development folder on Windows 8.0 or Windows 2012, IIS 8.0 – and I have been using VS 2012 and .Net Framework 4.5 as the target.  Also, before I begin, and something of a spoiler alert; you may prefer to publish your website to a specific location, and host it in IIS from there, rather than try and host it from your development folder.  This option is covered after the walk-through below.

Please Make Sure that You Have Integrated your ASP.NET with IIS

The easiest way to check this is to create a minimalistic web application (e.g. ASP.NET MVC with “No Authentication”) and try to host it in IIS (see configuration steps below). If something is missing, make sure that:

  • “Internet Information Services” and “Word Wide Web Services” are enabled in the “Turn Windows Features on or off” dialog.
  • If IIS is up and running, but the ASP.NET integration is missing (you can check the ISAPI filters in IIS Manager), you should run “%WINDIR%\Microsoft.NET\Framework64\v4.0.30319\aspnet_regiis.exe –i” and hope for the best (maybe restart the machine afterwards).

Take a look at WCF Service

I assume that you have created WCF service called “WCF Service Application”. Hosting this application in IIS means that you create a virtual directory in IIS, where you link the root folder of your project to a URL. You also need to specify an app pool to be used, which should match to the .NET framework you target (e.g. “.NET v4.5”).

If you have configured your.svc files within the specified URL, you should see a page with some positive messages and links to the WSDL contracts. If you see this, then stop reading, you are done.

However, you can receive an error page, “HTTP Error 404.17 – Not Found”, “The requested content appears to be script and will not be served by the static file handler.”. This most probably means that your IIS is not configured to host WCF services (this seems to be the default).

With .NET 3.5, you had to run the “ServiceModelReg.exe” tool, but this doesn’t seem to be necessary anymore for .NET 4.0+ (“aspnet_regiis” does this already). If you look into the details of the IIS settings, you can see some references to WCF.

The only thing you have to do is to enable “HTTP Activation” in the “Turn Windows Features on or off” dialog under the “WCF Services” node. With this, you basically enable the creation of WCF service instances to serve requests coming through HTTP.

Then, please test it again and you wont see any error message anymore.

I hope this article will help you a lot.



IIS 8 Hosting Germany - HostForLIFE.eu :: WordPress on Windows Server 2012 with IIS 8 and SQL Server 2012

clock May 6, 2014 08:55 by author Peter

Yesterday I decided to install WordPress for my new blog, both because it seemed like good product for the job and also to get some experience in running it (and thus also PHP) on Windows Server 2012 with IIS 8 Hosting. There are some good resources scattered around the web, but none seemed up to date, so I decided to share my notes from the install on here. I’m assuming you already have Windows Server 2012 and SQL Server 2012 installed.

IIS 8 CONFIGURATION
The configuration of IIS 8 is quite easy: you just enable the Web Server role through Server Manager. Just to be complete, the screenshot below shows the options I currently have installed, but keep in mind that I’m also running ASP.NET on my server.

Yesterday I decided to install WordPress for my new blog, both because it seemed like good product for the job and also to get some experience in running it (and thus also PHP) on Windows Server 2012 with IIS 8. There are some good resources scattered around the web, but none seemed up to date, so I decided to share my notes from the install on here. I’m assuming you already have Windows Server 2012 and SQL Server 2012 installed.

IIS 8 CONFIGURATION
The configuration of IIS 8 is quite easy: you just enable the Web Server role through Server Manager. Just to be complete, the screenshot below shows the options I currently have installed, but keep in mind that I’m also running ASP.NET on my server.I also highly recommend you install PHP Manager (http://phpmanager.codeplex.com/) as it will help us in enabling/disabling PHP extensions from within IIS Manager later on and provides an easy way to access php.ini as well.

PREREQUISITE INSTALLATION
To make things easy, you can install and configure PHP quite easily using the Microsoft Web Platform Installer. When you run the Web Platform Installer (Web PI), you can do a quick search for “sql php” and it comes up a few results. When you select “Microsoft Drivers 3.0 for PHP v5.4 for SQL Server in IIS”, which is what we need, all other prerequisites will be automatically installed as well as dependencies (PHP and URL Rewrite for IIS).

After Web PI finishes, you will have PHP installed and configured for use in IIS. Time to do a little test to see if everything is running smoothly. Create a new file under C:\inetpub\wwwroot\ (or wherever your Default Web Site is pointing to) named test.php with the following content:
<?php echo phpinfo(); ?>

This will output information about your PHP configuration.

Time to try it out: navigate to the page (likely http://localhost/test.php). If you are greeted with a screen with purple blocks of information about your PHP configuration, you’re all set and you can skip ahead to the WORDPRESS INSTALLATION section. Chances are you’re going to be greeted with an IIS 403.1 error screen, however, which is due to the fact that the user account that IIS is currently using for the anonymous access to your site doesn’t have the proper privileges to access your wwwroot (or equivalent) folder on disk. This is solved quite easily by granting this user (called IUSR by default) access to the wwwroot folder through Windows Explorer or your other favorite method.

Retry and bask in the glory of the phpinfo() output.

WORDPRESS INSTALLATION

Now we can start downloading the actual WordPress files and start the installation. First off, grab the latest version (or the version of your choice) of WordPress. We will also need the WP Db Abstraction plugin. After downloading, unblock and unZIP both files in a folder under wwwroot (or your Web Site’s location). Installation of the WP Db Abstraction plugin is quite easy, just follow the steps outlined in the readme.txt:Upload wp-db-abstraction.php and the wp-db-abstraction directory to wp-content/mu-plugins. This should be parallel to your regular plugins directory. If the mu-plugins directory does not exist, you must create it.

Put the db.php file from inside the wp-db-abstraction.php directory to wp-content/db.php
Visit $your_wordpress_url/wp-content/mu-plugins/wp-db-abstraction/setup-config.php to generate your wp-config.php file

Before you perform the last step, though, go to IIS Manager and enter PHP Manager (it’s located on the Features page of your server under IIS). Scroll down and click the “Enable or disable an extension” link. You need to make sure that php_pdo_sqlsrv.dll and php_sqlsrv.dll are both enabled. You can also go ahead and disable the *mysql*.dll extensions. Here’s my list of enabled extensions:

Now we can visit the setup-config.php page as outlined above. The steps here are quite straightforward, so I’m not going to walk you through them. You will need to create a user on your SQL Server 2012 installation with SQL Server authentication that has access to a database that you also need to create to use for your WordPress installation.

One note about this process: I had some issues when choosing the default selected “SQL Server using MS PHP driver” and went with the “PDO SqlSrv” option the second time to eliminate these issues.

If the wizard has trouble automatically creating the wp-config.php file, you can either choose to give IUSR write permissions on the folder you created to hold all your WordPress files or you can manually create the file under that folder and paste the output you see on screen in there (I chose the latter). After the wp-config.php file is created, you can start the installation of WordPress by clicking the link on the bottom of the page you’re on.

WORDPRESS CONFIGURATION

After the install, which should only take a minute tops, you are now ready to log in to your WordPress admin dashboard and start configuring it how you’d like. As you can see, there’s a sample post and comment already waiting for you. If your experience is anything like mine, you will notice that when you navigate to the Posts -> All Posts option on the top left of your dashboard you won’t actually see these posts in the list. It took some hunting around the web to figure this out, but apparently there’s a line in the translations.php file of the WP Db Abstraction plugin that’s causing this (thanks to tm3ister on http://sourceforge.net/projects/wp-sqlsrv/forums/forum/1124403/topic/5004241 for figuring this out!). The solution is to manually edit the translate_limit function in the mu-plugins/wp-db-abstraction/translations/sqlsrv/translations.php file:

Change

// Check for true offset
if ( (count($limit_matches) == 5  )  && $limit_matches[1] != '0' ) {
    $true_offset = true;
} elseif ( (count($limit_matches) == 5 )  && $limit_matches[1] == '0' ) {
    $limit_matches[1] = $limit_matches[4];
}

To

// Check for true offset
if ( (count($limit_matches) == 5  )  && $limit_matches[1] != '0' ) {
    $true_offset = true;
} elseif ( (count($limit_matches) >= 5 )  && $limit_matches[1] == '0' ) {
    $limit_matches[1] = $limit_matches[4];
}

And voila, your posts will now show up.

The last thing we’re going to configure is Permalinks (or pretty URLs) for our posts. When you navigate to Settings -> Permalinks on the admin dashboard, you’ll see some options to rewrite URLs to be more human and search engine friendly. For now, select Custom Structure and enter /%year%/%monthnum%/%postname%/ in the text field and hit Save Changes. The last step is to create a web.config file in our WordPress folder to rewrite the URLs according to this scheme with IIS URL Rewrite. Create a new web.config file (if you don’t have one already) in the folder you installed WordPress to and copy in the following:

<?xml version="1.0" encoding="utf-8"?>
<configuration>
  <system.webServer>
    <rewrite>
      <rules>
        <rule name="wordpress" patternSyntax="Wildcard">
          <match url="*" />
          <conditions>
            <add input="{REQUEST_FILENAME}" matchType="IsFile" negate="true" />
            <add input="{REQUEST_FILENAME}" matchType="IsDirectory" negate="true" />
          </conditions>
          <action type="Rewrite" url="index.php"/>
        </rule>
      </rules>
    </rewrite>
  </system.webServer>
</configuration>

You’re now all set to use WordPress on Windows Server 2012 with IIS 8 and SQL Server 2012!



About HostForLIFE.eu

HostForLIFE.eu is European Windows Hosting Provider which focuses on Windows Platform only. We deliver on-demand hosting solutions including Shared hosting, Reseller Hosting, Cloud Hosting, Dedicated Servers, and IT as a Service for companies of all sizes.

We have offered the latest Windows 2012 Hosting, ASP.NET 4.5 Hosting, ASP.NET MVC 5 Hosting, and SQL 2014 Hosting.

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