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European IIS 8.5 Hosting - HostForLIFE.eu :: How to Host Different SSL with 1 IP in IIS

clock October 7, 2016 18:56 by author Scott

That has been a question we have come across frequently. Before IIS 8, you could host multiple sites needing SSL on a single IP address if the sites utilized the same SSL certificate or used a wildcard SSL certificate.  A wildcard certificate was only beneficial if you needed SSL on the subdomain level of a current site/domain. But what if you had sites with different names? Well, you could get a Subject Alternative Names (SAN) SSL certificate.  This SSL certificate would allow you to protect multiple sites with a single SSL certificate. The last available option prior to IIS 8 required setting each additional SSL site on the same IP address but with a different SSL port number. This would allow you to utilize each site’s/domain’s SSL on the same IP address as another site.  By default, SSL certificates utilize port 443 for secure communication. This port doesn’t need to be specified in the URL since this is the standard port. When you use a different port number for SSL you will be required to add the non-standard SSL port number in the URL in order for it to work.  As you can imagine, this is not the way you want to run a public site. How would a user know to enter the port number and it’s not a common step that users are familiar with doing when browsing a site.

Adding an additional IP address to host another site needing SSL is the common method used but sometimes this isn’t an option for some people. With the inception of IIS 8 on Windows Server 2012, a new feature called Server Name Identification (SNI) was added. This feature offers an easier solution to hosting multiple sites that have a different or individual SSL on a single IP address. This feature is included in IIS 8 by default and doesn’t require the installation of any additional features to begin using it. Below, we will walk through the steps involved with configuring SNI. One thing to note with implementing SNI for your SSL solution, it will not work for those users running Internet Explorer on Windows XP. If your server has multiple IP addresses, you can implement SNI for some sites in addition to assigning individual sites to a single IP address for SSL. Both methods will work along side each other on different IP addresses without issue.

Steps:

1)  One of the first things you will need to do is import the SSL certificates for each site on the server if this hasn’t been done already
2)  Next, open IIS 8 Manager and add your first site that will need SSL
  a.  If the first site is already in place, proceed to step the next step
3)  After the site is added select the site and click Bindings… under the Actions menu pane on the right

4)  Click Add
  a.  Select https for the Type
  b.  You can leave the IP address to “All Unassigned” or choose the IP address you want to use
(If you have multiple IP’s on the server you will want to specify the one you want to use for SNI)
  c.  Enter your site/domain name for Host name
  d.  Check the box for “Require Server Name Indication”
  e.  Select the SSL certificate for the site from the drop down box
  f.  Click OK

5)  Create the second site and add the SSL binding following the steps below
6)  Select Bindings and click Add
  a.  Select https for the Type
  b.  You can leave the IP address to “All Unassigned” or choose the IP address you want to use
   (If you have multiple IP’s on the server you will want to specify the one you want to use for SNI)
  c.  Enter your site/domain name for Host name
  d.  Check the box for “Require Server Name Indication”
  e.  Select the SSL certificate for the site from the drop down box

7)  Click OK to complete the setup

That’s all that needs to be done.  Test SSL for the site to make sure each site is working properly.  If you have additional sites that need SSL added, you can continue following the steps above for adding the SSL binding for each new site.



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.



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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