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WAP secure connectionless session service. Cross-platform Music Multiplexing System. Abyss web server remote web management interface. Applications running in this mode use the Network Service identity, by default. Network Service is an account with few user rights and therefore provides better security by restricting access to resources on the Web server. If you migrate applications to IIS 6. The LocalSystem account has access to almost all resources on the operating system, and therefore creates serious security implications.
You should avoid using the LocalSystem account when possible. If it is absolutely necessary to use the LocalSystem account on an application, run that application in a new application pool in its own virtual directory so you can reduce the attack surface by isolating the application. As an alternative, and if your application needs permission to use the Trusted Computing Base TCB , run the application as a configurable identity and assign the TCB permission to the configurable identity.
This alternative, however, still presents a security risk because the TCB permission is very powerful. In order to take a more proactive stance against malicious users and attackers, IIS is installed in a highly secure and locked mode. Server Extensions, and Common Gateway Interfaces - do not work unless enabled. If you do not enable this functionality after installing IIS, by default on this denial, IIS returns a generic custom error page to prevent disclosure of configuration information.
IIS also writes the error with the substatus code of 2 You must be a member of the Administrators group on the local computer to perform the following procedure or procedures , or you must have been delegated the appropriate authority.
As a security best practice, log on to your computer using an account that is not in the Administrators group, and then use Runas to open a command window from which you can run other programs like IIS Manager. For requests to static content, this version of IIS serves requests for files with known file name extensions only, a feature called Known Extensions.
If a request is made for a resource whose file name extension is not mapped to a known extension in the MimeMap property, IIS denies the request and logs a error with the substatus code of 3 To prevent disclosure of configuration information, IIS is configured to return the generic custom error page by default on this denial. Tools like URLScan can be configured to block processing of certain file name extensions.
By default, worker processes recycle after minutes. If your ASP applications are not designed to store session state while a worker process is recycled, then session state in that ASP application can be lost. To remedy this problem, you can either store session state in a database or disable worker process recycling. On the Recycling tab, clear the Recycle worker processes in minutes check box. If your ASP page uses the include server-side include directive and the "..
During the course of processing the request and generating the response, the Windows Authentication module added the "WWW-Authenticate" header, with a value of "Negotiate" to match what was configured in IIS. This tells the client how the server expects a user to be authenticated. These can be discerned by looking at the encoded auth strings after the provider name. NTLM and its auth string is described later in this post.
Notice the encoded auth string starts with "YII.. Side-note: The client device will reach out to Active Directory if it needs to get a token. This communication takes place after the server sends the initial response 1 , and before the client sends request 2 above.
Of course, if the client has a cached Kerberos token for the requested resource already, then this communication may not necessarily take place, and the browser will just send the token it has cached. Side-note 2: Troubleshooting Kerberos is out of the scope of this post. This post shows a healthy, successful, working authentication flow, and assumes there were no problems retrieving a Kerberos token on the client side, and no problems validating that token on the server side. Once the server has received the second request containing the encoded Kerberos token, http.
If everything is good, http. We can see this request was ultimately serviced by IIS, per the "Server" header. This is so the client can authenticate if the server is genuine. It's certainly not obvious here that http. At this point, the server needs to generate the NTLM challenge Type-2 message based off the user and domain information that was sent by the client browser, and send that challenge back to the client. Once it has been received, http. Note the "Server" header now - this indicates the response was generated and sent back to the client by http.
It's not logged by http.
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