add handler mapping on windows 7 iis

iaspi module was here
C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_isapi.dll

HTTP Error 401.3 - Unauthorized

on local - make sure IUSR has rights to folder

app cmd script to allow ipv4 access on iis

%systemroot%\system32\inetsrv\AppCmd.exe set config "blah/subblah" /section:ipsecurity /+"[ipaddress='105.536.551.514',allowed='true']" /commit:appHost

400 Bad Request

will happen when you call a REST service using the wrong address (the address behavior that is not rest)

Internet Explorer cannot display the webpage

Memory gates checking failed because the free memory (nnnnnnnn bytes) is less than 5% of total memory.

restart IIS

iis logfiles

for example \\blah\c$\inetpub\logs\LogFiles\W3SVC3

the number is based on the app id 

htttp 502 fiddler response from https

the router was not set up properly

Basic Web Vulnerabilities

are broken in to 3 types

• Injection 
• sql injection
• LDAP Injection
• The server trusting requests
• HTP response splitting
• server side includes
• cross site request forgery CSRF
• the client trusting responses
• cross site scripting XSS

CSS File http 200 but content length is 0

here

IISRESET vs Recycling Application Pools

here

Access to the path 'blah' is denied.

could be read only issues

Unable to start debugging on the web server on local VS

app pool maybe closed

Cannot read configuration file due to insufficient permissions

we couldn't get a website working until we gave specific rights to the user for the anonymous logins.

404 - File or directory not found.

The resource you are looking for might have been removed, had its name changed, or is temporarily unavailable.

this happened when someone re-installed a server - all the http handlers were gone!

had to run aspnet_regiis –i

'RSClientController' is undefined

I had to change the app pool managed pipeline to classic

vs2010 cannot start debugger

was really just an invalid identity on my app pool because I changed passwords.

The page you are requesting cannot be served because of the ISAPI and CGI Restriction list settings on the Web server errors

select the server on IIS and set this

IIS Security error

The application attempted to perform an operation not allowed by the security policy.  To grant this application the required permission please contact your system administrator or change the application's trust level in the configuration file.

This can be caused by the site being set up in the wrong pool -e.g  it needs classic asp

Could not load file errors

Could not load file or assembly 'blah' or one of its dependencies. An attempt was made to load a program with an incorrect format.

could just mean  the apppool is not configured for 32 bit apps

In my case I converted a .net 2.0 asp.net project to 4.0. 

503 error

can be caused when the password for the identity for the apppool changed. I would of thought that IIS would have used the new password in my case but it didnt