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IIS 502 - Web server received an invalid response while acting as a gateway or proxy server

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1

I have a problem with a configuration on a IIS service, basically we get an 502 error when we want to establish an https connection. To be honest I am developer not a sysadmin but I am helping a colleage with this issue.

The following parameters are currently setted:

Server Name : XXX
Web Server : IIS ( Windows server 2012)
(HTTP) only for testing
FrontEnd - Angular / Port 80

BackEnd - Java / Port 8787

(HTTPS) this is the goal configuration.
FrontEnd - Angular / Port 443
BackEnd - Java / Port 9787

Only https://XXX:443/* is available for endUser

So, in Dev environment there's no problem because all ports are available for everybody.
In production, the endusers only can access to one port.
Supposedly if we configure properly the proxy in IIS we can use it to call the backend.

The proxy works for HTTP (port 80), but when for HTTPS(443) we have the error "502 - Web server received an invalid response while acting as a gateway or proxy server"

This is the web.config for HTPPS

<?xml version="1.0" encoding="UTF-8"?>

  <configuration>

     <system.webServer>

          <rewrite>

       <rules>

           <rule name="ReverseProxyInboundRule1" stopProcessing="true">

               <match url="(.*)" />

               <action type="Rewrite" url="https://localhost:9787/iam-b2e-backend/{R:1}/{R:1}" />

           </rule>

       </rules>

   </rewrite>

  </system.webServer>

</configuration>

For HTTP

 <?xml version="1.0" encoding="UTF-8"?>

 <configuration>

  <system.webServer>

   <rewrite>

       <rules>

           <rule name="ForwardProxy">

               <match url="(.*)" />

               <action type="Rewrite" url="http://localhost:8787/iam-b2e-backend/{R:1}" />

           </rule>

       </rules>

   </rewrite>

 </system.webServer>

</configuration>

networking proxy https iis reverse-proxy

share|improve this question

edited Jan 12 '18 at 11:45

MadDev

asked Jan 12 '18 at 11:29

MadDevMadDev

65

add a comment | 

1

I have a problem with a configuration on a IIS service, basically we get an 502 error when we want to establish an https connection. To be honest I am developer not a sysadmin but I am helping a colleage with this issue.

The following parameters are currently setted:

Server Name : XXX
Web Server : IIS ( Windows server 2012)
(HTTP) only for testing
FrontEnd - Angular / Port 80

BackEnd - Java / Port 8787

(HTTPS) this is the goal configuration.
FrontEnd - Angular / Port 443
BackEnd - Java / Port 9787

Only https://XXX:443/* is available for endUser

So, in Dev environment there's no problem because all ports are available for everybody.
In production, the endusers only can access to one port.
Supposedly if we configure properly the proxy in IIS we can use it to call the backend.

The proxy works for HTTP (port 80), but when for HTTPS(443) we have the error "502 - Web server received an invalid response while acting as a gateway or proxy server"

This is the web.config for HTPPS

<?xml version="1.0" encoding="UTF-8"?>

  <configuration>

     <system.webServer>

          <rewrite>

       <rules>

           <rule name="ReverseProxyInboundRule1" stopProcessing="true">

               <match url="(.*)" />

               <action type="Rewrite" url="https://localhost:9787/iam-b2e-backend/{R:1}/{R:1}" />

           </rule>

       </rules>

   </rewrite>

  </system.webServer>

</configuration>

For HTTP

 <?xml version="1.0" encoding="UTF-8"?>

 <configuration>

  <system.webServer>

   <rewrite>

       <rules>

           <rule name="ForwardProxy">

               <match url="(.*)" />

               <action type="Rewrite" url="http://localhost:8787/iam-b2e-backend/{R:1}" />

           </rule>

       </rules>

   </rewrite>

 </system.webServer>

</configuration>

networking proxy https iis reverse-proxy

share|improve this question

edited Jan 12 '18 at 11:45

MadDev

asked Jan 12 '18 at 11:29

MadDevMadDev

65

add a comment | 

I have a problem with a configuration on a IIS service, basically we get an 502 error when we want to establish an https connection. To be honest I am developer not a sysadmin but I am helping a colleage with this issue.

The following parameters are currently setted:

Server Name : XXX
Web Server : IIS ( Windows server 2012)
(HTTP) only for testing
FrontEnd - Angular / Port 80

BackEnd - Java / Port 8787

(HTTPS) this is the goal configuration.
FrontEnd - Angular / Port 443
BackEnd - Java / Port 9787

Only https://XXX:443/* is available for endUser

So, in Dev environment there's no problem because all ports are available for everybody.
In production, the endusers only can access to one port.
Supposedly if we configure properly the proxy in IIS we can use it to call the backend.

The proxy works for HTTP (port 80), but when for HTTPS(443) we have the error "502 - Web server received an invalid response while acting as a gateway or proxy server"

This is the web.config for HTPPS

<?xml version="1.0" encoding="UTF-8"?>

  <configuration>

     <system.webServer>

          <rewrite>

       <rules>

           <rule name="ReverseProxyInboundRule1" stopProcessing="true">

               <match url="(.*)" />

               <action type="Rewrite" url="https://localhost:9787/iam-b2e-backend/{R:1}/{R:1}" />

           </rule>

       </rules>

   </rewrite>

  </system.webServer>

</configuration>

For HTTP

 <?xml version="1.0" encoding="UTF-8"?>

 <configuration>

  <system.webServer>

   <rewrite>

       <rules>

           <rule name="ForwardProxy">

               <match url="(.*)" />

               <action type="Rewrite" url="http://localhost:8787/iam-b2e-backend/{R:1}" />

           </rule>

       </rules>

   </rewrite>

 </system.webServer>

</configuration>

networking proxy https iis reverse-proxy

share|improve this question

edited Jan 12 '18 at 11:45

MadDev

asked Jan 12 '18 at 11:29

MadDevMadDev

65

<?xml version="1.0" encoding="UTF-8"?>

  <configuration>

     <system.webServer>

          <rewrite>

       <rules>

           <rule name="ReverseProxyInboundRule1" stopProcessing="true">

               <match url="(.*)" />

               <action type="Rewrite" url="https://localhost:9787/iam-b2e-backend/{R:1}/{R:1}" />

           </rule>

       </rules>

   </rewrite>

  </system.webServer>

</configuration>

 <?xml version="1.0" encoding="UTF-8"?>

 <configuration>

  <system.webServer>

   <rewrite>

       <rules>

           <rule name="ForwardProxy">

               <match url="(.*)" />

               <action type="Rewrite" url="http://localhost:8787/iam-b2e-backend/{R:1}" />

           </rule>

       </rules>

   </rewrite>

 </system.webServer>

</configuration>

share|improve this question

edited Jan 12 '18 at 11:45

MadDev

asked Jan 12 '18 at 11:29

MadDevMadDev

65

share|improve this question

edited Jan 12 '18 at 11:45

MadDev

asked Jan 12 '18 at 11:29

MadDevMadDev

65

asked Jan 12 '18 at 11:29

MadDevMadDev

65

asked Jan 12 '18 at 11:29

MadDevMadDev

65

1 Answer
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Problems like poor performance on some requests, or authentication-related failures on other requests, or the server 500 error from ASP or ASP.NET can often be difficult to troubleshoot--unless you have captured the trace of the problem when it occurs. the following article discusses failed request tracing on IIS Server.
This article contains detailed information. can help you

https://docs.microsoft.com/en-us/iis/troubleshoot/using-failed-request-tracing/troubleshooting-failed-requests-using-tracing-in-iis

https://dailytechposts.com/http-error-502/

share|improve this answer

answered 22 hours ago

brianbrian

1

New contributor

brian is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

add a comment | 

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0

Problems like poor performance on some requests, or authentication-related failures on other requests, or the server 500 error from ASP or ASP.NET can often be difficult to troubleshoot--unless you have captured the trace of the problem when it occurs. the following article discusses failed request tracing on IIS Server.
This article contains detailed information. can help you

https://docs.microsoft.com/en-us/iis/troubleshoot/using-failed-request-tracing/troubleshooting-failed-requests-using-tracing-in-iis

https://dailytechposts.com/http-error-502/

share|improve this answer

answered 22 hours ago

brianbrian

1

New contributor

brian is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

add a comment | 

0

Problems like poor performance on some requests, or authentication-related failures on other requests, or the server 500 error from ASP or ASP.NET can often be difficult to troubleshoot--unless you have captured the trace of the problem when it occurs. the following article discusses failed request tracing on IIS Server.
This article contains detailed information. can help you

https://docs.microsoft.com/en-us/iis/troubleshoot/using-failed-request-tracing/troubleshooting-failed-requests-using-tracing-in-iis

https://dailytechposts.com/http-error-502/

share|improve this answer

answered 22 hours ago

brianbrian

1

New contributor

brian is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

add a comment | 

Problems like poor performance on some requests, or authentication-related failures on other requests, or the server 500 error from ASP or ASP.NET can often be difficult to troubleshoot--unless you have captured the trace of the problem when it occurs. the following article discusses failed request tracing on IIS Server.
This article contains detailed information. can help you

https://docs.microsoft.com/en-us/iis/troubleshoot/using-failed-request-tracing/troubleshooting-failed-requests-using-tracing-in-iis

https://dailytechposts.com/http-error-502/

share|improve this answer

answered 22 hours ago

brianbrian

1

New contributor

brian is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

share|improve this answer

answered 22 hours ago

brianbrian

1

New contributor

brian is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

answered 22 hours ago

brianbrian

1

New contributor

brian is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

answered 22 hours ago

brianbrian

1