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I got some problem when trying to use custom error pages in a .net 6 mvc web app. Using UseStatusCodePagesWithReExecute to redirect to an error controller on exceptions like 404 or 500 response status. But the error controller never got fired. Discovered that this problem was due to that the UseStatusCodePagesWithReExecute call needs to be called before app.UseRouting() in Startup.cs. Else it didn’t work for me!
Warning message below is from changing a password on a user in Microsoft Management Console (MMC) Windows 10. The warning message was quite funny, it’s in Swedish but the warning is: ..”Only use this command if a user has forgotten their password and does not have a floppy recovery disc”..Anyone using floppy disc’s these days?
Have been struggling a bit to import a SSL certificate generated by certbot (Let’s Encrypt) on an IIS server.
Reproduction of error
1. Create SSL certificate with certbot using command:certbot -d domain.com -d www.domain.com --manual --preferred-challenges dns certonly
2. Certificates and keys are created in files: “cert.pem”, “chain.pem”, “fullchain.pem” and “privkey.pem”. So far so good!
3. Create a PFX-file to import to the IIS server using:
openssl pkcs12 -export -out "myfilename.pfx" -inkey "privkey.pem" -in "cert.pem" -certfile fullchain.pem
4. PFX file created! Let’s import this to Server Certificates. Key is marked as exportable in the import. Importing then goes without any problem.
5. When re-binding the domain to use this new certificate following error occurs:
How to fix this error?
The problem seems to be in the certificate file (PFX) itself. Something went wrong when it was created. So I tried to re-create the PFX and changed the last parameter to use “chain.pem” instead and this solved the problem! So command line to create a PFX-file with certificate files from certbot should be:
openssl pkcs12 -export -out "myfilename.pfx" -inkey "privkey.pem" -in "cert.pem" -certfile chain.pem
Hope this help anyone struggling with this issue!
Default keyboard layout for Kali Linux is english. One command you can use for changing keyboard layout is:setxkbmap <lang-code>
So for instance if you would like to change the layout to swedish the command is:
setxkbmap se
If you want to create a password protected PFX file from certificate file and a private key you can use OpenSSL. Follow these steps to create a PFX file.
Scenario
Render a ASP.NET MVC Razor view with a model from the controller.
Error / Exception
System.ArgumentException: Illegal characters in path.
Cause
The model from the controller was returning JSON and the view had declared “@model string” to handle the JSON.
Solution
Updates in both controller and view. Change controller return type from string to the object.
Controller
Original: return View(JsonConvert.SerializeObject(List));
Change to: return View(List);
View
Original: @model string
Change to: @model List<object>
Case
Establish a secure connection to a server. Authentication with certificate.
Error message
The request was aborted: Could not create SSL/TLS secure channel.
Trying to connect to a WCF-service but get some error messages:
The HTTP request is unauthorized with client authentication scheme Anonymous The authentication header received from the server was Basic
The provided URI scheme https is invalid expected http
The solution was to adjust web.config > system.serviceModel section. Add “Transport” to security mode. and clientCredentialType should be “Basic” if the server expects Basic Realm.
<system.serviceModel>
<bindings>
<basicHttpBinding>
<binding name="Document_Binding" closeTimeout="01:00:00" openTimeout="01:00:00" receiveTimeout="01:00:00" sendTimeout="01:00:00" maxReceivedMessageSize="2147483647">
<security mode="Transport">
<transport clientCredentialType="Basic" />
</security>
</binding>
</basicHttpBinding>
</bindings>
<client>
<endpoint ....../>
</client>
</system.serviceModel>Good luck with your connections =)
I’ve installed SQL Server 2016 Express on a Azure Virtual Machine (VM). I opened the ports (port 1433) to connect to the server via Sql Server Management Studio (SSMS) but access was denied. I also opened the port inside the Azure portal on the server but still no success.
Then I came over a solution to the connection problem. You need to set the port number on IPAll among IP Addresses inside TCP/IP in Sql Server Configuration Manager. See screenshot below.
How to navigate to the TCP Port setting:
Good luck!
Now is VS 2019 available from Microsoft.
https://visualstudio.microsoft.com/vs2019-launch/