Publish .Net Core Web API to Linux Host

Publish .Net Core Web API to Linux Host

In this post below, I am going to detail out the step of publishing a .NET Core Web API to Linux Host

SSH the Linux host

  • Open any SSH client like gitbash
  • Go to the location where the .pem file exists
  • ssh -i <pemfilename> -v <username>@<host_IP_Address>
  • use sudo su for super admin access to run further command

Create project folder

  • Go to /var/www folder (cd /var/www)
  • create a new folder for the project. For example SampleWebAPI (mkdir SampleWebAPI )

Publish project in release mode

  • Open command prompt as administrator
  • Go to Project folder - cd <foldername>
  • dotnet publish  --configuration release

Copy latest publish code to project folder

  • Open file transfer tool like FileZilla
  • Connect to linux host with right credentials
  • Copy the file from local published folder to  /var/www/SampleWebAPI 

Change the Nginx configuration file

  • Go to cd /etc/nginx/sites-available/
  • Edit default config file: vim default
  • Add a new configuration (Example given below)

  • Save the file and exit editor
  • Listen 90 - means that the application will be publicly accessible on port 90 of the public IP
  • proxy_pass http://localhost:9000 - means that the SampleWebAPI will be running locally on port 9000
  • sudo nginx -s reload
  • sudo service nginx start

Run the core web API application

  • Go to project folder (cd  /var/www/SampleWebAPI )
  • dotnet  assemblyname.dll run --urls=http://localhost:9000/
  • Launch the url <publicIP>:90/ and you should see your application running

Problem with above publish approach

  • The app will stop running if the user exits the command prompt, because the dotnet command executed above will terminate
  • To keep it running always, a service file needs to be created and put in auto run mode

Create Service file

  • The app will stop running if the user exits the command prompt, because the dotnet command executed above will terminate
  • To keep it running always, a service file needs to be created.
  • Go to /etc/systemd/system/
  • Create a new file, name it anything
  • vim samplewebapi.service and enter the below command


  • Run systemctl daemon-reload to load the new service file
  • sudo systemctl enable samplewebapi.service (This command ensures that if the VM is restarted, the service will auto run)
  • sudo systemctl stop samplewebapi.service (Stop the Service)
  • sudo systemctl start samplewebapi.service (Start the Service)
  • Launch the url <publicIP>:90/ and you should see your application running, and it won't stop even if the command prompt is closed

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