Before installing .NET, you’ll need to:
This only needs to be done once per machine.
sudo yum update -ysudo rpm -Uvh https://packages.microsoft.com/config/centos/7/packages-microsoft-prod.rpm
Install the .NET Core SDK
Update the products available for installation, then install the .NET Core SDK. In your terminal, run the following command.
If using net core 3.1:
sudo yum install dotnet-sdk-3.1
If using net core 2.1:
sudo yum install dotnet-sdk-2.1
in this case i’m using net core 2.1
Install the ASP.NET Core runtime
Update the products available for installation, then install the ASP.NET runtime. In your terminal, run the following command.
If using net core 3.1:
sudo yum install aspnetcore-runtime-3.1
If using net core 2.1:
sudo yum install aspnetcore-runtime-2.1
In order to confirm the result, you can create and run a “Hello World” demo .NET Core app:
cddotnet new console -o helloworldAppcd helloworldAppdotnet run
The dotnet new console -o helloworldApp
command will create a directory named helloworldApp
in your home directory and then use the console
template to generate app files in the newly created directory.
Upon executing the dotnet run
command, you will see the Hello World!
message in the console.
Now, create and run a .NET Core application of type razor
. Just remember that "Razor Pages" is a new application template of .NET Core MVC that is designed for page-oriented scenarios:
cddotnet new razor -o myfirstwebappcd myfirstwebappdotnet run
By executing the dotnet run
command above, you will start a .NET Core web app listening on: http://localhost:5000.
By default, the ASP.NET Core 2.1 project will run on the Kestrel web server on localhost.
If you want to be able to access the website remotely from other computers, you’ll need to bind it differently.
To do this, I went into the newly created project files and opened Program.cs
. In here I added a call to the UseUrls
method as follows:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Hosting;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.Hosting;
using Microsoft.Extensions.Logging;
namespace atcsmart
{
public class Program
{
public static void Main(string`` args)
{
CreateHostBuilder(args).Build().Run();
}
public static IHostBuilder CreateHostBuilder(string`` args) =>
Host.CreateDefaultBuilder(args)
.ConfigureWebHostDefaults(webBuilder =>
{
webBuilder.UseUrls("http://0.0.0.0:5000");
webBuilder.UseStartup<Startup>();
});
}
}
This binds the ASP.NET Core website to all IPs on the server, instead of just localhost
, which is the default.
Publish Aplication
Having all of the development tasks done, you can use the following commands to publish your web app:
cd ~/myfirstwebappdotnet publish
You can find the published web app in the ~/myfirstwebapp/bin/Debug/netcoreapp3.1
directory
Process crashes happen. In order to keep your web app online, it’s a good idea to have a process managment tool, such as Supervisor, to monitor and restart the crashed web app processes.
(Optional) Before using supervisor you must install EPEL YUM:
yum install epel-release
On CentOS 7, you can install Supervisor using YUM:
sudo yum install supervisor -y
Next, you need to setup a dedicated Supervisor config file for your web app:
cd /etc/supervisord.d
sudo vi myfirstwebapp.conf
hoặc
nano /etc/supervisord.d/myfirstwebapp.conf
Populate the file:
`program:apphoclaptrinh`
command=dotnet tuhoclaptrinh.top.dll
directory=/home/app/netcore/tuhoclaptrinh.top/bin/Debug/netcoreapp3.1/publish
environment=ASPNETCORE__ENVIRONMENT=Production
user=root
stopsignal=INT
autostart=true
autorestart=true
startsecs=1
stderr_logfile=/var/log/tuhoclaptrinh.err.log
stdout_logfile=/var/log/tuhoclaptrinh.out.log
Save and quit:
:wq!
Next, you need to modify the default supervisord
config file to include the config file we've created:
sudo cp /etc/supervisord.conf /etc/supervisord.conf.bak
sudo vi /etc/supervisord.conf
Find the last line:
files = supervisord.d/*.ini
Replace it:
files = supervisord.d/*.conf
Save and quit:
:wq!
Start Supervisor and set it to automatically start at system startup:
sudo systemctl start supervisord.service
sudo systemctl enable supervisord.service
Load the new Supervisor settings:
sudo supervisorctl reread
sudo supervisorctl update
Now, you can use the following command to show the app’s status:
sudo supervisorctl status
The output will look like the following:
myfirstwebapp RUNNING pid 3925, uptime 0:08:45
Next, you can try to kill the app’s process by specifying the pid 9612
:
sudo kill -s 9 9612
Wait for a while, and then check the status again:
sudo supervisorctl status
This time, the output will indicate that the app did break down and automatically started:
myfirstwebapp RUNNING pid 3925, uptime 0:00:06
In order to facilitate visitors’ access, you can install Nginx as a reverse proxy to pass web traffic to port 5000
.
Install Nginx using YUM:
sudo yum install nginx -y
Edit the default Nginx config file as follows:
sudo cp /etc/nginx/nginx.conf /etc/nginx/nginx.conf.baksudo vi /etc/nginx/nginx.conf
Find the following segment within the http {}
segment:
location / {}
server {
listen 80;
server_name tuhoclaptrinh.top *.tuhoclaptrinh.top;
location / {
proxy_pass http://127.0.0.1:5000;
proxy_http_version 1.1;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection keep-alive;
proxy_set_header Host $host;
proxy_cache_bypass $http_upgrade;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $scheme;
}
}
server {
listen 443 ssl;
server_name tuhoclaptrinh.top app.tuhoclaptrinh.top;
ssl_certificate /etc/letsencrypt/live/tuhoclaptrinh.top/fullchain.pem;
ssl_certificate_key /etc/letsencrypt/live/tuhoclaptrinh.top/privkey.pem;
ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
ssl_prefer_server_ciphers on;
ssl_ciphers EECDH+CHACHA20:EECDH+AES128:RSA+AES128:EECDH+AES256:RSA+AES256:EECDH+3DES:RSA+3DES:!MD5;
# Improve HTTPS performance with session resumption
ssl_session_cache shared:SSL:50m;
ssl_session_timeout 1d;
# DH parameters
ssl_dhparam /etc/nginx/ssl/dhparam.pem;
# Enable HSTS
add_header Strict-Transport-Security "max-age=31536000" always;
}
Insert six lines of reverse proxy settings between the braces as shown below:
location /
{
proxy_pass http://127.0.0.1:5000;
proxy_redirect off;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $scheme;
}
Save and quit:
:wq!
Start the Nginx service and then set it to start at system startup:
sudo systemctl start nginx.servicesudo systemctl enable nginx.service
you must non active selinux to access your folder application
vi /etc/sysconfig/selinux
search SELINUX and change with this :
SELINUX=disabled
restart server
sudo shutdown -r now
Before visitors can access the .NET Core web app on ports 80
and 443
, you need to modify firewall rules. so addSupport for remote Access and open port 5000 in firewall
sudo firewall-cmd --add-port=5000/tcp --permanentsudo firewall-cmd --reloadsudo firewall-cmd --list-all