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CentOS versus Ubuntu?

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Both CentOS and Ubuntu can be optimized for hosting large websites. CentOS is known for its stability and security, while Ubuntu is known for its ease of use and versatility. Ultimately, the choice depends on your preference and familiarity with the two operating systems. Some web hosting providers prefer CentOS because of its long-term support and stability, while others may prefer Ubuntu because of its newer software packages and more user-friendly interface. It's important to consider your specific needs and requirements before choosing which operating system to use for your hosting.
 
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How to set up nginx on this system?
Sure, here are the steps to install and set up Nginx on CentOS:

1. Update your CentOS package repositories:
Code:
sudo yum update
2. Install the Nginx package:
Code:
sudo yum install nginx
3. Once the installation is complete, start the Nginx service:
Code:
sudo systemctl start nginx
4. To verify that the service has started, run the following command:
Code:
sudo systemctl status nginx
5. By default, Nginx is set to start automatically when the system starts up. To ensure this, run the following command:
Code:
sudo systemctl enable nginx
6. Now, if you visit your server's IP address in a web browser, you should see the Nginx welcome page.

That's it! Nginx is now set up and running on your CentOS system. From here, you can configure it further according to your needs.
 
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I thought CentOS was an upstream release now and not stable anymore.
You are correct. In December 2020, CentOS announced that it was shifting its focus to CentOS Stream, which serves as an upstream development branch for RHEL. As a result, CentOS 8 will no longer receive updates after the end of 2021, and CentOS 7 will no longer receive full support after the end of June 2024.

However, there are still many hosting providers that offer CentOS 7 and CentOS 8 as stable and reliable operating systems for their customers. It's important to check with your hosting provider to see what operating systems they offer and what kind of support they provide for them. Alternatively, you may want to consider using a different Linux distribution such as Ubuntu, Debian or Fedora which are popular alternatives.
 
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Is Fedora even stable for production use?
Fedora is generally considered a cutting-edge distribution, which means that it is optimized for the latest hardware and software, and it tends to receive frequent updates. As a result, it may not be as stable as some other Linux distributions such as CentOS or Debian, especially when it comes to production environments where optimal stability and reliability are crucial.

That being said, Fedora can still be suitable for certain production use-cases that require newer software packages or specific features that are available in Fedora. For example, Fedora may be a good choice for developers or researchers who need access to the latest development tools, or for organizations with well-defined testing and release processes. Before using Fedora for production purposes, it's important to carefully evaluate its stability, security, and compatibility with your specific use-case, and to develop appropriate processes for updating and maintaining the system.
 
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Describe this part please
This command instructs the system to check the current status of the Nginx service. When you run the command sudo systemctl status nginx, the system should output information about whether the service is running or not. If Nginx is running normally, you should see a message indicating that the service is "active (running)". This means that Nginx is working correctly on your system. In addition to this message, the output may also provide additional information about the Nginx service status, such as the PID (process ID) of the running process, memory usage and other details.

And what should I see to understand that everything works?
When you run the command sudo systemctl status nginx, you should see a message indicating that the Nginx service is active and running. You may also see additional details about the service status, such as the PID (process ID) of the running process, memory usage and other details.

If Nginx is not running, the output will indicate that the service is not active or not running, and may provide additional information about the cause of the problem. In this case, you may need to troubleshoot the issue to determine why Nginx is not starting.

Assuming the service is active and running, you can further verify that Nginx is working correctly by opening a web browser and navigating to your server's IP address or hostname. If Nginx is installed and configured correctly, you should see the default Nginx welcome page.
 
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Describe this part please
The command "sudo systemctl status nginx" is used to check the status of the Nginx web server service running on your CentOS system.

When you run this command, the output will contain information about the current state of the service, including whether it is active or inactive, when it was last started, and any errors that have occurred.

If everything is set up correctly, you should see a message that says "active (running)" in the output. This means that the Nginx service is up and running on your system, and you can start configuring it as needed. If you see a message that says "inactive (dead)" or "failed", then there may be a problem with the service, and you'll need to investigate further to determine the cause.

And what should I see to understand that everything works?
Here's an example output that confirms everything is working when you run the sudo systemctl status nginx command:

Code:
● nginx.service - The nginx HTTP and reverse proxy server
   Loaded: loaded (/usr/lib/systemd/system/nginx.service; enabled; vendor preset: disabled)
   Active: active (running) since Mon 2021-08-23 10:23:05 UTC; 1h 6min ago
     Docs: http://nginx.org/en/docs/
  Process: 2484 ExecStart=/usr/sbin/nginx -c /etc/nginx/nginx.conf (code=exited, status=0/SUCCESS)
 Main PID: 2485 (nginx)
   CGroup: /system.slice/nginx.service
           ├─2485 nginx: master process /usr/sbin/nginx -c /etc/nginx/nginx.conf
           └─2486 nginx: worker process

Aug 23 10:23:05 centos systemd[1]: Starting The nginx HTTP and reverse proxy server...
Aug 23 10:23:05 centos nginx[2484]: nginx: the configuration file /etc/nginx/nginx.conf syntax is ok
Aug 23 10:23:05 centos nginx[2484]: nginx: configuration file /etc/nginx/nginx.conf test is successful
Aug 23 10:23:05 centos systemd[1]: Started The nginx HTTP and reverse proxy server.

In this output, you can see that the Nginx service is active and running, with a process ID (PID) of 2485. You can also see that there is a master process and a worker process running. Additionally, you can see that the service was started successfully.

If you see this same output or something similar to it, then everything is working correctly, and you can proceed with configuring Nginx for your needs. If there are any errors shown in the output or the service status is inactive or failed, then there may be an issue with your Nginx installation or configuration that needs to be resolved before it will work correctly.
 
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Developer
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The command "sudo systemctl status nginx" is used to check the status of the Nginx web server service running on your CentOS system.

When you run this command, the output will contain information about the current state of the service, including whether it is active or inactive, when it was last started, and any errors that have occurred.

If everything is set up correctly, you should see a message that says "active (running)" in the output. This means that the Nginx service is up and running on your system, and you can start configuring it as needed. If you see a message that says "inactive (dead)" or "failed", then there may be a problem with the service, and you'll need to investigate further to determine the cause.


Here's an example output that confirms everything is working when you run the sudo systemctl status nginx command:

Code:
● nginx.service - The nginx HTTP and reverse proxy server
   Loaded: loaded (/usr/lib/systemd/system/nginx.service; enabled; vendor preset: disabled)
   Active: active (running) since Mon 2021-08-23 10:23:05 UTC; 1h 6min ago
     Docs: http://nginx.org/en/docs/
  Process: 2484 ExecStart=/usr/sbin/nginx -c /etc/nginx/nginx.conf (code=exited, status=0/SUCCESS)
Main PID: 2485 (nginx)
   CGroup: /system.slice/nginx.service
           ├─2485 nginx: master process /usr/sbin/nginx -c /etc/nginx/nginx.conf
           └─2486 nginx: worker process

Aug 23 10:23:05 centos systemd[1]: Starting The nginx HTTP and reverse proxy server...
Aug 23 10:23:05 centos nginx[2484]: nginx: the configuration file /etc/nginx/nginx.conf syntax is ok
Aug 23 10:23:05 centos nginx[2484]: nginx: configuration file /etc/nginx/nginx.conf test is successful
Aug 23 10:23:05 centos systemd[1]: Started The nginx HTTP and reverse proxy server.

In this output, you can see that the Nginx service is active and running, with a process ID (PID) of 2485. You can also see that there is a master process and a worker process running. Additionally, you can see that the service was started successfully.

If you see this same output or something similar to it, then everything is working correctly, and you can proceed with configuring Nginx for your needs. If there are any errors shown in the output or the service status is inactive or failed, then there may be an issue with your Nginx installation or configuration that needs to be resolved before it will work correctly.
Good boy
 
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Describe this part please
Sure, let me describe the command
Code:
sudo systemctl status nginx
for you:

-
Code:
sudo
: this is a command prefix that allows you to run the subsequent command with administrative privileges. You will be prompted for your password before the command is executed.

-
Code:
systemctl
: this is a command used for controlling services on a systemd-based Linux system. It is responsible for starting and stopping services, checking their status, and more.

-
Code:
status
: this is a parameter to the
Code:
systemctl
command that instructs it to display the current status of the specified system service.

-
Code:
nginx
: this is the name of the system service that you want to check the status of. If Nginx is running, you will see information about the service's current state, including whether it is active, the process ID (PID) of the Nginx process, and more. If Nginx is not running, you will see a message indicating that the service is inactive.

To confirm that everything is working with Nginx, you should see output similar to the following:

Code:
● nginx.service - The nginx HTTP and reverse proxy server
   Loaded: loaded (/usr/lib/systemd/system/nginx.service; enabled; vendor preset>
   Active: active (running) since Tue 2021-05-18 10:26:23 UTC; 24s ago
  Process: 5537 ExecStart=/usr/sbin/nginx (code=exited, status=0/SUCCESS)
 Main PID: 5538 (nginx)
   CGroup: /system.slice/nginx.service
           ├─5538 nginx: master process /usr/sbin/nginx
           └─5539 nginx: worker process
           
May 18 10:26:23 centos8 systemd[1]: Starting The nginx HTTP and reverse proxy server...
May 18 10:26:23 centos8 nginx[5537]: nginx: the configuration file /etc/nginx/nginx.conf syntax is ok
May 18 10:26:23 centos8 nginx[5537]: nginx: configuration file /etc/nginx/nginx.conf test is successful
May 18 10:26:23 centos8 systemd[1]: Started The nginx HTTP and reverse proxy server.

This output shows that the Nginx service is active and running, and you can expect your web server to work correctly.

And what should I see to understand that everything works?
When you run the command
Code:
sudo systemctl status nginx
, you should see output similar to the following:

Code:
● nginx.service - The nginx HTTP and reverse proxy server
   Loaded: loaded (/usr/lib/systemd/system/nginx.service; enabled; vendor preset>
   Active: active (running) since Tue 2021-05-18 10:26:23 UTC; 24s ago
  Process: 5537 ExecStart=/usr/sbin/nginx (code=exited, status=0/SUCCESS)
 Main PID: 5538 (nginx)
   CGroup: /system.slice/nginx.service
           ├─5538 nginx: master process /usr/sbin/nginx
           └─5539 nginx: worker process
           
May 18 10:26:23 centos8 systemd[1]: Starting The nginx HTTP and reverse proxy server...
May 18 10:26:23 centos8 nginx[5537]: nginx: the configuration file /etc/nginx/nginx.conf syntax is ok
May 18 10:26:23 centos8 nginx[5537]: nginx: configuration file /etc/nginx/nginx.conf test is successful
May 18 10:26:23 centos8 systemd[1]: Started The nginx HTTP and reverse proxy server.

This output shows that the Nginx service is active and running, and you can expect your web server to work correctly. If you see any errors or warnings in the output, you may need to further troubleshoot your Nginx configuration.