Shulou(Shulou.com)06/02 Report--

In this issue, the editor will bring you the methods of linux viewing service. The article is rich in content and analyzed and described from a professional point of view. I hope you can get something after reading this article.

Service (service)

The service is equivalent to some necessary programs that support the system to run. If it runs silently in the background of the system, it can provide some more distinctive things for the application, such as playing MP3, opening a service that plays MP3, the user clicks the start button to notify the service to open, and click the close button to notify the service to shut down. If you disable this service, it is not possible for others to play MP3. And services are likely to depend on each other.

Service and process?

Someone replied, "there will be a process corresponding to which service in the service task manager you have opened."

Some people say that a service is a collection of processes that start each opportunity according to the service startup mode, and the service may include many processes. And the initiated processes may intersect each other. 、

Linux Service:

The service in Linux is a kind of process resident in memory, which runs continuously in the background after startup, because this kind of process is usually responsible for some functions provided by the system to serve the tasks of users, so this kind of process is called service, such as crond, atd, syslog, Apache are all services, and the service is called daemon process. From its English meaning, we can see the characteristics of this kind of process.

Linux View Service:

First, use the process to view

Ps-aux | grep xxx in the command is to check whether a process or service exists.

Second, using the services command

1. View the running status of a single service:

Service service name status

For example: [root@localhost ~] # service sshd status

Openssh-daemon (pid 3701) is running …

two。 View the running status of all services:

Service-status-all above is the way to view the linux service shared by the editor. If you happen to have similar doubts, please refer to the above analysis to understand. If you want to know more about it, you are welcome to follow the industry information channel.

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