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Hello, everyone, and this demo, I'm going to show you how to use the system, see, tell comment.

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System Seitel controls the System D system and service manager.

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We use System C tail command in order to interact and manage System D surfaces on units.

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System D is considered the heart of the Linux operating system.

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If I would like to list all the system units and surfaces, I can run the command system seitel then

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list.

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Then dash units.

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Then space dash dash type space service.

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It enter, as we can see here, list of all the system units and surfaces on the system.

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Now, if I would like to check the status of a surface, for example, I'm going to use the the H GTP

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deep surface in order to check the status of that of that sir surface to enter, as we can see right

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now.

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The status, it's active.

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If I would like to check the status of another surface, for example, network.

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Network manager, etranger, it's also active.

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And there is also, if I would like to check the status of the S.

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S h.

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D.

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That surface, same thing.

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Exactly.

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Now, if I would like to stop.

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Surface.

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I can use the same thing System told Tilden, rather, them to use the statis.

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I'm going to type stop then the name, for example.

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Let's try and network here.

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Network manager.

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Enter.

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Now I'm going to check the status of the network manager, who, as we can see here, it's inactive.

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If I would like to start the surface again.

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System C tailed and start network.

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It's network manager doing a hit enter.

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Dan, I'm going to try this system C two status, the network, as you can see here, it's active again.

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Sometimes if you would like to disable a certain surface and we did like we don't like that surface

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to be enabled anymore.

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So I'm going to use the class system C tell them to disable.

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Then after that, for example, network manager.

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I hit Enter Now the surface.

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It's the SERPELL.

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Now, if I would like to enable it again, I can use the comment enable.

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And sometimes you use the option Dash Nationale, which means that I would like this surface to be enable

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Ratner and I hit enter.

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You can see here know going to check the status of that surface network.

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Network manager hit Enter and it's active.

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So.

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If you'd would like to check a status, we tied the systems details sighted in the name of the service,

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there are many services that we have and the Linux operating system, if you'd like to start to surface.

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We used the start command.

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And if we would like to stop, we use the stop command.

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And sometimes if we would like to restart the surface again and we have some issues with the surface.

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For example, the network manager, I can use the command to restart Inter.

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Now, if I would like to check the status of the network, many your service, as you can see here,

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is active.

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If I would like to disable the service, I'm going to type the command system seat held in the sample.

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Then the name of the service.

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If I would like to enable any surface in the system, I can use the command system detailed then enable.

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Oh, if I would like to add dash dash now.

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Which means that I would like to enable the surface right now.

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Thus, conclude our session.

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Thank you.

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And see you.

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And next lesson.