Name: Linux - グループ管理 (addgroup, delgroup, adduser, deluser) (Linux - Group Management (addgroup, delgroup, adduser, deluser))
Uploaded: 2021-01-14T10:10:25.000Z
Duration: 13 min 12 s
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So in this video, I'm going to show you how to do basic group management in the Lexx world.

Now it is important understand, in the Lenox world that their system for user's and groups and permissions is nowhere near as sophisticated and complicated as what there is in Windows, at least from the base installation level.

Obviously you can add service is you can add software to a Lennox server to create a complicated a security environment.

But the base installation of Lennox has a much simpler system, and then the Windows world does so.

Basically, whenever you're dealing with files and folders in the Lenox world and you're dealing with permissions, basically you have a permission for the owner of the the owner of the Filer folder.

You have permission for the group owner of the file folder and you have permission for everybody else.

So basically everybody else with those permissions, you have the ability to read, to write or to execute.

And so whenever you see something like 777 Those permissions go towards the owner of the filer folder, the group owner of the Tyler folder and then everybody else.

And so in the Lenox world, what you can do is you can do things, say, the owner of Filer folder.

Basically, this would be the equivalent of the full control permission in the Windows world.

Then you can have the group owner of the filer folder possibly only have the reader permission.

So let's say you, as a user, you're adding something to a folder, and then you want the group owners to be able to go in there and actually see what you're creating.

That's the kind of thing that you could do with permissions when you're dealing clinics world, and then obviously for everybody, you could then put that to zero.

You can basically give everybody no permission.

So whenever we're dealing with permissions, that's what we're going to be thinking about doing is we're gonna be thinking about the that the user account owner of a file folder.

We're gonna be thinking about the group owner of Filer folder and then we're going to be thinking about everybody else.

So when we create these groups, that's kind of the mind set.

What we're dealing with now, when we create groups and Lennox world again, when we're dealing with configurations, configurations all essentially more or less go into a text file.

So this is not like the Windows World where you have active directory databases and you have you have registries and all that kind of thing.

And Lennox world, it all gets dumped into a text file.

And so the text file you have four groups is a forward slash e TC forward slash group.

You can use them to open it up, and when you use them to open it up, you can see the group name and you can see the membership of the groups.

So what I'm gonna show you how to do today is I'm gonna show you how to open up that file.

I want to show you how to add Group's gonna show you how to add users to groups, want to show you how to remove users, front groups, and then I'm going to show you how to delete groups and then you'll understand the basic group maintenance and management in the Lenox world so that let's go over the computer and I can show you how this works.

I've got a bunch of server 18.4 point three running a virtual machine on virtual box.

Again, you could be running for toolbox, Windows, Mac book, Pro Lennox and Solaris.

If anybody still as Solaris out there on you should have the same environment be looking at it.

My route account that I've created for the server is Bob.

Of course, the password is 123456 And now we're logging in and yea were longer.

Now the first thing that I want to do is I want to show you that folder that contains the group information.

So Sud Oh, I'm not using pseudo them because I don't want to actually edit this file and senses a major configuration file for the operating system.

I don't want to accidentally do something right.

If I can prevent myself from accidentally doing something.

So I'm simply going to use them and sew them.

Since I Since I'm opening a protected file, I have the ability to read it, but not modified if I simply used them.

So I'm going to use just them without sue do to open it up and read only boat s.

So then I'm gonna do t t c a four slash group.

Okay, Now we can see we have the group file here, and I could go through and I can see the different groups eso these air, all the default groups that are created by you.

Bunty, when you install the operating system, these different groups have different permissions to do different things.

You know, we basically deal with different service is on politics and see the ADM here.

We have a system Log and Bob are users of the A t M group.

Who's when I'm angle To use a pseudo command?

You can see Bob is the only member of the pseudo group on and we could just you know, just scroll down and see all of these different groups here.

Eso Since I'm in them and it's read only mode, I have not done any tank.

I don't have the right quick because I haven't made any modifications and I am now out, eh?

So the first thing that I want to do is I want to create a group.

So to create a great I'm going have to use a pseudo uh Then I'm going to do add group command And then I'm simply going to add the group test group ready sample So pseudo at a group desk rip and didn't ask me for a password of 123456 And now a test group has been added.

I go to them for its last you t c for its last group.

Be now, open up the file again that it was going all the way down.

We can now see that I have a group called Test Group.

Sounds pretty easy again to get out here.

So now the next thing that I need to do is I need add same users to that group that I created.

So in order to do that, it's Sue Do add user user name group name Pretty soon S o.

L P h um And then I'll add Ralph to test group Enter adding user Ralph to group Test group.

And so now Bob will be added to test group, too.

So Bob has been added to test group if I now do them again.

I can get in her scrolled, wait out and there again.

So at the bottom of the screen, we can see Test group.

And now the members of Test Group are now Ralph and Bob.

So that's really that's basically what we're dealing with here.

Uh, then we can quit out of this clear, clean screen again.

And so now let's remove a user from that group.

And so, you know, Bob, Bob gets to do everything Bob gets to be everywhere.

So why don't we remove Bob from that group?

So what we're gonna do is we're simply going to use Della User User name group in a So we do sudo del Del User.

And then we're going to remove Bob from test group Examples.

Enter removing Bob from group guestroom way.

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Linux - グループ管理 (addgroup, delgroup, adduser, deluser) (Linux - Group Management (addgroup, delgroup, adduser, deluser))

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