WEBVTT 00:08.470 --> 00:10.290 Elephants will welcome back. 00:10.290 --> 00:13.760 Welcome to another important section of discourse series. 00:13.840 --> 00:14.270 OK. 00:14.400 --> 00:17.590 In this whole section we're going to talk about the use and management. 00:17.650 --> 00:19.580 OK so group managed. 00:19.650 --> 00:22.300 So how to sort of file permission. 00:22.560 --> 00:27.780 And a lot of things that we're going to learn in this whole section but in this lesson we're going to 00:27.780 --> 00:29.910 talk about the user management. 00:30.000 --> 00:36.120 So in this lesson I would like to show you how to use or how to delete the user and how to modify the 00:36.120 --> 00:37.030 user. 00:37.140 --> 00:44.130 And you also learn how to lock user accounts how to unlock them or how to set up the expiry date for 00:44.130 --> 00:45.180 the user accounts. 00:45.190 --> 00:45.510 OK. 00:45.570 --> 00:53.240 So let's see practically how Google does so first of all to show you how to add the user or how to create 00:53.250 --> 00:55.220 the user created user. 00:55.230 --> 01:00.830 There are two commands in the Linux that these user add and add user. 01:00.870 --> 01:08.220 So the basic difference is that when you use the user then it will see you on the information like full 01:08.220 --> 01:12.300 name your phone number like that things are good. 01:12.300 --> 01:19.870 Step by step and when you're using user come on you need to provide information with the help of sutures. 01:20.030 --> 01:20.650 OK. 01:20.670 --> 01:24.070 So let's see how to create a user with user add. 01:24.080 --> 01:24.740 Come on. 01:24.930 --> 01:30.550 So Grito or user Uniden Suro or administrator privilege. 01:30.750 --> 01:34.540 OK so sudo is right here. 01:34.590 --> 01:37.910 You need to provide the user name that you want to create. 01:37.920 --> 01:47.340 I want to create the users to you know here the user created ogee to view the user status. 01:47.340 --> 01:54.230 You can use a command change funnel an end user name. 01:54.540 --> 01:56.190 Permission denied. 01:56.750 --> 01:57.590 Sudo. 01:57.930 --> 02:04.860 And here you can see our user get created here you can see the date when the user is created. 02:04.860 --> 02:07.260 So our users get credit. 02:07.320 --> 02:11.530 But here you need to set up a password for this user. 02:11.610 --> 02:12.100 OK. 02:12.390 --> 02:20.130 Because when you are trying to switch the user like this make switch user come on and it will ask you 02:20.130 --> 02:24.590 for the password and you did not set any password for this user. 02:24.600 --> 02:31.230 So when you're trying to hit with blank password then here you can see it says authentication fail. 02:31.500 --> 02:37.230 So that means here you need to set up a password so to set up the password. 02:37.230 --> 02:38.820 You need to sudo. 02:39.040 --> 02:40.950 And here's the common possibility. 02:41.040 --> 02:41.830 OK. 02:41.940 --> 02:46.820 And the user name is still here. 02:46.980 --> 02:49.320 I asked for the password. 02:49.870 --> 02:52.480 You need to provide the same password twice. 02:52.680 --> 02:55.220 And here it says password updated. 02:55.230 --> 03:01.390 So now the user Steve until you asked for. 03:01.670 --> 03:01.940 OK. 03:01.940 --> 03:04.440 Now here we log in at Steve. 03:04.780 --> 03:05.120 OK. 03:05.140 --> 03:09.340 In this film you can add the user with the help of user add. 03:09.340 --> 03:11.240 Come on over here. 03:11.280 --> 03:12.400 There is one problem. 03:12.550 --> 03:14.540 So what is that problem. 03:14.560 --> 03:19.330 So just log in to home directly here. 03:19.550 --> 03:20.030 Yes. 03:20.080 --> 03:27.550 And here you can see there is no home directory created for us to here only the home directly present 03:27.550 --> 03:28.580 for Prashanth. 03:28.780 --> 03:33.310 So what do you create the home directory for this user. 03:33.310 --> 03:36.300 There are three ways to create the home directory. 03:36.310 --> 03:41.390 The first one is just create the directory with KTAR here. 03:41.710 --> 03:46.120 And of creating the directory with the name Stew. 03:46.390 --> 03:51.310 You need to get into BTC here inside this. 03:51.310 --> 03:59.020 Here you can see the folder Askia evil and you need to copy all the files from this directly to the 03:59.020 --> 04:02.350 folder that you created in the home directory. 04:02.350 --> 04:11.200 The second way to create the home directories you need to provide the option for him while adding the 04:11.200 --> 04:11.640 user. 04:11.640 --> 04:18.420 It will automatically create the home directory for the user of the before creating it. 04:18.520 --> 04:21.120 OK so the user is already created. 04:21.130 --> 04:27.360 So Hoku create the directory for it give us the four it from the CD. 04:27.550 --> 04:42.990 And here you just need to provide a common hole or underscore for the user so you now just get inside 04:43.150 --> 04:45.620 the home. 04:46.090 --> 04:50.630 And here we can see the home directory is created for you. 04:50.850 --> 04:51.600 OK. 04:51.880 --> 04:57.900 You can get inside Steve Ellis cookie. 04:58.590 --> 05:07.580 And now if you show all the hidden files here get in this way you can create the home directory. 05:07.680 --> 05:08.040 OK. 05:08.070 --> 05:09.590 After creating a user. 05:09.710 --> 05:15.770 And if you want to create the home directory while adding the user you can directly at the option I 05:15.990 --> 05:16.410 am. 05:16.470 --> 05:21.850 OK so suppose I want to create a user window. 05:22.070 --> 05:26.280 You have to one. 05:26.370 --> 05:26.700 OK. 05:26.720 --> 05:32.660 And I want to create a home directory for him so just provide hope for them and he dander. 05:32.810 --> 05:41.570 Now let's get inside the home palace and here again see city one home directories get triggered here. 05:41.660 --> 05:42.190 OK. 05:42.360 --> 05:43.600 Do you live with them. 05:43.610 --> 05:50.530 Option for this whole phantom switch in this way you can create a home directory while adding the user 05:50.540 --> 05:53.150 or after having the user name. 05:53.330 --> 05:59.150 So after setting up password and creating home directory the next thing that I would like to show you 05:59.150 --> 06:02.150 is of had the full name for the user. 06:02.210 --> 06:04.700 So you add the full name. 06:04.880 --> 06:07.040 There is a switch I fancy. 06:07.220 --> 06:07.650 OK. 06:07.880 --> 06:14.110 So of all hyphens see here Roy the name Jobs. 06:14.510 --> 06:19.460 Steve Jobs is my favorite So that's why I'm getting Steve Jobs user. 06:19.490 --> 06:25.970 So this will add new users to you to the full name Steve Jobs. 06:26.150 --> 06:30.590 And he didn't get no new user is valid. 06:30.950 --> 06:34.250 So just Qs. 06:34.780 --> 06:42.070 And Steve you know and here you can see the status of still too. 06:42.470 --> 06:45.210 So the full name is added here. 06:45.260 --> 06:51.960 So how do they stack or how to see that to see that you need to use the common finger the finger Kamani 06:52.000 --> 06:54.530 is not present in this environment. 06:54.530 --> 06:56.000 You need to install it. 06:56.000 --> 07:05.010 So first you need to use sudo to get install and think OK I already installed it on this machine. 07:05.080 --> 07:09.350 So use come on like this finger and the user name. 07:09.350 --> 07:11.150 So still do. 07:11.300 --> 07:19.730 And here you can see the user information that is the log in name its home directory and its cell and 07:19.730 --> 07:27.000 also its full name and get here the stooge OP's name is present that we added with the help of I see 07:27.550 --> 07:29.870 no of but adding the full name. 07:30.140 --> 07:35.010 Let me show you how to set up an expiry date for the user. 07:35.210 --> 07:41.410 So to set up an expiry date you need to use the option 1. 07:41.700 --> 07:42.150 OK. 07:42.320 --> 07:52.210 And of that hyphen you need to provide the month and day and the year I want. 07:52.310 --> 08:02.210 Clearly Steve 3 will get this food set up an expiry date for the user accounts D-3 and now you can 08:05.140 --> 08:12.370 still be know here you can see the expiry date for the user. 08:12.510 --> 08:12.950 OK. 08:13.140 --> 08:15.690 The first line shows the creator. 08:15.720 --> 08:19.380 And the next line shows us the expiry date. 08:19.470 --> 08:19.730 OK. 08:19.740 --> 08:25.710 This also shows us the information that is minimum number of days which could possible change the maximum 08:25.710 --> 08:31.020 number of days between possible change and number of days of warning before password expired. 08:31.030 --> 08:36.260 And a lot of things when you're going to learn about these things in detail in the next lesson. 08:36.420 --> 08:41.360 But for now remember we can set up an expiry date like this. 08:41.640 --> 08:41.880 OK. 08:41.910 --> 08:47.600 Now of course setting up the expiry date I want to explain something about user IDs or the groups. 08:47.690 --> 08:48.130 OK. 08:48.360 --> 08:57.270 So with I come on here you can list various ideas about the user that are present on your system. 08:57.280 --> 08:58.120 OK. 08:58.350 --> 09:02.790 Now this is showing us the idea about depression. 09:03.720 --> 09:11.880 Now when I type the user name this is showing us the ID or group information about still one. 09:11.920 --> 09:14.980 You can also see about still do. 09:15.270 --> 09:20.760 So what is user id user ID is user by the server who identified the users. 09:20.920 --> 09:21.400 OK. 09:21.540 --> 09:29.370 We identify a user on the server with the help of name like Stu wants to do our present get but our 09:29.420 --> 09:36.470 server don't understand it with the help of name they identify a user base it on their user IDs. 09:36.750 --> 09:43.480 So in the Linux environment there are about 16 bids are available for creating the user accounts. 09:43.650 --> 09:44.210 OK. 09:44.340 --> 09:51.750 And set up their IDs so you can set up the user id from zero to sixty five thousand five hundred thirty 09:51.750 --> 09:52.260 five. 09:52.400 --> 09:52.900 OK. 09:53.100 --> 10:00.220 And if you're crossing this limit then you need to use the directory so what like open ended up and 10:00.250 --> 10:04.460 they use it id zero as a reserve for the account. 10:04.520 --> 10:04.940 OK. 10:05.130 --> 10:15.360 So you can set up a user ID for the user while creating it like here just need to provide the option 10:15.930 --> 10:23.080 for you and I need to provide the user id like 1000 or more. 10:23.220 --> 10:29.780 You can set up the user IDs starting from zero to sixty five thousand five hundred thirty five gates. 10:29.820 --> 10:33.670 You can set up any number but the zero number is reserved for google.com. 10:33.840 --> 10:37.940 So you can set up the user id with it for you. 10:38.190 --> 10:41.590 I'm not going to out here in a user id guess. 10:41.640 --> 10:46.760 I just want to show you and you can also set up the group Id be too high for me. 10:47.100 --> 10:52.010 So you can list the groups that are available with help of groups come on. 10:52.080 --> 10:58.270 So there are different groups Prashant the CD-ROM pseudo the IP block they are. 10:58.380 --> 11:02.700 These are the groups that are present in this system right now. 11:02.940 --> 11:07.510 So you can add the users to these groups while creating it. 11:07.630 --> 11:13.910 Suppose I want to add the user to the group. 11:13.980 --> 11:14.610 OK. 11:14.990 --> 11:22.060 Suppose the group is a let's see OK and I want to the next user Steve for it. 11:22.290 --> 11:29.410 So you know to write down the command like this with which capital G. 11:29.790 --> 11:34.200 Now bodies that is added to the group Alex. 11:34.380 --> 11:39.750 So possibly still for 11:44.460 --> 11:47.970 OK now switch user still for 11:51.160 --> 11:54.150 now we are again as before. 11:54.340 --> 11:57.280 And here you can list the groups. 11:57.280 --> 12:03.780 And here you can see the user still for is not become the member of staff for a group and also the LSD 12:03.790 --> 12:04.340 group. 12:04.600 --> 12:07.840 So now we have created lots of users here. 12:08.050 --> 12:15.820 So the last point that I would like to show here is how to set up a shell for a particular user. 12:15.880 --> 12:22.290 You can set up a particular shell or you can add a particular shell to the user while trading it. 12:22.320 --> 12:26.900 So there are differentials and that are supported in the Linux environment. 12:27.160 --> 12:32.920 You can see on your computer screen the kinds of shows that are supported in this Linux environment 12:33.440 --> 12:41.740 or you can also disable for a particular user shell access because not all users are required to access 12:41.770 --> 12:48.670 because if someone is having cell access then that users get messed up with you or fines you can modify 12:48.670 --> 12:52.120 your voice or began so damaged your files. 12:52.120 --> 12:56.510 So you can't restrict access to the cell with the help of this technique. 12:56.530 --> 13:08.350 So how to do this just provide the option like this pseudo user and unit deployed Ifan as and with hyphenates 13:08.380 --> 13:12.310 you can set up a different shell to get all of us to follow. 13:12.310 --> 13:13.710 Let's see here Piers. 13:13.750 --> 13:20.250 And here you can see here it shows us the bash versus the shell for the use recompression. 13:20.440 --> 13:25.340 So I want to go to the next few that use the rag. 13:25.690 --> 13:26.300 Yes. 13:26.320 --> 13:26.800 OK. 13:27.000 --> 13:30.950 I found this and I want to set up a shell for him. 13:31.000 --> 13:39.740 That is when SH SH And then the user name is still fine. 13:40.170 --> 13:46.350 Now to possibly five 13:50.890 --> 13:51.530 organs. 13:51.700 --> 13:58.210 Now user Steve file and get your password. 13:58.210 --> 14:03.930 And here you can see when I log in as I do for you I got a different cell. 14:04.170 --> 14:04.910 OK. 14:05.400 --> 14:10.190 Exit the system is still fine. 14:12.360 --> 14:12.670 OK. 14:12.840 --> 14:15.290 Now here we can see you got a different shell. 14:15.570 --> 14:19.040 In this way you can insert different cells. 14:19.170 --> 14:24.310 The users know of doing all these things with this user and. 14:24.310 --> 14:24.770 Come on. 14:24.780 --> 14:27.810 I would like to show you how to use the user more. 14:27.810 --> 14:36.600 Come on with user mode come on you can modify various things about the user so to modify the user just 14:36.680 --> 14:39.060 type single user mode. 14:39.210 --> 14:41.990 And here you need to provide the user name. 14:42.150 --> 14:47.340 But here you need to provide the option that you want to modify. 14:47.340 --> 14:51.820 So what I want to modify the full name for the user. 14:52.060 --> 15:04.410 It's still three days left for Google now stoop to having full name so commodified just pro-white pseudo 15:05.430 --> 15:06.910 user mode. 15:07.320 --> 15:21.960 See here roared name pressure and here user name stewe to get your boss for now. 15:22.470 --> 15:26.000 Let's go to. 15:26.130 --> 15:33.060 And here you can see the name is modify and this way you can use the user more c'mon modify various 15:33.060 --> 15:41.360 things you can modify user shell you can modify the user name or you can do a lot of things with various 15:41.360 --> 15:42.340 options. 15:42.510 --> 15:50.610 You can just see man and the more it shows you all the things that you can do with the help of these 15:50.740 --> 15:53.370 on is the long tail here. 15:53.700 --> 15:58.970 So I want to show you here are some of the important things that you can do. 15:59.010 --> 16:04.180 You can modify the shell with the help of option I guess. 16:04.390 --> 16:08.900 OK let's modify the shill for Stu 6. 16:08.940 --> 16:09.740 OK. 16:10.320 --> 16:13.500 So now here you are more skips x. 16:13.590 --> 16:14.210 OK. 16:14.400 --> 16:28.000 Now switch user still 6 Sulu possibly still 6. 16:28.350 --> 16:33.960 Ok now switch user Steve 6 16:37.090 --> 16:44.960 Get know we modified the shell for users to use X and we got a differential. 16:45.390 --> 16:45.780 OK. 16:45.810 --> 16:54.260 Now let's see how to ban or restrict special access for end user fields. 16:54.490 --> 16:55.070 No. 16:55.070 --> 16:55.650 All right. 16:55.680 --> 17:02.790 Go switch Steve 6. 17:03.030 --> 17:07.780 We only unable to log in at still 6. 17:07.830 --> 17:11.820 The next thing is the whole issue of how logged on the user. 17:12.140 --> 17:18.290 You can log on these records and we Typhon hell and you need to point the user name. 17:18.410 --> 17:22.520 I want to slow down still one 17:26.330 --> 17:31.340 I love it down and just switch user first log of 17:35.600 --> 17:41.900 trying to log in to one. 17:42.060 --> 17:43.740 It shows log an incorrect 17:49.360 --> 17:56.850 after this here or I'll find you this will unlock the user. 17:57.130 --> 18:02.930 Here it shows us the message unlocking the user password Grizzard or less outcome. 18:03.070 --> 18:10.770 So after unlocking it you could pull away or you need to set up a password for it. 18:10.780 --> 18:25.860 So Sudol pasta MDC-T one for password log of one into your password. 18:26.260 --> 18:26.810 OK. 18:26.840 --> 18:29.860 Now the logging is still one. 18:30.060 --> 18:34.410 This Wii you can modify the user accounts. 18:34.790 --> 18:35.940 You can log them. 18:35.960 --> 18:42.650 You can unlock them or get with the help of a user more money and you can do lot of things if you want 18:42.650 --> 18:43.440 to learn in depth. 18:43.460 --> 18:49.960 You can use man and use are more common to see the details. 18:50.090 --> 18:50.540 OK. 18:50.690 --> 18:57.250 So the last thing here to show you is how good delete the user accounts. 18:57.400 --> 19:00.820 So for that let me log in again. 19:01.190 --> 19:01.680 OK. 19:01.710 --> 19:09.650 On the inside hole ls and here you can see these are the users that we have created better having home 19:09.650 --> 19:10.330 directories. 19:10.330 --> 19:10.580 OK. 19:10.610 --> 19:12.770 There are lots of users that we created. 19:12.780 --> 19:21.920 That is from Stu who won still 6 so who are these users you need to Cloward wide user. 19:23.240 --> 19:24.380 The user name. 19:24.840 --> 19:34.700 So you get less in here you can see the users you get to work and the home directories still present 19:34.700 --> 19:35.610 here. 19:35.630 --> 19:46.730 So if you want to delete the user with this home directory unit deployed switch iPhone or OK we it already 19:46.730 --> 19:53.250 so point option 1 less. 19:53.530 --> 19:57.240 And here you can see still one home directory is get deleted. 19:57.400 --> 20:06.050 And if you want to remove this directory that is to you need to be a user Arkwright with him. 20:06.860 --> 20:09.740 Steam no less. 20:09.830 --> 20:13.110 You can see still directly he's get deleted. 20:13.940 --> 20:20.970 It this way you can delete all the users with the help of user they'll come on or you can modify Wikis 20:20.970 --> 20:25.080 are more common and also you can add them with user add. 20:25.080 --> 20:25.700 Come on. 20:25.860 --> 20:26.260 OK. 20:26.340 --> 20:26.940 So. 20:27.020 --> 20:27.420 OK. 20:27.450 --> 20:40.060 Finally I want to show you another common to create user daddies and user split screen pseudo user and 20:40.090 --> 20:42.710 user name. 20:43.050 --> 20:49.490 Now you does ask me to set up the password for this upcoming. 20:49.840 --> 20:55.300 Nobody's asking me for fullname. 20:55.910 --> 20:59.220 Rule number one thing for. 20:59.510 --> 21:02.120 It's not my real number. 21:02.470 --> 21:08.240 An order is not knows hosting me or is this information correct. 21:08.240 --> 21:08.780 Why. 21:08.900 --> 21:15.420 So in this way this user come on takes all the information one by one. 21:15.740 --> 21:19.610 You do need to provide the switches to insert the information. 21:19.840 --> 21:23.500 OK so the user Peirce's get created. 21:23.540 --> 21:35.910 So switch use SS password again here you can see we log in as do the SS exit sign here you can see the 21:35.910 --> 21:38.880 home directories that get created here. 21:39.100 --> 21:46.380 And users come on in this way you can manage users inside the Linux environment with all this come once 21:46.460 --> 21:46.940 again.