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Linux Sysadmin Basics — User Account Management

admin by admin
April 30, 2020
in Lập Trình Linux
36
Linux Sysadmin Basics — User Account Management



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About the Video:

Learn how to create new users on Linux (and how to remove Linux users). This video gives you a quick rundown of basic Linux commands like useradd, userdel, and usermod.

As a bonus, you’ll learn what actually happens behind the scenes when a new user is created in Linux. We’ll look at /etc/passwd, /etc/shadow, /etc/group, and a bunch of other things you might have been too scared to look at until now.

Nguồn: https://codeigniterbrasil.com

Xem thêm bài viết khác: https://codeigniterbrasil.com/lap-trinh-linux/

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Comments 36

  1. Jeff Abreu says:
    2 years ago

    How do I reset my sudo password on Linux? I'm trying to teach myself Linux with your videos hoping to learn and land an IT or cybersecurity job.

    Reply
  2. HarmInTrying says:
    2 years ago

    @5:10 …"Get rid of some of these users before you push it online… use containerization… million open doors for bad guys to walk through" Ugh. I guess opening ports on my server BEFORE I finished your tutorials was an especially bad idea. Whoops. Close the blast doors! Close the blast doors!

    My already infected network, "open the blast doors! Open the blast doors!"

    Reply
  3. Adam Goszka says:
    2 years ago

    It is a great tutorial man!
    Thank you a lot!

    Reply
  4. Monica Anselmo says:
    2 years ago

    You are my favourite Linux teacher!! They are actually the geekiest and funniest! Thanks for your informative videos which I thorougly enjoyed.

    Reply
  5. joe poor says:
    2 years ago

    ty

    Reply
  6. Escape the Matrix says:
    2 years ago

    Good stuff!

    Reply
  7. Suharto Gutur says:
    2 years ago

    Any reason why a black box sometimes appears? Is it related with security?

    Reply
  8. Pippymint says:
    2 years ago

    I can hear your server room in the background ;).

    Reply
  9. wolfgang germain says:
    2 years ago

    how do I get that bottom bar you have that gives additional stats?

    Reply
  10. Parsa Kalantari says:
    2 years ago

    This man is prophete

    Reply
  11. Duja Johnson says:
    2 years ago

    Finally learned how to run terminal in root mode. Getting prompted for password every time was annoying! Thanks

    Reply
  12. Alexus Wong says:
    2 years ago

    God this tutorial is so good.

    Reply
  13. Simon Liljestrand says:
    2 years ago

    "rm -rf /home/schnerg/"
    I too like to live dangerously 😛

    Reply
  14. George Reeberg says:
    2 years ago

    Awesome videos!

    Reply
  15. Mon Day says:
    2 years ago

    Nice example – One thing I find confusing in the example: most users seem to have a group named exactly as the user itself. It can be confusing in my mind, if you really need an own group (as opposed to joining an existing group), I would create group <username>_groupX. If a user has a group with the same name, and nobody else joins that group, it's the perfect example of a totally useless group

    Reply
  16. Mon Day says:
    2 years ago

    It's funny that /etc/passwd ( the password file ) stores …. well, no passwords. I guess that on a sunny afternoon in 1973, it did store passwords literally in there

    Reply
  17. John Smith says:
    2 years ago

    I got a lot of good stuff from this video. Thank you.

    Reply
  18. Mr. Suhaib says:
    2 years ago

    whats the significance of tailing those three files? which one shows what? shadow shows exclamation marks but passwd doesnt? Then whats the point of checking out etc/group?

    Reply
  19. Nick Sabino says:
    2 years ago

    Sir your tutorial is great godbless you 🙂

    Reply
  20. Imran Mattu says:
    2 years ago

    How can I restrict users to access only few things especially for mca students

    Reply
  21. Horrible Coder says:
    2 years ago

    https://opensourceforu.com/2017/02/linuxsusadmin/
    I recommend this after this lecture. If this lecture is pizza then this above link is soft drink.

    Reply
  22. maths soso says:
    2 years ago

    please, what dis you do at 14:25?

    Reply
  23. ill-fated Stranger says:
    2 years ago

    Good tutorial but sound quality is not good

    Reply
  24. Everything Awesome says:
    2 years ago

    can you explain to use what hte default usernames on linux are because i get a huge list of users and im like wtf? how do i know some of these are not hackers adding user accounts on my system. thanks !

    Reply
  25. AN Vary says:
    2 years ago

    I want to know the date that i created my user account. how can i check it?

    Reply
  26. Yash Lakha says:
    2 years ago

    this guy really understands the concept of open source…….#knowledge is free #knowledge is for everyone

    Reply
  27. Xд Lдсдд says:
    2 years ago

    99999 days are 390 years

    Reply
  28. Marcin Pe says:
    2 years ago

    Great tutorial, thanks 😉 Greetings from PL

    Reply
  29. Danny Calise says:
    2 years ago

    Watching your series now.. Appreciate the work you put into these.

    Reply
  30. Ryuudo123 says:
    2 years ago

    im missing the need for all this.
    Sure we know how to check if a user has a password, and if he doesn't then he cant login…but whats Shadow?whats the difference between that and the passwd folder?
    whats the etc folder? why would we want to use the shell to add a user? isn't there an easier way? (or that question implies I should stick to Windows? :P)

    Reply
  31. Johnny Phan says:
    2 years ago

    if root want to give access file to a user.

    How do I do that?

    Reply
  32. Jack Frost says:
    2 years ago

    Do you have updated vids?
    As 'Man useradd' shows there is now an updated command which is 'adduser'?

    Reply
  33. Mo says:
    2 years ago

    You are awesome!!! Love the way you explain things. And now I shall continue binge watching the rest of this course ><

    Reply
  34. Brooks Burris says:
    2 years ago

    I really love these videos! I'm having trouble with the add user command though it doesn't work exactly like it does on yours. It keeps giving me a message back that I don't understand even though I typed it exactly like it was on your computer. I was even in the same pwd as you.

    Reply
  35. ctrlPain says:
    2 years ago

    You make the best linux tutorials i know. Want to see more console windows 😉

    Reply
  36. cdoublejj says:
    2 years ago

    sue-doo

    Reply

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