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Linux:Users, Groups, Rights

(Változatok közti eltérés)
a (→Permissions)
(→Permissions)
 
(4 közbeeső változat nincs mutatva)
5. sor: 5. sor:
feri@aries:~$ touch Test
feri@aries:~$ touch Test
</code></megoldas>
</code></megoldas>
-
* Set privileges for this file: the owner must be able to read, write and execute, members of the group should read and execute, others do not have any permissions! <megoldas>
+
* Set permissions for this file: the owner must be able to read, write and execute, members of the group should read and execute, others do not have any permissions! <megoldas>
<code lang="bash">
<code lang="bash">
feri@aries:~$ chmod 750 Test
feri@aries:~$ chmod 750 Test
24. sor: 24. sor:
<code lang="bash">
<code lang="bash">
feri@aries:~$ chmod 4755 Test
feri@aries:~$ chmod 4755 Test
 +
OR
 +
feri@aries:~$ chmod u+s Test
</code></megoldas>
</code></megoldas>
* This file sould run with the group rights! <megoldas>
* This file sould run with the group rights! <megoldas>
29. sor: 31. sor:
feri@aries:~$ chmod 2755 Test
feri@aries:~$ chmod 2755 Test
</code></megoldas>
</code></megoldas>
-
* Create a directory named TestDir! How can you reach that all that all users be able create files there but be able to to delete only their own files in it! <megoldas>
+
* Create a directory named TestDir! How can you reach that all users be able create files there but be able to to delete only their own files in it! <megoldas>
<code lang="bash">
<code lang="bash">
-
feri@aries:~$ mkdir test
+
feri@aries:~$ mkdir testDir
-
feri@aries:~$ chmod 1777 test
+
feri@aries:~$ chmod 1777 testDir
</code></megoldas>
</code></megoldas>
* Create a directory named Common! It should be really common, all users must be able to create and delete any files in it. How can you reach it? <megoldas>
* Create a directory named Common! It should be really common, all users must be able to create and delete any files in it. How can you reach it? <megoldas>
39. sor: 41. sor:
feri@aries:~$ chmod 777 Kozos
feri@aries:~$ chmod 777 Kozos
</code></megoldas>
</code></megoldas>
-
* Ask your own identidier and your group identifier! <megoldas>
+
* Ask your own identifier and your group identifier! <megoldas>
<code lang="bash">
<code lang="bash">
feri@aries:~$ id
feri@aries:~$ id

A lap jelenlegi, 2024. március 21., 16:50-kori változata

Permissions

Kivonat: chmod, chown, chgrp, id, su
  • Create an empty file in your home directory named Test!
  • Set permissions for this file: the owner must be able to read, write and execute, members of the group should read and execute, others do not have any permissions!
  • Change the ownership of this file! The new owner should be the system administrator! (Why doesn't it work?)
  • Let the group of that file be the staff group! (Why doesn't it work?)
  • Change its privileges to: rw-r--r--! What does it exactly mean?
  • When other users run this file, they should have your rights. How can you reach that?
  • This file sould run with the group rights!
  • Create a directory named TestDir! How can you reach that all users be able create files there but be able to to delete only their own files in it!
  • Create a directory named Common! It should be really common, all users must be able to create and delete any files in it. How can you reach it?
  • Ask your own identifier and your group identifier!
  • Change to an anoter user temporary! (Use your classmate's name and password!)
  • Review the contens of the /etc/passwd and the /etc/group files! What are the meanings of fields in lines?
A lap eredeti címe: „https://wiki.koczka.hu/index.php/Linux:Users,_Groups,_Rights”
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