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I created a new username called user01. Then, I used usermod to grant permissions with another user.
After that, I logged out and login as user 02 but can access to /home/user01
[user02#SRV01 ~]$ cd /home/user01/
-bash: cd: /home/user01/: Permission denied
I checked the directory and permisions of /home/user01 and user by this commands:
[user02#SRV01 ~]$ ls -ltrh / | grep home
drwxr-xr-x. 10 root root 4,0K feb 19 2019 home
[user02#SRV01 ~]$ ls -ltrh /home | grep user01
drwxrwxr-x+ 17 user01 user01 4,0K nov 26 18:14 user01
root#SRV01 /home # id user02
uid=509(user02) gid=500(user01) grupos=500(user01),511(user02)
What's the exactly problem? Thank's in advance
The plus sign at the end in the listing of user01 directory implies the use of ACL. (Access Control Lists)
For more information on the permissions, use getfacl command.
That should show that the user02 has read-execute access on the directory user01.
If the appropriate setting is not there, you'll need to do that using setfacl.
For example,
setfacl -m u:user02:x user01
setfacl -m u:user02:r user01
I hope this works!
You can play around with them after reading more on man page of the getfacl/setfacl commands.
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Closed 6 years ago.
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Simple question: I have a user called "user" on my system. This user has sudo privileges. Why can't I browse into the sudoer.d directory then?
Is it because cd is a built-in command?
[user#localhost etc]$ ls -al | grep sudoers.d
drwxr-x---. 2 root root 4096 Apr 4 18:09 sudoers.d
[user#localhost etc]$ sudo cd sudoers.d
[user#localhost etc]$ pwd
/etc
[user#localhost etc]$ sudo ls -la sudoers.d/
total 12
drwxr-x---. 2 root root 4096 Apr 4 18:09 .
drwxr-xr-x. 79 root root 4096 May 5 05:20 ..
-r--r-----. 1 root root 33 Apr 4 18:09 vagrant
[user#localhost etc]$ sudo vim sudoers.d/vagrant
[user#localhost etc]$
Thanks a lot.
It happens because sudo simply executes the command executable you pass to it with elevated privileges, and forwards the rest of arguments. Since cd is a shell builtin, sudo won't find the file to execute, which results in an error.
If you wish to have an interactive shell with elevated privileges, use sudo su
sudo opens a new shell. That shell changes its working directory. And then it exits. The original shell's working directory is never changed, nor can it be.
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I have problem with Ubuntu.
I'm trying add user tbalicek to group www-data but the following commands doesn't work.
tbalicek#UBK-LINUX:/var/www$ sudo usermod -a -G www-data tbalicek
tbalicek#UBK-LINUX:/var/www$ groups
tbalicek sudo
tbalicek#UBK-LINUX:/var/www$ groups tbalicek
tbalicek : tbalicek www-data
I don't understand why groups and groups tbalicek return different results?? When I'm loged like tbalicek
When I'm trying mkdir like tbalicek in folder where si own group www-data I get: permission denied
tbalicek#UBK-LINUX:/var/www$ ls -ltr
total 20
-rwxrwxr-x 1 www-data www-data 31 Mar 27 13:52 index.php
drwxrwxr-x 9 www-data www-data 4096 Mar 27 17:16 pelnar
drwxrwxr-x 16 www-data www-data 4096 Mar 27 17:21 redmine
drwxrwxr-x 9 www-data www-data 4096 Apr 3 17:54 taskagent
-rwxrwxr-x 1 root root 22 Apr 10 14:35 info.php
tbalicek#UBK-LINUX:/var/www$
Group assignments don't take effect in the current shell. You have to log out and log back in to see the group changes.
From the Debian Wiki for sudo:
After being added to a new group the user must log out and then log back in again for the new group to take effect. Groups are only assigned to users at login time. A most common source of confusion is that people add themselves to a new group but then do not log out and back in again and then have problems because the group is not assigned.
You might get a better response for this sort of question on ServerFault.
Try the newgrp command:
ts#cmp:~$ id
uid=1001(ts) gid=1001(ts) groups=1001(ts),27(sudo)
ts#cmp:~$ newgrp www-data
ts#cmp:~$ id
uid=1001(ts) gid=33(www-data) groups=1001(ts),27(sudo),33(www-data)
Just a nitpick, 'sudo adduser user group' will also add a user to a group and I find the syntax easier to remember than using usermod.
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Closed 9 years ago.
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When I copy with a command such as:
cp -R /myfolder /home/backup/
Will the permissions such as 775 (drwxr-xr-x) persist?
Will the owner 'danny:danny' persist, or will the owner change to the person who actually made the copy?
you can run cp -a to preserve the ownership. Note that to preserve root permissions, you must run with sudo.
Without this flag, ownership is not preserved.
If a user copy a file he will become the owner of it.
$ mkdir d1 && touch d1/f1
$ sudo cp -R d1 d2
$ ls -l
drwxr-xr-x 2 root root 4096 Oct 28 17:58 d2
$ ls -l d2/
-rw-r--r-- 1 root root 0 Oct 28 17:58 f1
It is cp -p to preserve the timestamps,ownership and permissions check out http://unixhelp.ed.ac.uk/CGI/man-cgi?cp
Thanks & Regards,
Alok Thaker
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Closed 9 years ago.
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Unable to change the permission of the cgi-bin. I want that folder to have write option for user too
abc#abc:~/public_html> ls -l
total 12
drwxr-xr-x 2 root root 4096 2013-10-24 11:16 cgi-bin
-rw-r--r-- 1 john users 835 2013-10-24 15:54 index.html
when i write
abc#abc:~/public_html> chmod 770 cgi-bin
error:
chmod: changing permissions of `cgi-bin': Operation not permitted
you should use
sudo chmod 770 cgi-bin
or to recursively change all files in the folder
sudo chmod -R 770 cgi-bin
You can also use this
$ sudo chmod -R 777 dirpath/filename
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Closed 7 years ago.
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On Ubuntu 12.04, the chown command doesn't seem to be working like it should
root#server:/var/www/folder/# ls -al
Running this puts out
drwxr-xr-x 11 776 sftponly 4096 Feb 17 14:08 Other_Folder
I need write permissions for the group, so I run:
chown -R 776 ./Other_Folder
Then when I run ls -al again, the output is still
drwxr-xr-x 11 776 sftponly 4096 Feb 17 14:08 Other_Folder
chown is used to change ownership of the file, not change permissions.
ls -al is not showing you who owns the file, just its permissions.
If root owns those files, you'll need to chown them properly, before you can change their permissions:
chown -R yourname:yourname folderName
Then as the owner you can change their permissions:
chmod -R 776 folderName
Edit:
I double checked the syntax and it seems to be right, you'll likely need to use sudo to use them.