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Full Discussion: owner Permission changed automatically
Operating Systems HP-UX owner Permission changed automatically Post 302596837 by methyl on Wednesday 8th of February 2012 11:37:18 AM
Old 02-08-2012
Finally managed to read the .jpg examples.

The issue is with these commands. I've posted them as comments
because we don't want people executing them.
Code:
# bad line 1 # vi /etc/passwd
# bad line 2 # cp -rf /etc/skel/.* /home/selva/
# bad line 3 # chmod -R selva:users /home/selva/.*
# bad line 4 # chown -R selva:users /home/selva/.*

1) NEVER use "vi" on /etc/passwd. If you are expert, use the "vipw" command, but in your case you probably just needed "view".

2) This command is terrifying. Try this to see what I mean:
ls /etc/skel/.*
Compared with:
ls /etc/skel/.??*

3) This command is a syntax error and didn't do anything.

4) This command is terrifying. Try this to see what I mean:
ls /home/selva/.*
Compared with:
ls /home/selva/.??*

The problem is your use of ".*" when you expected it to match filenames starting with a "." . It actually expanded the the parent directory "." in both occasions. Your problem was made so much worse by using recursive (-r/-R) and overwrite (-f) options to commands when there was no point in that context.
It should be possible to use the "ls" commands I posted above to determine which files were copied or changed in error. However because you used the "-f" switch to "cp" be careful about detecting files which were overwritten (if any).
It's such a mess that it may be quicker to go back to backup, but it depends on how many files you had in /home and whether all permissions are easy to fix.

The change of permissions of some files in /usr /var /opt will be because many of the original files in /etc are LINKS and having copied the lot to /home/selva your commands then issue a recursive "chown" on the copies. Scary. I'm surprised that this system is still running, but don't reboot the system without repairing all the permissions of system files.

QED.
Last edited by methyl; 02-08-2012 at 01:02 PM.. Reason: typos (lots)
 

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LEARN ABOUT DEBIAN

sss_useradd

SSS_USERADD(8)							 SSSD Manual pages						    SSS_USERADD(8)

NAME

       sss_useradd - create a new user

SYNOPSIS

       sss_useradd [options] LOGIN

DESCRIPTION

       sss_useradd creates a new user account using the values specified on the command line plus the default values from the system.

OPTIONS

       -u,--uid UID
	   Set the UID of the user to the value of UID. If not given, it is chosen automatically.

       -c,--gecos COMMENT
	   Any text string describing the user. Often used as the field for the user's full name.

       -h,--home HOME_DIR
	   The home directory of the user account. The default is to append the LOGIN name to /home and use that as the home directory. The base
	   that is prepended before LOGIN is tunable with "user_defaults/baseDirectory" setting in sssd.conf.

       -s,--shell SHELL
	   The user's login shell. The default is currently /bin/bash. The default can be changed with "user_defaults/defaultShell" setting in
	   sssd.conf.

       -G,--groups GROUPS
	   A list of existing groups this user is also a member of.

       -m,--create-home
	   Create the user's home directory if it does not exist. The files and directories contained in the skeleton directory (which can be
	   defined with the -k option or in the config file) will be copied to the home directory.

       -M,--no-create-home
	   Do not create the user's home directory. Overrides configuration settings.

       -k,--skel SKELDIR
	   The skeleton directory, which contains files and directories to be copied in the user's home directory, when the home directory is
	   created by sss_useradd.

	   This option is only valid if the -m (or --create-home) option is specified, or creation of home directories is set to TRUE in the
	   configuration.

       -Z,--selinux-user SELINUX_USER
	   The SELinux user for the user's login. If not specified, the system default will be used.

       -h,--help
	   Display help message and exit.

THE LOCAL DOMAIN

       In order to function correctly, a domain with "id_provider=local" must be created and the SSSD must be running.

       The administrator might want to use the SSSD local users instead of traditional UNIX users in cases where the group nesting (see
       sss_groupadd(8)) is needed. The local users are also useful for testing and development of the SSSD without having to deploy a full remote
       server. The sss_user* and sss_group* tools use a local LDB storage to store users and groups.

SEE ALSO

       sss_groupadd(8), sss_groupdel(8), sss_groupshow(8), sss_groupmod(8), sss_userdel(8), sss_usermod(8).

AUTHORS

       The SSSD upstream - http://fedorahosted.org/sssd

SSSD
								    03/04/2013							    SSS_USERADD(8)
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