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Permessi utente con Sudo

Inviato: mar 22 ago 2017, 17:35
da hal9000
Ciao a tutti, vorrei che il mio utente potesse montare i dischi e spegnere il pc da riga di comando, ho quindi editato visudo e ho modifica il file così:

Codice: Seleziona tutto

## sudoers file.
##
## This file MUST be edited with the 'visudo' command as root.
## Failure to use 'visudo' may result in syntax or file permission errors
## that prevent sudo from running.
##
## See the sudoers man page for the details on how to write a sudoers file.
##

##
## Host alias specification
Host_Alias LO=zago

## Groups of machines. These may include host names (optionally with wildcards),
## IP addresses, network numbers or netgroups.
# Host_Alias	WEBSERVERS = www1, www2, www3

##
## User alias specification
#User_Alias ALEX=alex

## Groups of users.  These may consist of user names, uids, Unix groups,
## or netgroups.
# User_Alias	ADMINS = millert, dowdy, mikef
#User_Alias ADMINS = alex

##
## Cmnd alias specification
Cmnd_Alias MOUNT = /sbin/mount, /sbin/umount
Cmnd_Alias SHUTDOWN = /sbin/halt, /sbin/shutdown

## Groups of commands.  Often used to group related commands together.
# Cmnd_Alias	PROCESSES = /usr/bin/nice, /bin/kill, /usr/bin/renice, \
# 			    /usr/bin/pkill, /usr/bin/top
# Cmnd_Alias	REBOOT = /sbin/halt, /sbin/reboot, /sbin/poweroff

##
## Defaults specification
##
## You may wish to keep some of the following environment variables
## when running commands via sudo.
##
## Locale settings
# Defaults env_keep += "LANG LANGUAGE LINGUAS LC_* _XKB_CHARSET"
##
## Run X applications through sudo; HOME is used to find the
## .Xauthority file.  Note that other programs use HOME to find   
## configuration files and this may lead to privilege escalation!
# Defaults env_keep += "HOME"
##
## X11 resource path settings
# Defaults env_keep += "XAPPLRESDIR XFILESEARCHPATH XUSERFILESEARCHPATH"
##
## Desktop path settings
# Defaults env_keep += "QTDIR KDEDIR"
##
## Allow sudo-run commands to inherit the callers' ConsoleKit session
# Defaults env_keep += "XDG_SESSION_COOKIE"
##
## Uncomment to enable special input methods.  Care should be taken as
## this may allow users to subvert the command being run via sudo.
# Defaults env_keep += "XMODIFIERS GTK_IM_MODULE QT_IM_MODULE QT_IM_SWITCHER"
##
## Uncomment to use a hard-coded PATH instead of the user's to find commands
# Defaults secure_path="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
##
## Uncomment to send mail if the user does not enter the correct password.
# Defaults mail_badpass
##
## Uncomment to enable logging of a command's output, except for
## sudoreplay and reboot.  Use sudoreplay to play back logged sessions.
# Defaults log_output
# Defaults!/usr/bin/sudoreplay !log_output
# Defaults!/usr/local/bin/sudoreplay !log_output
# Defaults!REBOOT !log_output

##
## Runas alias specification
##

##
## User privilege specification
##
root ALL=(ALL) ALL

## Uncomment to allow members of group wheel to execute any command
#%wheel ALL=(ALL) ALL

#
## Same thing without a password
# %wheel ALL=(ALL) NOPASSWD: ALL
%wheel LO=MOUNT, NOPASSWD: ALL
%wheel LO=SHUTDOWN, NOPASSWD: ALL

## Uncomment to allow members of group sudo to execute any command
# %sudo	ALL=(ALL) ALL

## Uncomment to allow any user to run sudo if they know the password
## of the user they are running the command as (root by default).
# Defaults targetpw  # Ask for the password of the target user
# ALL ALL=(ALL) ALL  # WARNING: only use this together with 'Defaults targetpw'

## Read drop-in files from /etc/sudoers.d
## (the '#' here does not indicate a comment)
#includedir /etc/sudoers.d
Ho aggiunto l' utente alex al gruppo wheel ma se provo a montare i dischi con mount o a spegnere il pc con shutdown mi dice solo root può farlo.
Dove ho sbagliato? Dalle ricerche on line e sul forum di Slacky sembra tutto a posto, ma sicuramente qualcosa di errato deve esserci se non funziona. Grazie in anticipo per l' eventuale aiuto.

Re: Permessi utente con Sudo

Inviato: mar 22 ago 2017, 19:16
da erio
User privilege specification
root ALL=(ALL) ALL
ciao aggiungi il tuo utente a questa riga,ma mi sa che devi decommentare le linee che che ti servono alex e' commentato e wheel anche.

Re: Permessi utente con Sudo

Inviato: mer 23 ago 2017, 17:36
da hal9000
Grazie della risposta, ho fatto come hai detto:

Codice: Seleziona tutto

## sudoers file.
##
## This file MUST be edited with the 'visudo' command as root.
## Failure to use 'visudo' may result in syntax or file permission errors
## that prevent sudo from running.
##
## See the sudoers man page for the details on how to write a sudoers file.
##

##
## Host alias specification
Host_Alias LO=zago

## Groups of machines. These may include host names (optionally with wildcards),
## IP addresses, network numbers or netgroups.
# Host_Alias	WEBSERVERS = www1, www2, www3

##
## User alias specification
User_Alias ALEX=alex

## Groups of users.  These may consist of user names, uids, Unix groups,
## or netgroups.
# User_Alias	ADMINS = millert, dowdy, mikef
#User_Alias ADMINS = alex

##
## Cmnd alias specification
Cmnd_Alias MOUNT = /sbin/mount, /sbin/umount
Cmnd_Alias SHUTDOWN = /sbin/halt, /sbin/shutdown

## Groups of commands.  Often used to group related commands together.
# Cmnd_Alias	PROCESSES = /usr/bin/nice, /bin/kill, /usr/bin/renice, \
# 			    /usr/bin/pkill, /usr/bin/top
# Cmnd_Alias	REBOOT = /sbin/halt, /sbin/reboot, /sbin/poweroff

##
## Defaults specification
##
## You may wish to keep some of the following environment variables
## when running commands via sudo.
##
## Locale settings
# Defaults env_keep += "LANG LANGUAGE LINGUAS LC_* _XKB_CHARSET"
##
## Run X applications through sudo; HOME is used to find the
## .Xauthority file.  Note that other programs use HOME to find   
## configuration files and this may lead to privilege escalation!
# Defaults env_keep += "HOME"
##
## X11 resource path settings
# Defaults env_keep += "XAPPLRESDIR XFILESEARCHPATH XUSERFILESEARCHPATH"
##
## Desktop path settings
# Defaults env_keep += "QTDIR KDEDIR"
##
## Allow sudo-run commands to inherit the callers' ConsoleKit session
# Defaults env_keep += "XDG_SESSION_COOKIE"
##
## Uncomment to enable special input methods.  Care should be taken as
## this may allow users to subvert the command being run via sudo.
# Defaults env_keep += "XMODIFIERS GTK_IM_MODULE QT_IM_MODULE QT_IM_SWITCHER"
##
## Uncomment to use a hard-coded PATH instead of the user's to find commands
# Defaults secure_path="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
##
## Uncomment to send mail if the user does not enter the correct password.
# Defaults mail_badpass
##
## Uncomment to enable logging of a command's output, except for
## sudoreplay and reboot.  Use sudoreplay to play back logged sessions.
# Defaults log_output
# Defaults!/usr/bin/sudoreplay !log_output
# Defaults!/usr/local/bin/sudoreplay !log_output
# Defaults!REBOOT !log_output

##
## Runas alias specification
##

##
## User privilege specification
##
root ALL=(ALL) ALL
alex ALL=(ALL) ALL

## Uncomment to allow members of group wheel to execute any command
%wheel ALL=(ALL) ALL

#
## Same thing without a password
# %wheel ALL=(ALL) NOPASSWD: ALL
%wheel LO=MOUNT, NOPASSWD: ALL
%wheel LO=SHUTDOWN, NOPASSWD: ALL

## Uncomment to allow members of group sudo to execute any command
# %sudo	ALL=(ALL) ALL

## Uncomment to allow any user to run sudo if they know the password
## of the user they are running the command as (root by default).
# Defaults targetpw  # Ask for the password of the target user
# ALL ALL=(ALL) ALL  # WARNING: only use this together with 'Defaults targetpw'

## Read drop-in files from /etc/sudoers.d
## (the '#' here does not indicate a comment)
#
ma ancora non funziona. Nessuna idea? Grazie

Re: Permessi utente con Sudo

Inviato: mer 23 ago 2017, 19:50
da erio
via linea di comando penso che dovresti risolvere con sudo -i ho fatto un fdisk -l montato un disco con mount e spento il computer,ma sembra che su sia il comando ufficiale di slackware,vedi se ti risolve il problema.

Re: Permessi utente con Sudo

Inviato: gio 24 ago 2017, 11:56
da conraid
Guarda, anche io lo uso solo per mount e halt in pratica, ho questo

Codice: Seleziona tutto

root@blankstar:/etc/sudoers.d# cat local-sudoers 
Cmnd_Alias      SHUTDOWN = /sbin/shutdown, /sbin/halt
Cmnd_Alias      MOUNT = /sbin/mount, /sbin/umount

# User privilege specification
root    ALL=(ALL) ALL

# Uncomment to allow people in group wheel to run all commands
%wheel  ALL=(ALL)       ALL

# Same thing without a password
#%wheel ALL=(ALL)       NOPASSWD: ALL

# Vari comandi possibili senza bisogno di password
%wheel  ALL=(ALL) NOPASSWD: MOUNT
%users  ALL=(ALL) NOPASSWD: SHUTDOWN
Come vedi uso il gruppo wheel poi, aggiungendoci il mio utente, ma dipende in che contesto usi il pc questo.

Re: Permessi utente con Sudo

Inviato: gio 24 ago 2017, 12:16
da conraid
Dimenticavo.
Poi in .bashrc ho questo

Codice: Seleziona tutto

alias halt="sudo /sbin/halt"
alias mount="sudo /sbin/mount -o nosuid,nodev"

Re: Permessi utente con Sudo

Inviato: gio 24 ago 2017, 14:21
da hal9000
Grazie a tutti. Nelle vecchie versioni di Slackware non ricordavo bisognasse usare anche il comando sudo. Ora ho risolto. Saluti

Re: Permessi utente con Sudo

Inviato: gio 24 ago 2017, 19:03
da targzeta
hal9000 ha scritto:Grazie a tutti. Nelle vecchie versioni di Slackware non ricordavo bisognasse usare anche il comando sudo. Ora ho risolto. Saluti
#-o

Emanuele