sudo user without input password

[ust3]

I want to let userA can su to userB , but it as to input userB password , can advise how to set to no need to input password ? thx

[Steven E. Protter]

Shalom,

su is not a part of the sudo package. Two things. I've never checked, but sudo may use su commands, but you are making an association that is not there.

To let userA use commands normally available to userB without a password, you can use sudo.

You need to set up a command group and assign privileges to userA. sudo is normally used to provide non-privileged users with certain commands, not full access.

SEP

[Court Campbell · Accepted solution]

you need to add a line like this to the sudoers file:

userA ALL = NOPASSWD: /usr/bin/su - userB

then the user can do this

# sudo su - userB

and should not have to type a password.

[Yogeeraj_1]

hi,

ssh would be another option.


ssh userB@localhost

(assuming it has been properly configured and authorized_keys properly updated)



hope this helps too!
kind regards
yogeeraj

[ust3]

I got it , thx all much.

[Aussan]

hi ust3

if you want userA to su to userB only and no one else then do this

SU = /usr/bin/su - userB, !/usr/bin/su -, !/usr/bin/su "", !/usr/bin/su
*root*, !/usr/bin/su - root

userA ALL = NOPASSWD: SU


in the definition of SU we are telling it he can su as userB but not as root

Regards

Aussan