restricting root login Post: 30203

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1. Answers to Frequently Asked Questions

Lost root password / Can't login as root

We have quite a few threads about this subject. I have collected some of them and arranged them by the OS which is primarily discussed in the thread. That is because the exact procedure depends on the OS involved. What's more, since you often need to interact with the boot process, the...

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root login

How do I make it so user "root" can not log directly into an AIX server? I want a user to be able to SU to it but not log into it to keep a log

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I'm the admin in a shop in which my developers have and use the root account, all UNIX newbies. I've been unable to convince management myself that this is an unacceptable practice. I've looked in a couple books I have and can't find any chapters, discussions, etc that make the argument that...

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Can't login root account due to can't find root shell

Hi, yesterday, I changed root's shell in /etc/passwd, cause a mistake then I can not log in root account (can't find correct shell). I attempted to log in single-mode, however, it prompted for single-mode's password then I type root's password but still can not log in. I'm using AIX 5L version 5.2...

5. HP-UX

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With my SSH, my HP-UX cannot login to root. It will come out a message su: unknown id: root. But I can login by user oracle. I also cannot login to console either by using root or oracle anymore. What shall I do.

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I can use sudo su to root from my user id through ssh. Also can change root password. However, I cannnot login by root from ssh. Does any body know why?

7. Solaris

psrinfo -p needs root login ?

Hi, I tried running psrinfo command on couple of machines but found that if i login as root then it works. But when i login other than root account, I get this error, $ /usr/sbin/psrinfo -pv | fgrep UltraSPARC /usr/sbin/psrinfo: illegal option -- p usage: psrinfo ...

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[Solved] root cannot login

Dear all, cannot login to a HP unix server using root as well as other logins. Even root also cannot enter. It seems that they have changed some permissions in / Any way of recovering the system or getting logged in . Thanks in advance Rj

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Hi, we have instaled Solaris 10 on a SUN V490, installation went okay but now when I type �root� and press return it comes back with the �Login incorrect� without ever asking for a password...

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Su root or login root

Hi, I find there is some customized linux with application. When I use login account root and type the password. It is not allow to login. But if I login with specified user and password. Then I use command "su - " and type root passwd. It allow you to switch to "root" account . Or if i...

LEARN ABOUT PLAN9

chsh

CHSH(1)                                                            User Commands                                                           CHSH(1)

NAME

       chsh - change login shell

SYNOPSIS

       chsh [options] [LOGIN]

DESCRIPTION

       The chsh command changes the user login shell. This determines the name of the user's initial login command. A normal user may only change
       the login shell for her own account; the superuser may change the login shell for any account.

OPTIONS

       The options which apply to the chsh command are:

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

       -R, --root CHROOT_DIR
           Apply changes in the CHROOT_DIR directory and use the configuration files from the CHROOT_DIR directory.

       -s, --shell SHELL
           The name of the user's new login shell. Setting this field to blank causes the system to select the default login shell.

       If the -s option is not selected, chsh operates in an interactive fashion, prompting the user with the current login shell. Enter the new
       value to change the shell, or leave the line blank to use the current one. The current shell is displayed between a pair of [ ] marks.

NOTE

       The only restriction placed on the login shell is that the command name must be listed in /etc/shells, unless the invoker is the superuser,
       and then any value may be added. An account with a restricted login shell may not change her login shell. For this reason, placing /bin/rsh
       in /etc/shells is discouraged since accidentally changing to a restricted shell would prevent the user from ever changing her login shell
       back to its original value.

FILES

       /etc/passwd
           User account information.

       /etc/shells
           List of valid login shells.

       /etc/login.defs
           Shadow password suite configuration.

SEE ALSO

       chfn(1), login.defs(5), passwd(5).

shadow-utils 4.5                                                    01/25/2018                                                             CHSH(1)

10 More Discussions You Might Find Interesting

1. Answers to Frequently Asked Questions

Lost root password / Can't login as root

Discussion started by: Perderabo

2. AIX

root login

Discussion started by: breigner

3. UNIX for Advanced & Expert Users

restricting root access

Discussion started by: keith.m

4. AIX

Can't login root account due to can't find root shell

Discussion started by: neikel