Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Superuser
Top Forums UNIX for Dummies Questions & Answers Superuser Post 302911910 by bakunin on Monday 4th of August 2014 12:12:13 PM
Old 08-04-2014
Quote:
Originally Posted by pinklemon
What was ment by this remark?
On some systems the direct login of the root user is prohibited as a security measure. To become root one would have to log on as normal user and only then use

Code:
su - root

or something similar ("sudo", ...) to become root. It might be that your system is configured this way. You can usually see this in the "/etc/passwd" file where user accounts not allowed to log in directly have a certain field marked. For instance (from an AIX system, notice the "!"/"*" after the users name):

Code:
root:!:0:0::/:/usr/bin/ksh
daemon:!:1:1::/etc:
bakunin:*:999:1:bakunins normal user:/home/bakunin:/usr/bin/ksh

The users "root" and "daemon" are not allowed to log in ("!" in the second field), whereas "bakunin" is allowed to log in ("*" in the second field).

I hope this helps.

bakunin
 

9 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

superuser password change

how can i change the superuser password? the admin left the company, and we want to change the password. to gain su access, i use: # su - password:***** (old password) then, using passwd command it changes my own login password, not the root?? (this is not trying to block anybody's... (4 Replies)
Discussion started by: apalex
4 Replies

2. UNIX for Advanced & Expert Users

No user able to login except root(superuser)

Hi All, Oracle 8.0 database is running on SCO-UNIXWARE 7.0 Operating system. Some how ORACLLE DATABASE has crashed. After rebooting the PC only the SUPER USER could login. No other user is able to login. we need ORACLE user to start the DATABASE again. It is asking for the password, after... (2 Replies)
Discussion started by: konda
2 Replies

3. UNIX for Dummies Questions & Answers

runing a script as superuser

My first post: in /etc/rc2.d i have a startup script: Script1. if you run #>scirpt1 stop/start from any user other than root you will get u must be supper user to run this script. eventhough the rights are 777. Question: how can i get my user_a be able to run this script to stop and start it... (2 Replies)
Discussion started by: bcheaib
2 Replies

4. UNIX for Dummies Questions & Answers

SuperUser

Can I create a superuser account in scoadmin? If not how do I do it via command line (0 Replies)
Discussion started by: maconte
0 Replies

5. Shell Programming and Scripting

to run sql as superuser

hi All, In my script I want to run some drop and select statements in the same host as a different user.I am inputting password for the superuser from the user who will be executing the script. ie , I would be greatfull to you experts if you could suggest me how to proceed. (4 Replies)
Discussion started by: Sreejith_VK
4 Replies

6. Solaris

superuser without prompting for pswd.

I have a korn shell script (main.sh) owned by unix account "A". I want to execute certain lines in the script using another user "B" (with user "B" login profile). I need to do this way for multiple lines to be executed using different unix accounts in main.sh. I was trying to use "su -... (3 Replies)
Discussion started by: Ashok_107
3 Replies

7. Solaris

Solaris superuser login

Hi! Can someone please tell me how to log-in to Solaris as a superuser or as a root? I have tried using "root" as a username, and my superuser password i had set in the terminal for the log-in password but it says "Roles can only be assumed by authorized users". "Permission denied." I'm... (1 Reply)
Discussion started by: CarlosP
1 Replies

8. UNIX for Dummies Questions & Answers

Adding plesk superuser from SSH

I'm trying to add a superuser (admin) to plesk from SSH (I have root access). Can this be done? I have search over the web but did not find any solution to my problem. My version is Plesk 9.3 (0 Replies)
Discussion started by: galford
0 Replies

9. Solaris

How do you make a superuser?

I have just installed Solaris 11. When I turn the computer on I don't want to see a login in screen. I want to automatically be logged in as "SUPERUSER". My research tells me someone is going to tell me that's not wise or safe. I'm not interested in security advice. If someone I know is... (10 Replies)
Discussion started by: kkeevv
10 Replies

LEARN ABOUT SUSE

ftpusers

FTPUSERS(5)						     Linux Programmer's Manual						       FTPUSERS(5)

NAME

       ftpusers - list of users that may not log in via the FTP daemon

DESCRIPTION

       The  text  file	ftpusers  contains a list of users that may not log in using the File Transfer Protocol (FTP) server daemon.  This file is
       used not merely for system administration purposes but for improving security within a TCP/IP networked	environment.   It  will  typically
       contain	a  list  of  the  users that either have no business using ftp or have too many privileges to be allowed to log in through the FTP
       server daemon.  Such users usually include root, daemon, bin, uucp, and news.  If your FTP server daemon doesn't use ftpusers  then  it	is
       suggested  that	you  read  its	documentation  to find out how to block access for certain users.  Washington University FTP server Daemon
       (wuftpd) and Professional FTP Daemon (proftpd) are known to make use of ftpusers.

   Format
       The format of ftpusers is very simple.  There is one account name (or username) per line.  Lines starting with a # are ignored.

FILES

       /etc/ftpusers

SEE ALSO

       passwd(5), proftpd(8), wuftpd(8)

COLOPHON

       This page is part of release 3.25 of the Linux man-pages project.  A description of the project, and information about reporting bugs,  can
       be found at http://www.kernel.org/doc/man-pages/.

Linux								    2000-08-27							       FTPUSERS(5)
All times are GMT -4. The time now is 08:44 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy