Can't login in Debian

RVR777 · 04-02-2006, 07:34 PM

Hi,

I have got various problems, because I can't login in the system with any user, except root. MySQL don't start, apache give permission errors, samba don't work, ftp don't accept the passwords and other users can't login...

After some time, I think that all this problem is because the users are not working... I can login in the system only as root. Other users don't work.

I am usign Debian 3.1, but I have no idea in how to solve this problem...

Thanks, if anyone could help me

PS: sorry, my english is not too good...

gilead · 04-02-2006, 07:56 PM

Do you have users listed in the /etc/passwd and /etc/shadow files and groups in /etc/group? You can tell by logging in as root and using a text editor to view the files or just use cat to view them in a terminal window.

Also, what does ls -l /etc/passwd /etc/shadow /etc/group return?

RVR777 · 04-02-2006, 07:59 PM

Quote:

tiger:/etc# ls -l /etc/passwd /etc/shadow /etc/group
-rw-r--r-- 1 root root 577 2006-04-01 19:59 /etc/group
-rw-r--r-- 1 root root 1052 2006-04-02 20:03 /etc/passwd
-rw-r----- 1 root shadow 797 2006-04-02 19:54 /etc/shadow

The permissions looks correct...

And yes, i have the user in /etc/passwd and /etc/shadow, and the groups in /etc/group.

KimVette · 04-02-2006, 08:23 PM

I haven't used Debian itself but use Ubuntu, and its security configuration by default is similar to that of OS X. That is, the first configured user is an Admin-like user and that user can su to root, but root cannot log in by default. If Debian itself works the same way simply log in to your normal user account, su to root, and then do:

passwd root

and set a password. You should then be able to log in as root.

RVR777 · 04-02-2006, 08:26 PM

You read my post?

gilead · 04-02-2006, 08:40 PM

I'm also not a Debian user, but can you try the following and we'll see if the errors give any useful information. What error message do you get when you:

1. Login to the system as a user?
2. Use ftp as a user?
3. Login to the system as root and su to a user (e.g. su - rvr77)?

RVR777 · 04-02-2006, 08:46 PM

1. Nothing, like if I have put the worng password...
2. Login incorrect
3. No Shell

But the user have the /bin/bash seted in /etc/passwd

RVR777 · 04-02-2006, 09:03 PM

I find something interesting in syslog...

Quote:

Apr 2 21:44:40 localhost proftpd[2253]: localhost.localdomain (192.168.2.10[192.168.2.10]) - Unable to open password file /etc/passwd for reading: Permission denied

RVR777 · 04-02-2006, 09:10 PM

This I find in auth.log

Quote:

Apr 2 23:09:57 localhost sshd[2313]: Accepted keyboard-interactive/pam for renan from 192.168.2.10 port 3799 ssh2
Apr 2 23:09:57 localhost sshd[2317]: (pam_unix) session opened for user renan by (uid=0)
Apr 2 23:09:58 localhost sshd[2317]: fatal: login_get_lastlog: Cannot find account for uid 1000

elfoozo · 04-02-2006, 11:30 PM

Are you doing your troubleshooting from the console keyboard if possible to rule out network issues?

Have you checked your permissions on /etc for rwxr-x-r-x root root to verify all users can get to /etc/passwd?

Have you added/removed any accounts by just deleting lines in /etc/group, /etc/passwd or /etc/shadow without using adduser / deluser commands?

RVR777 · 04-03-2006, 12:03 AM

Hi,

Like I posted before, the permissions to this files are OK.

I solved the problem, altering the permission of /

chmod 655 /

I think it has been set to 644, but I didn't chmod the /

Someone knows anything that can do this?

Thanks

KimVette · 04-03-2006, 02:41 PM

Quote:

Originally Posted by RVR777

You read my post?

Oops, sorry, got it backwards last night. You have my sincerest apology.

RVR777 · 04-03-2006, 04:41 PM

No problem

Service are running normal now