passwd refers to the Unix command for changing a user's password and also the file in which users' login data is stored.

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How to allow passwd in chroot?

I have a multi-user server, which puts a subset of the users in a chroot. I want to allow all users to call passwd in order to change their respective password. Everything else I can think of is ...
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1answer
1k views

pam_auth_radius - RADIUS users vs unix users

I have recently set up a server with FreeRADIUS to authenticate and keep track of admin logins on some of my devices. I'm looking at getting my Linux and FreeBSD machines authenticating against ...
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6answers
3k views

Compare two user lists in bash

I have two different user lists. I need to compare the users and make sure they exist in both files. One is the passwd file, and another is a flat file for that has the usernames and other ...
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1answer
276 views

pam_filter usage prevent passwd from working

I have PAM+LDAP SSL running on Debian Lenny, it works well. I always want to restrict who's able to connect, in the past I used pam_groupdn for that but I recently got a situation where I has to ...
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4answers
995 views

Temporary changes to /etc/passwd or /etc/group - how-to

I want to temporarily modify /etc/passwd and/or /etc/group to "remove" a user/group without deleting the line. Is there a way to do that? ...
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2answers
1k views

Restore passwd for root on a server

      I have a DVR server with linux embeded. It has some telnet functions but i don't have the password for it (the chinese manufacturer refuses to give me the ...
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1answer
4k views

RtKit on my ubuntu?

Hi I just updated my ubuntu karmic Koala to Lucid Lynx and found sth strange on my file /etc/passwd. rtkit:x:120:130:RealtimeKit,,,:/proc:/bin/false Can someone tell me what it is?
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1answer
280 views

How to Protect Apache server from this attack

Is there a .htaccess solution against this attack 188.165.198.65 - - [17/Apr/2010:15:46:49 -0500] "GET ...
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1answer
44 views

I would like to allow login to a box with no password for a particular user how do I do that?

I would like a userid to allow logging into a box without a password. I am not sure how to accomplish this as changing the password to nothing is not allowed. Thanks
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2answers
122 views

Why's SMC failing on startup?

Trying to remove a user from one of our servers, but I seem to be thwarted at every turn... SMC refuses to load the user list (failing with a NoClassDefFoundError in the listAll method of ...
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1answer
469 views

Why is the displayed name in bash different from the one in /etc/passwd?

I remotely SSH login as root (using PUTTY), The bash shell prompt becomes: [root@yukiko /]# When I entered: getent passwd The first line I see is this one: root:x:0:0:root:/root:/bin/bash ...
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4answers
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Restoring /etc/passwd from file

I know they say "given root access, everyone will screw up their machine eventually", and I'm discovering how true that is. In an incident of extreme fatfingering, I've managed to wipe out my ...
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1answer
540 views

Passwd via PAM only work for LDAP

Now I'v got a working setup using PAM+LDAP over SSL but I can only passwd users in the ldap tree, any idea about how to be able to passwd every users ? Here are some conf files : ...
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1answer
897 views

sudo: uid 1000 does not exist in the passwd file!

How can i restore my /etc/passwd file? I have access to it, but it's currently empty and I added this to the file, but I can't even SSH to the machine, I'm getting a "connection refused". ...
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2answers
957 views

Telnet without passwords

Back in the days of Redhat 9 I set up networks using dumb terminals that used telnet to log in to the server. And simply by deleting the 'X' in /etc/passwd for the user, the user could log in with a ...
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1answer
570 views

How do I persuade Dovecot and postfix to use multiple passwd files for user accounts and passwords?

I'm setting up Dovecot and postfix for the first time, and I'm a little stuck. I'm sharing a virtual server with a few other people and I want a separate user account file (passwd file) for each ...
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2answers
121 views

Diskless login with Linux/OpenSolaris

Is it possible to enable a Linux or OpenSolaris based server to process standard unix login requests without spinning up the hard drive holding the root partition? I have a Nexenta-based (1) server ...
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1answer
348 views

Changing pam.d/system_auth?

I'm trying to change pam.d/system_auth to help with password complexity as required by an audit. I'm not familiar with PAM, but the system_auth file says This file is auto generated User ...
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4answers
2k views

How to change passwd constraints

I was today trying to change my password on our lab servers (SUSE) with passwd and got the error message that my password was "based on a dictionary word", which it really wasn't. I'd like to change ...