Ubuntu :: Reset A Kerberos Password?
Aug 5, 2011
We have an employee that left our place of business on bad terms and his computer has been locked out since. The comp runs Ubuntu 10.10.
We have followed the regular password reset methods online but the Kerberos password seems to be getting in the way. We have no idea was this password is and it seems impossible to work around. Does anybody know a way?
Were were about to gain access as the root user but cannot access other user accounts as the root user.
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Jul 29, 2010
I have installed servers(10.04 LTS Server) with Kerberos + LDAP, now I can ssh to all those servers and login with kerberos principle. But when I want to change password, I got such error:
Code:
Current Kerberos password:
Enter new Kerberos password:
Retype new Kerberos password:
Password change rejected: Password not changed.
Kerberos database constraints violated while trying to change password.
passwd: Authentication token manipulation error
passwd: password unchanged
I have search this issue but cannot any useful information. Would someone give me a direction?
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May 13, 2011
I'm trying to login to a server using gssapi-with-mic authentication against one of my school's machines that supports this mode of authentication. I have these kerberos packages installed:
batrick@menzoberranzan:~$ dpkg -l | grep krb
ii krb5-config 2.2 Configuration files for Kerberos Version 5
[code]....
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Jul 23, 2009
I am an absolute Linux Beginner who is being required to do a bit of admin work because the boss just fired the old linux admin. Unfortunately, one of our employees cannot remember her password to her email account and as such I need to reset it on our linux server.What I want to check is that this email account is actually a linux user account and I simply will reset the password for it using the passwd command from the root login. Is that correct?
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Aug 3, 2010
I just took a job and the admin password for the AFS is missing. How do I find/reset this password? I have the root password for the machine it is installed on.
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Jun 4, 2011
brand new 2 Ubantu & set up standard Ubantu compartment accessed via 1 user name only and password. 1st few times all good but now suddenly, unexpectedly password declared invalid. Had written down password so it is correct & not entry error. Not know how to reset password or bypass 'username/password log on screen' Am on an Acer 5542G with windows 7 home premium.
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Jun 8, 2011
I have set up my KDC and telnet in the same server.
I am trying to telnet from a local PC . This is the output I am getting ..
[sudip@kdcclient root]$ telnet -a -F -x kdc
Trying 192.168.1.3...
Connected to kdc.example.local (192.168.1.3).
Escape character is '^]'.
[Code]....
So why it is asking for password ? What I am missing here ?
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Jan 15, 2010
I have a Kerberos/LDAP/OpenAFS server running on Debian lenny, set up according to Davor Ocelic's excellent guide here (url). SSHd has ben configured to use GSSAPI auth and the clients have been configured to pass auth tokens through to the server.
My clients are all Ubuntu 9.10 x86 fully patched. On the clients, OpenAFS has been compiled and installed as a kernel module and git 1.6.6 has been compiled from source and installed. Otherwise, all software is stock Ubuntu repository-ware.
The setup is working fine as long as I connect to the primary server using its hostname:
peter@client01:~$ ssh nana
<connection goes through seamlessly without prompting>
peter@nana:~$
If I try to connect via a DNS alias (actually a second CNAME record), I get:
peter@client01:~$ ssh git1
peter@git1's password:
<connection completes>
peter@nana:~$
I need both passwordless auth and the DNS alias working, as it's internal policy that user connections are only ever made to service names, not real hostnames.
I have tried adding a second host principal to Kerberos for the alias (git1.darling.local) in addition to the host principal for the hostname (nana.darling.local).
If I turn off PasswordAuthentication in sshd_config, then "ssh git1" doesn't even fall through to passwords; it just denies logins. So it looks like it's not even using GSSAPI for the DNS alias.
So:
1) Is what I want even possible? I can't find anything that indicates that there's anything odd about DNS aliases such that this should happen.
2) Which config files should I post to help debug this? There's a lot and I didn't want to start blarfing them here if they aren't helpful.
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Jun 13, 2010
Anyone know how to reset a Ubuntu password? I've pulled up the "recovery mode", but when it gets to "Starting Ent Vol Mgmt Sys" the open fails, and then I get a series of timeout-resettings. I really just need to get into the recovery menu, but I can't get past this.
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Oct 3, 2010
just got a secondhand laptop that already has ubuntu loaded on it but ithas been registered to the previous owner can i reset to my username and password or do i have to reinstall it thanks mark
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May 7, 2011
I was given an old computer running Ubuntu but the guy that gave me the computer didn't know the user name or password. So I booted into full root shell and did ls /home and the computer responded with mskbxI then did passwd mskbxand it responded withpasswd: unknown user mskbx
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Jan 21, 2010
I've installed UBUNTU 9.10 on ( windows 7 ) when I was interested to discover Linux, now I began to understand this AWESOME system and I began to get ride of Microsoft " Windows " .. But I face a problem that when I installed It I created only one account with a password, but It's not the root, when I tried to login as root, I didn't success, It tells Failure authentication because of the wrong password, because I enter my account password which I entered when I installed the system, Now I want to know how to solve this ISSUE, how to get the root password or how to reset It
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Sep 18, 2010
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Mar 21, 2010
How do I reset password in unbuntu 9.04?
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Dec 14, 2009
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Feb 6, 2010
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Feb 19, 2010
I opened my note book. I have installed XP, Ubuntu. When I boot, I select ubuntu os. But I forgot my Password. How to recovery or reset my password?
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Sep 7, 2010
I have forgotten my root password for MySQL, what can I do to recover it, I've found a few guides but they don't work on the newer versions of Ubuntu.I am running on Ubuntu 10.04 server so MySQL is an upstart job so the methods I've seen with launching it without the access checks haven't worked for me
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Oct 14, 2010
I have forgotton my root password for mysql. I followed some instructions on a website and now I am not sure what i have done?Basically, when I now try and start mysql I get a notification that i have converted the init script to an upstart. I dont know what this means.
Since the script you are attempting to invoke has been converted to an Upstart job, you may also use the start( utility, e.g. start mysql mysql start/running, process 20301.
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Apr 26, 2011
Is there a way to bypass (and/or reset)the username/password when powering up?
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Jan 12, 2009
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Jul 13, 2010
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Aug 11, 2010
how to reset my password manually?
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Apr 30, 2010
I am using openSUSE 11.1 and I've lost my root password.The following didn't worked :-
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give parameters " 1"
press e
press b ...
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Apr 22, 2011
Is it possible to reset my root password without installation CD?I have been read some that it is possible by edit LILO, but i'm just not sure yet how to do that...by click TAB first on LILO?and what parameter should i append on?Now i don't with my Slackware CD for in the next few days. Typos makes me lost root and my daily login simultaneously. If i reboot, i'll never login to my laptop-because there are only root and my login
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Oct 7, 2010
I have a lost password on an Intel DG33TL motherboard which I guess is only resetable by shorting the right jumpers on the board. I have two questions regarding that:
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2- Currently I have two hard drives installed in Raid1 (mirroring each other) through the motherboard RAID (not the through any RAID card or through CentOS). RAID was made prior to installing CentOS. So, would resetting the jumper mess up the whole RAID? I don't want trouble and I can leave without the password but it's good to know if need arises.
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Jan 14, 2011
I have a friend that recently moved to Linux. She had started out with Ubutnu 9.04, which was giving her a lot of Issues along with being no longer supported, so I recommend Linux Mint 10 to her, since she wanted something closer to Windows. I instructed her on how to do a clean install. Linux Mint installed ok, but when she was about to set up wireless to get on the Internet, she realised that she had forgotten her password. She called her network (Belkin) for assistance to retrieve it. She was told that Linux is not really supported; however they gave her this address to access the router: 192.186.2.1 from her browser which did not work. So there was nothing further they could have done since she couldn't gain access to the router. She is currently only able to use Ethernet connection to get online.
What could she do to reset her password or gain access to the router? I didn't want to tell her to reset the modem in case it will leave her with no internet and no way to setup her router.
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Jul 16, 2011
I forgot my root password for mysql, and after some searching I found several solutions to fix it. But none of them seem to work.I tried this article http://ubuntu.flowconsult.at/en/mysq...root-password/ with starting mysql with the --skip-grant-tables option. The problem is that nothing happens, it just hangs.Also tried the the --init-file option, that one runs fine, at least it returned to the command line. But the sql query in the file to which it point doesnt seem to do anything. The password wasn't changed to the one I specified in the sql file.Any idea what could be going on here, and how I could fix it?
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Jan 27, 2011
I have inherited a Compaq Armada 1592DMT that has Debian GNU/Linux (tiny) on its hard drive. After bootup there is a dialog box asking for login & password. Two things I have no way of answering. So how do I recover them? I do not have the faintest idea how Debian Linux works, nor how to Bash Grubs, I'm just an old Windows button pusher.
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Feb 4, 2010
I am trying to set up a webserver with apache, mysql and php on a old pentrium 4 computer. When I tried to setup my MySQL password, I created a password with punctuation in it. MySQL didn't want the password and gave some error about BASH. I tried changing my password again but now I constantly get the error that I am unable to login. I tried all the possibilities with the password I entered before but i just can't login to MySQL anymore. I found some help sites on how to reset your password by running MySQL in the safe mode but that didn't work for me. Can anyone help me resetting my password? Next time i'll use a pass without punctuation Every help is much appreciated! BTW, I also tried uninstalling MySQL with yum (yum remove mysql) and it uninstalled, but when I installed it again the password was still there
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