Ubuntu :: Change Password New And Old Do Not Authenticate?
Jan 10, 2010
I tried to change my password through the Users and Groups dialogue, and now neither the old one nor the new one work. I tried to do it once, and it didn't do anything (the password was still my old password), then the second time I did it, when I went to save the configuration it wouldn't take my new password or my old one. Now I can't authenticate for anything.
A wicked backdoor I've noticed is that going into recovery mode offers you a root console without authentication. (Awesome, Linux, secure as all ****, seriously.) Is there any way to use this to set my user password without needing to authenticate?
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Mar 1, 2011
Today I've found out that I cannot authenticate and use my ubuntu 10.10 partition as it doesn't recognize my password! The password is correct, I also tried to change the username in "root" but nothing changes. When I write it, it shows for some istants a black screen with words in it (so quickly that it's not easy to read) and then it shows me again the form to access.
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Jan 27, 2010
i recently switched to ubuntu 9.10 from win vista, i am having a problem... in ubuntu when ever i do any changes it asks me for my password, i know that its for my own PC's securiety but now i am really annoyed with this.
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Jan 17, 2011
I may be a beginner to Ubuntu 10.10, but I'm fairly certain that this is weird: I have had no trouble logging into my Ubuntu 10.10 netbook until this morning. Now I am unable to get past the login screen. It says that there is an Authentication Failure, which is bogus. Not only should the password work, but it does in the Terminal. I am able to login to the terminal and gain root access.
I can even change my unix password, but no matter what I try I can't get to my desktop. I did run into a major issue with a frozen program. Rather than reboot, I tried to close it using the kill command. What ended up happening was that all that remained was my wallpaper, probably a bad move on my part, but I'm a rookie. I think I killed all running applications. This happened last night... so probably related.
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Jul 9, 2011
Lots of password threads, but I didn't see this.
Installing Debian 6.0.2.1 amd64 on a Dell Optiplex 740.
The default install (simple graphical) works OK. But when I install "graphical expert", the same root password seems to be OK during the install, but doesn't work when the system comes up.
A. I have used a very short pw. It worked before.
B. The root pw is the same as the user pw. It worked before.
I am installing from CD and from DVD, both downloaded and burned as iso. In both cases, I asked for "graphical desktop" and "standard utilities", no servers, no laptop, no SQL.
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Aug 16, 2010
I was having trouble with pulse audio and completely obliterated pulse audio from my machine in order to prepare for a reinstall of pulse audio. this also uninstalled a few other packages that I needed to enter gnome or kde. when I try to login via gdm(?) my password will not authenticate (when I enter via xterm or tty the password is accepted). how can install packages off a live usb drive from Terminal. how to access a wifi network under terminal to use apt-get.
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Jun 9, 2010
I have fedora linux as an operating system on my laptop but each time I try to install a new program it prompts for an authenticate root password of which I have no idea. I wanted to install windows xp on it but each time I do so it prompts"se-linux denial" on the base that the source is not trusted as i didnt authenticate it.
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Aug 13, 2010
I am wondering how websites like banks are able to determine if you have previously used a certain computer to access the website, even if your router's IP address may have changed and your system's cookies have been cleared. I have users that need to access our HTTP intranet from outside locations. Those locations will have dynamic IP addresses most of the time, so I can't just "allow from [ip]" in my Apache proxy configuration. Originally we considered a VPN, but determined that a VPN will be overkill to access just an internal website, since we do not want external users to have permission to the rest of the network, only the website.I currently have it working over HTTPS with basic authentication against an internal LDAP server, but I want a little more security for such an important website.
crappy diagram:
[user]-->(internet via https)-->[apache gateway]-->(intranet)-->[http server]
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Mar 9, 2011
I setup my evolution to get this forums news. (eg. threads and posts). However, I can't get them because it give me this: I keep entering my forum password over and over again but I can't authenticate :S And you might also need to check these: [URL]
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May 12, 2010
Well this one is driving me nuts. I've been searching through the forums for a while and it seems that a number of folks have similar issues but the solutions used don't look like they apply to me. so without further ado here are the outputs typically requested:lspci
Code:
00:00.0 Host bridge: Intel Corporation Mobile 915GM/PM/GMS/910GML Express Processor to DRAM Controller (rev 03)
[code]....
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Jan 16, 2010
Have dual boot winXP, FC6 computer. Clobbered something so FC6 does not boot. Am trying Ubuntu 9.10 CD; tried first to run from CD- but it asks for username and password, will not accept blanks nor my winxp values- keeps 'failing to authenticate'. So I did an install in new partition beyond linux fc6. It finally lets me log in, giving a small text window. How to get to desktop, and is there a way to get to my old home files in linux fc6 in native linux partition?
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Jan 8, 2010
hello i am trying to change my password, but when i type in the new password i get this:"The password is longer than 8 characters. On some systems, this can cause problems. You can truncate the password to 8 characters, or leave it as it is."my question is what kind of problem could i get and how can i change so i have to log in every time i start the computer?
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Jul 7, 2011
I have a Windows domain with a proxy. I have an account that can use the proxy and the URL that points to the proxy.pac file. this might seem a stupid question but can anyone tell me how do I enter the username and password for my test Windows account so that Debian can authenticate it?
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Mar 9, 2010
I'm really new to Linux so this will probably sound like a pretty naive question to most users, but how do you change the root password?To install Java, I have to type # su into Terminal,which then asks for the password.What's weird is that when I start typing a password, no characters show up. I don't know if this is supposed to happen or not.I've found a bunch of different sites on the Internet that explain how to change the root password, but none of them seem to work for my specific work station.
I've got Ubuntu 9.10 64 bit. In the GRUB boot menu, I can choose to boot normal or in recovery mode (I'm led to believe older versions don't have this option).I've tried typing # sudo passwrd into Terminal, but I already have a root password set up apparently, so I can't change it there.
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Jun 14, 2011
everytime i try to vnc to my box, it pops up the keyring authentication, which is obviously a huge problem when logging in remotely.how do i change my keyring password to match my login password?
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Jul 25, 2011
I have a brand new install.I was doing some housekeeping and made a more sure password.Something went wonky and I got locked out.So I booted to root and changed the password.I'm back in the box now.But, my keyring password no longer matches my user password.So every time I want to do something I am asked for my old password.How do I change my keyring password to match my login password?
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Jan 13, 2010
How can I force passwd to use a simple password?I want to change my passwd & delete passwd history (if stored).I plan on creating a Virtual Appliance that uses another password besides my testing password.
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Nov 22, 2010
I work on a product that have to start automatically an application. Running Opensuse 11.2 So in the inittab I have : 1:2345:once:/root/Velox/VeloxBoot.sh 2:2345:respawn:/sbin/mingetty tty2
In the VeloxBoot.sh, if I don't press any key, my application starts after a timeout. If the user presses a key I want to have a login prompt. Unfortunately, if I start /bin/login, I have a prompt with login, but once I enter my login, it does not ask for a password and it says wrong password
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Mar 17, 2011
When I login to my laptop, there's a dialog that asks me for a password. When I fill that in, it allows the network manager to access my wifi password and connect to the wifi.How can I change the password that network manager is asking for? It's kinda awkward to ask this question - I am not asking how to change my wifi password, but the password that comes up - Seahorse? I'm not sure what's used on Lubuntu.
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Apr 14, 2010
Is there a way to change password to value same as the previous password? I know this is a security flaw, but would like to know however. when I try this:
[Code].....
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Jul 2, 2010
i forgot root password and how to change the password
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Jan 6, 2009
At the RHEL prompt, I entered the standard user's username/password combo. Linux displays a message box stating:"Your account has expired; please contact your system administrator."Next, I entered "root" in the username field and entered the root password (which expired also--keep in mind that passwords are set to expire after x days). Linux displays a message box stating:"You are required to change your password immediately (password aged)."When prompted to "Enter current UNIX password", I entered the new password (was that the right thing to do?); Linux displays a message box stating:"The change of the authentication token failed. Please try again later or contact the system administrator."I rebooted the system and got into command line mode; somehow I logged in as "root" (don't know exactly how, but needed to change the password there). At the "#" prompt, I type "passwd root"; Linux displays the message "Changing password for user root", followed by the message "passwd: Authentication information cannot be recovered.
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Dec 8, 2010
For some reason passwd does not accept my current password as the old password when i try to change my password with the command passwd. Im not sure whats wrong with whatever linux uses to handle passwords but I cant even change passwords with the root user account. Is there any way to fix both of these problems.
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Feb 16, 2011
On my linux machine, I've enforced a password expiry policy every 45 days. So, today when I tried to ssh to the host, I get the typical "WARNING: Your password has expired". Fine, no big deal. But when I enter my new password and confirm, instead of giving me a login prompt, it tells me passwd all auth tokens updated successfully, then next line, "Connection to <host> closed". I can re-ssh back into that host and all is well from here, but it's a nuisance having to go through the extra step. Is this something in the /etc/ssh/sshd_config somewhere or perhaps a PAM config issue?
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Jan 21, 2010
Such a simple question but no luck finding this answer in the forums or the internets.
How do I change my root ftp password via command line?
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Apr 1, 2010
I think this is a bug but I wanted some feedback from the community before going to launchpad with this.
I had a new user call me up with a question on how he might change his password on his Ubuntu 9.10 system. I walked him through the steps of going to System->Administration->Users and Groups->Click on his user account->Properties->Change Password. Everything went well, but when he logged out and went to use his new password it clearly didn't reset the password. He had to use his old password to get into the system.
I verified it on my system as well - changing my password through the GUI does not actually change my password. The only way I was able to change it was through the passwd command, which is what I walked the user through.
So the question is: Is the GUI method (gnome/ubuntu) for changing one's password broken? Or did we miss something?
As a follow-up to this - it appears that changing a user's password through the command line with passwd does not change the password for gnome-keyring, which then asks the user for his/her password before NM can connect to wireless networks. The only password that this dialogue box will take is the user's old password - which could be really confusing to an end user.
Is there a better, more comprehensive way of changing one's password in Ubuntu that would update the keyring settings at the same time?
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Jun 22, 2010
I cant login into my account(my admin account) because for some reason the password is changed.I used ubuntu live cd and I chroot my ubuntu on the hd.I use "likewise" to login to ldap db and I remember I read somewhere that it can cause problems like this.I dont want to uninstall it and reconfigure it again.
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Jan 4, 2010
I'm new to ubuntu. Now iam using Karmic Koala. I want to change my password. So i used,
system->Administration->users and groups to change my password . As i entered my new password and clicked on 'Change Password', It is saying, 'password changed'. But when I click the close button in the main users and groups window, it is asking for my password, and I am forced to enter my old password only.
After the window is closed, i logout to check whether my password is changed. But it is not. I have to enter my old password to login.
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Jan 5, 2010
I've tried both the GUI and the terminal to change my user's password and both are failing. I'm running 9.10 with current updates.
In the GUI, I type in the current password and it recognises it. I then type in the new password twice. Upon clicking change password it hangs.
In the terminal I use "passwd". I type in current password. I then type in the new password twice, but an error of:
Code:
I've even changed the new password to another something different (with NO special characters), and it still fails.
Are there certain characters I should NOT have in a password, such as /#/ or /;/?
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Apr 8, 2010
On the live cd I put a dumb temporary password into keyring (not user password) not knowing it would keep the same password on finished install. How do I change this in Xubuntu 10.04?
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