I had installed xp & ubuntu on my laptop hp compaq cq-40. Then i got this problem on su password authentication failure. I had alreadyformat and re installed ubuntu. But the su authentication still failure,
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I am running Ubuntu 11.04 which I like very much (except for Unity - so I am using Ubuntu Classic).
Whenever I try to use "su - " I get Password Authentication Failure. I have checked Caps Lock (obviously) and have also tried resetting the password using "passwd" - but with no success.
If I use "sudo ...." with a command the password is accepted.
I have the same software installed on two computers but the problem only occurs on one - the other is OK!
I was hoping that someone could point me in the right direction. I just did an install and the os is up and running. During install, I set a root password and also set up a regular user account. The only option at login is the regular user acct. Needless to say, the os asks me to provide the root pw for just about everything I need to do.get an authentication failure. (I assume that this is the same as permission). I can find plenty of info on how to restrict access but nothing relevant to my problem. Just to rule out an install problem, I installed the os a 2nd time. I am very sure I have my passwords correct. One other thing to note is that on the 1st install, I used a different pw for root and regular user. On the 2nd, just to keep is as simple as possibl I used the same pw for root and reg user account. I am new to debian, but the distro that I have been using (slackware)
View 5 Replies View Relatedhave been experiencing an error (the past few weeks) whenever I try to install a software package using the default installer. Each time I enter the root password it is not accepted and I am unable to get past it and the installation fails.This is the error message that is issued:[PK_TMP_DIR|dir:///var/tmp/TmpDir.mf2zCf] Repository already exists.I am able to enter the root password in a terminal session without any problem along with using the Install Software option in the main menu.
View 6 Replies View RelatedI have a strange behaviour on a Slackware 13.1 box:
Code:
user@host$ su
su: Authentication failure
[code]...
I have installed Ubuntu 8.04 inside windows and every time I go to the terminal and type "su" it asks me for a password. Well the password I set before the install doesn't work, it gives me an authentication failure. I thought that since it was inside windows it didn't set me as a root user. I go to user groups and I see my name there and then "root" above it, but its grayed out. Is there a default root password I can enter?
View 5 Replies View RelatedI just installed Fedora 12 on HP Pavilion (dual boot with Windows vista). I made it all the way through the installation and created my user account. A few seconds later I got the login screen asking for my password. I enter the password and get "Authentication Failure."
The name that shows up on the login screen is my full name, not the user name that I created. Is that wrong?
My system software is installed on an encrypted LVM on hda1 and hda2. My home directory takes up the whole of hdb1 which is also encrypted. I can boot up into the kde desktop okay, but when I open up konsole and type 'su' and my root password I get the message "su: Authentication failure". I am absolutely certain that I am using the right password.
Even more strangely, if I fire up synaptic and give it that same password I am able to install software. Does anyone have any suggestions as to what's gone wrong and how I can fix it?
I can also type Ctrl-Alt-F2 and log in as root to do administrative tasks without any problems so I cannot understand why konsole has locked me out.
we are using linux email server axigen past few years. we keep port open ssh and pop,smtp webmail etc. ssh use for remote trouble shooting. so through firewall it is globally accessable. we notice many attacks coming to our machine, also some people try to enter in our system but failure. as example see below a log come in messages file
Mar 17 09:19:50 sa1 sshd(pam_unix)[21231]: authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=210.51.13.120 user=root how we can secure more. as per my understanding only good long strong password can stop to prevent from attacks.
I am about to sell a computer with ubuntu on it, and I created a user with no password and deleted my previous user. Now there is only one user account, and it has a blank password. However, any time I need root access (sudo, configuring user accounts, etc.) the system won't accept a blank password. It just says "authentication failure." Deleting my other account was silly. I am stuck with just one user account with a blank password!
View 3 Replies View RelatedI am trying to become su in the terminal window. It asks for my password, I give my usual password and I get "authentication failure". I thought that my log in password works for the su as well?
View 3 Replies View RelatedI want to configure SSH key-based authentication and SSH password Authentication in same machine for different user .
View 1 Replies View RelatedI have a rather difficult problem. Every time I need root privileges and I am asked to authenticate (i.e. Update Manager, mounting a partition, etc), the password window comes up, shakes and immediately closes, leaving me with no chance to enter a password. What to do?edit: this is NOT the login window, just the little dialog that pops up when you need elevated privileges.
View 5 Replies View Relatedsu doesn't work in terminal. i found one (click), and tried it, but it didn't fix it. Everything else works. Sudo, Software manager, synaptic package manager... I know i'm putting the right password in. Heres a picture, ignore everything except the last 4 lines.
Everything before it was me trying a proposed fix in the thread mentioned above.
Quote:
sudo dpkg --configure -a
sudo apt-get clean
sudo apt-get update
sudo apt-get upgrade
I've tried changing my password as well. I got the same error. Also, "sudo su" works fine. I'm not sure if theres a difference as i'm new to ubuntu....linux in general. Can you explain the difference between sudo and su, and sudo su? Also, can you explain what any commands you need me to do are? that way, i'm not just leaching.i'm trying to do is install Java!
Sysinfo:
Quote:
Release: Ubuntu 11.04 (natty)
GNOME: 2.32.1
Kernal: 2.6.38-8-generic
Im using FEDORA 12 (constantine )....Everything was working fine.....until yesterday when i tried login to my GUI(gdm) it says authentication failure. so i tried logging in from CLI and it didnt worked either...(it didnt say "password incorrect",rather it it simply reset the screen to "login name:",thats weird...right?)
Then i tried to login as root from from CLI (by default Fedora does not support root login to GUI?) and i was able to login.....
Then it said "System powering down in one minute"............. i didnt understand why that happened.....! but it didnt power down in one minute...
I tried changing my user passwd...still no change.....
I managed to get Ubuntu installed, however, it just won't let me log in. I perform the net-install, and tell it my user name and password. However, once the install has completed, and the system rebooted, I cannot log in to Ubuntu (on X-screen or TTY). I've tried it twice - once with Karmic Koala Ubuntu installed with GNOME - the other with just CLI and they both fail.
View 1 Replies View RelatedI upgraded from 8.04LTS to 10.04LTS desktop. I can do sudo as root at the terminal, but I can't pass authentication trying to add a user (System->Administration->Users and Groups).
Here is what I got: An error occurred while checking for authorizations: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken. You may report this as a bug.
In Empathy, Facebook worked just fine but upon a recent restart of Empathy, I started to get an authentication error and I can no longer get Facebook chat to work.My password has not changed.
View 9 Replies View RelatedHere is what happens. I type in "su", without the quotes, to switch to root. I enter my password.
Code: jon-Tuxbox:~$ su
Password:
su: Authentication failure
jon-Tuxbox:~$ It fails, and I get kicked back to the command line. I recently fixed the permissions on the shadows file and the su file in the bin directory, and that is what caused this. Before it would give another error. I tried resetting the password for root, but it didn't fix it.
cannot update fully because of apt authentication failure. what is this? what can I do to resolve it?
View 8 Replies View RelatedI cant access my box after upgrading from fedora 13 to 15 i wasn't near the computer during the process and i don't know if it asked for user and password ,but its upgrade and it need to have my old setting so why i'm not able to log in at all , even not as root.
View 6 Replies View Relatedi have been running Ubuntu for about 3 days now, finally getting all my files moved back to the drive and what have you.I came from running windows, and an Android phone with full su access, and done up all custom-like..I am loving the speed, etc. great experience so far. BUT: the headphone port on my laptop is broken, and so I run [ran] and external soundcard, a Creative X-fi 5.1 USB SC. I have found linux drivers for this unit, and am trying to install. I have googled the crap out of how to do this, yet am getting stuck.
Here is where I'm getting stuck. I have extracted the package, entered into the sub folder, and am trying to run the Make install:
...laptop:/tmp/xfi-0.0.0.0$ cd ./xfi
...laptop:/tmp/xfi-0.0.0.0/xfi$ su -c "make install"
Password:
su: Authentication failure
...laptop:/tmp/xfi-0.0.0.0/xfi$
what in heck do i type at password... have I NOT done something, am I doing something wrong.... it does not accept my normal password, so I am lost.
Yesterday I installed a program called localepurge to remove the locales I don't need, I've chosen only en and ar to maintain and removed the rest, after restarting, can't access the ubuntu, I wrote the password manytimes and checked the upper and lowercase. I'm using Ubuntu 11.04 on a Toshiba L500 laptop
View 1 Replies View RelatedOS=FC14 x86_64
DM=Gnome
I've installed pure-ftp, and the firewall is open on port 21, the router has port forwarding.
I can connect to this machine, from my smart-phone and a laptop using its IP Address 77.xx.xx.xxx
I'm getting user OK but its not accepting my password or one I just made on another account
This is whats happening:-
What layer of extra security is stopping this working, as the guy attempting access is trying to send a file to big to attach to an e-mail.
I was messing around with changing the dictionary for our PAM cracklib module and seemed to have stuffed something up.When I attempt to log in through a telnet session with any user that has a password I getAuthentication FailureThis session is no longer connectedI am still able to log in via the Web admin using the root user/password.I can also log in from a telnet session if the user has no password.
View 6 Replies View RelatedI Configured LDAP Server on ubuntu Server 10.04 ,(using url ldap) and Client also it's working fine. After that I changed to ssl encryption and create certificate in server side. Now it's not authenticating from server it's shows Incorrect Password, but I can login though terminal if I am root user ,then it not ask any password it's logon to ldap user. After I changed to ldap server to ssl encryption and made one changes in client side uri ldaps://ip-address/ (/etc/ldap.conf).
View 3 Replies View RelatedAm unable to send mail from Outlook to my Postfix SMTP server.
Am getting the following in the /var/log/maillog.
Code:
Think I've pretty much followed the instructions correctly here.
[url]
Also, I looked for the PID of the smtpd and did a strace on it.
Code:
Code:
However, when I looked at the permission of this file, it should be accessible by everyone.
Code:
New install of 13.1. Installed Pidgin 2.7.1, compiled for SSL per instructions here: [url] but still no love. Any attempt to connect to MSN returns "Unable to authenticate: Authentication Failure."
View 5 Replies View RelatedI have installed fedora 14 in my computer. I installed some applications from root. I created a user id. I am unable to install my internet (broadband connection) now. every time it shows the error "Authentication failure" "install from root" something like that. How can I switch between user and root. Or how can I login as root again?
View 1 Replies View RelatedI just got Fedora 12, and I used su root to change the bin ownership to my primary developer account. For some reason, though, all subsequent attempts to log in as root have had authentication failure, be it through su or through the startup login screen. This does NOT occur for adminstrator tools such as Groups and Users.
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