Red Hat / Fedora :: NIS / YP Password Change Rejected On CentOS 5 4
Sep 16, 2010
this problem is becoming too frequent now:
a) User is created using our standard protocol on the NIS/YP server.
b) *Sometimes* : user is rejected at first login. Password not recognized.
c) When going to do a password reset, being root on the NIS/YP server something like this happens:
# passwd johndoe
Changing password for user johndoe.
New UNIX password:
Retype new UNIX password:
NIS password could not be changed. << ------------- ERROR
passwd: all authentication tokens updated successfully.
The entry in the log doesn't help much: Sep 15 10:56:28 nisserver rpc. yppasswdd[2149]: update johndoe (uid=31742) from host 128. xxx194. xxx.xx rejected Sep 15 10:56:28 nisserver rpc. yppasswdd[2149]: Invalid password.
Notes:
1) A valid & strong password -known to work with other account- has been given.
2) The password is indeed changed in /etc/shadow, and the NIS/YP databases update (cd /var/yp; make) has not been done yet.
I know there is a different condition when the password is updated by the user from a Fedora host (long encoding using sha512 vs original md5 encoding in the server) - but this is happening locally on the CentOS-based server before having the user change the password. But even that has worked before with dozens of users.
A recent occurrence of the issue kept rejecting the original password chosen by the user until he decided to choose a different one. I have tried different from easy to elaborate passwords with no difference. This is just happening now with two new users: one of them reported that it worked just fine, the other is being rejected - they were created at the same time.
I couldnt find any relevant threads so I created a new oneI am at my wits end sudden my encryption password is being rejected. It has worked before and it is written down I even tried loading a LiveCD hoping maybe an update screwed it up but even in the LiveCD the password isnt working.This wouldnt be such a big deal if I havent changed all my passwords and stored them in KeePass and havent got a chance to back it up yet
On the several machines on my network, I am having difficulty using ssh and sftp.
Machines are as follows:
1. a Slack machine 2.4.26 kernel
2. a Suse 10 machine 2.6.22.xxx kernel
3. a Ubuntu 9.10 machine 2.6.31.20.xxx kernel
I can use sftp/ssh between 1 and 2. in either direction - no problem.
I cannot sftp/ssh between 3 and anything. sshd is running on the ubuntu machine. I used to be able to sftp/ssh between 2 and 3 but only if 2 started the process.
The failure is machine #3 not accepting the password to or from the other machines, or at least that's how it presents.
I've been using the Ubuntu desktop for a couple of years now, but I don't have much experience using the terminal.
I've just set up a home server using Ubuntu-server 64bit which will be headless and its main function will be a Mythtv backend.
I've worked out how to use VNC to send a desktop from the server to my laptop, but when I try to use any programs which require root privileges such as synaptic or the user/groups manager, the pop-up asking for authentication refuses to accept my password.
Is there a setting I need to change on the server which prevents remote users from getting root privileges on the desktop?
Suddenly Debian started rejecting my user pw and I have to login as root. Perhaps this is a coincidence, but this started when I re-booted after adding Russian keyboard layout in etc/default/keyboard. The Russian keyboard added successfully.
Being logged in as root, renewed the pw of my user account (actually assigned the same as wes previously), got confirmation the the pw has been changed. Reloaded. Yet it keeps complaining that the pw is wrong.
I have installed Timeshift. Administrative password is requested when I click Timeshift icon in Gnome menu. I enter the password (or paste it to be sure) but it always returns with "incorrect password, please try agian" message. I am sure that I type my password correctly.
I looked at the icon's properties. It runs "timeshift-launcher". I changed it as "gksudo timeshift" or "sudo timeshift" or "gksu timeshift", enabled "Launch in terminal", disabled, but nothing changed. Always same password request window appears and it rejects my password.
However when I run "sudo timeshift" or "gksudo timeshift" command in Terminal it accepts my password and runs.
When I run for example Synaptics via Gnome Menu, password request window is with black background and it accepts my password. However when I run Timeshift, password request window is with gray background and it rejects.
Root password was not defined in my system during installation and I am the only user. I run administrative commands via sudo without any problem.
Someone hacked my CentOS 5.4 test box, that I run at home with a gnome interface. It is connected to a domain name, the hacker changed only the root password. How can I change the root password? I get a graphical Grub at startup and if I press "e" nothing happens. Is there a different way to have Grub boot in text mode? Remember that I don't have root access. I was thinking to use the linux rescue mode, but I don't know what steps/commands to enter.
for some reason the password just won't change, maybe I have the command wrong? Here is what I am doing and the error.
[root@server~]# useradd testuser [root@server~]# passwd testuser Changing password for user support. passwd: Failed preliminary check by password service
I'm a web developer so my experience in system admin in low. The issue is regarding a VPS. The VPS is used as webserver, the mail server is set to another machine. Anyway I need basic email sending functions for site contacts, alerts and so on.
I GOT IN TROUBLES WHEN I set a daily cronjob to dump a db and e-mail the sql to a gmail address, and fall in Spamhouse CBL blacklist. Before I was sending e-mail only to address of my own company (to the mail server, not locally). SO I GOT THIS PROBLEM. E-mails are rejected and the error quickly sent back to root:
I am using CentOS 5.6 and recently, well since I updated to 5.6 when I login through ssh/telnet I am prompted to change the password of any account which is my LDAP directory. Local accounts are unaffected. I haven't tried the console as this server is tucked away in a tiny room. This is really annoying because I don't want to run password expiry on that server and I'm sure that there's nothing in LDAP to indicate password expiry is on. My shadowmax is 9999 by default for every account..which is over 27 years I think. It's only started recently. I'd like to know how I can turn the expiry message off. I'd like to get rid of cracklib as well.
my etc/pam.d/sshd is #%PAM-1.0 auth include system-auth account required pam_nologin.so account include system-auth password include system-auth session optional pam_keyinit.so force revoke session include system-auth session required pam_loginuid.so
I am running ubuntu 10.04 64 bit with Centos Directory Server centralizedauthentication tool. I can log in just fine with my ubuntu client, however when go to my Directory Server and tell it to require a password change on reset for any of my users, the ubuntu client doesn't require the user to reset their password. the reason I need this to work is so I can reset a users password from the Directory server and then have it use what I set it to for their next login attempt but then require them to set their own password. After days of searching I have only found out that it can be done by setting the option in Directory Server but Ubuntu 10.04 seems to just ignore the option. I am using the libnss-ldapd and libpam-ldapd packages on the Ubuntu client because the libnss-ldap and libpam-ldap didn't work at all, what am I missing?
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?
I have a server, with a trust relationship. Thanks to that, I can log in without being prompted for the password.But - I'm trying to Change the password, using passwd. I get:Unknown Errorpasswd: unknown user (uid=0)This is a NIS server, and typing passwd <account> brings up a prompt for the old password of <account>What should I check next? I only have a few days before the account locks out...
I got during my last year of high school, and I recently installed Fedora 11. During the installation, I misunderstood one of the questions, and set my root password as what I wanted my account password. I want to go in and change it, because it's pretty easy to figure out and has me feeling really vulnerable, but it won't let me. I went to System-Administration-Root Password, entered my password, and put in a new one, but it won't let me click Change Root Password. The button is faded out and unclickable. I've tried several different passwords, and triple-checked each to make sure I typed it in correctly, but it won't work.
Forgot root password on fedora 10. Reboot into runlevel one and changed passwd and it said all tolkens updated. Typed exit and it didn't reboot and at login screen I logged in as other "root" and it didn't work with new password. So I redid the runlevel 1 and password change and typed init 6. It didn't work after that also. How to change fedora 10 root password if the old password is forgot?
How do I change my default keyring password in F11?
The instructions from here no longer work:
Code: $ yum search gnome-keyring-manager Loaded plugins: dellsysidplugin2, fastestmirror, refresh-packagekit Warning: No matches found for: gnome-keyring-manager No Matches found Longer story:
Somehow I got my keyring and login passwords out of sync. I went to change my login password using passwd on the terminal. I meant to change it to (let's say) "abcdef" but typed "abcdfe" twice. Realizing my mistake I tried to used passwd a second time to change it to "abcdef", but passwd complained that the new password was too similar to the old. So I used "su -c 'passwd myusername'" - I was able to change my login password but I guess this did not update my keyring password. I've tried changing my password using passwd as myself (not root) to something completelydifferent, but my keyring password remains the first password (e.g. "abcdfe").
I've changed my wireless network password and when I try to connect through my F10 machine, it continues to use the old password. I've changed it a number of times through the GUI that pops up (Wireless Network Authentication Required) and also through the Edit Connections GUI but they always revert back to the old password and disregard the new one.
I am running Fedora 12 as Guest OS in VMware Player. I installed Fedora 12 by using a Prepackage VM . The root user name and p/w was supplied by the person who made this appliance. Is there way for me to change root user name and pw
I recently installed Fedora 13, Xfce, on my HP netbook. It's using AR9285. When i try to connect to my network with WPA enabled it will not work despite the password info being correct. I'm using a DI-514 router, with no updates to firmware. It only works, if I change the password, then use said password, then, when I disconnect, said password no longer works. WEP works just fine, open network works fine, why wont WPA-PSK work?
I have some users authenticated with AD and some locally, I want to allow only local users and root to change their password with passwd, not users authenticating over AD - so far I have this in my /etc/pam.d/passswd file
password sufficiant pam_unix.so shadow nullok audit password required pam_echo.so You CANNOT change your password using the Linux passwd command
[code]....
This works fine in allowing my normal users to change passwords and my AD users to be blocked, however, root cannot change passwords - the pam_rootok module seems only to work for auth - is there a way I can define root as a sufficiant check for password?
I have a problem with my fedora workstation.I am trying to change my ldap user password through passwd command.When I first create the user on ldap server, I use md5 and create the user password.This is the entry:
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
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.
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?
How can I change the root password of MYSQL server. I have just finished installation, but I mistakenly typed the wrong root password, and now I need to change it from command line, because I cannot even access the UI.
