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Krb5_get_init_creds Keytab Failed With Error

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Wed, 29 Feb preauthentication failed while getting initial credentials 2012 00:51:32 +0100 Hi friends, I have a client not found in kerberos database while getting initial credentials problem for implement kerberos authentication on my squid server. I'm using this article

Klist No Credentials Cache Found (ticket Cache File /tmp/krb5cc_0)

of the squid wiki: http://wiki.squid-cache.org/ConfigExamples/Authenticate/WindowsActiveDirectory My server is Red Hat Enterprise Linux (minimal) 6.2 (all package updated), with the official

Kinit: Clients Credentials Have Been Revoked While Getting Initial Credentials

RH squid package (3.1.10). I launch the kinit without problems: ---------------------------------------------------------------------------------------------------- [root_at_proxy01 ~]# kinit administrator_at_MYDOMAIN Password for administrator_at_MYDOMAIN: [root_at_proxy01 ~]# klist Ticket cache: FILE:/tmp/krb5cc_0 Default principal: administrator_at_MYDOMAIN Valid starting Expires Service principal 02/24/12 08:46:05 02/24/12 18:46:09 krbtgt/MYDOMAIN_at_MYDOMAIN renew until 02/25/12 08:46:05 --------------------------------------------------------------------------------------------------- unsupported key table format version number while starting keytab scan The problem appear when I launch msktutil for build the keytab file: ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- [root_at_hostname ~]# msktutil -c -b "CN=COMPUTERS" -s HTTP/hostname.mydomain -k /etc/squid/PROXY.keytab \ --computer-name PROXY01KRB --upn HTTP/hostname.mydomain --server dc1.mydomain --verbose -- init_password: Wiping the computer password structure -- create_fake_krb5_conf: Created a fake krb5.conf file: /tmp/.msktkrb5.conf-XbERrw -- reload: Reloading Kerberos Context -- finalize_exec: SAM Account Name is: PROXY01KRB$ -- try_machine_keytab_princ: Trying to authenticate for PROXY01KRB$ from local keytab... -- try_machine_keytab_princ: Error: krb5_get_init_creds_keytab failed (Unsupported key table format version number) -- try_machine_keytab_princ: Authentication with keytab failed -- try_machine_keytab_princ: Trying to authenticate for host/proxy01 from local keytab... -- try_machine_keytab_princ: Error: krb5_get_init_creds_keytab failed (Client not found in Kerberos database) -- try_machine_keytab_princ: Authentication with keytab failed -- try_machine_password: Trying to authenticate for PROXY01KRB$ with password. -- try_machine_password: E

HCL Search Reviews Search ISOs Go to Page... LinuxQuestions.org > Forums > Linux Forums > Linux - Server [SOLVED] Problem with Kerberos // kinit: password incorrect / initial login User Name Remember Me? Password Linux - Server

Credentials Cache Permissions Incorrect

This forum is for the discussion of Linux Software used in a server related error: krb5_get_init_creds_keytab failed context. Notices Welcome to LinuxQuestions.org, a friendly and active Linux Community. You are currently viewing LQ as a guest. By joining kinit: password incorrect while getting initial credentials our community you will have the ability to post topics, receive our newsletter, use the advanced search, subscribe to threads and access many other special features. Registration is quick, simple and absolutely free. Join our community http://www.squid-cache.org/mail-archive/squid-users/201202/0475.html today! Note that registered members see fewer ads, and ContentLink is completely disabled once you log in. Are you new to LinuxQuestions.org? Visit the following links: Site Howto | Site FAQ | Sitemap | Register Now If you have any problems with the registration process or your account login, please contact us. If you need to reset your password, click here. Having a problem logging in? Please visit this page to http://www.linuxquestions.org/questions/linux-server-73/problem-with-kerberos-kinit-password-incorrect-initial-login-4175423407/ clear all LQ-related cookies. Introduction to Linux - A Hands on Guide This guide was created as an overview of the Linux Operating System, geared toward new users as an exploration tour and getting started guide, with exercises at the end of each chapter. For more advanced trainees it can be a desktop reference, and a collection of the base knowledge needed to proceed with system and network administration. This book contains many real life examples derived from the author's experience as a Linux system and network administrator, trainer and consultant. They hope these examples will help you to get a better understanding of the Linux system and that you feel encouraged to try out things on your own. Click Here to receive this Complete Guide absolutely free. Search this Thread 08-22-2012, 07:32 AM #1 samanka80 Member Registered: Aug 2012 Posts: 85 Rep: Problem with Kerberos // kinit: password incorrect / initial login Hello everyone! I am trying to configure my ldap on freebsd 9 so that I can authenticate users against active directory. For that I am going to need krb5, I have installed it, it is running cute but when I try to kinit some-user I have a weired problem... lets start from the top, here

and SSH Troubleshooting Submitting jobs to the TORQUE Batch System Project Allocations Software Documentation Details Hardware Details Filesystem Details Mass/Tape Storage Details Transferring http://www.usqcd.org/fnal/troubleshooting.html Files Compilers Using GPUs FAQs Contact Us Troubleshooting Kerberos and SSH problems 1. Kerberos kinit Problems 2. SSH Problems 1. Kerberos kinit Problems Error message: kinit(v5): Cannot find KDC for requested realm while getting initial credentials Problem: /etc/krb5.conf file doesn't contain .FNAL.GOV information Solutions: 1. Replace /etc/krb5.conf with Fermilab-supplied version of krb5.conf 2. Modify /etc/krb5.conf, adding while getting Fermi-specific stanzas as instructed here. 3. If user does not have permission to modify /etc/krb5.conf, copy Fermilab-supplied version into home area, and do export KRB5_CONFIG=$HOME/krb5.conf to tell all Kerberos commands to use the user's copy of krb5.conf. Related problem: On Macintosh computers (OS-X operating system), Kerberos is installed on all recent versions. However, there are while getting initial two locations and names for krb5.conf, /etc/krb5.conf and /Library/Preferences/edu.mit.Kerberos (Note: the file in /Library is named edu.mit.Kerberos, not krb5.conf.) Either will work, but you should only have one. Updated 10/11/2012: Several Mac OS-X 10.6.8 users have reported that only the /etc/krb5.conf file worked for them. Error message: kinit: Unable to acquire credentials for 'user@FNAL.GOV': Cannot contact any KDC for realm 'FNAL.GOV' Problem: You are behind a firewall or are using an internet connection which has a "NAT" (Network Address Translation), such as on a home wireless router Solution Steps: 1. Ping one of the Fermilab Kerberos Authentication servers (such as krb-fnal-1.fnal.gov) to make sure you can reach the server at the other end. If successful move to step 2. 2. Request an addressless Kerberos ticket as follows: kinit -a If you do klist -a you should see as the last line Addresses: (none) Error message: kinit: Preauthentication failed while getting initial credentials Problem: kinit fails with preauthentication error Solutions: 1. Usually the problem is sim

 

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