Kerberos is a computer network authentication protocol which allows nodes communicating over a non-secure network to prove their identity to one another in a secure manner.

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Samba Winbind not working in Debian 8

I am setting up a new samba environment based on Debian Jessie. Installation of PDC was succesfully and Windows clients were able to join. Have a problem at joining the Linux clients. I was following ...
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1answer
1k views

Mount Mac OSX server NFS from Linux <krb5> LDAP?

I'm trying to mount an NFS share from Fedora 16. The server is Mac OS X Server, set up by my coworker. I believe it requires Kerberos/LDAP authentication, so I would start the (probably arduous) ...
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1answer
2k views

How to install/enable ktpass.exe on Windows 7?

How can I install or enable the ktpass.exe utility on a Windows 7 workstation?
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1answer
2k views

'net ads join -U username' failing with an error 'NT_STATUS_IO_TIMEOUT'

I am attempting to provide access to Ubuntu shared directories using Active Directory users and group using Samba. I am following this article to install and configure AD and Unix so that access can ...
2
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1answer
736 views

XP MODE: the time on this PC and the current time on the network are different

Some folks were monkeying around with the Time service and Kerberos on our Windows 2003 network domain controllers last night, and today I cannot boot up XP Mode on my Windows 7 desktop. I've rebooted ...
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1answer
75 views

Connecting to MS SQLServer from a Linux box

I am trying to connect to MS SQLServer from an application that I have written (using Qt) which runs on Linux. Here are some details of the setup: The SQLServer box (SQLBox) is part of my domain (...
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1answer
613 views

Kerberos failure emergency: need to filter a Wireshark capture to show only Kerberos and SPNEGO traffic

I am attempting to troubleshoot a serious Kerberos authentication problem on our SBS 2003 domain (none of our Windows 7 or XP workstations can authenticate). We have logged failed Kerberos ...
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1answer
821 views

Kerberos events are not logged on Windows 7

I tried to configure Windows 7 machine with our web-server running on it to log Kerberos-related events (meaning Windows system Log). I followed these instructions: How to enable Kerberos event ...
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1answer
786 views

kinit gives me a Kerberos ticket, but no AFS token

I'm trying to setup access to my university's IT environment from my laptop running Ubuntu 12.04, by (mostly) following the IT-department's guides on AFS and Kerberos. I can get AFS working well ...
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1answer
970 views

Changing remote server date via Powershell

I need to change the date of a server to the next day then run a sql script and then change the server date back. I figured out how to change the server date via powershell Invoke-Command -...
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1answer
48 views

Why do I get duplicate Kerberos service tickets with no realm?

Under what circumstances will I obtain apparently-valid service tickets that are duplicates and that don't have an associated realm? That is, does this indicate a mis-configuration somewhere? Does it ...
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1answer
77 views

kinit worked but without kinit ssh doesn't work.

Case 1) machine: kinit machine: xxx@production.xxx.com's password: (inputted my password) machine: ssh machineB production.xxx.com Successfully sshd. Case 2) machine: ssh machineB production.xxx....
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431 views

For password protected Samba share on home network, ntlm vs ntlmv2 vs krb5 (kerberos)?

I have a home network with wifi that is password protected. On my home network, I have a file server with a password protected Samba share. The share itself is protected because my network has ...
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1answer
2k views

Directly printing to remote CUPS/IPP server on Snow Leopard

I need to use Kerberos authentication when printing from my OSX machine, however, the machine itself does not have a service account in active directory, so the KDC will not issue a delegation ticket ...
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0answers
20 views

Login to GNOME (Fedora) using my FreeIPA credentials

I have a FreeIPA Server (Fedora Server 23) and a FreeIPA Client (Fedora Server 23 with GNOME). Everything works excepts one thing: I can't login to Fedora Client with my FreeIPA username and password. ...
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0answers
6k views

Likewise on Ubuntu - domain user sometimes disappears from Login Screen

I'm using Likewise to authenticate to a Windows Domain on a laptop running Ubuntu 10.04. Everything seems to be working well, except for one thing. Normally, after the machine boots, I am presented ...
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100 views

How to disable Kerberos authentication for Outlook on Windows 7?

A bit of background: I'm trying to debug an issue with Outlook taking a long time (20s) to connect to Exchange 2013 when being on the same network as Exchange (connected with Ethernet cable) but ...
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0answers
350 views

Force mount.cifs to use specific kerberos ticket

TL;DR I want to force mount.cifs (or smbclient) to use specific ticket (e.g. cifs/server@DOMAIN2 instead of cifs/server@DOMAIN). Long Story I have two smb servers (both are windows): server-a and ...
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65 views

What goes on when using kinit with a keytab file

Wish to get more understanding on the use of kinit and keytab file. For example, if I already have a keytab file generated for a service ( the service registered to active directory by ktpass -mapuser ...
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115 views

Make ecryptfs work on kerberos secured nfs4-share

I have a working single-signe-on setup using Kerberos and openLDAP. I have setup NFS4 to use this infrastructure to control access to the shared folders. This works perfectly fine. The NFS4 sever ...
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0answers
1k views

Can't perform Kerberos login

I can't do a Kerberos login. I've tweaked rsyslog to record *.debug to /var/log/debug, whose output is below. If I attempt to log in with ssh, I get: Jun 6 23:13:05 foo-machine sshd[13965]: ...
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432 views

Thousands of Logon/Logoff requests in Windows Event Viewer from a different computer on the same domain

For the past month or so, a computer that is on the same domain as me has been spamming my computer with logon/logoff requests via kerberos. I get ~4,000 requests on my computer a day. This includes ...
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0answers
2k views

Macos X 10.6 not refreshing Kerberos TGT key

I observed that MacOS X 10.6, if machine is added to an Active Directory and set to authenticate over LDAP to the Active Directory server requests a Kerberos TGT as expected at each user login. ...
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0answers
20 views

git under Kerberos: 'fatal: error when closing sha1 file: Connection timed out'

Trying to update a git repo on a remote server with kerberos authentication. running me@remote:/path/to/repo/$ git fetch local:/path/to/repo yields the error fatal: error when closing sha1 file: ...
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12 views

No kdb5_util available

I installed kerberos server using this page (https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/Managing_Smart_Cards/installing-kerberos.html) Pretty simple. But now when I'...
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15 views

NFS Server: Kerberos for Devices?

I'm setting up a Debian NFSv4 server in my home, and I'm planning to connect my WDTV Live Plus and PS3 in addition to my other computers here. I'd love to enable Kerberos to keep everything secure, ...
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76 views

Loading kerberos keytab from root cron

When I run a script (see below) to load a kerberos keytab from a users cron it works just fine. Running it from root cron however a password is asked for the keytab and it aborts with: kinit: Generic ...
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10 views

Ubuntu Network > Cross device authentication > Single Login Registration

My firm runs an Ubuntu based developer environment. Recently due to the increase of new interns in our firm the firm asked me to setup a machine independent authentication system such that the users ...
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39 views

Kerberos failure in internet explorer on refresh

I have an apache httpd set up to do kerberos and it works fine in chrome, firefox, and IE11. But when I refresh the page in IE11, the resources fail with 401s, removing style and async content from ...
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32 views

Kerberos 5 Tacking on Realm Twice to Principal

I recently updated a Fedora 22 workstation and SSSD logins began to fail. Logs look good until sss_send_pac fails. Oddly the principal user is getting the domain added twice. For example: jgiotta\@...
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54 views

Is it possible to skip kerberos kinit & aklog? I want to use tramp/sshfs

I've been given access to a remote system. I've been instructed that I have to execute kinit and then aklog every time I log in. I am not sure what is the reason for it (I have read the kinit is ...
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28 views

ssh authentication using kerberos keytab

I've been instructed to ssh into a server using a kerberos ticket. I have a keytab that I extracted using kadmin, but I'm not sure how to use it to authenticate. I've been using ssh for years, but I'...
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66 views

why am I getting an error with postgres and kerberos?

I am trying to install a web app that requires a postgres database, with a user and a password. Whenever I try to connect to the database, I get the following error: Cannot connect to database mydb: ...
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73 views

Can't get Google Chrome Kerberos authentication via GPO to work

I'm trying to provide Single Sign on into our Team Foundation Server environment throught Chrome, but I can't get it to work. I used the administrative templates for Chrome and enabled the following: ...
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0answers
91 views

Unauthorized attempt to view reports in SSRS

I have a problem in my environment with unauthorized attempt to access a report from my SQL Server Reporting Services. I have a IIS server with one website. Application Pool for this website is ...
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0answers
2k views

Time Machine over network using incorrect realm for kerberos authentication

Question: how can I influence the kerberos realm that Time Machine, or more specifically NetAuthSysAgent, uses? Time Machine backups over the network are failing on OS X 10.7 / 10.8 clients except ...
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204 views

Samba file shares - ownership of folder accessible for 1 group verified by MS active direcctory

I have a machine set up to share a folder /srv/sambashare, here's an exerpt of the config file: [share] path = /srv/sambashare writable = yes The permissions of that folder are set at 700 ...