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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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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19 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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5 views

Linux Kerberos 5 server services and utilities stopped functioning: hash: could not retrieve header

I have been installing Kerberos 5 server on RHEL6 for some integration work. Installed yesterday and created admin principals which all seemed to work. Today I stopped the services, before trying to ...
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17 views

Convert cain & Abel KERBEROS Pre-Auth Hash to John The Ripper format

I got the following KERB5 pre-auth hash from CAIN software: slma.com\keith FA1CA9F0C2384A6FF00BEC993B8182B1030C7480D8F2EFBA6AD9179E7C130EC2EDB256227317C58D313215246E15733011A10402 I am using John ...
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100 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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318 views

LSA (LsaSrv) “The security package Kerberos generated an exception. The exception information is the data.” caused by NPS

I have a Windows server (2008 R2 with SP1) that runs as a domain controller, and uses Network Policy Server to authenticate Wireless 802.1X devices. There are two access points available. Suddenly ...
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71 views

nslcd failing to come up in Lubuntu 14.04 Desktop

After installing Kerberos and LDAP via instructions from Ubuntu's Single Sign On instructions, modified a mite to fit my setup, I could manually sudo service nslcd start and then call getent passwd to ...
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10 views

Where are Kerberos TGTs are saved in windows filesystem?

Title says it all. Where are kerberos ticket granting tickets are saved? Ty!
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51 views

Impersonating windows server using client from outside the domain

Let me describe a situation: I am sitting on a Mac in a remote office and I remotely administer few different small Active Directory domains. My boss ask me to collect some client machine ...
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28 views

Capture user input to “kinit” - Works on OS X, but not Linux via “script”

I have a script that was written on OS X and utilizes the "script" command. With the -k flag it will log keys sent to the program, but that option is not available in the linux version of "script". My ...
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392 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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73 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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2answers
177 views

Kerberos Server and logs

I'm attempt to set up a Kerberos server, and am running into some sort of issue with the configuration message. Unfortunately, the daemon refuses to tell me what went wrong; it tells me to "see log ...
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20 views

How to make kerberos5 client use a specified KDC first, then try DNS?

Our DNS for KDC is rotating globally and I cannot control that. Sometimes, there are kerberos related account issue, that the only solution on clients is to wait a few days for the data to sync ...
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1answer
579 views

Apache / Nginx - Reverse Proxy and Kerberos Constrained Delegation

I am after a solution to replace Microsoft TMG, and i am hoping there is an open source route of acomplishing. Currently using TMG we are reverse proxying Web resources say for example sharepoint, ...
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144 views

Script to interactively join WPA2-Enterprise network without joining domain

I'm working in a Windows domain environment, using Active Directory, Radius, and a linux Squid proxy server. I'm trying to hook up a Windows 8 tablet to this system, but due to company policy I can't ...
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1answer
506 views

How can I enable Kerberos / GSSAPI authentication in Pidgin on Linux?

Some XMPP/Jabber servers (e.g. Openfire) support single-sign-on authentication using Kerberos. Pidgin claims to support this, but I was unable to find documentation on how to set it up.
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36 views

Is it possible to set an SPN with a path?

I'd like to know, if it is possible to set an SPN with non root url as something like that: setspn -U -A http/www.example.com/someApp/path/ someServiceUser So that different applications running in ...
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1answer
206 views

Does plink support GSSAPI?

Does plink support GSSAPI? I know putty itself does and enabling GSSAPI works fine with putty, but for some reason it is not working with plink. I was under impression that plink would work the same. ...
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248 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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1answer
177 views

sshfs with gssapi

For my normal login with ssh I have in my ~/.ssh/config the following lines: GSSAPIAuthentication yes GSSAPIDelegateCredentials yes ... so that if I call kinit and get a Kerberos ticket then I ...
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187 views

Kerberos? Still Confused

I come here asking a simple (yet confusing) question. I have extracted the folowing from cain & able: PRIVATE.ELMBROOKSCHOOLS.ORG\17grossa ...
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1k 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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472 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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2k views

Google Chrome on Mac OS X with Kerberos

Is it possible to use Kerberized Websites with Google Chrome on Mac OS X?
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453 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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90 views

Why can I see two distinct /tmp dirs?

Problem I am seeing two different /tmp directories. In a plain GNOME terminal ls -lia /tmp gives the following: total 136 5797 drwxrwxrwt 36 root root 780 Oct 5 20:57 . 2 drwxr-xr-x 21 ...
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2answers
688 views

Active directory Kerberos OSX problems

I'll try to keep this short, but informative. I'm currently unable to bind OSX lion (10.7.4) machines to our AD. OSX kerberos (heimdal) is unable to locate the KDC service. However i can bind ...
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330 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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175 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 ...
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1answer
496 views

Error during configuring kerberos5 using macports

While trying to install libmemcached via MacPorts, I hit the following issue: libmemcached @0.40 +universal ---> Computing dependencies for libmemcached ---> Dependencies to be ...
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1answer
287 views

Windows: Obtain Kerberos TGT from another principal

I'm looking for a way to obtain a tgt (ticket granting ticket) from a second kerberos principal. In my job I work with a regular PC (member of AD) from our university's it departement but I also ...
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2k views

Integrate kerberos and Keychain

It it possible to make kinit ask Keychain for password and not me?
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1answer
516 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
520 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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2answers
6k views

Can't connect to my server using SSH Kerberos Auth on OSX 10.7

I just upgraded my Mac OS to 10.7 Lion. It has worked well before. But, only kinit working normally now, I can't ssh to my server. After reinstalling the "Mac OS X Kerberos Extras", it didn't get ...
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1answer
577 views

get kerberos ticket for autologin on linux

I tried to configure an automatically login for a user with kerberos. I tried using 'mingetty --autologin USERNAME', but gives me a session without a kerberos ticket (which i require to access some ...
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3answers
228 views

How am I able to check emails on outlook in my office windows machine without entering password

I have a basic question. At work, I log on to a domain from my work machine using a password. Then, once I am logged-in, I can read mails in outlook without having to enter any password. What I ...
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1k 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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736 views

Mac OS X 10.6 Kerberos authentication for network shares

I'm on a kerberos network, and I want to add someone's network kerberos username to one of my shared folders on my mac. On windows, assuming you were on the same domain, you could just type in the ...
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4k views

How does Kerberos' preauthentication increase security?

This FAQ entry (and the RFC itself) states that pre-authentication addresses a weakness in initial implementations of Kerberos that made it vulnerable to offline dictionary attacks. The FAQ state: ...
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1answer
362 views

Default Kerberos realm

I was following the instructions to install Samba from their website, and it said I needed to install the package krb5-user. So I typed: sudo apt-get install krb5-user It started installing, and ...
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4k 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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1answer
960 views

Can't chgrp in NFS4 mounts

I'm using Linux in a large multi-user network. Let A be some group which I'm am member of, but which is not my primary group. According to chmod(2) I should be able to chgrp a file to group A. Trying ...
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1answer
1k 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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3answers
3k views

Windows Vista and 7 crossrealm authentication MIT Kerberos

I'm using Windows Server 2008 and Windows Vista and 7 for cross realm authentication using MIT Kerberos 1.6 but when i try to login with a user the KDC answers: (wireshark output) error_code: ...
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11k views

Does Firefox support wildcards in NTLM / Negotiate URI's for autologin?

Following this question about Windows Domain Authentication with Firefox, does FF support using wildcards in the URI's? I'm not finding anything where it mentions support either way.