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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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.
10
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2answers
2k views

Integrate kerberos and Keychain

It it possible to make kinit ask Keychain for password and not me?
8
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1answer
603 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) ...
5
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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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2answers
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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2answers
2k views

Google Chrome on Mac OS X with Kerberos

Is it possible to use Kerberized Websites with Google Chrome on Mac OS X?
2
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1answer
741 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.
2
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1answer
70 views

Cross realm kerberos authentication with ssh

How can I configure server wide cross realm authentication on an openssh server using kerberos without having to add principles for both realms in the .k5login file?
2
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1answer
374 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 ...
2
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1answer
558 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 ...
2
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0answers
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 ...
1
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3answers
231 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 ...
1
vote
1answer
377 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 ...
1
vote
1answer
525 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 ...
1
vote
1answer
1k 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 ...
1
vote
1answer
78 views

Configuring SASL with kerberos

This is my first time configuring SASL, and I am lost. I have a samba 4 as AD controller, and have installed kerberos. kinit is already succesful, but SASL cannot authenticate anything I have tried ...
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1answer
1k 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 ...
1
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2answers
554 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 ...
1
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1answer
796 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, ...
1
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1answer
37 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 ...
1
vote
1answer
98 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 ...
1
vote
1answer
89 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 ...
1
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0answers
32 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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0answers
60 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
726 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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0answers
311 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
529 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 ...
1
vote
1answer
416 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 ...
1
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1answer
599 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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0answers
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. ...
0
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2answers
45 views

Kerberos and LDAP complex relationship

I have problems understanding the relationship between LDAP and Kerberos (Conceptually). I understand LDAP as a directory service, and Kerberos as an authentication service. We also know that LDAP ...
0
votes
1answer
269 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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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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0answers
18 views

Cannot connect via SecureCRT using Kerberos on Windows

I am running a Windows 8 64-bit desktop and need to connect via SSH to a work server using Kerberos. I can authenticate successfully against my work's Kerberos system but I cannot get SecureCRT to ...
0
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0answers
15 views

How to manually get a kerberos service ticket?

I've registred a SPN, now I want to try to get a ticket for it. I know there is linux kvno to do that is there an analog on windows?
0
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1answer
9 views

“kdb5_util create” fails with an error

krb5-server 1.10.3-33.el6 on CentOS 6.5. I'm following the Red Hat KDC Instructions. Right there at the start, the instructions give me /usr/sbin/kdb5_util create -s. If I run that, I get this: # ...
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0answers
16 views

Authenticating svn+ssh commits from Windows 7 with kerberos token

I am developing on a Windows 7 machine and need to commit my visual studio 2010 projects into the primary repository here at work. I installed AnkhSVN, set it up as my plugin choice for VS, and ...
0
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0answers
54 views

Kerberos authentication failure: “SAM Active Directory Response - user unknown”

Everyone on our network is currently unable to access shared resources on our file server (SBS 2003 server with Windows 7 & XP workstations). A Wireshark packet capture revealed the following ...
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0answers
20 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 ...
0
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0answers
68 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 ...
0
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0answers
323 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]: ...
0
votes
1answer
162 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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0answers
20 views

Where are Kerberos TGTs are saved in windows filesystem?

Title says it all. Where are kerberos ticket granting tickets are saved? Ty!
0
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0answers
70 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 ...
0
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0answers
59 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 ...
0
votes
1answer
132 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 ...
0
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0answers
23 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 ...
0
votes
1answer
205 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 ...
0
votes
1answer
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 ...
0
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2answers
805 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 ...