Software :: SSH With Kerberos Authentication?
Jun 15, 2011I am looking for some links to configure kerberos authentication for ssh.I did tried google-ing it, but could not found any good link to go ahead with it.
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Server :: SSH Not Working With Kerberos Authentication?
Jun 16, 2011Pretty much as described in the thread title. I'm running RHEL6 on both the server and the client.I followed Red Hat's own instructions to set the kdc upI have a user called krb, that has been added to the KDC and I can get a ticket from the KDC, by using
Code:
kinit -p krb
If I then try to log in to the KDC, from the KDC, with
[code]...
Fedora :: Kerberos Authentication Fails At Boot?
Sep 9, 2010I recently upgraded my video card from a GeForce4 MX 440 AGP 8X to a GeForce FX 5500 AGP 8X. After that my 1360x768 monitor was stuck on a 1024x768 resolution. I ran system-config-display and under Hardware tab I changed the monitor setting from "Generic LCD Screen" to "1360x768 LCD Screen" with the acknowledgment that /etc/X11/xorg.conf file was been modified. After reboot the boot process stuck on:tarting kojid: Kerberos authentication failed. "Resource temporary unavailable" (11) [FAILED]I tried that with both 2.6.34.6-54 and 2.6.34.6-47 kernels available on my system.I use the latest KDE version available for Fedora.
View 1 Replies View RelatedServer :: Possible To Use Kerberos For Samba Authentication Without A Domain?
Oct 14, 2010I have a samba server for company file shares but we do not use domain services or active directory service. Each workstation is its own standalone system. (And we want to keep it this way.) I would like to have some centralized authentication though, and it looks like Kerberos will provide that. After a lot of searching though, I can't find any instructions for setting up samba to authenticate users using kerberos without an ADS (active directory service) or domain. Is this possible?
View 1 Replies View RelatedCentOS 5 :: Kerberos Authentication To Active Directory?
Apr 15, 2009I've configured kerberos authentication on my centos 5.2 box. When I kinit with a username in AD and not on the centos box, I get a TGT. However, I cannot log into the centos box as any of the AD users. This is probably a stupid question but do I also need to create the account's on the centos box that I have in AD? If so, does that mean i can then use pam to authenticate users on my cyrus imap process running on the centos box?
View 2 Replies View RelatedCentOS 5 :: Samba Authentication Using Kerberos Cannot Add To The AD Machine
Feb 25, 2011I have the following version of centos,kerbose and samba (Samba version 3.0.33-3.29.el5_5.1, krb5-libs-1.6.1-36.el5_5.5 , krb5-workstation-1.6.1-36.el5_5.5 , centos-release-5-5.el5.centos) i have configured it and qhw i givit give me the following error Failed to set password for machine account NT_STATUS_ACCESS_DENIED) Failed to join domain: Access denied
[Code]...
Ubuntu Networking :: Kerberos Authentication For CUPS Server?
Apr 14, 2010So I was trying to configure my CUPS server and checked the box marked "Use Kerberos Authentication." Now, I cannot change anything and get an unauthorized error every time I try. How can I remove Kerberos? I have access to the local computer as root and can use sudo.
View 2 Replies View RelatedSecurity :: SuSe Authentication Failed After Installation Of Kerberos
Jun 3, 2010I have installed keberos on my suse machine, but after installation now I am not able to login in it even with the root password. I search over the internet but could not find the solution. What to do now and how to configure Kerberos on a local machine with only local users authentication. I mean client and server both are on the same machine.
View 2 Replies View RelatedSoftware :: Kerberos Authentication For Telnet Asks For Password?
Jun 8, 2011I have set up my KDC and telnet in the same server.
I am trying to telnet from a local PC . This is the output I am getting ..
[sudip@kdcclient root]$ telnet -a -F -x kdc
Trying 192.168.1.3...
Connected to kdc.example.local (192.168.1.3).
Escape character is '^]'.
[Code]....
So why it is asking for password ? What I am missing here ?
CentOS 5 Networking :: Kerberos Authentication Broken After Upgrade To 5.5?
May 18, 2010I had a working client installation with CentOS 5.4, using kerberos and PAM to authenticate. After an upgrade to 5.5, logins for users are no longer possible. Instead I get this:
/var/log/messages: gdm: Couldn't set acct. mgmt for <user> /var/log/secure: gdm: pam_krb5: authentication fails for '<user>': (<user@domain>): Authentication failure (Cannot read password) gdm: pam_krb5: account checks fail for '<user>': unknown reason -1765328254 (Cannot read password) gdm: pam:krb5: User not known to the underlying authentication module (Client not found in Kerberos database) "kinit <user>" still works as expected, and <user> has no problems logging in from other types of clients. Something kerberos-related apparently broke in CentOS 5.5,
Ubuntu Security :: Configure SSH Key-based Authentication And SSH Password Authentication In Same Machine For Different User?
Jan 10, 2010I want to configure SSH key-based authentication and SSH password Authentication in same machine for different user .
View 1 Replies View RelatedUbuntu Servers :: Postfix Smarthost + Authentication: Get 535 Incorrect Authentication Data Error
Mar 14, 2011On Ubuntu server 10.10, with a relay smtp server with authentication via postfix; I keep getting 535: Incorrect authentication data. I'm sure my username and password is correct. Heres how I set up postfix: I created a file called smarthosts.conf in my /etc/postfix/ directory that contains the following:
[Code].....
my server uses plain text authentication on port 25. I would like to use security like SSL, but this particular server is unsecured.
Debian :: Way To Make Su Repeat Authentication Rather Then Just Returning Authentication Failed
Apr 1, 2016If I am running a script, let's say a install script. Is there a way to make Su repeat authentication rather then just returning "Authentication failed" and continuing the script?
View 3 Replies View RelatedSecurity :: Make A Choice On What Authentication Protocol To Use For Authentication And Authorization?
Jan 17, 2011I need to make a choice on what authentication protocol I want to use for Authentication and Authorization. I was looking at Radius and then literature suggested that Diameter was a better protocol. Keep in mind I need this on a hetrogeneous setup ( linux & windows together). Diameter seemed like a good fit until I discovered that the open source code no longer seems to be maintained ( C/C++).
I was also looking at Kerberos as an option though there is alot overhead with the server. SSL/TLS or EAP? I am looking for simple but secure and am new at the security protocols.
Server :: Su: Authentication Service Cannot Retrieve Authentication Info?
Mar 12, 2010I have a problem with ldap client authentication in ubuntu. I am using rhel5 as openldap server and I configured ubuntu as client, when I am trying to login the following message is coming."su: Authentication service cannot retrieve authentication info. Sorry"
But when I do search through "ldapsearch" command output is coming without any errors, Can anybody explain what would be problem.
Server :: Squid Proxy Authentication And Without Authentication
May 27, 2011I have a network and am using squid proxy with authentication I want to create another subnet without authentication.
View 1 Replies View RelatedDebian :: Set Up Kerberos On 4.0?
Jun 27, 2011I have Debian 4.0 installed and I want to set up Kerberos. If anybody knows how to set up.
View 2 Replies View RelatedServer :: Ssh And Kerberos In RHEL?
Aug 3, 2010I've my RHEL4u4 integrated with Active Directory.
I can logon to computer with username/passwd from AD.
But if I try to use ssh, is doesn't work
When I try to connect to the same computer using kerberos I receive this messages:
ssh -vv server.domain.com
....
debug1: Authentications that can continue: publickey,gssapi-with-mic,password
debug1: Next authentication method: gssapi-with-mic
debug2: we sent a gssapi-with-mic packet, wait for reply
[Code]....
and it tries to use publickey and finally, user/pass.
What do I've have do for using ssh and kerberos? I use samba for joining computer to AD. I tried it in ubuntu 8.04 and likewise-open and it works, but not in RH-Samba.
Ubuntu Servers :: Kerberos - LDAP - NFS ?
Feb 7, 2011I've currently got Ubuntu server configured so that clients can login using LDAP user accounts that I've created using ldapadduser (from the ldapscripts package).
I've also got NFS exports working so that /home can be exported to clients. Kerberos authentication is enabled for NFS and clients require a nfs/clienthostname.domain principal to be able to mount the NFS share.
However, I now realise that for LDAP users to be able to access the mount they need their own Kerberos principal. If I run kinit dan@DANBISHOP.ORG then I can access /home/dan as user dan otherwise I get permission denied.
My question then is how best to proceed... is there a way to configure the client/server so that once a client has mounted the nfs share using Kerberos, all users can access it without their own principal?
It seems more usual to create kerberos principles for all users, but then how does one manage users? Using ldapscripts is very easy, but if the admin then has to manually create kerberos principals everytime, it could become very tedious. Furthermore how do users change their password if kerberos is used for authentication?
Ubuntu :: Reset A Kerberos Password?
Aug 5, 2011We have an employee that left our place of business on bad terms and his computer has been locked out since. The comp runs Ubuntu 10.10.
We have followed the regular password reset methods online but the Kerberos password seems to be getting in the way. We have no idea was this password is and it seems impossible to work around. Does anybody know a way?
Were were about to gain access as the root user but cannot access other user accounts as the root user.
Security :: Kerberos Versus LDAP SSL
Apr 21, 2011I am integrating my Unix box to the Windows AD using PAM_LDAP and Kerberos enabled. I was wondering, since Kerberos is enabled is there any point to enable SSL on my LDAP.conf? My understanding is that since Kerberos is enabled, therefore the username/password is sent securely there isn't any benefit of enabling SSL on the LDAP.conf? It's one of or another.
View 1 Replies View RelatedServer :: Configuring SSH To Access With Kerberos
Jan 14, 2011I'm trying to configure SSH for accessing with kerberos. I try to configure a SSO. The computer is joined to Active Directory. I can access with the user/pass from AD (using samba/winbind), but if I try to connect using kerberos, the error:
Server not found in kerberos database. The server is CentOS 5.5, but also tried with RHEL 5.5.
Configuration
Domain: net
Realm: TEST.NET
User: usertom
Server ssh: testul0001.test.net
Client ssh: testul0001.test.net (connect to the same computer)
Domain controler: testgc01.test.net .....
Server :: Ssh Login Via Windows AD / Kerberos?
Mar 24, 2011Following the instructions listed here:[URL].. I have a machine set up to use Kerberos authentication for logins. The problem is, logins are now incredibly slow and any user from the AD fails to log in.Here's the output from the server in debug mode:
[Code]...
What I want to do is use a Windows AD with the UNIX extensions to control user logins on CentOS 5.5 servers. Previously I've used OpenLDAP and AD, but that was still two separate auth methods and I just want one.
Red Hat :: Kerberos Versus LDAP SSL - Benefits?
Apr 21, 2011I am confused with the concept of Kerberos and LDAP SSL. I am in the midst of integrating my Unix box with the Active Directory hence the use of PAM_LDAP method. I understand that since it's non-secure transmission hence We use Kerberos to authenticate. If we already used kerberos to authenticate i.e. it means that the username/password is not transmitted in clear text. Why we still need LDAP SSL? What is the benefit?
View 3 Replies View RelatedCentOS 5 :: Unable To Do Kerberos Login?
Mar 10, 2009I have an NIS server that is working well, and I want to use Kerberos to improve the overall security.I have already installed Kerberos client and server on two machines respectively.Currently the NIS server, Kerberos server, and KDC are running on the same box, and every box is in the same private network.I am having trouble logging in using the user account defined in Kerberos database. Here's /etc/krb5.conf on the client side:
[logging]
default = FILE:/var/log/krb5libs.log
kdc = FILE:/var/log/krb5kdc.log
[code].....
Fedora :: Kerberos Admin Password Lost?
Aug 3, 2010I just took a job and the admin password for the AFS is missing. How do I find/reset this password? I have the root password for the machine it is installed on.
View 4 Replies View RelatedOpenSUSE Network :: Kerberos + LDAP With YaST?
May 26, 2011In the OpenSUSE documentation I red this very exciting chapter Chapter 6. Network Authentication with Kerberos That mentions "Using LDAP and Kerberos" which combined with NFSv4 would give my office net functionality of a M$ Win network.
We are still on 11.2 (we have no win clients at all) and I was testing different setups of 11.4 in VM, but I can't get YaST to configure the LDAP with Kerberos setup (our current setup does not use Kerberos only LDAP). Unfortunately I could not find any meaningful HOWTO on how to do it in SuSE. The page in docs involves editing config files, but I would like to avoid this, because from my former experience with Samba, as it would mean I cannot use yast anymore and that is sad.
Is there a way to configure LDAP + Kerberos (in terms of issuing of krb tickets at login) with YaST?
PS: I basically need Kerberos for NFS and Intranet site.
Ubuntu :: Connect To Samba Share Using Kerberos
Jul 12, 2010I have an Ubuntu server that's part of a Windows domain and requires Kerberos authentication when connecting to its Samba shares.I have an Ubuntu desktop machine that is capable of obtaining Kerberos tickets via kinit and can successfully connect to the Samba share on my Ubuntu server using Kerberos authentication via smbclient.
View 2 Replies View RelatedSecurity :: Secure Samba Server With Kerberos?
Jul 17, 2010Is it possible to secure samba server with kerberos? I want to know whether we can use kerberos authentication to secure samba user name and password so that mo one can sniff that information. configuration or any URL link from I can get the exact configuration.
View 1 Replies View RelatedServer :: (Kerberos Setup) Cannot Login With Kadmin
Oct 20, 2010I'm setting up kerberos and I can't login with kadmin but I am getting tickets with kinit, my princs are valid, and my dns resolves with dig/ping, am I missing something?:
kadmin:
Code:
home-plug:/home/steven# kadmin
Authenticating as principal root/admin@SOUR-LAN.LOCAL with password.
Password for root/admin@SOUR-LAN.LOCAL:
kadmin: GSS-API (or Kerberos) error while initializing kadmin interface
auth.log
Code:
Oct 20 22:18:13 home-plug kadmind[8935]: Seeding random number generator
Oct 20 22:18:20 home-plug krb5kdc[8778]: Interrupted system call - while selecting for network input(1)
Oct 20 22:18:20 home-plug krb5kdc[8778]: shutting down
Oct 20 22:18:20 home-plug krb5kdc[8939]: setting up network .....