Fedora :: Attach A RHEL/CentOS System To An Active Directory Domain?
Mar 22, 2009
Attach a Fedora/RHEL/CentOS system to an Active Directory DomainBelow is a step by step outline of how to configure a Linux Samba fileserver to use an Active Directory domain for authentication and authorization in place of flat files. Note that this configuration has been replicated using Fedora 10, RHEL 5.3 and CentOS 5 since they all more or less share the same code base.me of the example server in this document is erver1.domain.forest.org, substitute correctly where appropriate. At the very least following packages must also be installed:
sambasamba-commonsamba-clientkrb5-workstationopenldap-clientsIt would be prudent to understand the underlying concepts of how Kerberos and Samba work prior to deploying this type of server. I find that SE-Linux will interfere with Samba services, particularly with winbind. I usually set SE-Linux to be in a permissive mode. It is possible to update the SE-Linux policies but that is outside the scope of this document, i.e you're on your own. In some cases I turned SE-Linux off since it was causing winbind to stop responding.
1. Set NTP to use the correct server for your Active Directory domain:shell> system-config-timeSet the primary NTP server to be your domain/forest NTP server2. Make backups of and edit the following system configuration files:a. shell> cp /etc/resolv.conf /etc/resolv.conf.bakb. shell> vi /etc/resolv.conf
nameserver dns_server1_ip_address
nameserver dns_server2_ip_address
search domain.forest.org
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Mar 4, 2010
i have installed RHEL5 on my system.i want to join my system on my organisation s active directory domain.how can i do it?suppose domain name is "abc-xyz"
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May 13, 2010
The company I work for, as usual, is Microsoft-centric. I'm attempting to integrate my Ubuntu server into the domain to allow domain users to authenticate to the server and access file shares using Samba. Here's my current configuration:
[Code].....
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Apr 29, 2011
I manage to get RHEL Authenticate to Active Directory using LDAP and Kerberos. When a user authenticate to the Unix, the Unix system will check (using Kerberos) to the AD. However I just found out that when the RHEL (LDAP) did the authentication to the AD (to ensure that the RHEL has the right permission to query the LDAP database), it uses simple bind which send the username/password unencrypted over the network.
1) Can We use Kerberos as well? for the initial authentication described above?
2) If Not possible, is there a way to encrypt the username/password in the storage (ldap.conf -because it's world readble)? I know that for tranmission I can use SSL.
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Mar 11, 2010
When i try to join my Ubuntu server to Microsoft Active Directory domain, i get the error message below.
Kinit failed: Clock skew too great Failed to join domain: Time difference at domain controller I know the reason is because of the time difference between my domain controller and the Ubuntu server. But what i want to know is that possible to join a domain without time synchronisation? Because my domain controller is working for another time zone, for another Country, so i can not synchronise it with my Ubuntu server.
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Jun 29, 2011
I need to bring my Suse 11 server into active directory domain using samba and winbind. Please let me know the procedure how to do this.
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Jun 28, 2009
Did a netstat -an got this
Active UNIX domain sockets (servers and established)
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Jul 18, 2010
How to control a windows system by using linux server i know linux is a cross flatfarm. But how to Authenticate windows system like in windows we use AD for user authentication.
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May 6, 2009
My boss has commissioned me with creating a new file server to replace a M$ server that is installed now. We want to go with Linux for many reasons, but one big thing we want to be able to do is still manage permissions using M$ type permissions from our XP desktop's rather than unix style permissions. How would this be accomplished on a CentOS box?
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Feb 9, 2010
I have a freshly installed CentOS 5.4 box which I'm trying to get AD authentication working on. I have AD authentication via kerberos working for SSH, but when I try and have it work for SMB shares I'm getting an access denied error. What's even more odd is that when I tell pam to use winbind to authenticate SSH...it works just fine. Wbinfo -a username%password authenticates fine and getent passwd and group enumerates the AD users and groups ok. My smbd.log was throwing the following error "Failed to verify incoming ticket with error NT_STATUS_LOGON_FAILURE" but has since stopped for some reason, but googling this indicated I needed re-join the machine to the domain, which I have.
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Jan 4, 2011
How can the linux boxes authenticate from Windows Active Directory ? The Apache should also authenticate from Windows Active Directory ?
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Apr 15, 2009
I'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?
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Aug 19, 2009
I've been looking for alternatives to Active Directory with Centos mainly SAMBA and OpenLDAP. I have worked with SAMBA and I know I can create a PDC and make clients join a domain but how about enforcing Group Policy?... is this possible with SAMBA or OpenLDAP/LDAP?
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Nov 4, 2009
I would prefer to use a linux server for authentication but I will need the same configuration features.I have been looking for a good guide to setting up CentOS as an alternative to Active Directory, but have not found one yet.The features I want to see.
1. works with Windows clients.
2. Network Home folders (does not neessisarly need to hold profile information)
3. Logon scripts for clients.
4. shared printers
5. shared folders.
6. can log linux boxes in with the same credentials and logon scripts.
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Aug 13, 2011
okay so we have multiple servers running CentOS and multiple people who need access to these machines for various tasks. i would like to be able to use the credentials from Active Directory (running on server 2008) to give them access to these servers without having to go through each server and add these people into permission groups. basically a single sign-on for all of these servers depending upon what permissions were granted in Active Directory. how do i go about doing this?
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Apr 22, 2009
First, I'm extremely green with linux. I'm trying to configure my CentOS 5.2 box to authenticate my SSH users with my Active Directory. What would be the best way to go about doing that? I've configured Winbind and joined it the the domain but I'm not able to login locally or SSH with an AD account. I'm not sure where to go from here. Also my users will not be accessing any file shares on this box, SSH only.
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Jul 29, 2009
I was working to integrate Centos 5 and AD 2003 R2, this is my set up Windows side:
1. Install Identity Management for Unix, (Windows R2 already includes the Unix attribute not entirely necessary to install IMU, but it makes easier to configure the attributes from ADUC, when IMU is installed the Unix attributes TAB is shown in the user properties)
2. Configure the Unix attributes for every user account that will be authenticating from centos.
3. Create an user account to be used as a proxy for ldap, a regular user would be enough. Password never expires.
4. Create a computer account for every centos host; assign this computer account as pre-windows 2000 account.
5. Assign a value of 4128 to the user account control property for the computer account.
[Code]...
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May 21, 2010
I have just installed the 32bit and 64bit versions of CentOS 5.5 and was wondering how I can add these machines to Active Directory for authentication. I've done this in the past with CentOS 5.4 using the GUI and everything worked just fine but now need to do everything from the command line.
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Jun 22, 2010
I am testing CentOS 5.4 on a virtual machine before deploying to a server.I am trying to get authentication through our Active Directory server, without actually joining the machine to the domain.I tried multiple tutorials, including this one: URL...Basically I enabled authentication through kerberos and modified my ldap.conf file.
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Mar 24, 2011
I need to setup windows Active Directory system and want to use our existing ubuntu server as Primary Domain Controller (samba). What I'd like to know is if its possible to setup a machine running standard Ubuntu as the PDC, or if I would need to install Ubuntu server.
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Jan 22, 2010
I have running windows 2008 active directory. need to login ad users to linux system, which is inside the windows domain
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Sep 30, 2009
I am looking for help connecting my mainframe Linux to the active directory world.
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Jan 18, 2011
1. I have two domains domain1.com and domain2.com on my centos server.
2. In a file in domain1.com I am writing the php function
chdir('/var/www/vhosts/domain2.com/httpdocs'); but it is not working at the same time if I am trying to change the directory to one of the subdirectory in domain1.com than it is working means chdir('/var/www/vhosts/domain1.com/httpdocs/css'); is working.
3. The problem is I cant able to change the directory from domain1.com to domain2.com. /var/www/vhosts/domain1.com/httpdocs => /var/www/vhosts/domain2.com/httpdocs is not working
Is it some permission issue or anything else ? Is it something related to chroot jail or what?
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May 19, 2011
My all production PC r running under ADC windows2008 server. Recently I implement a file server in CentOS 5. Now I want to integrate Samba (File sharing) using Active Directory so that all access permission to file server comes from AD's permission.
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May 3, 2010
I've been trying to find a single set of instructions that define how to configure Fedora 12 to authenticate using Active directory without 100 steps (plus or minus) but difficult at best. I have about 12 Fedora 12 servers running as stand alone servers in a Windows 2003 network.
Can someone point me to a great set of instructions that can easily be replicated across multiple servers and a few workstations?
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Sep 7, 2010
I want to install a FTP server (VSFTPD) on my Redhat Enterprise Linux 5.5 and i want to use Active Directory LDAP (windows server 2008 enterprise) for authentication. I can't add my windows LDAP to FTP server. I try my best but i cant to config it.
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Jun 5, 2011
I am trying to integrate my centos machine with active directory [Windows Server 2008] using Kerberos and LDAP. I can now successfully SSH to my linux machine as an active directory user. Then it automatically creates home directory for that particular user using the PAM module.
My problem is that i cannot login to GDM using the same active directory account. Should I do some configuration changes for GDM login to take place using an active directory account.?
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Jan 4, 2010
May I know if there is any tutorial to sync up Fedora DS to ADS?
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Feb 9, 2009
Something that has been in the pipleline at work for a while is user-based web directories. Main PDCs are running Windows Server 2003 using Active Directory, ideally what would happen is that users have a web share under [URL].. - the server behind this would be Linux (either Fedora or CentOS).
What kind of configuration would be needed for Apache to make this possible? The way I have planned so far is to have the Linux box auth against the AD domain (possibly joined), with Apache setup to share local public_html folders. Not sure how I can get rid of the tilde from the start of the username, but it should be pretty easy.
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Apr 13, 2011
Is there a tool I can use in Fedora to modify the schema in Active Directory?
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