Red Hat Bugzilla – Bug 163414
how to restrict server logins
Last modified: 2007-04-18 13:29:24 EDT
From Bugzilla Helper: User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.8) Gecko/20050511 Firefox/1.0.4 SUSE/1.0.4-1.1 Description of problem: I'm not sure this is a bug more than lack of understanding however I couldn't find anywere else to post this, so here goes; I'm testing out the directory server on a few linux servers to be used for authentication however I can't seem to find a way to restict access to a server based on user or group memborship; is there a way to allow certain users to login into certain boxes but not others when authenticating against the directory server? Version-Release number of selected component (if applicable): How reproducible: Didn't try Additional info:
Do you want to allow certain people to be able to login to certain hosts? This is done via the "host" attribute, a multi-valued attribute which holds the FQDN of the hosts you want to allow access to. You need to get this attribute into your users' entries. Many programs require that the user have the posixAccount and shadowAccount objectclasses (e.g. they do a search like (objectclass=posixAccount)), so you will need to add those objectclasses to your users' entries. The "host" attribute is in the "account" objectclass. Although it is a structural objectclass, FDS allows you to add it to an existing entry. However, this is not standard LDAP. A better way would be to create a new AUXILIARY objectclass (e.g. hostUser) and have the "host" attribute as an allowed attribute (MAY) of that objectclass. Then add the "hostUser" objectclass to your users.
Aaron, On Fedora, put this into /etc/pam.d/system-auth: auth required /lib/security/pam_listfile.so onerr=fail item=group sense=allow file=/etc/security/login_limit_list.conf In the login_limit_list.conf file list all the groups that are allowed to login.