SSSD/Kerberos/LDAP Authentication: Difference between revisions
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#Gather the list of KDCs for the realm. | #Gather the list of KDCs for the realm. | ||
##<tt>'''# nslookup -type=SRV _kerberos._tcp.<domain in lowercase>'''</tt> | ##<tt>'''# nslookup -type=SRV _kerberos._tcp.<domain in lowercase>'''</tt> | ||
Output of previous command: | |||
<pre> Server: <ip address> | |||
Address: <ip address>#53 | |||
_kerberos._tcp.<domain in lowercase> service = 0 100 88 dc1.<domain in lowercase>. | |||
_kerberos._tcp.<domain in lowercase> service = 0 100 88 dc2.<domain in lowercase>. | |||
_kerberos._tcp.<domain in lowercase> service = 0 100 88 dc3.<domain in lowercase>. | |||
_kerberos._tcp.<domain in lowercase> service = 0 100 88 dc4.<domain in lowercase>. | |||
</pre> | |||
#Create a backup of the /etc/krb5.conf file. | |||
##<tt>'''# cp -p /etc/krb5.conf{,.bak}'''</tt> | |||
##<tt>'''Modify the /etc/krb5.conf file as follows, changes are highlighted in yellow.'''</tt> |
Revision as of 18:24, 29 June 2016
Install Required Packages
- RHEL6: Install the following packages.
- # yum install sssd krb5-workstation samba-common authconfig oddjob oddjob-mkhomedir openldap-clients ipa-client sssd-common krb5-devel
- RHEL7: Install the following packages
- # yum install sssd krb5-workstation samba-common authconfig oddjob oddjob-mkhomedir openldap-clients sssd-libwbclient sssd-tools ipa-client sssd-common krb5-devel
Configure Kerberos
- Gather the list of KDCs for the realm.
- # nslookup -type=SRV _kerberos._tcp.<domain in lowercase>
Output of previous command:
Server: <ip address> Address: <ip address>#53 _kerberos._tcp.<domain in lowercase> service = 0 100 88 dc1.<domain in lowercase>. _kerberos._tcp.<domain in lowercase> service = 0 100 88 dc2.<domain in lowercase>. _kerberos._tcp.<domain in lowercase> service = 0 100 88 dc3.<domain in lowercase>. _kerberos._tcp.<domain in lowercase> service = 0 100 88 dc4.<domain in lowercase>.
- Create a backup of the /etc/krb5.conf file.
- # cp -p /etc/krb5.conf{,.bak}
- Modify the /etc/krb5.conf file as follows, changes are highlighted in yellow.