Hash root's Password in RHEL and CentOS Kickstart Profiles

Published February 3, 2014 • Updated October 23, 2015


root’s password can easily be set in RHEL and CentOS Kickstart Profiles with the following command:

rootpw "password here"

However, anyone using the Kickstart Profile will see the root password in plain text.

It is possible to hash root’s password in the Kickstart Profile with the following command:

rootpw --iscrypted password_hash

But, how do you generate the password hash? Depending on your authconfig configuration, there are several different ways to do this.

Continue reading...

Authenticate RHEL 5 and 6 SSSD Using Kerberos and LDAP Against Active Directory on Windows Server 2008 R2

Published January 30, 2014 • Updated May 8, 2017


SSSD brought several authentication and authorization protocols under one roof.

Despite that, it can be tricky to configure RHEL 5 and 6 systems to authenticate with SSSD using Kerberos and LDAP against an Active Directory server. This post details the steps I took to set everything up.

Continue reading...

Red Hat Directory Server 9 Exception in thread main No fonts found

Published May 14, 2013 • Updated January 21, 2019


If you have just installed Red Hat Directory Server 9 on RHEL 6 with only the @Base package group, the java-1.6.0-openjdk package, and the redhat-ds package, and you are trying to open the Red Hat Identity Management Console through a forwarded SSH X session by running redhat-idm-console -a http://localhost:9830, you may encounter a Java stack trace.

Continue reading...