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FreeIPA Installation

FreeIPA is a solution for managing users, groups, services, hosts and services. Its functionality is almost identical to Microsoft's Active Directory. Inside FreeIPA are common software projects working together to build the the whole solution. The applications I am talking about are
389-Directory-Server
MIT-Kerberos
BIND
Dogtag
and the Apache Webserver.

 Following, I will explain the installation of the master-IPA server.

 First we have to edit the hosts file (/etc/hosts) and fill in our IP, FQDN and Short-FQDN.
 [root@ipa01 ~]$ echo "$(hostname -I | awk '{print $1}') $(hostname) $(hostname -s)" >> /etc/host
The output should look like the following:
 172.31.10.250 ipa01.archyslife.lan ipa01
Next up we update the machine to be on the latest software and install IPA-Server and IPA-DNS.
 [root@ipa01 ~]$ yum -y update && yum -y install ipa-server ipa-server-dns epel-release
We can start the installation script by running the following command 
 [root@ipa01 ~]$ ipa-server-install
Output: 
 The log file for this installation can be found in /var/log/ipaserver-install.log  
 ==============================================================================  
 This program will set up the IPA Server.  
 This includes:  
  * Configure a stand-alone CA (dogtag) for certificate management  
  * Configure the Network Time Daemon (ntpd)  
  * Create and configure an instance of Directory Server  
  * Create and configure a Kerberos Key Distribution Center (KDC)  
  * Configure Apache (httpd)  
  * Configure DNS (bind)  
 To accept the default shown in brackets, press the Enter key.  
 WARNING: conflicting time&date synchronization service 'chronyd' will be disabled  
 in favor of ntpd  
 Existing BIND configuration detected, overwrite? [no]: yes  
 Enter the fully qualified domain name of the computer  
 on which you're setting up server software. Using the form  
 <hostname>.<domainname>  
 Example: master.example.com.  
 Server host name [ipa7.example.com]: ipa01.archyslife.lan  
 Warning: skipping DNS resolution of host ipa7.example.com  
 The domain name has been determined based on the host name.  
 Please confirm the domain name [example.com]: archyslife.lan  
 The kerberos protocol requires a Realm name to be defined.  
 This is typically the domain name converted to uppercase.  
 Please provide a realm name [EXAMPLE.COM]: ARCHYSLIFE.LAN  
 Certain directory server operations require an administrative user.  
 This user is referred to as the Directory Manager and has full access  
 to the Directory for system management tasks and will be added to the  
 instance of directory server created for IPA.  
 The password must be at least 8 characters long.  
 Directory Manager password: secretmanager  
 Password (confirm): secretmanager  
 The IPA server requires an administrative user, named 'admin'.  
 This user is a regular system account used for IPA server administration.  
 IPA admin password: secretadmin  
 Password (confirm): secretadmin  
 Do you want to configure DNS forwarders? [yes]: yes  
 Enter the IP address of DNS forwarder to use, or press Enter to finish.  
 Enter IP address for a DNS forwarder: 208.67.222.222  
 DNS forwarder 208.67.222.222 added  
 Enter IP address for a DNS forwarder: 208.67.220.220  
 DNS forwarder 208.67.220.220 added  
 Enter IP address for a DNS forwarder: <enter>  
 Do you want to configure the reverse zone? [yes]: yes  
 Please specify the reverse zone name [10.31.172.in-addr.arpa.]: 10.31.172.in-addr.arpa  
 Using reverse zone 10.31.172.in-addr.arpa.  
 The IPA Master Server will be configured with:  
 Hostname: ipa01.archyslife.lan  
 IP address: 172.31.10.250  
 Domain name: archyslife.lan  
 Realm name: archyslife.lan  
 BIND DNS server will be configured to serve IPA domain with:  
 Forwarders: 208.67.222.222, 208.67.220.220  
 Reverse zone: 10.31.172.in-addr.arpa.  
 Continue to configure the system with these values? [no]: yes  
 The following operations may take some minutes to complete.  
 Please wait until the prompt is returned.
This procedure will take about 5-15 minutes depending on your connection speed and hardware.
If the setup is done, it should output something like the following, telling us to configure our firewall.
  Setup complete   
  Next steps:   
   1. You must make sure these network ports are open:   
    TCP Ports:   
    * 80, 443: HTTP/HTTPS   
    * 389, 636: LDAP/LDAPS   
    * 88, 464: kerberos   
    * 53: bind   
    UDP Ports:   
    * 88, 464: kerberos   
    * 53: bind   
    * 123: ntp   
   2. You can now obtain a kerberos ticket using the command: 'kinit admin'   
    This ticket will allow you to use the IPA tools (e.g., ipa user-add)   
    and the web user interface.   
  Be sure to back up the CA certificate stored in /root/cacert.p12   
  This file is required to create replicas. The password for this   
  file is the Directory Manager password
Which we do with the following commands
 [root@ipa01 ~]$ firewall-cmd --add-port={80/tcp,443/tcp,389/tcp,636/tcp,88/tcp,464/tcp,53/tcp,88/udp,464/udp,53/udp,123/udp} --permanent    
 [root@ipa01 ~]$ firewall-cmd --reload
The IPA-Serversite is configured properly. What we have to do now, in order to access the webinterface is put the IPA-Server as the 1st DNS-Server of our client. 
Here we can sign in using the credentials we provided during the installation.

More information about FreeIPA can be found at the project's homepage.

FreeIPA Homepage: http://www.freeipa.org/page/Main_Page

Feel free to comment and / or suggest a topic.
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