Add example hostnames to REDAME

* Extend the IPA bootstrappnig text a bit and use hostnames for the
example.

README.md

@@ -82,7 +82,7 @@ Be aware that the development branches here are not save and the owner might for
 # Run as admin 
 ## Bootstraping
 * Add your SSH-key to the host `ssh-copy-id lasXXX.las.kit.edu`
-* Do the steps described for the self-setup
+* Install ansible dependencies: `dnf install python2-dnf libselinux-python`
 * Run `ansible-playbook -K --vault-id @prompt sites.yml` probably with the option `-l lasXXX.las.kit.edu`
 
 ## Edit encrypted files
@@ -92,12 +92,15 @@ Be aware that the development branches here are not save and the owner might for
 The first one is of cause the preferred one, because there is no rist to add a unencrypted file to the repo.
 
 ## Bootstrap IPA hosts
-* Get a Kerberos ticket (``kinit admin@LAS.KIT.EDU``)
+In this example the client to bootstrap may be `las112` and the installation takes place from the server `las126`.
+The prompts `#` show that you are working at root.
+* Add your (root's) SSH-key to the host `las126# ssh-copy-id lasXXX.las.kit.edu`
+* Install ansible dependencies on the client: `las112# dnf install python2-dnf libselinux-python`
+* Get a Kerberos ticket (``las126# kinit -f admin@LAS.KIT.EDU``)
 * For the host with the hostname `lasXXX.las.kit.edu` do the following
 * edit a file ``host_vars/lasXXX.las.kit.edu``
-* run the command:
 ```
-ansible -l lasXXX.las.kit.edu add_ipa_host.yml -k --vault-id @prompt
+las126# ansible -l lasXXX.las.kit.edu add_ipa_host.yml -k --vault-id @prompt
 ```
 and provide the root password for the new host.