Update prak/pr01/README.md

prak/pr01/README.md

@@ -6,7 +6,7 @@
 
 #### "Geben Sie den Inhalt Ihrer Konfiguratonsdatei /etc/netplan/00-installer-config.yaml an und interpretieren Sie diesen?"
 
-My netplan configuration file is as follows:
+My netplan configuration file (under `/etc/netplan/00-installer-config.yaml`)is as follows:
 
 ```
 network:
@@ -21,13 +21,13 @@ network:
   version: 2
 ```
 
-We can see that there is two interfaces: 'ens18' which is configured with IPv6 address and its gateway (used for internet access), and 'ens19' which has DHCP for IPv4 enabled, and allows connectivity inside H-BRS Netzlab evironment
+We can see that there is two interfaces: `ens18` which is configured with IPv6 address and its gateway (used for internet access), and `ens19` which has DHCP for IPv4 enabled, and allows connectivity inside H-BRS Netzlab evironment
 
 ### Exercise (3c)
 
 #### "Testen Sie den ssh-Zugriff über Public-Key-Authentifizierung. Wie haben Sie das gemacht?"
 
-Authentication by Public-Key is enabled by default in Ubuntu 22.04 (even on some previous versions). However if it is not working, we should edit the ssh config file in '/etc/ssh/sshd_config' and choosing "yes" for 'PubkeyAuthentication' option
+Authentication by Public-Key is enabled by default in Ubuntu 22.04 (even on some previous versions). However if it is not working, we should edit the ssh config file in `/etc/ssh/sshd_config` and choosing "yes" for `PubkeyAuthentication` option
 
 ```
 #Port 22
@@ -35,15 +35,12 @@ Authentication by Public-Key is enabled by default in Ubuntu 22.04 (even on some
 #ListenAddress 0.0.0.0
 #ListenAddress ::
 
-.
-.
 .
 
-PubkeyAuthentication yes
-.
-.
+PubkeyAuthentication yes <---
 .
 
+
 # Expect .ssh/authorized_keys2 to be disregarded by default in future.
 #AuthorizedKeysFile     .ssh/authorized_keys .ssh/authorized_keys2
 ```
@@ -63,9 +60,9 @@ UsePAM no
 
 ### Exercise (3e)
 
-####Testen Sie, dass die Passwortauthentifizierung tatsaechlich abgeschaltet ist. Welche Fehlermeldung erhalten Sie bei einem Login-Versuch mit Passwort?
+#### Testen Sie, dass die Passwortauthentifizierung tatsaechlich abgeschaltet ist. Welche Fehlermeldung erhalten Sie bei einem Login-Versuch mit Passwort?
 
-There is an error regarding Public Key
+There is an error regarding Public Key:
 
 ```
 ssh azurit2s@tazc.de