diff --git a/intro/modules/ROOT/pages/exer.adoc b/intro/modules/ROOT/pages/exer.adoc
index fd488fa..7adc47f 100644
--- a/intro/modules/ROOT/pages/exer.adoc
+++ b/intro/modules/ROOT/pages/exer.adoc
@@ -46,6 +46,25 @@ NOTE:  try to find the differences between them!
 ssh docker@[IP]
 ----
 
+
+== SSH run command
+
+Run command using the following syntax:
+
+[source,bash]
+----
+## user syntax ##
+ssh -t docker@192.168.128.3 'ip a'
+
+## sudo syntax ##
+ssh -t docker@192.168.128.3 'echo docker | sudo -S cat /etc/passwd'
+# ^^^^^ USER ^^^ IP ^^^^^^^ sudo password ^^^^^^^^   COMMAND 
+
+## su syntax ##
+ssh docker@nas01 su -c "/path/to/command1 arg1 arg2"
+----
+
+
 == SSH password
 
 [source,bash]
diff --git a/intro/modules/ROOT/pages/index.adoc b/intro/modules/ROOT/pages/index.adoc
index b3d5880..421e10d 100644
--- a/intro/modules/ROOT/pages/index.adoc
+++ b/intro/modules/ROOT/pages/index.adoc
@@ -9,7 +9,7 @@ This tutorial demonstrates some common nmap port scanning scenarios and explains
 
 [source,bash]
 ----
-# ifconfig
+# ifconfig ή ip a
 
 eth0:   flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
         inet 172.21.0.2  netmask 255.255.0.0  broadcast 172.21.255.255