Update 08-Cluster-Networking.md

ducna96 · Aug 30, 2020 · e3feccc · e3feccc
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diff --git a/docs/09-Networking/08-Cluster-Networking.md b/docs/09-Networking/08-Cluster-Networking.md
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 # Pre-requisite Cluster Networking
 
-  Take me to [Lecture](https://kodekloud.com/courses/539883/lectures/9808288)
+  - Take me to [Lecture](https://kodekloud.com/courses/539883/lectures/9808288)
+
+
+## IP and Hostname
+
+- To view the hostname
+
+```
+$ hostname 
+```
+
+- To view the IP addr of the system
+
+```
+$ ip a
+```
+
+
+## Set the hostname
+
+```
+$ hostnamectl set-hostname <host-name>
+
+$ exec bash
+```
+
+## View the Listening Ports of the system
+
+```
+$ netstat -nltp
+```
+
+
+
+#### References Docs
+
+- https://kubernetes.io/docs/setup/production-environment/tools/kubeadm/install-kubeadm/#check-required-ports