Add Networking/Linux/Modifying IP Address of Server.md

Networking/Linux/Modifying IP Address of Server.md

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+**Purpose**: This is a scaffold document outlining the high level of changing an IP address of a server in either Debian or RHEL based operating systems.
+
+=== "Ubuntu / Debian"
+
+    ``` sh
+    # Edit Netplan File
+    nano /etc/netplan/<name-of-netplan-file>
+    # <edit existing networking> --> <save file>
+
+    # Apply Netplan Changes
+    netplan apply
+    ```
+        
+=== "Rocky / Fedora / RHEL"
+
+    ``` sh
+    # Modify the Existing Connection via nmcli
+    nmcli connection modify ens18-connection \
+    ipv4.addresses 192.168.3.13/24 \
+    ipv4.gateway 192.168.3.1 \
+    ipv4.dns "192.168.3.25,192.168.3.26" \
+    ipv4.method manual
+
+    # Bring the Connection Online
+    sudo nmcli connection down ens18-connection
+    sudo nmcli connection up ens18-connection
+    ```
+