Installing OAS on mobile laptop

Once in a while I install OAS (Oracle Analytics Server) on my laptop. I do it for testing purposes mostly... I don't want anyone but myself to connect to this OAS. Sort of rich man's OA Desktop.

 First of all, don't do it. Even if you want OAS on a laptop, you would better use a VM or Docker. This type of installation is not supported and usually is problematic.

This post is for myself, so I will stop reinventing the wheel each time I do it...

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Problem: 

• OAS is a server that requires a static IP. 
• My laptop changes the IPs each time I move from one network to another. 
• During the installation the IP is hard coded in some of the config files.

Work around: 

• Create a MS loopback adapter with a static IP. Example from Oracle DB 21c documentation is here.
  
• Set that IP as Ethernet network on the laptop.
• Before OAS installation turn of Wi-Fi or any other network, so the installation is forced to use the loopback IP.

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Once done remember to stop and start OAS on the same network.