Where to look for clues for debugging

Issue:
Trouble debugging where to make improvements.

Setup:
Custom PCB with Microchip RN2903 on it. A RAK2247 Gateway.

Server:
An Ubuntu laptop running ChirpStack

Details:
I am new to the Lora/LoraWAN/ChirpStack/etc world and am having issues debugging what appears to be a bad link. I thought it would be good to step back and look at each step in the process so I can narrow things down, as opposed to just looking at things on ChirpStack and making guesses.

So my question sort of is, where can I find usable logs on the 2247 so I can start to sift through things? It seems like a good starting point as I should be able to look at the link between it and a node, and it and the server.

Thanks!

Dear garengllc,

check log:tail -f /var/log/syslog
Log position:cd /var/log/

Best regards!