Storing logs on the SD card

I was hoping to use a vocore2 with MicroSD to create a hotspot, and log the MAC addresses that connect to it. Is there a way to store the MAC/System Logs on the MicroSD?

See local logging section from Logging Messages doc. Should be able to use an OS path that is on the SD card.

For MAC addresses, this FAQ on connected clients may help. Just redirect MAC address output to a file on SD Card. Or, use a 'logger' command to write to the main log file.