Is there any way to find my mac address so that I can assign IP to my systems?
on your router dhcp table
From a Command Prompt, PING the IP, get a response, then run ARP -A in Command Prompt. That should give you the MAC (Physical Address).
Once you find the IP address of the machine use putty to ssh into the miner. the login and password are miner. from there type sudo nano /etc/network/interfaces then change dhcp to static. hit enter to go down a line, type address x.x.x.x whatever your ip you want to give it is. Go down a line again,
type netmask 255.255.255.0 or whatever your subnetmask is. Go down a line again,
type gateway 192.168.1.1 or whatever your gateway is. Go down one more line again,
Type dns-nameservers 8.8.8.8 this will use google as the dns.
Now hit CTRL + O and hit enter to write out the file and then hit CTRL + X to exit
Type sudo reboot and hit enter to reboot the rig for the changes to take affect.