Initial R1 Router Setup
Should be able to do this by heart!
enable configure terminal # Configure the hostname and domain name hostname r1 ip domain name tas.lab # configure Interface F0/0 with 10.0.0.1 interface fastethernet0/0 ip address 10.0.0.1 255.255.255.0 no shutdown # enable DNS lookups ip domain lookup ip name-server 10.0.0.1 # configure as a DNS server ip dns server # add itself and the bastion ip host r1.tas.lab 10.0.0.1 ip host pi3b.tas.lab 10.0.0.10 # configure for SSH