no IP address found for 10.0.0.0.1 stdin:2: could not parse host specification no IP address found for :80 stdin:3: could not parse host specification no IP address found for 2000:0:0:0:0:0:0:0:0:1 stdin:4: could not parse host specification no IP address found for 256.0.0.1 stdin:5: could not parse host specification no IP address found for 10.0.0.0:network stdin:6: could not parse host specification