>perl -e "use NET::Ping; $p = Net::Ping->new();" Can't get tcp protocol by name at -e line 1 >perl -e "use NET::POP3; $pop = Net::POP3->new('192.67.198.62'); $pop->login('me');" Can't call method "login" on an undefined value at -e line 1. >ping 192.67.198.62 Pinging 192.67.198.62 with 32 bytes of data: Reply from 192.67.198.62: bytes=32 time=80ms TTL=245 Reply from 192.67.198.62: bytes=32 time=60ms TTL=245 Reply from 192.67.198.62: bytes=32 time=130ms TTL=245 Reply from 192.67.198.62: bytes=32 time=60ms TTL=245 Ping statistics for 192.67.198.62: Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 60ms, Maximum = 130ms, Average = 82ms