ping keys.gnupg.net
PING pool.sks-keyservers.net (176.9.146.20) 56(84) bytes of data.
64 bytes from oinn.alderwick.co.uk (176.9.146.20): icmp_seq=1 ttl=51 time=229 ms
64 bytes from oinn.alderwick.co.uk (176.9.146.20): icmp_seq=2 ttl=51 time=227 ms
64 bytes from oinn.alderwick.co.uk (176.9.146.20): icmp_seq=3 ttl=51 time=225 ms
64 bytes from oinn.alderwick.co.uk (176.9.146.20): icmp_seq=4 ttl=51 time=225 ms
64 bytes from oinn.alderwick.co.uk (176.9.146.20): icmp_seq=5 ttl=51 time=225 ms
whois keys.gnupg.net
No match for "KEYS.GNUPG.NET".
它没有在域名数据库里面？