根服务器解析怎么这么慢 16636 ms

[holinhot]

[root@localhost ~]# dig kk.net +trace

; <<>> DiG 9.8.2rc1-RedHat-9.8.2-0.37.rc1.el6_7.7 <<>> kk.net +trace
;; global options: +cmd
. 199024 IN NS f.root-servers.net.
. 199024 IN NS d.root-servers.net.
. 199024 IN NS l.root-servers.net.
. 199024 IN NS a.root-servers.net.
. 199024 IN NS g.root-servers.net.
. 199024 IN NS e.root-servers.net.
. 199024 IN NS j.root-servers.net.
. 199024 IN NS k.root-servers.net.
. 199024 IN NS h.root-servers.net.
. 199024 IN NS m.root-servers.net.
. 199024 IN NS i.root-servers.net.
. 199024 IN NS c.root-servers.net.
. 199024 IN NS b.root-servers.net.
;; Received 228 bytes from 114.114.114.114#53(114.114.114.114) in 324 ms

net. 172800 IN NS a.gtld-servers.net.
net. 172800 IN NS b.gtld-servers.net.
net. 172800 IN NS c.gtld-servers.net.
net. 172800 IN NS d.gtld-servers.net.
net. 172800 IN NS e.gtld-servers.net.
net. 172800 IN NS f.gtld-servers.net.
net. 172800 IN NS g.gtld-servers.net.
net. 172800 IN NS h.gtld-servers.net.
net. 172800 IN NS i.gtld-servers.net.
net. 172800 IN NS j.gtld-servers.net.
net. 172800 IN NS k.gtld-servers.net.
net. 172800 IN NS l.gtld-servers.net.
net. 172800 IN NS m.gtld-servers.net.
;; Received 510 bytes from 198.97.190.53#53(198.97.190.53) in 535 ms

kk.net. 172800 IN NS ns1.kk.net.
kk.net. 172800 IN NS ns2.kk.net.
kk.net. 172800 IN NS ns3.kk.net.
kk.net. 172800 IN NS ns4.kk.net.
;; Received 161 bytes from 192.55.83.30#53(192.55.83.30) in 16636 ms

kk.net. 300 IN A 103.211.113.254
kk.net. 172800 IN NS ns1.kk.net.
kk.net. 172800 IN NS ns2.kk.net.
kk.net. 172800 IN NS ns3.kk.net.
kk.net. 172800 IN NS ns4.kk.net.
;; Received 177 bytes from 205.251.198.214#53(205.251.198.214) in 262 ms

[root@localhost ~]#

[holinhot]

[root@localhost ~]# ping 192.55.83.30
PING 192.55.83.30 (192.55.83.30) 56(84) bytes of data.
64 bytes from 192.55.83.30: icmp_seq=2 ttl=50 time=436 ms
64 bytes from 192.55.83.30: icmp_seq=3 ttl=50 time=436 ms
64 bytes from 192.55.83.30: icmp_seq=4 ttl=50 time=435 ms
64 bytes from 192.55.83.30: icmp_seq=5 ttl=50 time=425 ms
64 bytes from 192.55.83.30: icmp_seq=6 ttl=50 time=435 ms
64 bytes from 192.55.83.30: icmp_seq=7 ttl=50 time=436 ms
64 bytes from 192.55.83.30: icmp_seq=8 ttl=50 time=436 ms
64 bytes from 192.55.83.30: icmp_seq=10 ttl=50 time=432 ms
64 bytes from 192.55.83.30: icmp_seq=11 ttl=50 time=423 ms
64 bytes from 192.55.83.30: icmp_seq=12 ttl=50 time=436 ms
64 bytes from 192.55.83.30: icmp_seq=13 ttl=50 time=436 ms
64 bytes from 192.55.83.30: icmp_seq=14 ttl=50 time=436 ms
64 bytes from 192.55.83.30: icmp_seq=15 ttl=50 time=436 ms
^C
--- 192.55.83.30 ping statistics ---
16 packets transmitted, 13 received, 18% packet loss, time 15174ms
rtt min/avg/max/mdev = 423.336/434.146/436.523/4.225 ms