[root(shaojie04)@bjqcvm74-116-150 ~]# tcpdump -i any port 53
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on any, link-type LINUX_SLL (Linux cooked), capture size 65535 bytes
15:40:01.482448 IP bjqcvm74-116-150.58os.org.10004 > 10.10.10.10.domain: 6484+ [1au] A? crmfang.rdb.58dns.org. (50)
15:40:07.582330 IP bjqcvm74-116-150.58os.org.10004 > 10.10.10.10.domain: 33469+ [1au] A? crmfang.rdb.58dns.org. (50)
15:40:13.682316 IP bjqcvm74-116-150.58os.org.10004 > 10.10.10.10.domain: 25049+ [1au] A? crmfang.rdb.58dns.org. (50)
15:40:25.881926 IP bjqcvm74-116-150.58os.org.10004 > 10.10.10.10.domain: 10810+ [1au] A? crmfang.rdb.58dns.org. (50)
15:40:31.982113 IP bjqcvm74-116-150.58os.org.10004 > 10.10.10.10.domain: 19628+ [1au] A? crmfang.rdb.58dns.org. (50)
15:40:38.082652 IP bjqcvm74-116-150.58os.org.10004 > 10.10.10.10.domain: 23958+ [1au] A? crmfang.rdb.58dns.org. (50)
15:40:44.182443 IP bjqcvm74-116-150.58os.org.10004 > 10.10.10.10.domain: 55027+ [1au] A? crmfang.rdb.58dns.org. (50)
15:40:50.282547 IP bjqcvm74-116-150.58os.org.10004 > 10.10.10.10.domain: 64082+ [1au] A? crmfang.rdb.58dns.org. (50)
15:40:56.382116 IP bjqcvm74-116-150.58os.org.10004 > 10.10.10.10.domain: 48327+ [1au] A? crmfang.rdb.58dns.org. (50)
15:41:02.482656 IP bjqcvm74-116-150.58os.org.10004 > 10.10.10.10.domain: 44230+ [1au] A? crmfang.rdb.58dns.org. (50)
15:41:04.186328 IP bjqcvm74-116-150.58os.org.28718 > 10.10.10.10.domain: 31922+ A? configcenter.oneagent.58dns.org. (49)
15:41:04.186360 IP bjqcvm74-116-150.58os.org.28718 > 10.10.10.10.domain: 20557+ AAAA? configcenter.oneagent.58dns.org. (49)
15:41:04.187868 IP 10.10.10.10.domain > bjqcvm74-116-150.58os.org.28718: 31922* 2/0/0 CNAME fe-in.op.58dns.org., A 10.33.0.39 (97)
15:41:04.187905 IP 10.10.10.10.domain > bjqcvm74-116-150.58os.org.28718: 20557* 1/1/0 CNAME fe-in.op.58dns.org. (135)
15:41:08.582447 IP bjqcvm74-116-150.58os.org.10004 > 10.10.10.10.domain: 29928+ [1au] A? crmfang.rdb.58dns.org. (50)
^C
31 packets captured
107 packets received by filter
45 packets dropped by kernel
logs:Unable to resolve crmfang.rdb.58dns.orgjava.net.UnknownHostException: failed to resolve 'crmfang.rdb.58dns.org'
Caused by: io.netty.resolver.dns.DnsNameResolverTimeoutException: [/10.10.10.10:53] query via UDP timed out after 1000 milliseconds (no stack trace available)
[root(shaojie04)@bjqcvm74-116-150 ~]# tcpdump -i any port 53
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on any, link-type LINUX_SLL (Linux cooked), capture size 65535 bytes
15:40:01.482448 IP bjqcvm74-116-150.58os.org.10004 > 10.10.10.10.domain: 6484+ [1au] A? crmfang.rdb.58dns.org. (50)
15:40:07.582330 IP bjqcvm74-116-150.58os.org.10004 > 10.10.10.10.domain: 33469+ [1au] A? crmfang.rdb.58dns.org. (50)
15:40:13.682316 IP bjqcvm74-116-150.58os.org.10004 > 10.10.10.10.domain: 25049+ [1au] A? crmfang.rdb.58dns.org. (50)
15:40:25.881926 IP bjqcvm74-116-150.58os.org.10004 > 10.10.10.10.domain: 10810+ [1au] A? crmfang.rdb.58dns.org. (50)
15:40:31.982113 IP bjqcvm74-116-150.58os.org.10004 > 10.10.10.10.domain: 19628+ [1au] A? crmfang.rdb.58dns.org. (50)
15:40:38.082652 IP bjqcvm74-116-150.58os.org.10004 > 10.10.10.10.domain: 23958+ [1au] A? crmfang.rdb.58dns.org. (50)
15:40:44.182443 IP bjqcvm74-116-150.58os.org.10004 > 10.10.10.10.domain: 55027+ [1au] A? crmfang.rdb.58dns.org. (50)
15:40:50.282547 IP bjqcvm74-116-150.58os.org.10004 > 10.10.10.10.domain: 64082+ [1au] A? crmfang.rdb.58dns.org. (50)
15:40:56.382116 IP bjqcvm74-116-150.58os.org.10004 > 10.10.10.10.domain: 48327+ [1au] A? crmfang.rdb.58dns.org. (50)
15:41:02.482656 IP bjqcvm74-116-150.58os.org.10004 > 10.10.10.10.domain: 44230+ [1au] A? crmfang.rdb.58dns.org. (50)
15:41:04.186328 IP bjqcvm74-116-150.58os.org.28718 > 10.10.10.10.domain: 31922+ A? configcenter.oneagent.58dns.org. (49)
15:41:04.186360 IP bjqcvm74-116-150.58os.org.28718 > 10.10.10.10.domain: 20557+ AAAA? configcenter.oneagent.58dns.org. (49)
15:41:04.187868 IP 10.10.10.10.domain > bjqcvm74-116-150.58os.org.28718: 31922* 2/0/0 CNAME fe-in.op.58dns.org., A 10.33.0.39 (97)
15:41:04.187905 IP 10.10.10.10.domain > bjqcvm74-116-150.58os.org.28718: 20557* 1/1/0 CNAME fe-in.op.58dns.org. (135)
15:41:08.582447 IP bjqcvm74-116-150.58os.org.10004 > 10.10.10.10.domain: 29928+ [1au] A? crmfang.rdb.58dns.org. (50)
^C
31 packets captured
107 packets received by filter
45 packets dropped by kernel
logs:Unable to resolve crmfang.rdb.58dns.orgjava.net.UnknownHostException: failed to resolve 'crmfang.rdb.58dns.org'
Caused by: io.netty.resolver.dns.DnsNameResolverTimeoutException: [/10.10.10.10:53] query via UDP timed out after 1000 milliseconds (no stack trace available)