Host name lookup failure

liu783129

FreeBSD系统，Sendmail 服务。日志显示不能解析主机，单nslookup和ping都没有问题。请问这怎么解决？
系统日志如下：
Mar 20 17:08:23 nothing sm-mta[25808]: k2K89Uei025602: to=<mountain@XXX.com.cn>, ctladdr=<nobody@nothing.bsd.com> (65534/65534), delay=00:52:53, xdelay=00:01:00, mailer=esmtp, pri=211231, relay=mail.XXX.com.cn., dsn=4.0.0, stat=Deferred: Name server: mail.XXX.com.cn.: host name lookup failure
Mar 20 17:09:23 nothing sm-mta[25808]: k2K7Kl4d025409: to=<mountain@XXX.com.cn>, ctladdr=<nobody@nothing.bsd.com> (65534/65534), delay=01:42:36, xdelay=00:01:00, mailer=esmtp, pri=481238, relay=mail.XXX.com.cn., dsn=4.0.0, stat=Deferred: Name server: mail.XXX.com.cn.: host name lookup failure
Mar 20 17:09:23 nothing sm-mta[25808]: k2K6odoY025329: to=<silent@XXX.com.cn>, ctladdr=<nobody@nothing.bsd.com> (65534/65534), delay=02:12:44, xdelay=00:00:00, mailer=esmtp, pri=571009, relay=mail.XXX.com.cn., dsn=4.0.0, stat=Deferred: Name server: mail.XXX.com.cn.: host name lookup failure
Mar 20 17:09:23 nothing sm-mta[25808]: k2K6M5cP025276: to=<silent@XXX.com.cn>, ctladdr=<nobody@nothing.bsd.com> (65534/65534), delay=02:41:17, xdelay=00:00:00, mailer=esmtp, pri=661228, relay=mail.XXX.com.cn., dsn=4.0.0, stat=Deferred: Name server: mail.XXX.com.cn.: host name lookup failure
Mar 20 17:09:23 nothing sm-mta[25808]: k2K3YUpk024214: to=<yagami@XXX.com.cn>, ctladdr=<nobody@nothing.bsd.com> (65534/65534), delay=05:28:52, xdelay=00:00:00, mailer=esmtp, pri=1111227, relay=mail.XXX.com.cn., dsn=4.0.0, stat=Deferred: Name server: mail.XXX.com.cn.: host name lookup failure
Mar 20 17:09:23 nothing sm-mta[25808]: k2K3ae8u024220: to=<yunleung@XXX.com.cn>, ctladdr=<nobody@nothing.bsd.com> (65534/65534), delay=05:26:42, xdelay=00:00:00, mailer=esmtp, pri=1111237, relay=mail.XXX.com.cn., dsn=4.0.0, stat=Deferred: Name server: mail.XXX.com.cn.: host name lookup failure


nothing# nslookup mail.XXX.com.cn
Server:         192.168..
Address:        192.168..
Non-authoritative answer:
Name:   mail.XXX.com.cn
Address: 192.XXX.XXX.XXX

nothing# ping mail.XXX.com.cn
PING mail.XXX.com.cn (192.XXX.XXX.XXX): 56 data bytes
64 bytes from 192.XXX.XXX.XXX: icmp_seq=0 ttl=64 time=0.227 ms
64 bytes from 192.XXX.XXX.XXX: icmp_seq=1 ttl=64 time=0.160 ms
64 bytes from 192.XXX.XXX.XXX: icmp_seq=2 ttl=64 time=0.139 ms
^C
--- mail.XXX.com.cn ping statistics ---
3 packets transmitted, 3 packets received, 0% packet loss
round-trip min/avg/max/stddev = 0.139/0.175/0.227/0.038 ms

[ 本帖最后由 liu783129 于 2006-3-20 17:33 编辑 ]

kenduest

原帖由 liu783129 于 2006-3-20 17:31 发表
FreeBSD系统，Sendmail 服务。日志显示不能解析主机，单nslookup和ping都没有问题。请问这怎么解决？
系统日志如下：
Mar 20 17:08:23 nothing sm-mta[25808]: k2K89Uei025602: to=<[email]mountain@XXX.com ...

mx 紀錄為何？

nslookup -type=mx XXX.com.cn

是查詢不到，還是查詢失敗？

==

liu783129

可以查到
nothing# nslookup -type=mx XXX.com.cn
Server:         192.168.0.1
Address:        192.168.0.1#53

Non-authoritative answer:
XXX.com.cn        mail exchanger = 20 mail.XXX.com.cn.

Authoritative answers can be found from:
XXX.com.cn        nameserver = ns.xinnet.cn.
X.com.cn        nameserver = ns.xinnetdns.com.
mail.XXX.com.cn   internet address = 192.168..
ns.xinnet.cn    internet address = 210.51.171.209
ns.xinnetdns.com        internet address = 210.51.170.66

nothing#