系统里有很多这样的日志，是什么意思？

ljiayu-nj

Jun 22 17:06:19 ns postfix/smtpd[5046]: gethostby*.getanswer: asked for "169.127
.133.219.broad.sz.gd.dynamic.163data.com.cn", got "A.redirect.local"
Jun 22 17:06:19 ns last message repeated 3 times
Jun 22 17:08:44 ns postfix/smtpd[5046]: gethostby*.getanswer: asked for "37.135.
34.59.broad.mm.gd.dynamic.163data.com.cn", got "A.redirect.local"
[root@ns ljy]# tail /var/log/messages
Jun 22 16:56:24 ns postfix/smtpd[3808]: gethostby*.getanswer: asked for "253.98.
39.59.broad.yj.gd.dynamic.163data.com.cn", got "A.redirect.local"
Jun 22 16:56:24 ns last message repeated 3 times
Jun 22 17:00:12 ns postfix/smtpd[5063]: gethostby*.getanswer: asked for "157.80.
35.121.broad.sz.gd.dynamic.163data.com.cn", got "A.redirect.local"
Jun 22 17:00:12 ns last message repeated 3 times
Jun 22 17:00:13 ns postfix/smtpd[5046]: gethostby*.getanswer: asked for "146.157
.60.58.broad.sz.gd.dynamic.163data.com.cn", got "A.redirect.local"
Jun 22 17:00:13 ns last message repeated 3 times
Jun 22 17:01:59 ns named[3879]: lame server resolving 'nauchinanet.njau.edu.cn'
(in 'njau.edu.cn'?): 202.119.64.123#53
Jun 22 17:06:19 ns postfix/smtpd[5046]: gethostby*.getanswer: asked for "169.127
.133.219.broad.sz.gd.dynamic.163data.com.cn", got "A.redirect.local"
Jun 22 17:06:19 ns last message repeated 3 times
Jun 22 17:08:44 ns postfix/smtpd[5046]: gethostby*.getanswer: asked for "37.135.
34.59.broad.mm.gd.dynamic.163data.com.cn", got "A.redirect.local"

[ 本帖最后由 ljiayu-nj 于 2007-6-22 22:20 编辑 ]