作者 主題: linux messages log詢問  (閱讀 1122 次)

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jayforyou

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linux messages log詢問
« 於: 2015-02-23 09:40 »
想請問 messages log 中有大量某ip的查詢失敗的意義,該ip這樣作是何意義?

Feb 22 05:46:21 localhost named[28880]: error (FORMERR) resolving 'fcbxuzpts.www.72mn.com/A/IN': 112.90.82.194#53
Feb 22 05:46:23 localhost named[28880]: error (FORMERR) resolving 'pwocsybdswoiuay.www.72mn.com/A/IN': 112.90.82.194#53
Feb 22 05:46:23 localhost named[28880]: error (FORMERR) resolving 'hrkvvjghe.www.72mn.com/A/IN': 112.90.82.194#53
Feb 22 05:46:24 localhost named[28880]: error (FORMERR) resolving 'renuyiyolcc.www.ds300.com/A/IN': 112.90.82.194#53
Feb 22 05:46:24 localhost named[28880]: error (FORMERR) resolving 'y.www.72mn.com/A/IN': 112.90.82.194#53
Feb 22 05:46:24 localhost named[28880]: error (FORMERR) resolving 'q.www.72mn.com/A/IN': 112.90.82.194#53
Feb 22 05:46:24 localhost named[28880]: error (FORMERR) resolving 'empmankgqtmxpwv.www.72mn.com/A/IN': 112.90.82.194#53
Feb 22 05:46:24 localhost named[28880]: error (FORMERR) resolving 'vuz.www.72mn.com/A/IN': 112.90.82.194#53
Feb 22 05:46:25 localhost named[28880]: error (FORMERR) resolving 'hcuhv.www.72mn.com/A/IN': 112.90.82.194#53
Feb 22 05:46:25 localhost named[28880]: error (FORMERR) resolving 'aocqestuvjxym.www.72mn.com/A/IN': 112.90.82.194#53
Feb 22 05:46:25 localhost named[28880]: error (FORMERR) resolving 'nopdefthijkym.www.72mn.com/A/IN': 112.90.82.194#53

dark

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Re: linux messages log詢問
« 回覆 #1 於: 2015-02-24 13:57 »
您這台是 DNS

1. 用戶端可能有人想用字典檔找 www.72mn.com 的帳密
但 "@" 卻打成 "."

2. 確實存在這些位置 , 但 72mn 的 DNS server 卻掛了