리눅스 네임서버가 자꾸 죽습니다.

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Red Hat 4.1.2 사용중이고요.
리눅스 네임서버가 자꾸 죽습니다.
message 를 보면..
아래와 같습니다.
------------------------------
Sep 16 04:59:51 qssd-0142 named[26262]: client 122.136.196.117#50743 (aa.asd3sc.com): query (cache) "aa.asd3sc.com/A/IN" denied
Sep 16 04:59:51 qssd-0142 named[26262]: client 122.136.196.117#45079 (aa.asd3sc.com): query (cache) "aa.asd3sc.com/A/IN" denied
Sep 16 05:19:16 qssd-0142 named[26262]: client 122.136.196.117#1100 (aa.asd3sc.com): query (cache) "aa.asd3sc.com/A/IN" denied
Sep 16 06:01:05 qssd-0142 named[26262]: client 122.136.196.117#46114 (aa.asd3sc.com): query (cache) "aa.asd3sc.com/A/IN" denied
Sep 16 06:19:03 qssd-0142 named[26262]: client 122.136.196.117#16415 (aa.asd3sc.com): query (cache) "aa.asd3sc.com/A/IN" denied
Sep 16 06:19:03 qssd-0142 named[26262]: client 122.136.196.117#15119 (aa.asd3sc.com): query (cache) "aa.asd3sc.com/A/IN" denied
Sep 16 07:01:34 qssd-0142 named[26262]: client 122.136.196.117#11022 (aa.asd3sc.com): query (cache) "aa.asd3sc.com/A/IN" denied
Sep 16 07:19:46 qssd-0142 named[26262]: client 122.136.196.117#31402 (aa.asd3sc.com): query (cache) "aa.asd3sc.com/A/IN" denied
Sep 16 08:02:30 qssd-0142 named[26262]: client 122.136.196.117#5431 (aa.asd3sc.com): query (cache) "aa.asd3sc.com/A/IN" denied
Sep 16 08:18:07 qssd-0142 named[26262]: client 65.55.37.40#24209 (dkdvdtv.com): query (cache) "dkdvdtv.com/A/IN" denied
Sep 16 08:19:55 qssd-0142 named[26262]: client 122.136.196.117#62291 (aa.asd3sc.com): query (cache) "aa.asd3sc.com/A/IN" denied
Sep 16 08:19:55 qssd-0142 named[26262]: client 122.136.196.117#3587 (aa.asd3sc.com): query (cache) "aa.asd3sc.com/A/IN" denied
Sep 16 08:21:17 qssd-0142 named[26262]: client 94.102.49.90#37908 (la2low.cc): query (cache) "la2low.cc/A/IN" denied
Sep 16 09:03:41 qssd-0142 named[26262]: client 122.136.196.117#3437 (aa.asd3sc.com): query (cache) "aa.asd3sc.com/A/IN" denied
Sep 16 09:18:53 qssd-0142 named[26262]: client 65.55.37.41#50090 (www.dkdvdtv.com): query (cache) "www.dkdvdtv.com/A/IN" denied
Sep 16 09:19:52 qssd-0142 named[26262]: client 122.136.196.117#51824 (aa.asd3sc.com): query (cache) "aa.asd3sc.com/A/IN" denied
Sep 16 09:30:33 qssd-0142 named[26262]: client 80.82.65.204#33575 (xplodin.com): query (cache) "xplodin.com/A/IN" denied
Sep 16 09:30:55 qssd-0142 named[26262]: client 80.82.65.204#51692 (anonsc.com): query (cache) "anonsc.com/A/IN" denied
Sep 16 10:04:39 qssd-0142 named[26262]: client 122.136.196.117#52503 (aa.asd3sc.com): query (cache) "aa.asd3sc.com/A/IN" denied
Sep 16 10:04:39 qssd-0142 named[26262]: client 122.136.196.117#36583 (aa.asd3sc.com): query (cache) "aa.asd3sc.com/A/IN" denied
Sep 16 10:04:39 qssd-0142 named[26262]: client 122.136.196.117#30775 (aa.asd3sc.com): query (cache) "aa.asd3sc.com/A/IN" denied
Sep 16 10:19:41 qssd-0142 named[26262]: client 122.136.196.117#44133 (aa.asd3sc.com): query (cache) "aa.asd3sc.com/A/IN" denied
Sep 16 11:06:08 qssd-0142 named[26262]: client 122.136.196.117#2528 (aa.asd3sc.com): query (cache) "aa.asd3sc.com/A/IN" denied
Sep 16 11:19:21 qssd-0142 named[26262]: client 122.136.196.117#39361 (aa.asd3sc.com): query (cache) "aa.asd3sc.com/A/IN" denied
Sep 16 12:06:57 qssd-0142 named[26262]: client 122.136.196.117#63761 (aa.asd3sc.com): query (cache) "aa.asd3sc.com/A/IN" denied
Sep 16 12:19:30 qssd-0142 named[26262]: client 122.136.196.117#41482 (aa.asd3sc.com): query (cache) "aa.asd3sc.com/A/IN" denied
Sep 16 13:06:03 qssd-0142 named[26262]: client 65.55.37.36#21855 (dkdvdtv.com): query (cache) "dkdvdtv.com/A/IN" denied
Sep 16 13:07:53 qssd-0142 named[26262]: client 122.136.196.117#19225 (aa.asd3sc.com): query (cache) "aa.asd3sc.com/A/IN" denied
Sep 16 13:19:25 qssd-0142 named[17300]: client 122.136.196.117#35349 (aa.asd3sc.com): query (cache) "aa.asd3sc.com/A/IN" denied
Sep 16 14:09:54 qssd-0142 named[17300]: client 65.55.37.38#30439 (dkdvdtv.com): query (cache) "dkdvdtv.com/A/IN" denied
Sep 16 14:19:36 qssd-0142 named[17300]: client 122.136.196.117#41136 (aa.asd3sc.com): query (cache) "aa.asd3sc.com/A/IN" denied
Sep 16 14:19:36 qssd-0142 named[17300]: client 122.136.196.117#22448 (aa.asd3sc.com): query (cache) "aa.asd3sc.com/A/IN" denied
Sep 16 14:19:36 qssd-0142 named[17300]: client 122.136.196.117#13232 (aa.asd3sc.com): query (cache) "aa.asd3sc.com/A/IN" denied
Sep 16 14:36:09 qssd-0142 named[17300]: client 64.236.64.139#42999 (dnsscan.shadowserver.org): query (cache) "dnsscan.shadowserver.org/A/IN" denied
Sep 16 15:09:45 qssd-0142 named[17300]: client 122.136.196.117#35721 (aa.asd3sc.com): query (cache) "aa.asd3sc.com/A/IN" denied
Sep 16 15:19:41 qssd-0142 named[17300]: client 122.136.196.117#3461 (aa.asd3sc.com): query (cache) "aa.asd3sc.com/A/IN" denied
Sep 16 15:19:41 qssd-0142 named[17300]: client 122.136.196.117#44661 (aa.asd3sc.com): query (cache) "aa.asd3sc.com/A/IN" denied
Sep 17 20:33:43 qssd-0142 named[21191]: client 65.55.37.40#42416 (dkdvdtv.com): query (cache) "dkdvdtv.com/A/IN" denied
Sep 17 21:34:06 qssd-0142 named[21191]: client 65.55.37.41#5747 (dkdvdtv.com): query (cache) "dkdvdtv.com/A/IN" denied
-------------------------------------------------------------------------------------

혹 이것 때문에 네임서버가 죽지 않을까 생각듭니다.
데몬은 살아있는 상태입니다.
서버가 매일마다 다운되니..힘이 빠집니다.
네임서버 구동후 약 12시간~24시간사이 다운되 버립니다.
왜그런지 궁금합니다..
짧은글 일수록 신중하게.
warpy 2013-09
레드햇 4.1.2 면 .... 뭘 고친다고 해결 될 것 같진 않구요.
그나마 해결책은 crontab 에 등록시켜서 일정시간마다 한번씩 리스타트 하게 하는 게 어떨까 싶습니다.

가능하면 최신버전으로 바꾸시는 게.. (하드웨어도 바꾸시는 게..)
bind 버전을 확인 한번 해보세요 서비스 거부 취약점 때문에 다운되는 경우가 있습니다.
이상윤236 2013-09
저도 같은 증상. ㅠ.ㅠ
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