單位自建的DNS服務器系統日志里有許多如下的錯誤：
May 27 21:04:16 dns3 named[3849]: client @0x7f61d8078190 172.21.75.221#61892 (targetednotifications-tm.trafficmanager.net): query failed (SERVFAIL) for targetednotifications-tm.trafficmanager.net/IN/AAAA at ../../../bin/named/query.c:8580
May 27 21:04:16 dns3 named[3849]: client @0x7f61bc1214d0 172.18.220.232#54919 (smetrics.ni.com): query failed (SERVFAIL) for smetrics.ni.com/IN/A at ../../../bin/named/query.c:8580
May 27 21:04:16 dns3 named[3849]: client @0x7f61b80fba00 172.18.169.157#62160 (open.acgtracker.com): query failed (SERVFAIL) for open.acgtracker.com/IN/A at ../../../bin/named/query.c:8580
May 27 21:04:16 dns3 named[3849]: client @0x7f61b8102f20 172.18.169.157#50435 (denis.stalker.upeer.me): query failed (SERVFAIL) for denis.stalker.upeer.me/IN/A at ../../../bin/named/query.c:8580
May 27 21:04:16 dns3 named[3849]: client @0x7f61d406e6a0 172.18.171.174#55211 (ocsp.comodoca.com): query failed (SERVFAIL) for ocsp.comodoca.com/IN/A at ../../../bin/named/query.c:8580
May 27 21:04:16 dns3 named[3849]: client @0x7f61d402f980 172.18.171.174#51434 (ocsp.comodoca.com): query failed (SERVFAIL) for ocsp.comodoca.com/IN/A at ../../../bin/named/query.c:8580
May 27 21:04:16 dns3 named[3849]: client @0x7f61c80eddb0 202.195.149.27#54603 (251.149.195.202.in-addr.arpa): query failed (SERVFAIL) for 251.149.195.202.in-addr.arpa/IN/PTR at ../../../bin/named/query.c:8580
May 27 21:04:16 dns3 named[3849]: client @0x7f61e431b380 172.18.171.174#57354 (www.webofknowledge.com): query failed (SERVFAIL) for www.webofknowledge.com/IN/A at ../../../bin/named/query.c:8580
May 27 21:04:16 dns3 named[3849]: client @0x7f61c806a7d0 172.18.220.232#63914 (ds.serving-sys.com): query failed (SERVFAIL) for ds.serving-sys.com/IN/A at ../../../bin/named/query.c:8580
May 27 21:04:16 dns3 named[3849]: client @0x7f61b00db8d0 172.16.128.86#49770 (sn3301.storage.live.com): query failed (SERVFAIL) for sn3301.storage.live.com/IN/AAAA at ../../../bin/named/query.c:8580
請問這樣的錯誤如何解決，是配置問題還是系統問題
望指教，先謝了
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