我使用 BIND 作為我的 DNS 伺服器。我已停用遞歸 DNS 請求。現在我受到某種攻擊。有什麼東西可以阻止它還是我必須放手？
我的查詢日誌：
client 75.214.6.32#39884: query: elipylavofkb.www.florasky.cn IN A + (MY SERVER IP)
client 19.61.194.206#59208: query: mzynovatmhapahen.www.ludashi789.com IN A + (MY SERVER IP)
client 108.8.241.1#50963: query: mdelolwtspupyzmz.www.ludashi789.com IN A + (MY SERVER IP)
client 112.224.24.10#63434: query: wdybkhodehov.www.florasky.cn IN A + (MY SERVER IP)
client 76.160.109.141#1231: query: gxefmpidgjur.www.florasky.cn IN A + (MY SERVER IP)
client 16.18.114.118#37018: query: engjcvwjsdgz.www.florasky.cn IN A + (MY SERVER IP)
client 114.99.158.44#33012: query: ulkhwvopolud.www.florasky.cn IN A + (MY SERVER IP)
client 50.171.130.116#58826: query: uneburexorkbsrgx.www.ludashi789.com IN A + (MY SERVER IP)
client 96.17.162.81#24693: query: unsjwpinczcd.www.ludashi789.com IN A + (MY SERVER IP)
client 116.158.62.221#9755: query: clylslwdwlov.www.ludashi789.com IN A + (MY SERVER IP)
client 114.197.183.246#39810: query: qjyn.www.florasky.cn IN A + (MY SERVER IP)
client 82.43.231.89#35249: query: yxwlubah.www.florasky.cn IN A + (MY SERVER IP)
client 21.189.79.22#30864: query: wpgboted.www.florasky.cn IN A + (MY SERVER IP)
client 50.107.178.249#5585: query: kzwhmdqjqrat.www.ludashi789.com IN A + (MY SERVER IP)
client 14.57.75.38#26008: query: ojudkzytqlqn.www.ludashi789.com IN A + (MY SERVER IP)
client 98.214.7.43#51927: query: md.www.florasky.cn IN A + (MY SERVER IP)
client 61.51.158.42#5778: query: ufstavonszktox.www.ludashi789.com IN A + (MY SERVER IP)
client 24.221.104.57#38899: query: gpexcvixodaj.www.florasky.cn IN A + (MY SERVER IP)
client 75.217.45.169#50011: query: ybmdyjob.www.florasky.cn IN A + (MY SERVER IP)
client 111.205.26.113#63499: query: onwzmlgpsfwzap.www.ludashi789.com IN A + (MY SERVER IP)
client 113.68.70.81#9947: query: kvajqdmxqxgzal.www.florasky.cn IN A + (MY SERVER IP)
client 95.193.118.38#13226: query: gnyjyrinovclsfqn.www.ludashi789.com IN A + (MY SERVER IP)
client 101.121.90.99#9047: query: wfglevwnqfwfkl.www.ludashi789.com IN A + (MY SERVER IP)
client 13.76.29.77#13797: query: ingrsrsdwvexkp.www.ludashi789.com IN A + (MY SERVER IP)
client 67.88.217.227#24213: query: edqjujahodyf.www.ludashi789.com IN A + (MY SERVER IP)
client 37.108.134.137#53089: query: qxojixixmpahyngx.www.ludashi789.com IN A + (MY SERVER IP)
答案1
首先要明白的是，您不是這次攻擊的目標。當啟用遞歸時，討厭的人在他們的網路掃描中發現了這一點，並且您的伺服器被添加到「願意」協助他們的攻擊節點清單中。
儘管該漏洞已被修補，但您現在處於一個包含易受攻擊的伺服器的資料庫中，該資料庫已分佈在至少一個惡意軟體網路中。您無法更改這一點：除非有人決定清理他們的列表，否則這些查詢將不斷出現。除非您的管道（或日誌磁碟）很小，否則這些查詢被拒絕時不會對您的伺服器產生太大影響。
我真正可以建議的另一件事是，將此服務移至不同的 IP 位址，並用可以輕鬆丟棄連接埠 53 上所有流量的裝置替換此 IP。