现在，连续三天，我有四个或五个独特的服务器的查询被我的csf防火墙拒绝，这些查询被重新命名为“www.example1.com”，“www.example1.com” .com“，”ns1.example3.com“，”ns2.example3.com“。 我的问题是，如果我不得不把这些视为攻击？ 如果是这样，尽pipe防火墙阻止了查询，我还是需要担心增加安全措施吗？
请注意，类似的IP和端口被命名为相同的字母。
Jul 22 12:24:00 server kernel: Firewall: *UDP_IN Blocked* IN=eth0 OUT= MAC=blahblahblah SRC=ZZZ.ZZZ.Z.ZZZ DST=25$ Jul 22 12:24:00 server named[xxxx]: client aaa.aa.aaa.a#aaaaa: query (cache) 'www.example1.com/A/IN' denied Jul 22 12:24:00 server named[xxxx]: client aaa.aa.aaa.a#bbbbb: query (cache) 'www.example2.com/A/IN' denied Jul 22 12:24:00 server named[xxxx]: client ccc.ccc.ccc.ccc#ddddd: query (cache) 'ns2.example3.com/A/IN' denied Jul 22 12:24:03 server named[xxxx]: client ddd.dd.ddd.d#eeeee: query (cache) 'ns1.example3.com/A/IN' denied Jul 22 12:24:03 server named[xxxx]: client ddd.dd.ddd.d#fffff: query (cache) 'ns2.example3.com/A/IN' denied Jul 22 12:24:03 server named[xxxx]: client ddd.dd.ddd.d#ggggg: query (cache) 'ns2.example3.com/A/IN' denied Jul 22 12:24:03 server named[xxxx]: client ddd.dd.ddd.d#hhhhh: query (cache) 'ns1.example3.com/A/IN' denied Jul 22 12:24:03 server named[xxxx]: client iii.iiii#jjjjj: query (cache) 'ns1.example3.com/A/IN' denied Jul 22 12:24:03 server named[xxxx]: client iii.iiii#jjjjj: query (cache) 'www.example2.com/A/IN' denied Jul 22 12:24:04 server named[xxxx]: client kkk.kkk.kkk.kk#lllll: query (cache) 'www.example1.com/A/IN' denied Jul 22 12:24:05 server named[xxxx]: client kkk.kkk.kkk.kk#mmmmm: query (cache) 'www.example2.com/A/IN' denied Jul 22 12:24:06 server named[xxxx]: client nnn.nn.nnn.n#ooooo: query (cache) 'www.example2.com/A/IN' denied Jul 22 12:24:06 server named[xxxx]: client ppp.pp.ppp.p#qqqqq: query (cache) 'ns2.example3.com/A/IN' denied Jul 22 12:24:06 server named[xxxx]: client ppp.pp.ppp.p#rrrr: query (cache) 'ns1.example3.com/A/IN' denied Jul 22 12:24:06 server named[xxxx]: client nnn.nn.nnn.n#sssss: query (cache) 'www.example2.com/A/IN' denied Jul 22 12:24:07 server named[xxxx]: client ppp.pp.ppp.p#ttttt: query (cache) 'ns1.example3.com/A/IN' denied Jul 22 12:24:07 server named[xxxx]: client ppp.pp.ppp.p#uuuuu: query (cache) 'ns2.example3.com/A/IN' denied Jul 22 12:24:08 server named[xxxx]: client vv.vvv.vv.vvv#wwwww: query (cache) 'www.example4.com/A/IN' denied Jul 22 12:24:08 server named[xxxx]: client xx.xxx.xx.xx#yyyyy: query (cache) 'ns1.example3.com/A/IN' denied Jul 22 12:24:10 server kernel: Firewall: *UDP_IN Blocked* IN=eth0 OUT= MAC=blahblahblah SRC=xxx.xxx.xxx.xx DST=255.255.255.255 LEN=131 TOS=0x00 PREC=0x00 TTL=128 ID=xxxx PROTO=UDP SPT=17500 DPT=17500 LEN=111 Jul 22 12:24:10 server kernel: Firewall: *UDP_IN Blocked* IN=eth0 OUT= MAC=blahblahblah SRC=xxx.xxx.xxx.xx DST=ZZZ.ZZZ.ZZZ.ZZZ LEN=131 TOS=0x00 PREC=0x00 TTL=128 ID=yyyy PROTO=UDP SPT=17500 DPT=17500 LEN=111 Jul 22 12:24:10 server kernel: Firewall: *UDP_IN Blocked* IN=eth0 OUT= MAC=blahblahblah SRC=yyy.yyy.yyy.yyy DST=255.255.255.255 LEN=115 TOS=0x00 PREC=0x00 TTL=64 ID=z DF PROTO=UDP SPT=5678 DPT=5678 LEN=95 任何想法，将不胜感激。 谢谢