[求助]Centos 5 总被人DDOS，怎么办？
如题，怎样才能查出大概是什么IP在攻击我呢？还有怎样防御下呀？谢谢高手指导！tcp 0 0 202.104.10.210:9065 220.231.140.:nati-vi-server SYN_RECV
tcp 0 0 202.104.10.210:9065 220.231.140.65:arcpd TIME_WAIT
tcp 0 0 202.104.10.210:9065 220.231.140.65:aztec TIME_WAIT
tcp 0 0 202.104.10.210:9065 220.231.140.:must-backplane TIME_WAIT
tcp 0 0 202.104.10.210:9065 220.231.140.65:must-p2p TIME_WAIT
tcp 0 0 202.104.10.210:9065 220.231.140.65:802-11-iappTIME_WAIT
tcp 0 0 202.104.10.210:9065 220.231.140.:smartcard-port TIME_WAIT
tcp 0 222 202.104.10.210:9065 135.86.84.222.broad:livelan ESTABLISHED
tcp 0 0 202.104.10.210:9065 220.231.140.65:artifact-msg TIME_WAIT
tcp 0 0 202.104.10.210:9065 220.231.140.65:ccmcomm TIME_WAIT
tcp 0 0 202.104.10.210:9065 220.231.140.65:ironstorm TIME_WAIT
tcp 0 0 202.104.10.210:9065 220.231.140.65:nesh-brokerTIME_WAIT
tcp 0 0 202.104.10.210:9065 253.236.40.59.broad.s:13728 TIME_WAIT
tcp 0 0 202.104.10.210:9065 220.231.140.65:apc-3506 TIME_WAIT
tcp 0 0 202.104.10.210:9065 220.231.140.65:vt-ssl TIME_WAIT
tcp 0 993 202.104.10.210:9065 183.221.180.60.b:omscontact ESTABLISHED
tcp 0 0 202.104.10.210:9065 239.62.18.218.broad.s:33628 ESTABLISHED
tcp 0 0 202.104.10.210:9065 220.231.140.:interactionweb TIME_WAIT
tcp 0 0 202.104.10.210:9065 220.231.140.65:webmail-2 TIME_WAIT
tcp 0 0 202.104.10.210:9065 9.70.16.218.broad.dg.g:9667 ESTABLISHED
tcp 0 0 202.104.10.210:9065 220.231.140.65:xss-port TIME_WAIT
tcp 0 1934 202.104.10.210:9065 1.55.184.60.broad.hu.:14098 ESTABLISHED
tcp 0 0 202.104.10.210:9065 220.231.140.:ipether232port TIME_WAIT
tcp 1 0 202.104.10.210:51074 ns1.centos.org:http CLOSE_WAIT
tcp 1 0 202.104.10.210:51078 ns1.centos.org:http CLOSE_WAIT
tcp 0 0 202.104.10.210:9065 220.231.140.65:seclayer-tls TIME_WAIT
tcp 0 0 202.104.10.210:9065 220.231.140.65:sccip-mediaTIME_WAIT
tcp 0 0 202.104.10.210:9065 220.231.140.65:dashpas-port TIME_WAIT
tcp 0 0 202.104.10.210:9065 220.231.140.65:isoft-p2p TIME_WAIT
tcp 0 0 202.104.10.210:9065 220.231.140.65:rtmp-port TIME_WAIT
tcp 0 0 202.104.10.210:9065 220.231.140.65:lsp-ping TIME_WAIT
tcp 0 0 202.104.10.210:9065 220.231.140.6:avinstalldisc TIME_WAIT
tcp 0 0 202.104.10.210:9065 220.231.140.65:dtp-dia TIME_WAIT
tcp 0 0 202.104.10.210:9065 220.231.140.65:fs-rh-srv TIME_WAIT
tcp 0 0 202.104.10.210:9065 239.174.80.21:indigo-server ESTABLISHED
tcp 0 0 202.104.10.210:9065 220.231.140.65:nut TIME_WAIT
tcp 0 0 202.104.10.210:9065 220.231.140.:tvdumtray-port TIME_WAIT
tcp 0 0 202.104.10.210:9065 220.231.140.65:seclayer-tcp TIME_WAIT
tcp 0 0 202.104.10.210:9065 220.231.140.65:ibm3494 TIME_WAIT
tcp 0 0 202.104.10.210:9065 220.231.140.6:cleanerliverc TIME_WAIT
tcp 0 0 202.104.10.210:9065 220.231.140.65:plethora TIME_WAIT
tcp 0 0 202.104.10.210:9065 220.231.140.65:slim-devices TIME_WAIT
tcp 0 1630 202.104.10.210:9065 159.52.134.219:pmsm-webrctl ESTABLISHED
tcp 0 0 202.104.10.210:9065 220.231.140.65:vulture TIME_WAIT
tcp 0 0 202.104.10.210:9065 220.231.140.65:celatalk TIME_WAIT
tcp 0 0 202.104.10.210:9065 220.231.140.65:gbs-stp TIME_WAIT
tcp 0 0 202.104.10.210:9065 220.231.140.65:ltctcp TIME_WAIT
tcp 0 303 202.104.10.210:9065 159.52.134.219.broad.s:essp ESTABLISHED
tcp 0 0 202.104.10.210:9065 220.231.140.65:ifsf-hb-port TIME_WAIT
tcp 0 1729 202.104.10.210:9065 159.52.134.219.:sso-service ESTABLISHED
tcp 0 0 202.104.10.210:9065 220.231.140.:jaugsremotec-2 TIME_WAIT
tcp 0 0 202.104.10.210:9065 220.231.140.:jaugsremotec-1 TIME_WAIT
tcp 0 0 202.104.10.210:9065 220.231.140.65:genisar-port TIME_WAIT
tcp 0 0 202.104.10.210:9065 220.231.140.65:ttntspauto TIME_WAIT
tcp 0 0 202.104.10.210:9065 22.48.130.219.broad.dg:4123 ESTABLISHED
tcp 0 0 202.104.10.210:9065 220.231.140.65:ecomm TIME_WAIT
tcp 0 0 202.104.10.210:9065 252.62.166.61.dial.hh.:4571 ESTABLISHED
tcp 0 1697 202.104.10.210:9065 159.52.134.21:emcsymapiport ESTABLISHED
tcp 0 0 202.104.10.210:9065 220.231.140.65:nppmp TIME_WAIT
tcp 0 0 202.104.10.210:9065 220.231.140.65:twrpc TIME_WAIT
tcp 0 0 202.104.10.210:9065 220.231.140.6:nat-stun-port TIME_WAIT
tcp 0 148 202.104.10.210:9065 159.52.134.219.bro:sms-xfer ESTABLISHED
tcp 0 0 202.104.10.210:9065 220.231.140.6:edm-mgr-cntrl TIME_WAIT
tcp 0 1261 202.104.10.210:9065 222.85.185.56:rnrp ESTABLISHED
tcp 0 0 202.104.10.210:9065 220.231.140.65:edm-mgr-sync TIME_WAIT
tcp 0 0 uke360.computer:wap-wsp uke360.computer:48402 ESTABLISHED
tcp 0 0 202.104.10.210:9065 253.236.40.59.broad.s:13723 TIME_WAIT
tcp 0 74 202.104.10.210:9065 159.52.134.219.broad:tqdata ESTABLISHED
tcp 0 0 202.104.10.210:9065 220.231.140.65:rcst TIME_WAIT
tcp 0 0 202.104.10.210:9065 253.236.40.59.broad.sz:bprd TIME_WAIT
tcp 0 0 uke360.computer:mysql uke360.computer:56895 ESTABLISHED
tcp 0 965 202.104.10.210:9065 159.52.134.219.b:sms-rcinfo ESTABLISHED
tcp 0 0 202.104.10.210:9065 220.231.140.65:workflow TIME_WAIT
tcp 0 0 uke360.computer:56895 uke360.computer:mysql ESTABLISHED
tcp 0 0 202.104.10.210:9065 220.231.140.65:pluribus TIME_WAIT
tcp 0 0 202.104.10.210:9065 220.231.140.:ttcmremotectrl TIME_WAIT
tcp 0 0 202.104.10.210:9065 220.231.140.65:jt400-ssl TIME_WAIT
tcp 0 0 202.104.10.210:9065 220.231.140.65:jt400 TIME_WAIT
tcp 0 0 202.104.10.210:9065 253.236.40.59.broad.s:13725 TIME_WAIT
tcp 0 0 202.104.10.210:9065 220.231.140.65:vat-controlTIME_WAIT
tcp 0 3063 202.104.10.210:9065 125.71.121.214:bbn-mmc ESTABLISHED
tcp 0 0 202.104.10.210:9065 220.231.140.65:vat TIME_WAIT
tcp 0 0 202.104.10.210:9065 253.236.40.59.broad.s:13715 TIME_WAIT
tcp 0 2820 202.104.10.210:9065 125.71.121.214:alta-ana-lmESTABLISHED
tcp 0 0 202.104.10.210:9065 220.231.140.65:integral TIME_WAIT
tcp 0 0 202.104.10.210:9065 9.70.16.218.broad.dg.:12022 TIME_WAIT
tcp 0 2079 202.104.10.210:9065 125.71.121.214:vpjp ESTABLISHED
tcp 0 0 202.104.10.210:9065 220.231.140.65:d3winosfi TIME_WAIT
tcp 0 0 202.104.10.210:9065 220.231.140.65:edm-stager TIME_WAIT
tcp 0 0 202.104.10.210:9065 220.231.140.65:edm-managerTIME_WAIT
tcp 0 0 202.104.10.210:9065 253.236.40.59.broad.s:13719 TIME_WAIT
tcp 0 0 202.104.10.210:9065 220.231.140.:edm-adm-notify TIME_WAIT
tcp 0 0 202.104.10.210:9065 253.236.40.59.broad.s:13716 TIME_WAIT
tcp 0 2691 202.104.10.210:9065 125.71.121.214:sbook ESTABLISHED
tcp 0 0 202.104.10.210:9065 220.231.140.:edm-std-notify TIME_WAIT
tcp 0 2620 202.104.10.210:9065 58.52.74.70:snaresecure ESTABLISHED
tcp 0 2892 202.104.10.210:9065 125.71.121.214:bbn-mmx ESTABLISHED
tcp 0 0 202.104.10.210:9065 218.9.153.213:cvmon ESTABLISHED
tcp 0 964 202.104.10.210:9065 124.205.211.217:dcutility ESTABLISHED
tcp 0 0 202.104.10.210:9065 124.205.211.217:fpitp ESTABLISHED
tcp 0 775 202.104.10.210:9065 192.201.38.58.b:cspmlockmgr ESTABLISHED
tcp 0 222 202.104.10.210:9065 135.86.84.222.broad.:sacred ESTABLISHED
tcp 0 4597 202.104.10.210:9065 62.2.130.219.:o2server-port ESTABLISHED
tcp 0 0 uke360.computer:48402 uke360.computer:wap-wsp ESTABLISHED
tcp 0 0 202.104.10.210:9065 86.174.15.218.broad.mz:3370 ESTABLISHED
tcp 0 0 202.104.10.210:9065 7.74.205.121.broad.qz.:5724 ESTABLISHED
tcp 0 1254 202.104.10.210:9065 142.144.174:video-activmail ESTABLISHED
tcp 0 1232 202.104.10.210:9065 247.153.131.219.broad.:4907 ESTABLISHED
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