在solaris2.6上近来频繁报错致使web不能用！

lix1216

在solaris2.6上近来频繁发现 WARNING: High TCP connect timeout rate! System. (port 80) may be under a SYN flood attack!\r\n致使web不能用，\r\n\r\n我现在设置了\r\nndd –set /dev/tcp tcp_conn_req_max_q0 4096\r\n仍然报这样的错\r\n\r\n\r\n急！！！

lix1216

Jul  6 11:37:34 cqg.com.cn named[460]: bad referral (qq.com !< adsfile.qq.com) from [219.133.41.245].53\r\nJul  6 11:37:34 cqg.com.cn last message repeated 1 time\r\nJul  6 11:38:35 cqg.com.cn sshd[606]: Failed password for ROOT from 61.115.76.253 port 35526 ssh2\r\nJul  6 11:38:35 cqg.com.cn sshd[606]: Received disconnect from 61.115.76.253: 11: Bye Bye\r\nJul  6 11:38:42 cqg.com.cn sshd[607]: Failed password for ROOT from 61.115.76.253 port 35619 ssh2\r\nJul  6 11:38:42 cqg.com.cn sshd[607]: Received disconnect from 61.115.76.253: 11: Bye Bye\r\nJul  6 11:38:45 cqg.com.cn sshd[608]: Failed password for ROOT from 61.115.76.253 port 35756 ssh2\r\nJul  6 11:38:46 cqg.com.cn sshd[608]: Received disconnect from 61.115.76.253: 11: Bye Bye\r\nJul  6 11:38:56 cqg.com.cn sshd[609]: Did not receive identification string from 61.115.76.253.\r\nJul  6 11:39:14 cqg.com.cn named[460]: denied update from [61.186.158.156].2780 for \"cqg.com.cn\"\r\nJul  6 11:41:31 cqg.com.cn named[460]: Lame server on \'bt.f234.com\' (in \'f234.com\'?): [66.249.19.218].53 \'ns10.dnscloud.com\'\r\nJul  6 11:41:32 cqg.com.cn named[460]: Lame server on \'bt.f234.com\' (in \'f234.com\'?): [66.249.19.217].53 \'ns9.dnscloud.com\'\r\nJul  6 11:41:34 cqg.com.cn named[460]: ns_forw: query(BT.F234.COM) All possible A RR\'s lame\r\nJul  6 11:43:08 cqg.com.cn named[460]: wrong ans. name (intl.dl.wu.akadns.net != main.dl.wu.akadns.net)\r\nJul  6 11:43:15 cqg.com.cn last message repeated 1 time\r\nJul  6 11:44:22 cqg.com.cn named[460]: Lame server on \'www.cqpc.com.cn.com.cn\' (in \'cn.com.cn\'?): [159.226.1.8].53 \'nm.cnnic.net.cn\'\r\nJul  6 11:46:31 cqg.com.cn named[460]: Lame server on \'tracker.egoxa.net\' (in \'egoxa.NET\'?): [67.18.8.138].53 \'ns5.readysetconnect.c\r\nom\'\r\nJul  6 11:46:31 cqg.com.cn unix: WARNING: High TCP connect timeout rate! System (port 80) may be under a SYN flood attack!\r\nJul  6 11:46:31 cqg.com.cn named[460]: Lame server on \'tracker.egoxa.net\' (in \'egoxa.NET\'?): [67.18.8.139].53 \'ns6.readysetconnect.c\r\nom\'\r\nJul  6 11:46:49 cqg.com.cn named[460]: Lame server on \'super3.hawkies-world.co.uk\' (in \'hawkies-world.CO.UK\'?): [213.171.192.237].53\r\n \'ns2.fast-hosts.org\'\r\nJul  6 11:46:49 cqg.com.cn named[460]: Lame server on \'super3.hawkies-world.co.uk\' (in \'hawkies-world.CO.UK\'?): [213.171.192.238].53\r\n \'ns1.fast-hosts.org\'\r\nJul  6 11:48:41 cqg.com.cn unix: WARNING: High TCP connect timeout rate! System (port 80) may be under a SYN flood attack!\r\nJul  6 11:48:53 cqg.com.cn named[460]: wrong ans. name (g.www.ms.akadns.net != toggle.www.ms.akadns.net)\r\nJul  6 11:48:53 cqg.com.cn named[460]: wrong ans. name (lb1.www.ms.akadns.net != toggle.www.ms.akadns.net)\r\nJul  6 11:48:53 cqg.com.cn named[460]: wrong ans. name (lb1.www.ms.akadns.net != g.www.ms.akadns.net)\r\nJul  6 11:48:54 cqg.com.cn last message repeated 18 times\r\nJul  6 11:49:14 cqg.com.cn named[460]: denied update from [61.186.158.156].2788 for \"cqg.com.cn\"\r\n--More--