ขอวิธีป้องกัน Dos Attack

[attawut98]

ผมใช้ Debian โดน Dos จากต่างประเทศ และในประเทศ มาทำร้าย Apache ไม่ทราบว่าแก้ไขยังไงคับ

tcp6 0 1 i08.zoftdev.com:www [UNKNOWN]:16450 FIN_WAIT1
getnameinfo failed
tcp6 0 501 i08.zoftdev.com:www [UNKNOWN]:3706 LAST_ACK
tcp6 0 0 i08.zoftdev.com:www i08.zoftdev.com:46110 TIME_WAIT
getnameinfo failed
tcp6 0 501 i08.zoftdev.com:www [UNKNOWN]:50870 LAST_ACK
getnameinfo failed
tcp6 0 501 i08.zoftdev.com:www [UNKNOWN]:6948 LAST_ACK
getnameinfo failed
tcp6 43 0 i08.zoftdev.com:www [UNKNOWN]:56855 ESTABLISHED
getnameinfo failed
tcp6 0 887 i08.zoftdev.com:www [UNKNOWN]:1668 FIN_WAIT1
getnameinfo failed
tcp6 43 0 i08.zoftdev.com:www [UNKNOWN]:65327 ESTABLISHED
getnameinfo failed
tcp6 0 0 i08.zoftdev.com:www [UNKNOWN]:15403 CLOSE_WAIT
getnameinfo failed
tcp6 0 0 i08.zoftdev.com:www [UNKNOWN]:4249 TIME_WAIT
getnameinfo failed
tcp6 44 0 i08.zoftdev.com:www [UNKNOWN]:3642 CLOSE_WAIT
getnameinfo failed
tcp6 43 0 i08.zoftdev.com:www [UNKNOWN]:56853 ESTABLISHED
getnameinfo failed
tcp6 43 0 i08.zoftdev.com:www [UNKNOWN]:5494 ESTABLISHED
getnameinfo failed
tcp6 0 0 i08.zoftdev.com:www [UNKNOWN]:15419 ESTABLISHED
getnameinfo failed
tcp6 44 0 i08.zoftdev.com:www [UNKNOWN]:46492 CLOSE_WAIT
getnameinfo failed
tcp6 0 887 i08.zoftdev.com:www [UNKNOWN]:50981 LAST_ACK
getnameinfo failed
tcp6 0 0 i08.zoftdev.com:www [UNKNOWN]:4819 ESTABLISHED
getnameinfo failed
tcp6 0 501 i08.zoftdev.com:www [UNKNOWN]:4627 LAST_ACK
getnameinfo failed
tcp6 0 1 i08.zoftdev.com:www [UNKNOWN]:61113 FIN_WAIT1
getnameinfo failed
tcp6 0 501 i08.zoftdev.com:www [UNKNOWN]:21661 FIN_WAIT1
tcp6 0 0 i08.zoftdev.com:www i08.zoftdev.com:46116 TIME_WAIT
tcp6 0 0 i08.zoftdev.com:www i08.zoftdev.com:45860 TIME_WAIT
getnameinfo failed
tcp6 1 0 i08.zoftdev.com:www [UNKNOWN]:3341 CLOSE_WAIT
getnameinfo failed
tcp6 0 0 i08.zoftdev.com:www [UNKNOWN]:50759 TIME_WAIT
getnameinfo failed
tcp6 0 0 i08.zoftdev.com:www [UNKNOWN]:22194 TIME_WAIT



ขอบคุณมากคับ

[asylu3]

การแก้ไข DOS นั้นต้องอาศัยหลายอย่างควบคู่กันนะครับ จะได้ไม่เกิดปัญหา fault alarm แล้วไปแก้ปัญหาโดนผู้ใช้ปกติเข้า
การแก้ไขใหญ่ๆ มี

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[aratanawa]

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