Em thấy bái phục bác chủ topic quá, hiểu biết ba cọc ba đồng mà tự tin thấy ớn. Em xin thưa là cái này người ta làm rồi và khi người ta làm cả chiếc ôtô bác phát minh ra cái bánh xe gổ. Làm ơn tìm hiểu kỹ chút được không ?. Web cachechính xác như chiro8x nói, hiện tại với những website lớn và global thì người ta dùng content delivery network (CDN) , như hình thì thằng facebook đang dùng akamai CDN provider]]>
Nói thêm là javascript không thần thánh tới mức download file rồi xử lý cái mớ ý tưởng của bác ở trên đâu. P/s: link hình: https://www.dropbox.com/s/p90oik8wi01j6yl/ddos.png À nhìn kỹ cho em cái đoạn (from cache).
C:\Documents and Settings\XXXXX>tasklist Image Name PID Session Name Session# Mem Usage ========================= ====== ================ ======== ============ System Idle Process 0 Console 0 28 K System 4 Console 0 240 K smss.exe 460 Console 0 380 K csrss.exe 712 Console 0 26,500 K winlogon.exe 736 Console 0 1,600 K services.exe 780 Console 0 4,772 K lsass.exe 792 Console 0 1,280 K svchost.exe 952 Console 0 5,848 K svchost.exe 1052 Console 0 5,308 K MsMpEng.exe 1144 Console 0 59,232 K svchost.exe 1180 Console 0 33,496 K svchost.exe 1236 Console 0 3,584 K svchost.exe 1372 Console 0 4,132 K svchost.exe 1400 Console 0 7,364 K explorer.exe 1888 Console 0 25,284 K msseces.exe 164 Console 0 10,492 K RTHDCPL.EXE 176 Console 0 21,248 K igfxtray.exe 188 Console 0 3,684 K hkcmd.exe 232 Console 0 3,816 K jusched.exe 336 Console 0 6,132 K ctfmon.exe 520 Console 0 4,456 K UniKeyNT.exe 532 Console 0 3,100 K IDMan.exe 540 Console 0 10,832 K WindowsSearch.exe 1156 Console 0 11,748 K Dropbox.exe 1276 Console 0 68,752 K spoolsv.exe 1432 Console 0 9,644 K jqs.exe 796 Console 0 1,404 K svchost.exe 2220 Console 0 4,584 K YahooAUService.exe 2388 Console 0 7,124 K searchindexer.exe 2440 Console 0 15,348 K wscntfy.exe 2736 Console 0 2,548 K alg.exe 3296 Console 0 3,604 K IEMonitor.exe 3692 Console 0 3,828 K OSPPSVC.EXE 2864 Console 0 12,308 K wmplayer.exe 1504 Console 0 20,844 K mstsc.exe 3468 Console 0 13,732 K MathType.exe 4180 Console 0 6,624 K Lingoes.exe 920 Console 0 16,692 K wmplayer.exe 5752 Console 0 16,964 K YahooMessenger.exe 5016 Console 0 54,740 K wmiprvse.exe 4520 Console 0 8,280 K TOTALCMD.EXE 2632 Console 0 7,440 K mspaint.exe 4708 Console 0 6,900 K mspaint.exe 2372 Console 0 7,776 K mspaint.exe 2812 Console 0 8,004 K mspaint.exe 3992 Console 0 7,988 K mspaint.exe 1196 Console 0 7,992 K mspaint.exe 3528 Console 0 7,992 K mspaint.exe 4652 Console 0 8,028 K mspaint.exe 3360 Console 0 8,008 K mspaint.exe 6112 Console 0 8,012 K mspaint.exe 4220 Console 0 8,032 K mspaint.exe 5424 Console 0 7,992 K mspaint.exe 5320 Console 0 8,004 K mspaint.exe 4296 Console 0 8,016 K mspaint.exe 4476 Console 0 7,996 K mspaint.exe 5032 Console 0 8,000 K mspaint.exe 4132 Console 0 8,044 K mspaint.exe 716 Console 0 8,016 K mspaint.exe 4732 Console 0 8,024 K mspaint.exe 4632 Console 0 8,032 K mspaint.exe 5940 Console 0 8,008 K mspaint.exe 1548 Console 0 8,020 K mspaint.exe 5544 Console 0 8,024 K mspaint.exe 2036 Console 0 8,024 K Skype.exe 4384 Console 0 78,740 K chrome.exe 5212 Console 0 52,544 K chrome.exe 5844 Console 0 27,484 K chrome.exe 5596 Console 0 28,044 K chrome.exe 4904 Console 0 91,432 K YahooMessenger.exe 5172 Console 0 9,680 K WINWORD.EXE 4108 Console 0 84,444 K chrome.exe 3604 Console 0 46,864 K chrome.exe 4496 Console 0 10,112 K Foxit Reader.exe 228 Console 0 54,856 K chrome.exe 4932 Console 0 48,824 K chrome.exe 5432 Console 0 122,984 K chrome.exe 2180 Console 0 57,464 K chrome.exe 5420 Console 0 24,048 K chrome.exe 588 Console 0 27,380 K chrome.exe 3136 Console 0 33,628 K chrome.exe 3148 Console 0 20,352 K mspaint.exe 5680 Console 0 4,484 K cmd.exe 3536 Console 0 2,720 K tasklist.exe 5572 Console 0 4,496 K C:\Documents and Settings\XXXXX>taskkill /f /im mspaint.exe SUCCESS: The process "mspaint.exe" with PID 4708 has been terminated. SUCCESS: The process "mspaint.exe" with PID 2372 has been terminated. SUCCESS: The process "mspaint.exe" with PID 2812 has been terminated. SUCCESS: The process "mspaint.exe" with PID 3992 has been terminated. SUCCESS: The process "mspaint.exe" with PID 1196 has been terminated. SUCCESS: The process "mspaint.exe" with PID 3528 has been terminated. SUCCESS: The process "mspaint.exe" with PID 4652 has been terminated. SUCCESS: The process "mspaint.exe" with PID 3360 has been terminated. SUCCESS: The process "mspaint.exe" with PID 6112 has been terminated. SUCCESS: The process "mspaint.exe" with PID 4220 has been terminated. SUCCESS: The process "mspaint.exe" with PID 5424 has been terminated. SUCCESS: The process "mspaint.exe" with PID 5320 has been terminated. SUCCESS: The process "mspaint.exe" with PID 4296 has been terminated. SUCCESS: The process "mspaint.exe" with PID 4476 has been terminated. SUCCESS: The process "mspaint.exe" with PID 5032 has been terminated. SUCCESS: The process "mspaint.exe" with PID 4132 has been terminated. SUCCESS: The process "mspaint.exe" with PID 716 has been terminated. SUCCESS: The process "mspaint.exe" with PID 4732 has been terminated. SUCCESS: The process "mspaint.exe" with PID 4632 has been terminated. SUCCESS: The process "mspaint.exe" with PID 5940 has been terminated. SUCCESS: The process "mspaint.exe" with PID 1548 has been terminated. SUCCESS: The process "mspaint.exe" with PID 5544 has been terminated. SUCCESS: The process "mspaint.exe" with PID 2036 has been terminated. SUCCESS: The process "mspaint.exe" with PID 5680 has been terminated.
while (true) {
MPI_Recv(&so1, 1, MPI_INT, 0, RESPONSE, MPI_COMM_WORLD, &status);
...
while (so1 < so2 && bFinish == false) {
sprintf(command, "./unrar x -p%d ./file.rar 1>/dev/null 2>/dev/null", so1);
int err = system(command);
if (err == 0) { //truong hop dung password
....
break;
}
...
}
}
the terminal server has exceeded the maximum number of allowed connections
int error=system(command);
ext4: Find_group_flex failed, fallback successeded dir 191951
Vậy cho mình hỏi cookies có phải là 1 dạng session ??Cookies là thứ được lưu trữ ở Client còn session thì ở server mà bạn. Tuy nhiên nếu xét về một khía cạnh nào đó thì Cookies là 1 dạng của session Cookies phải kết hợp với session như sau:(bạn lưu ý là cái server là connection less đó tức là khi nó đã phục vụ xong thì nó không nhớ gì về client đâu) khi bạn gửi request tới server -->server đáp ứng + tạo ra 1 giá trị session lưu trong thư mục (thường có tên trùng với giá trị session ID ) lưu ở phía server. sau đó nó server sẽ tạo ra 1 cookies lưu giá trị session id đó vào client. nhằm mục đích để lần tiếp theo phục vụ thì nó đọc cookies lấy giá trị session ID và lôi thông tin lại từ thư mục session id đó để nhớ client là ai. Vậy session sẽ bị mất trong 2 trường hợp: +Khi người dùng xóa giá trị cookies lưu giá trị session ID mà server tạo ra trên client +Session ở phía server bị timeout. Nảy sinh ra một vấn đề khi anh conmale nói là nó sẽ renew lại session (trường hợp ff restore session đó):thì nó sẽ renew như thế nào (sau vài ngày thì có lẽ session id ở phía server đã bị timeout rồi )? ]]>
Microsoft Windows XP [Version 5.1.2600] (C) Copyright 1985-2001 Microsoft Corp. xxxx>netstat Active Connections Proto Local Address Foreign Address State TCP applet:1028 localhost:1029 ESTABLISHED TCP applet:1029 localhost:1028 ESTABLISHED TCP applet:1031 localhost:1032 ESTABLISHED TCP applet:1032 localhost:1031 ESTABLISHED TCP applet:1110 localhost:1755 ESTABLISHED TCP applet:1110 localhost:2060 ESTABLISHED TCP applet:1110 localhost:2062 ESTABLISHED TCP applet:1110 localhost:2089 ESTABLISHED TCP applet:1110 localhost:2095 ESTABLISHED TCP applet:1110 localhost:2101 ESTABLISHED TCP applet:1110 localhost:2105 ESTABLISHED TCP applet:1110 localhost:2123 ESTABLISHED TCP applet:1110 localhost:2153 ESTABLISHED TCP applet:1110 localhost:2200 ESTABLISHED TCP applet:1110 localhost:2302 ESTABLISHED TCP applet:1110 localhost:2316 ESTABLISHED TCP applet:1110 localhost:2349 ESTABLISHED TCP applet:1110 localhost:2466 ESTABLISHED TCP applet:1110 localhost:2611 TIME_WAIT TCP applet:1110 localhost:2621 TIME_WAIT TCP applet:1110 localhost:2624 TIME_WAIT TCP applet:1110 localhost:2633 TIME_WAIT TCP applet:1110 localhost:2635 TIME_WAIT TCP applet:1110 localhost:2637 TIME_WAIT TCP applet:1110 localhost:2639 TIME_WAIT TCP applet:1110 localhost:2641 TIME_WAIT TCP applet:1110 localhost:2643 TIME_WAIT TCP applet:1110 localhost:2645 ESTABLISHED TCP applet:1110 localhost:2647 TIME_WAIT TCP applet:1110 localhost:2649 ESTABLISHED TCP applet:1110 localhost:2898 ESTABLISHED TCP applet:1110 localhost:2906 ESTABLISHED TCP applet:1110 localhost:3226 ESTABLISHED TCP applet:1110 localhost:3232 ESTABLISHED TCP applet:1110 localhost:3236 ESTABLISHED TCP applet:1110 localhost:3244 ESTABLISHED TCP applet:1110 localhost:3255 ESTABLISHED TCP applet:1110 localhost:3305 ESTABLISHED TCP applet:1110 localhost:3334 ESTABLISHED TCP applet:1110 localhost:3340 ESTABLISHED TCP applet:1110 localhost:3352 ESTABLISHED TCP applet:1110 localhost:3376 ESTABLISHED TCP applet:1110 localhost:3432 ESTABLISHED TCP applet:1110 localhost:3446 ESTABLISHED TCP applet:1110 localhost:3453 ESTABLISHED TCP applet:1110 localhost:3465 ESTABLISHED TCP applet:1110 localhost:3473 ESTABLISHED TCP applet:1110 localhost:3477 ESTABLISHED TCP applet:1755 localhost:1110 ESTABLISHED TCP applet:2060 localhost:1110 ESTABLISHED TCP applet:2062 localhost:1110 ESTABLISHED TCP applet:2089 localhost:1110 ESTABLISHED TCP applet:2095 localhost:1110 ESTABLISHED TCP applet:2101 localhost:1110 ESTABLISHED TCP applet:2105 localhost:1110 ESTABLISHED TCP applet:2123 localhost:1110 ESTABLISHED TCP applet:2153 localhost:1110 ESTABLISHED TCP applet:2192 localhost:1110 CLOSE_WAIT TCP applet:2200 localhost:1110 ESTABLISHED TCP applet:2224 localhost:1110 CLOSE_WAIT TCP applet:2301 localhost:2303 ESTABLISHED TCP applet:2302 localhost:1110 ESTABLISHED TCP applet:2303 localhost:2301 ESTABLISHED TCP applet:2316 localhost:1110 ESTABLISHED TCP applet:2349 localhost:1110 ESTABLISHED TCP applet:2466 localhost:1110 ESTABLISHED TCP applet:2631 localhost:1110 TIME_WAIT TCP applet:2645 localhost:1110 ESTABLISHED TCP applet:2649 localhost:1110 ESTABLISHED TCP applet:2898 localhost:1110 ESTABLISHED TCP applet:2906 localhost:1110 ESTABLISHED TCP applet:3226 localhost:1110 ESTABLISHED TCP applet:3232 localhost:1110 ESTABLISHED TCP applet:3236 localhost:1110 ESTABLISHED TCP applet:3244 localhost:1110 ESTABLISHED TCP applet:3255 localhost:1110 ESTABLISHED TCP applet:3305 localhost:1110 ESTABLISHED TCP applet:3334 localhost:1110 ESTABLISHED TCP applet:3340 localhost:1110 ESTABLISHED TCP applet:3352 localhost:1110 ESTABLISHED TCP applet:3376 localhost:1110 ESTABLISHED TCP applet:3432 localhost:1110 ESTABLISHED TCP applet:3446 localhost:1110 ESTABLISHED TCP applet:3453 localhost:1110 ESTABLISHED TCP applet:3465 localhost:1110 ESTABLISHED TCP applet:3473 localhost:1110 ESTABLISHED TCP applet:3477 localhost:1110 ESTABLISHED TCP applet:4735 localhost:1110 CLOSE_WAIT TCP applet:5152 localhost:3516 CLOSE_WAIT TCP applet:1758 208.50.77.159:http ESTABLISHED TCP applet:2061 a204-2-160-43.deploy.akamaitechnologies.com:http ESTABLISHED TCP applet:2063 236.mtl-mg21.streamtheworld.net:http ESTABLISHED TCP applet:2090 236.mtl-mg21.streamtheworld.net:3690 ESTABLISHED TCP applet:2096 236.mtl-mg21.streamtheworld.net:https ESTABLISHED TCP applet:2102 236.mtl-mg21.streamtheworld.net:http ESTABLISHED TCP applet:2106 236.mtl-mg21.streamtheworld.net:3690 ESTABLISHED TCP applet:2124 236.mtl-mg21.streamtheworld.net:https ESTABLISHED TCP applet:2154 236.mtl-mg21.streamtheworld.net:http ESTABLISHED TCP applet:2201 236.mtl-mg21.streamtheworld.net:3690 ESTABLISHED TCP applet:2317 cs121.msg.sp1.yahoo.com:5050 ESTABLISHED TCP applet:2350 sip50.voice.re2.yahoo.com:https ESTABLISHED TCP applet:2467 236.mtl-mg21.streamtheworld.net:https ESTABLISHED TCP applet:2632 pw-in-f83.1e100.net:http TIME_WAIT TCP applet:2646 ads1.vip.gq1.yahoo.com:http ESTABLISHED TCP applet:2650 pv-in-f18.1e100.net:http ESTABLISHED TCP applet:2899 236.mtl-mg21.streamtheworld.net:http ESTABLISHED TCP applet:2907 236.mtl-mg21.streamtheworld.net:3690 ESTABLISHED TCP applet:3227 236.mtl-mg21.streamtheworld.net:https ESTABLISHED TCP applet:3233 236.mtl-mg21.streamtheworld.net:http ESTABLISHED TCP applet:3237 236.mtl-mg21.streamtheworld.net:3690 ESTABLISHED TCP applet:3245 236.mtl-mg21.streamtheworld.net:https ESTABLISHED TCP applet:3256 236.mtl-mg21.streamtheworld.net:3690 ESTABLISHED TCP applet:3307 236.mtl-mg21.streamtheworld.net:http ESTABLISHED TCP applet:3335 236.mtl-mg21.streamtheworld.net:3690 ESTABLISHED TCP applet:3341 236.mtl-mg21.streamtheworld.net:https ESTABLISHED TCP applet:3353 236.mtl-mg21.streamtheworld.net:http ESTABLISHED TCP applet:3377 236.mtl-mg21.streamtheworld.net:3690 ESTABLISHED TCP applet:3433 236.mtl-mg21.streamtheworld.net:https ESTABLISHED TCP applet:3447 236.mtl-mg21.streamtheworld.net:http ESTABLISHED TCP applet:3454 236.mtl-mg21.streamtheworld.net:3690 ESTABLISHED TCP applet:3466 236.mtl-mg21.streamtheworld.net:https ESTABLISHED TCP applet:3474 236.mtl-mg21.streamtheworld.net:http ESTABLISHED TCP applet:3478 236.mtl-mg21.streamtheworld.net:3690 ESTABLISHED
Còn cái netbean đó có thể bị corrupted thật. Thử dùng một mạng khác để download xem sao. Đôi khi download ở mạng nào đó có cái proxy server đứng trước và nó lưu bản download đã bị corrupted, bồ download lại mấy lần nó cũng cung cấp bản lưu này (nên cứ corrupt mãi).Em thứ 7 down 1 lần , sáng sớm nay( thứ 2 ) down 1 lần ( 2 ngày có lẽ không còn cache lại đâu anh ) Thứ nữa là thằng bạn em ( nhà nó ở bình dương - em ở hcm) cũng bị lỗi tương tự khi cài. ]]>