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Thank you! Would you mind clarifying a bit on what environments this can save time in (so that I can make sure I am understanding this feature)? I attempted to utilize it to scan a full /24. It has been 7 hours now and nmap still has not finished. The following is a snippet of an strace, it seems to be doing about 1 or 2 ports a second. Not great performance.... Am I missing a setting somewhere? sendto(4, "E\0\0\34\241\312\0\0&\21~\200E\303\200&@}n \256\23@\244\0\10\234\237", 28, 0, {sa_family=AF_INET, sin_port=htons(16548), sin_addr=inet_addr("IP REMOVED")}, 16) = 28 gettimeofday({1338767663, 58536}, NULL) = 0 gettimeofday({1338767663, 58578}, NULL) = 0 gettimeofday({1338767663, 58642}, NULL) = 0 gettimeofday({1338767663, 58680}, NULL) = 0 gettimeofday({1338767663, 58719}, NULL) = 0 gettimeofday({1338767663, 58757}, NULL) = 0 gettimeofday({1338767663, 58795}, NULL) = 0 gettimeofday({1338767663, 58837}, NULL) = 0 gettimeofday({1338767663, 58875}, NULL) = 0 select(6, [5], NULL, NULL, {0, 999958}) = 1 (in [5], left {0, 972953}) gettimeofday({1338767663, 85990}, NULL) = 0 gettimeofday({1338767663, 86031}, NULL) = 0 select(6, [5], NULL, NULL, {0, 972805}) = 1 (in [5], left {0, 944978}) gettimeofday({1338767663, 113962}, NULL) = 0 gettimeofday({1338767663, 114003}, NULL) = 0 select(6, [5], NULL, NULL, {0, 944833}) = 1 (in [5], left {0, 701115}) gettimeofday({1338767663, 357829}, NULL) = 0 gettimeofday({1338767663, 357870}, NULL) = 0 select(6, [5], NULL, NULL, {0, 700966}) = 1 (in [5], left {0, 469247}) gettimeofday({1338767663, 589697}, NULL) = 0 gettimeofday({1338767663, 589738}, NULL) = 0 select(6, [5], NULL, NULL, {0, 469098}) = 1 (in [5], left {0, 235370}) gettimeofday({1338767663, 823590}, NULL) = 0 gettimeofday({1338767663, 823632}, NULL) = 0 select(6, [5], NULL, NULL, {0, 235205}) = 0 (Timeout) gettimeofday({1338767664, 59287}, NULL) = 0 gettimeofday({1338767664, 59328}, NULL) = 0 gettimeofday({1338767664, 59366}, NULL) = 0 gettimeofday({1338767664, 59404}, NULL) = 0 gettimeofday({1338767664, 59442}, NULL) = 0 gettimeofday({1338767664, 59495}, NULL) = 0 ioctl(4294967295, TIOCGPGRP, [16808912]) = -1 EBADF (Bad file descriptor) gettimeofday({1338767664, 59587}, NULL) = 0 gettimeofday({1338767664, 59628}, NULL) = 0 gettimeofday({1338767664, 59667}, NULL) = 0 gettimeofday({1338767664, 59704}, NULL) = 0 gettimeofday({1338767664, 59743}, NULL) = 0 gettimeofday({1338767664, 59781}, NULL) = 0 gettimeofday({1338767664, 59819}, NULL) = 0 gettimeofday({1338767664, 59860}, NULL) = 0 gettimeofday({1338767664, 59898}, NULL) = 0 select(6, [5], NULL, NULL, {0, 999959}) = 1 (in [5], left {0, 981530}) gettimeofday({1338767664, 78434}, NULL) = 0 gettimeofday({1338767664, 78474}, NULL) = 0 select(6, [5], NULL, NULL, {0, 981385}) = 1 (in [5], left {0, 970542}) gettimeofday({1338767664, 89424}, NULL) = 0 gettimeofday({1338767664, 89464}, NULL) = 0 select(6, [5], NULL, NULL, {0, 970395}) = 1 (in [5], left {0, 964544}) gettimeofday({1338767664, 95480}, NULL) = 0 gettimeofday({1338767664, 95521}, NULL) = 0 select(6, [5], NULL, NULL, {0, 964339}) = 1 (in [5], left {0, 964329}) gettimeofday({1338767664, 95620}, NULL) = 0 gettimeofday({1338767664, 95660}, NULL) = 0 select(6, [5], NULL, NULL, {0, 964199}) = 1 (in [5], left {0, 937559}) gettimeofday({1338767664, 122406}, NULL) = 0 gettimeofday({1338767664, 122447}, NULL) = 0 select(6, [5], NULL, NULL, {0, 937413}) = 1 (in [5], left {0, 928568}) gettimeofday({1338767664, 131399}, NULL) = 0 gettimeofday({1338767664, 131439}, NULL) = 0 select(6, [5], NULL, NULL, {0, 928420}) = 1 (in [5], left {0, 899584}) gettimeofday({1338767664, 160383}, NULL) = 0 gettimeofday({1338767664, 160424}, NULL) = 0 select(6, [5], NULL, NULL, {0, 899436}) = 1 (in [5], left {0, 669710}) gettimeofday({1338767664, 390274}, NULL) = 0 gettimeofday({1338767664, 390315}, NULL) = 0 select(6, [5], NULL, NULL, {0, 669545}) = 1 (in [5], left {0, 437837}) gettimeofday({1338767664, 622132}, NULL) = 0 gettimeofday({1338767664, 622173}, NULL) = 0 select(6, [5], NULL, NULL, {0, 437687}) = 1 (in [5], left {0, 407920}) gettimeofday({1338767664, 652113}, NULL) = 0 gettimeofday({1338767664, 652153}, NULL) = 0 select(6, [5], NULL, NULL, {0, 407706}) = 1 (in [5], left {0, 170982}) gettimeofday({1338767664, 888988}, NULL) = 0 gettimeofday({1338767664, 889029}, NULL) = 0 select(6, [5], NULL, NULL, {0, 170831}) = 0 (Timeout) gettimeofday({1338767665, 60170}, NULL) = 0 gettimeofday({1338767665, 60282}, NULL) = 0 gettimeofday({1338767665, 60321}, NULL) = 0 gettimeofday({1338767665, 60359}, NULL) = 0 gettimeofday({1338767665, 60397}, NULL) = 0 gettimeofday({1338767665, 60446}, NULL) = 0 ioctl(4294967295, TIOCGPGRP, [16808912]) = -1 EBADF (Bad file descriptor) gettimeofday({1338767665, 60525}, NULL) = 0 gettimeofday({1338767665, 60586}, NULL) = 0 gettimeofday({1338767665, 60625}, NULL) = 0 gettimeofday({1338767665, 60663}, NULL) = 0 gettimeofday({1338767665, 60701}, NULL) = 0 gettimeofday({1338767665, 60740}, NULL) = 0 gettimeofday({1338767665, 60777}, NULL) = 0 gettimeofday({1338767665, 60818}, NULL) = 0 gettimeofday({1338767665, 60856}, NULL) = 0 select(6, [5], NULL, NULL, {0, 283906}) = 1 (in [5], left {0, 254997}) gettimeofday({1338767665, 89873}, NULL) = 0 gettimeofday({1338767665, 89914}, NULL) = 0 select(6, [5], NULL, NULL, {0, 254851}) = 1 (in [5], left {0, 214022}) gettimeofday({1338767665, 130850}, NULL) = 0 gettimeofday({1338767665, 130890}, NULL) = 0 select(6, [5], NULL, NULL, {0, 213874}) = 0 (Timeout) gettimeofday({1338767665, 345113}, NULL) = 0 gettimeofday({1338767665, 345158}, NULL) = 0 gettimeofday({1338767665, 345196}, NULL) = 0 gettimeofday({1338767665, 345302}, NULL) = 0 gettimeofday({1338767665, 345339}, NULL) = 0 gettimeofday({1338767665, 345389}, NULL) = 0 ioctl(4294967295, TIOCGPGRP, [16808912]) = -1 EBADF (Bad file descriptor) gettimeofday({1338767665, 345469}, NULL) = 0 gettimeofday({1338767665, 345509}, NULL) = 0 sendto(4, "E\0\0\34x|\0\0007\21\226\316E\303\200&@}n \255\307\206\373\0\10V\224", 28, 0, {sa_family=AF_INET, sin_port=htons(34555), sin_addr=inet_addr("IP REMOVED")}, 16) = 28 gettimeofday({1338767665, 345668}, NULL) = 0 gettimeofday({1338767665, 345707}, NULL) = 0 gettimeofday({1338767665, 345746}, NULL) = 0 gettimeofday({1338767665, 345784}, NULL) = 0 gettimeofday({1338767665, 345822}, NULL) = 0 gettimeofday({1338767665, 345860}, NULL) = 0 gettimeofday({1338767665, 345901}, NULL) = 0 gettimeofday({1338767665, 345939}, NULL) = 0 select(6, [5], NULL, NULL, {0, 999959}) = 1 (in [5], left {0, 974286}) gettimeofday({1338767665, 371721}, NULL) = 0 gettimeofday({1338767665, 371761}, NULL) = 0 select(6, [5], NULL, NULL, {0, 974139}) = 1 (in [5], left {0, 966296}) gettimeofday({1338767665, 379712}, NULL) = 0 gettimeofday({1338767665, 379760}, NULL) = 0 gettimeofday({1338767665, 379797}, NULL) = 0 gettimeofday({1338767665, 379835}, NULL) = 0 gettimeofday({1338767665, 379883}, NULL) = 0 ioctl(4294967295, TIOCGPGRP, [16808912]) = -1 EBADF (Bad file descriptor) gettimeofday({1338767665, 379964}, NULL) = 0 gettimeofday({1338767665, 380004}, NULL) = 0 sendto(4, "E\0\0\34#\210\0\0.\21\364\277E\303\200&@}n#\255\307\265\304\0\10'\310", 28, 0, {sa_family=AF_INET, sin_port=htons(46532), sin_addr=inet_addr("IP REMOVED")}, 16) = 28 On 5/10/2012 5:15 AM, Jan-Oliver Wagner wrote: On Mittwoch 09 Mai 2012, Russell Jones wrote:Anyone have any ideas? Surely someone on this list knows what this option does :-)its about port-scanning a whole network first and then let the scanner do the vulnerability scanning for each hosts.In certain environments can save time compared to launching nmap for each single host. Its sort of experimental. Best Jan |
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