МИНИСТЕРСТВО ЦИФРОВОГО РАЗВИТИЯ И МАССОВЫХ КОММУНИКАЦИЙ РОССИЙСКОЙ ФЕДЕРАЦИИ
ФЕДЕРАЛЬНОЕ ГОСУДАРСТВЕННОЕ БЮДЖЕТНОЕ ОБРАЗОВАТЕЛЬНОЕ УЧРЕЖДЕНИЕ ВЫСШЕГО ОБРАЗОВАНИЯ
САНКТ-ПЕТЕРБУРГСКИЙ ГОСУДАРСТВЕННЫЙ УНИВЕРСИТЕТ ТЕЛЕКОММУНИКАЦИЙ ИМ. ПРОФ. М. А. БОНЧ-БРУЕВИЧА
Кафедра сетей связи и передачи данных
Отчет по лабораторной работе №4
«Технологии управления и протоколы обработки удаленного доступа»
По дисциплине: «Интернет-протоколы, сервисы и услуги»
Цель работы:
Лабораторная работа предназначена для целей практического ознакомления с программным обеспечением удаленного доступа к системам обработки данных. Рассматривается создание шифрованных транспортных туннелей для обеспечения средств управления и передачи файлов между центром управления и удаленной системой обработки данных.
Выполнение работы:
1. Открыть эмулятор терминала ОС и запустить анализатор сетевого трафика tcpdump с фильтром пакетов, получаемых и передаваемых от узла 172.16.100.88 с TCP-портом источника или назначения 23. С помощью команды tee вывести отфильтрованные IP-пакеты на экран эмулятора терминала и сохранить данные в файл telnet.log в домашнем каталоге пользователя.
2. Открыть второй эмулятор терминала и попытаться установить соединение с удаленным сервером по адресу 172.16.100.88 по сетевому протоколу telnet
3. Воспользовавшись окном сетевого монитора tcpdump, анализировать прохождение сетевых пакетов между узлами назначения. Отметить пакеты инициации соединения telnet.
sudo tcpdump -lvnXX host '172.16.100.88 and host 172.16.100.21 and tcp and (src port 23 or dst port 23)'
tcpdump: listening on enp2s0, link-type EN10MB (Ethernet), capture size 262144 bytes
18:25:00.973104 IP (tos 0x10, ttl 64, id 18524, offset 0, flags [DF], proto TCP (6), length 60)
172.16.100.21.42238 > 172.16.100.88.23: Flags [S], cksum 0x4047 (correct), seq 2566983496, win 29200, options [mss 1460,sackOK,TS val 1117578526 ecr 0,nop,wscale 7], length 0
0x0000: 0019 dbaf 9333 d027 88cf e290 0800 4510 .....3.'......E.
0x0010: 003c 485c 4000 4006 d1c1 ac10 6415 ac10 .<H\@.@.....d...
0x0020: 6458 a4fe 0017 9901 0f48 0000 0000 a002 dX.......H......
0x0030: 7210 4047 0000 0204 05b4 0402 080a 429c r.@G..........B.
0x0040: e51e 0000 0000 0103 0307 ..........
18:25:00.973353 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto TCP (6), length 60)
172.16.100.88.23 > 172.16.100.21.42238: Flags [S.], cksum 0x4e9a (correct), seq 3730303138, ack 2566983497, win 5792, options [mss 1460,sackOK,TS val 2391537542 ecr 1117578526,nop,wscale 6], length 0
0x0000: d027 88cf e290 0019 dbaf 9333 0800 4500 .'.........3..E.
0x0010: 003c 0000 4000 4006 1a2e ac10 6458 ac10 .<..@.@.....dX..
0x0020: 6415 0017 a4fe de57 e8a2 9901 0f49 a012 d......W.....I..
0x0030: 16a0 4e9a 0000 0204 05b4 0402 080a 8e8b ..N.............
0x0040: f786 429c e51e 0103 0306 ..B.......
18:25:00.973397 IP (tos 0x10, ttl 64, id 18525, offset 0, flags [DF], proto TCP (6), length 52)
172.16.100.21.42238 > 172.16.100.88.23: Flags [.], cksum 0x931f (correct), ack 1, win 229, options [nop,nop,TS val 1117578527 ecr 2391537542], length 0
0x0000: 0019 dbaf 9333 d027 88cf e290 0800 4510 .....3.'......E.
0x0010: 0034 485d 4000 4006 d1c8 ac10 6415 ac10 .4H]@.@.....d...
0x0020: 6458 a4fe 0017 9901 0f49 de57 e8a3 8010 dX.......I.W....
0x0030: 00e5 931f 0000 0101 080a 429c e51f 8e8b ..........B.....
0x0040: f786 ..
18:25:00.973519 IP (tos 0x10, ttl 64, id 18526, offset 0, flags [DF], proto TCP (6), length 76)
172.16.100.21.42238 > 172.16.100.88.23: Flags [P.], cksum 0x36ae (correct), seq 1:25, ack 1, win 229, options [nop,nop,TS val 1117578527 ecr 2391537542], length 24 [telnet DO SUPPRESS GO AHEAD, WILL TERMINAL TYPE, WILL NAWS, WILL TSPEED, WILL LFLOW, WILL LINEMODE, WILL NEW-ENVIRON, DO STATUS [|telnet]
0x0000: 0019 dbaf 9333 d027 88cf e290 0800 4510 .....3.'......E.
0x0010: 004c 485e 4000 4006 d1af ac10 6415 ac10 .LH^@.@.....d...
0x0020: 6458 a4fe 0017 9901 0f49 de57 e8a3 8018 dX.......I.W....
0x0030: 00e5 36ae 0000 0101 080a 429c e51f 8e8b ..6.......B.....
0x0040: f786 fffd 03ff fb18 fffb 1fff fb20 fffb ................
0x0050: 21ff fb22 fffb 27ff fd05 !.."..'...
18:25:00.973739 IP (tos 0x0, ttl 64, id 7973, offset 0, flags [DF], proto TCP (6), length 52)
172.16.100.88.23 > 172.16.100.21.42238: Flags [.], cksum 0x9391 (correct), ack 25, win 91, options [nop,nop,TS val 2391537542 ecr 1117578527], length 0
0x0000: d027 88cf e290 0019 dbaf 9333 0800 4500 .'.........3..E.
0x0010: 0034 1f25 4000 4006 fb10 ac10 6458 ac10 .4.%@.@.....dX..
0x0020: 6415 0017 a4fe de57 e8a3 9901 0f61 8010 d......W.....a..
0x0030: 005b 9391 0000 0101 080a 8e8b f786 429c .[............B.
0x0040: e51f ..
18:25:00.978343 IP (tos 0x0, ttl 64, id 7974, offset 0, flags [DF], proto TCP (6), length 64)
172.16.100.88.23 > 172.16.100.21.42238: Flags [P.], cksum 0x5c38 (correct), seq 1:13, ack 25, win 91, options [nop,nop,TS val 2391537544 ecr 1117578527], length 12 [telnet DO TERMINAL TYPE, DO TSPEED, DO XDISPLOC, DO NEW-ENVIRON [|telnet]
0x0000: d027 88cf e290 0019 dbaf 9333 0800 4500 .'.........3..E.
0x0010: 0040 1f26 4000 4006 fb03 ac10 6458 ac10 .@.&@.@.....dX..
0x0020: 6415 0017 a4fe de57 e8a3 9901 0f61 8018 d......W.....a..
0x0030: 005b 5c38 0000 0101 080a 8e8b f788 429c .[\8..........B.
0x0040: e51f fffd 18ff fd20 fffd 23ff fd27 ..........#..'
18:25:00.978370 IP (tos 0x10, ttl 64, id 18527, offset 0, flags [DF], proto TCP (6), length 52)
172.16.100.21.42238 > 172.16.100.88.23: Flags [.], cksum 0x92f4 (correct), ack 13, win 229, options [nop,nop,TS val 1117578532 ecr 2391537544], length 0
0x0000: 0019 dbaf 9333 d027 88cf e290 0800 4510 .....3.'......E.
0x0010: 0034 485f 4000 4006 d1c6 ac10 6415 ac10 .4H_@.@.....d...
0x0020: 6458 a4fe 0017 9901 0f61 de57 e8af 8010 dX.......a.W....
0x0030: 00e5 92f4 0000 0101 080a 429c e524 8e8b ..........B..$..
0x0040: f788 ..
18:25:00.978434 IP (tos 0x10, ttl 64, id 18528, offset 0, flags [DF], proto TCP (6), length 55)
172.16.100.21.42238 > 172.16.100.88.23: Flags [P.], cksum 0x6fec (correct), seq 25:28, ack 13, win 229, options [nop,nop,TS val 1117578532 ecr 2391537544], length 3 [telnet WONT XDISPLOC [|telnet]
0x0000: 0019 dbaf 9333 d027 88cf e290 0800 4510 .....3.'......E.
0x0010: 0037 4860 4000 4006 d1c2 ac10 6415 ac10 .7H`@.@.....d...
0x0020: 6458 a4fe 0017 9901 0f61 de57 e8af 8018 dX.......a.W....
0x0030: 00e5 6fec 0000 0101 080a 429c e524 8e8b ..o.......B..$..
0x0040: f788 fffc 23 ....#
18:25:00.978578 IP (tos 0x0, ttl 64, id 7975, offset 0, flags [DF], proto TCP (6), length 67)
172.16.100.88.23 > 172.16.100.21.42238: Flags [P.], cksum 0x6d30 (correct), seq 13:28, ack 25, win 91, options [nop,nop,TS val 2391537544 ecr 1117578532], length 15 [telnet WILL SUPPRESS GO AHEAD, DO NAWS, DO LFLOW, DONT LINEMODE, WILL STATUS [|telnet]
0x0000: d027 88cf e290 0019 dbaf 9333 0800 4500 .'.........3..E.
0x0010: 0043 1f27 4000 4006 faff ac10 6458 ac10 .C.'@.@.....dX..
0x0020: 6415 0017 a4fe de57 e8af 9901 0f61 8018 d......W.....a..
0x0030: 005b 6d30 0000 0101 080a 8e8b f788 429c .[m0..........B.
0x0040: e524 fffb 03ff fd1f fffd 21ff fe22 fffb .$........!.."..
0x0050: 05 .
18:25:01.017888 IP (tos 0x0, ttl 64, id 7976, offset 0, flags [DF], proto TCP (6), length 52)
172.16.100.88.23 > 172.16.100.21.42238: Flags [.], cksum 0x9362 (correct), ack 28, win 91, options [nop,nop,TS val 2391537554 ecr 1117578532], length 0
0x0000: d027 88cf e290 0019 dbaf 9333 0800 4500 .'.........3..E.
0x0010: 0034 1f28 4000 4006 fb0d ac10 6458 ac10 .4.(@.@.....dX..
0x0020: 6415 0017 a4fe de57 e8be 9901 0f64 8010 d......W.....d..
0x0030: 005b 9362 0000 0101 080a 8e8b f792 429c .[.b..........B.
0x0040: e524 .$
18:25:01.017933 IP (tos 0x10, ttl 64, id 18529, offset 0, flags [DF], proto TCP (6), length 61)
172.16.100.21.42238 > 172.16.100.88.23: Flags [P.], cksum 0x29af (correct), seq 28:37, ack 28, win 229, options [nop,nop,TS val 1117578571 ecr 2391537544], length 9 [telnet SB NAWS IS 0x43 0 0x16 SE [|telnet]
0x0000: 0019 dbaf 9333 d027 88cf e290 0800 4510 .....3.'......E.
0x0010: 003d 4861 4000 4006 d1bb ac10 6415 ac10 .=Ha@.@.....d...
0x0020: 6458 a4fe 0017 9901 0f64 de57 e8be 8018 dX.......d.W....
0x0030: 00e5 29af 0000 0101 080a 429c e54b 8e8b ..).......B..K..
0x0040: f788 fffa 1f00 4300 16ff f0 ......C....
18:25:01.018162 IP (tos 0x0, ttl 64, id 7977, offset 0, flags [DF], proto TCP (6), length 70)
172.16.100.88.23 > 172.16.100.21.42238: Flags [P.], cksum 0x3451 (correct), seq 28:46, ack 37, win 91, options [nop,nop,TS val 2391537554 ecr 1117578571], length 18 [telnet SB TSPEED SEND SE, SB NEW-ENVIRON SEND SE, SB TERMINAL TYPE SEND SE [|telnet]
0x0000: d027 88cf e290 0019 dbaf 9333 0800 4500 .'.........3..E.
0x0010: 0046 1f29 4000 4006 fafa ac10 6458 ac10 .F.)@.@.....dX..
0x0020: 6415 0017 a4fe de57 e8be 9901 0f6d 8018 d......W.....m..
0x0030: 005b 3451 0000 0101 080a 8e8b f792 429c .[4Q..........B.
0x0040: e54b fffa 2001 fff0 fffa 2701 fff0 fffa .K........'.....
0x0050: 1801 fff0 ....
18:25:01.018255 IP (tos 0x10, ttl 64, id 18530, offset 0, flags [DF], proto TCP (6), length 95)
172.16.100.21.42238 > 172.16.100.88.23: Flags [P.], cksum 0xee99 (correct), seq 37:80, ack 46, win 229, options [nop,nop,TS val 1117578571 ecr 2391537554], length 43 [telnet SB TSPEED IS 0x33 0x38 0x34 0x30 0x30 0x2c 0x33 0x38 0x34 0x30 0x30 SE, SB NEW-ENVIRON IS SE, SB TERMINAL TYPE IS 0x78 0x74 0x65 0x72 0x6d 0x2d 0x32 0x35 0x36 0x63 0x6f 0x6c 0x6f 0x72 SE [|telnet]
0x0000: 0019 dbaf 9333 d027 88cf e290 0800 4510 .....3.'......E.
0x0010: 005f 4862 4000 4006 d198 ac10 6415 ac10 ._Hb@.@.....d...
0x0020: 6458 a4fe 0017 9901 0f6d de57 e8d0 8018 dX.......m.W....
0x0030: 00e5 ee99 0000 0101 080a 429c e54b 8e8b ..........B..K..
0x0040: f792 fffa 2000 3338 3430 302c 3338 3430 ......38400,3840
0x0050: 30ff f0ff fa27 00ff f0ff fa18 0078 7465 0....'.......xte
0x0060: 726d 2d32 3536 636f 6c6f 72ff f0 rm-256color..
18:25:01.022448 IP (tos 0x0, ttl 64, id 7978, offset 0, flags [DF], proto TCP (6), length 55)
172.16.100.88.23 > 172.16.100.21.42238: Flags [P.], cksum 0x91eb (correct), seq 46:49, ack 80, win 91, options [nop,nop,TS val 2391537555 ecr 1117578571], length 3 [telnet DO ECHO [|telnet]
0x0000: d027 88cf e290 0019 dbaf 9333 0800 4500 .'.........3..E.
0x0010: 0037 1f2a 4000 4006 fb08 ac10 6458 ac10 .7.*@.@.....dX..
0x0020: 6415 0017 a4fe de57 e8d0 9901 0f98 8018 d......W........
0x0030: 005b 91eb 0000 0101 080a 8e8b f793 429c .[............B.
0x0040: e54b fffd 01 .K...
18:25:01.022541 IP (tos 0x10, ttl 64, id 18531, offset 0, flags [DF], proto TCP (6), length 55)
172.16.100.21.42238 > 172.16.100.88.23: Flags [P.], cksum 0x915a (correct), seq 80:83, ack 49, win 229, options [nop,nop,TS val 1117578576 ecr 2391537555], length 3 [telnet WONT ECHO [|telnet]
0x0000: 0019 dbaf 9333 d027 88cf e290 0800 4510 .....3.'......E.
0x0010: 0037 4863 4000 4006 d1bf ac10 6415 ac10 .7Hc@.@.....d...
0x0020: 6458 a4fe 0017 9901 0f98 de57 e8d3 8018 dX.........W....
0x0030: 00e5 915a 0000 0101 080a 429c e550 8e8b ...Z......B..P..
0x0040: f793 fffc 01 .....
18:25:01.022872 IP (tos 0x0, ttl 64, id 7979, offset 0, flags [DF], proto TCP (6), length 55)
172.16.100.88.23 > 172.16.100.21.42238: Flags [P.], cksum 0x91e2 (correct), seq 49:52, ack 83, win 91, options [nop,nop,TS val 2391537555 ecr 1117578576], length 3 [telnet WILL ECHO [|telnet]
0x0000: d027 88cf e290 0019 dbaf 9333 0800 4500 .'.........3..E.
0x0010: 0037 1f2b 4000 4006 fb07 ac10 6458 ac10 .7.+@.@.....dX..
0x0020: 6415 0017 a4fe de57 e8d3 9901 0f9b 8018 d......W........
0x0030: 005b 91e2 0000 0101 080a 8e8b f793 429c .[............B.
0x0040: e550 fffb 01 .P...
18:25:01.022935 IP (tos 0x10, ttl 64, id 18532, offset 0, flags [DF], proto TCP (6), length 55)
172.16.100.21.42238 > 172.16.100.88.23: Flags [P.], cksum 0x9153 (correct), seq 83:86, ack 52, win 229, options [nop,nop,TS val 1117578576 ecr 2391537555], length 3 [telnet DO ECHO [|telnet]
0x0000: 0019 dbaf 9333 d027 88cf e290 0800 4510 .....3.'......E.
0x0010: 0037 4864 4000 4006 d1be ac10 6415 ac10 .7Hd@.@.....d...
0x0020: 6458 a4fe 0017 9901 0f9b de57 e8d6 8018 dX.........W....
0x0030: 00e5 9153 0000 0101 080a 429c e550 8e8b ...S......B..P..
0x0040: f793 fffd 01 .....
18:25:01.023192 IP (tos 0x0, ttl 64, id 7980, offset 0, flags [DF], proto TCP (6), length 90)
172.16.100.88.23 > 172.16.100.21.42238: Flags [P.], cksum 0xc21e (correct), seq 52:90, ack 86, win 91, options [nop,nop,TS val 2391537555 ecr 1117578576], length 38
0x0000: d027 88cf e290 0019 dbaf 9333 0800 4500 .'.........3..E.
0x0010: 005a 1f2c 4000 4006 fae3 ac10 6458 ac10 .Z.,@.@.....dX..
0x0020: 6415 0017 a4fe de57 e8d6 9901 0f9e 8018 d......W........
0x0030: 005b c21e 0000 0101 080a 8e8b f793 429c .[............B.
0x0040: e550 4465 6269 616e 2047 4e55 2f4c 696e .PDebian.GNU/Lin
0x0050: 7578 2035 2e30 0d0a 6f70 656e 7465 7374 ux.5.0..opentest
0x0060: 206c 6f67 696e 3a20 .login:.
18:25:01.064717 IP (tos 0x10, ttl 64, id 18533, offset 0, flags [DF], proto TCP (6), length 52)
172.16.100.21.42238 > 172.16.100.88.23: Flags [.], cksum 0x9209 (correct), ack 90, win 229, options [nop,nop,TS val 1117578618 ecr 2391537555], length 0
0x0000: 0019 dbaf 9333 d027 88cf e290 0800 4510 .....3.'......E.
0x0010: 0034 4865 4000 4006 d1c0 ac10 6415 ac10 .4He@.@.....d...
0x0020: 6458 a4fe 0017 9901 0f9e de57 e8fc 8010 dX.........W....
0x0030: 00e5 9209 0000 0101 080a 429c e57a 8e8b ..........B..z..
0x0040: f793 ..
18:25:02.482343 IP (tos 0x10, ttl 64, id 18534, offset 0, flags [DF], proto TCP (6), length 53)
172.16.100.21.42238 > 172.16.100.88.23: Flags [P.], cksum 0x1977 (correct), seq 86:87, ack 90, win 229, options [nop,nop,TS val 1117580035 ecr 2391537555], length 1
0x0000: 0019 dbaf 9333 d027 88cf e290 0800 4510 .....3.'......E.
0x0010: 0035 4866 4000 4006 d1be ac10 6415 ac10 .5Hf@.@.....d...
0x0020: 6458 a4fe 0017 9901 0f9e de57 e8fc 8018 dX.........W....
0x0030: 00e5 1977 0000 0101 080a 429c eb03 8e8b ...w......B.....
0x0040: f793 73 ..s
18:25:02.482624 IP (tos 0x0, ttl 64, id 7981, offset 0, flags [DF], proto TCP (6), length 53)
172.16.100.88.23 > 172.16.100.21.42238: Flags [P.], cksum 0x1893 (correct), seq 90:91, ack 87, win 91, options [nop,nop,TS val 2391537920 ecr 1117580035], length 1
0x0000: d027 88cf e290 0019 dbaf 9333 0800 4500 .'.........3..E.
0x0010: 0035 1f2d 4000 4006 fb07 ac10 6458 ac10 .5.-@.@.....dX..
0x0020: 6415 0017 a4fe de57 e8fc 9901 0f9f 8018 d......W........
0x0030: 005b 1893 0000 0101 080a 8e8b f900 429c .[............B.
0x0040: eb03 73 ..s
18:25:02.482661 IP (tos 0x10, ttl 64, id 18535, offset 0, flags [DF], proto TCP (6), length 52)
172.16.100.21.42238 > 172.16.100.88.23: Flags [.], cksum 0x8b10 (correct), ack 91, win 229, options [nop,nop,TS val 1117580036 ecr 2391537920], length 0
0x0000: 0019 dbaf 9333 d027 88cf e290 0800 4510 .....3.'......E.
0x0010: 0034 4867 4000 4006 d1be ac10 6415 ac10 .4Hg@.@.....d...
0x0020: 6458 a4fe 0017 9901 0f9f de57 e8fd 8010 dX.........W....
0x0030: 00e5 8b10 0000 0101 080a 429c eb04 8e8b ..........B.....
0x0040: f900 ..
18:25:02.813082 IP (tos 0x10, ttl 64, id 18536, offset 0, flags [DF], proto TCP (6), length 53)
172.16.100.21.42238 > 172.16.100.88.23: Flags [P.], cksum 0x15bd (correct), seq 87:88, ack 91, win 229, options [nop,nop,TS val 1117580366 ecr 2391537920], length 1
0x0000: 0019 dbaf 9333 d027 88cf e290 0800 4510 .....3.'......E.
0x0010: 0035 4868 4000 4006 d1bc ac10 6415 ac10 .5Hh@.@.....d...
0x0020: 6458 a4fe 0017 9901 0f9f de57 e8fd 8018 dX.........W....
0x0030: 00e5 15bd 0000 0101 080a 429c ec4e 8e8b ..........B..N..
0x0040: f900 74 ..t
18:25:02.813378 IP (tos 0x0, ttl 64, id 7982, offset 0, flags [DF], proto TCP (6), length 53)
172.16.100.88.23 > 172.16.100.21.42238: Flags [P.], cksum 0x15f4 (correct), seq 91:92, ack 88, win 91, options [nop,nop,TS val 2391538002 ecr 1117580366], length 1
0x0000: d027 88cf e290 0019 dbaf 9333 0800 4500 .'.........3..E.
0x0010: 0035 1f2e 4000 4006 fb06 ac10 6458 ac10 .5..@.@.....dX..
0x0020: 6415 0017 a4fe de57 e8fd 9901 0fa0 8018 d......W........
0x0030: 005b 15f4 0000 0101 080a 8e8b f952 429c .[...........RB.
0x0040: ec4e 74 .Nt
18:25:02.813418 IP (tos 0x10, ttl 64, id 18537, offset 0, flags [DF], proto TCP (6), length 52)
172.16.100.21.42238 > 172.16.100.88.23: Flags [.], cksum 0x8971 (correct), ack 92, win 229, options [nop,nop,TS val 1117580367 ecr 2391538002], length 0
0x0000: 0019 dbaf 9333 d027 88cf e290 0800 4510 .....3.'......E.
0x0010: 0034 4869 4000 4006 d1bc ac10 6415 ac10 .4Hi@.@.....d...
0x0020: 6458 a4fe 0017 9901 0fa0 de57 e8fe 8010 dX.........W....
0x0030: 00e5 8971 0000 0101 080a 429c ec4f 8e8b ...q......B..O..
0x0040: f952 .R
18:25:03.058890 IP (tos 0x10, ttl 64, id 18538, offset 0, flags [DF], proto TCP (6), length 53)
172.16.100.21.42238 > 172.16.100.88.23: Flags [P.], cksum 0x1373 (correct), seq 88:89, ack 92, win 229, options [nop,nop,TS val 1117580612 ecr 2391538002], length 1
0x0000: 0019 dbaf 9333 d027 88cf e290 0800 4510 .....3.'......E.
0x0010: 0035 486a 4000 4006 d1ba ac10 6415 ac10 .5Hj@.@.....d...
0x0020: 6458 a4fe 0017 9901 0fa0 de57 e8fe 8018 dX.........W....
0x0030: 00e5 1373 0000 0101 080a 429c ed44 8e8b ...s......B..D..
0x0040: f952 75 .Ru
18:25:03.059123 IP (tos 0x0, ttl 64, id 7983, offset 0, flags [DF], proto TCP (6), length 53)
172.16.100.88.23 > 172.16.100.21.42238: Flags [P.], cksum 0x13be (correct), seq 92:93, ack 89, win 91, options [nop,nop,TS val 2391538064 ecr 1117580612], length 1
0x0000: d027 88cf e290 0019 dbaf 9333 0800 4500 .'.........3..E.
0x0010: 0035 1f2f 4000 4006 fb05 ac10 6458 ac10 .5./@.@.....dX..
0x0020: 6415 0017 a4fe de57 e8fe 9901 0fa1 8018 d......W........
0x0030: 005b 13be 0000 0101 080a 8e8b f990 429c .[............B.
0x0040: ed44 75 .Du
18:25:03.059162 IP (tos 0x10, ttl 64, id 18539, offset 0, flags [DF], proto TCP (6), length 52)
172.16.100.21.42238 > 172.16.100.88.23: Flags [.], cksum 0x883c (correct), ack 93, win 229, options [nop,nop,TS val 1117580612 ecr 2391538064], length 0
0x0000: 0019 dbaf 9333 d027 88cf e290 0800 4510 .....3.'......E.
0x0010: 0034 486b 4000 4006 d1ba ac10 6415 ac10 .4Hk@.@.....d...
0x0020: 6458 a4fe 0017 9901 0fa1 de57 e8ff 8010 dX.........W....
0x0030: 00e5 883c 0000 0101 080a 429c ed44 8e8b ...<......B..D..
0x0040: f990 ..
18:25:03.690119 IP (tos 0x10, ttl 64, id 18540, offset 0, flags [DF], proto TCP (6), length 53)
172.16.100.21.42238 > 172.16.100.88.23: Flags [P.], cksum 0x21bc (correct), seq 89:90, ack 93, win 229, options [nop,nop,TS val 1117581243 ecr 2391538064], length 1
0x0000: 0019 dbaf 9333 d027 88cf e290 0800 4510 .....3.'......E.
0x0010: 0035 486c 4000 4006 d1b8 ac10 6415 ac10 .5Hl@.@.....d...
0x0020: 6458 a4fe 0017 9901 0fa1 de57 e8ff 8018 dX.........W....
0x0030: 00e5 21bc 0000 0101 080a 429c efbb 8e8b ..!.......B.....
0x0040: f990 64 ..d
18:25:03.690410 IP (tos 0x0, ttl 64, id 7984, offset 0, flags [DF], proto TCP (6), length 53)
172.16.100.88.23 > 172.16.100.21.42238: Flags [P.], cksum 0x21a7 (correct), seq 93:94, ack 90, win 91, options [nop,nop,TS val 2391538222 ecr 1117581243], length 1
0x0000: d027 88cf e290 0019 dbaf 9333 0800 4500 .'.........3..E.
0x0010: 0035 1f30 4000 4006 fb04 ac10 6458 ac10 .5.0@.@.....dX..
0x0020: 6415 0017 a4fe de57 e8ff 9901 0fa2 8018 d......W........
0x0030: 005b 21a7 0000 0101 080a 8e8b fa2e 429c .[!...........B.
0x0040: efbb 64 ..d
18:25:03.690448 IP (tos 0x10, ttl 64, id 18541, offset 0, flags [DF], proto TCP (6), length 52)
172.16.100.21.42238 > 172.16.100.88.23: Flags [.], cksum 0x8524 (correct), ack 94, win 229, options [nop,nop,TS val 1117581244 ecr 2391538222], length 0
0x0000: 0019 dbaf 9333 d027 88cf e290 0800 4510 .....3.'......E.
0x0010: 0034 486d 4000 4006 d1b8 ac10 6415 ac10 .4Hm@.@.....d...
0x0020: 6458 a4fe 0017 9901 0fa2 de57 e900 8010 dX.........W....
0x0030: 00e5 8524 0000 0101 080a 429c efbc 8e8b ...$......B.....
0x0040: fa2e ..
18:25:03.862027 IP (tos 0x10, ttl 64, id 18542, offset 0, flags [DF], proto TCP (6), length 53)
172.16.100.21.42238 > 172.16.100.88.23: Flags [P.], cksum 0x1f70 (correct), seq 90:91, ack 94, win 229, options [nop,nop,TS val 1117581415 ecr 2391538222], length 1
0x0000: 0019 dbaf 9333 d027 88cf e290 0800 4510 .....3.'......E.
0x0010: 0035 486e 4000 4006 d1b6 ac10 6415 ac10 .5Hn@.@.....d...
0x0020: 6458 a4fe 0017 9901 0fa2 de57 e900 8018 dX.........W....
0x0030: 00e5 1f70 0000 0101 080a 429c f067 8e8b ...p......B..g..
0x0040: fa2e 65 ..e
18:25:03.862260 IP (tos 0x0, ttl 64, id 7985, offset 0, flags [DF], proto TCP (6), length 53)
172.16.100.88.23 > 172.16.100.21.42238: Flags [P.], cksum 0x1fce (correct), seq 94:95, ack 91, win 91, options [nop,nop,TS val 2391538265 ecr 1117581415], length 1
0x0000: d027 88cf e290 0019 dbaf 9333 0800 4500 .'.........3..E.
0x0010: 0035 1f31 4000 4006 fb03 ac10 6458 ac10 .5.1@.@.....dX..
0x0020: 6415 0017 a4fe de57 e900 9901 0fa3 8018 d......W........
0x0030: 005b 1fce 0000 0101 080a 8e8b fa59 429c .[...........YB.
0x0040: f067 65 .ge
18:25:03.862300 IP (tos 0x10, ttl 64, id 18543, offset 0, flags [DF], proto TCP (6), length 52)
172.16.100.21.42238 > 172.16.100.88.23: Flags [.], cksum 0x844c (correct), ack 95, win 229, options [nop,nop,TS val 1117581415 ecr 2391538265], length 0
0x0000: 0019 dbaf 9333 d027 88cf e290 0800 4510 .....3.'......E.
0x0010: 0034 486f 4000 4006 d1b6 ac10 6415 ac10 .4Ho@.@.....d...
0x0020: 6458 a4fe 0017 9901 0fa3 de57 e901 8010 dX.........W....
0x0030: 00e5 844c 0000 0101 080a 429c f067 8e8b ...L......B..g..
0x0040: fa59 .Y
18:25:04.390935 IP (tos 0x10, ttl 64, id 18544, offset 0, flags [DF], proto TCP (6), length 53)
172.16.100.21.42238 > 172.16.100.88.23: Flags [P.], cksum 0x1432 (correct), seq 91:92, ack 95, win 229, options [nop,nop,TS val 1117581944 ecr 2391538265], length 1
0x0000: 0019 dbaf 9333 d027 88cf e290 0800 4510 .....3.'......E.
0x0010: 0035 4870 4000 4006 d1b4 ac10 6415 ac10 .5Hp@.@.....d...
0x0020: 6458 a4fe 0017 9901 0fa3 de57 e901 8018 dX.........W....
0x0030: 00e5 1432 0000 0101 080a 429c f278 8e8b ...2......B..x..
0x0040: fa59 6e .Yn
18:25:04.391224 IP (tos 0x0, ttl 64, id 7986, offset 0, flags [DF], proto TCP (6), length 53)
172.16.100.88.23 > 172.16.100.21.42238: Flags [P.], cksum 0x1437 (correct), seq 95:96, ack 92, win 91, options [nop,nop,TS val 2391538397 ecr 1117581944], length 1
0x0000: d027 88cf e290 0019 dbaf 9333 0800 4500 .'.........3..E.
0x0010: 0035 1f32 4000 4006 fb02 ac10 6458 ac10 .5.2@.@.....dX..
0x0020: 6415 0017 a4fe de57 e901 9901 0fa4 8018 d......W........
0x0030: 005b 1437 0000 0101 080a 8e8b fadd 429c .[.7..........B.
0x0040: f278 6e .xn
18:25:04.391264 IP (tos 0x10, ttl 64, id 18545, offset 0, flags [DF], proto TCP (6), length 52)
172.16.100.21.42238 > 172.16.100.88.23: Flags [.], cksum 0x81b5 (correct), ack 96, win 229, options [nop,nop,TS val 1117581944 ecr 2391538397], length 0
0x0000: 0019 dbaf 9333 d027 88cf e290 0800 4510 .....3.'......E.
0x0010: 0034 4871 4000 4006 d1b4 ac10 6415 ac10 .4Hq@.@.....d...
0x0020: 6458 a4fe 0017 9901 0fa4 de57 e902 8010 dX.........W....
0x0030: 00e5 81b5 0000 0101 080a 429c f278 8e8b ..........B..x..
0x0040: fadd ..
18:25:04.758298 IP (tos 0x10, ttl 64, id 18546, offset 0, flags [DF], proto TCP (6), length 53)
172.16.100.21.42238 > 172.16.100.88.23: Flags [P.], cksum 0x0c3d (correct), seq 92:93, ack 96, win 229, options [nop,nop,TS val 1117582311 ecr 2391538397], length 1
0x0000: 0019 dbaf 9333 d027 88cf e290 0800 4510 .....3.'......E.
0x0010: 0035 4872 4000 4006 d1b2 ac10 6415 ac10 .5Hr@.@.....d...
0x0020: 6458 a4fe 0017 9901 0fa4 de57 e902 8018 dX.........W....
0x0030: 00e5 0c3d 0000 0101 080a 429c f3e7 8e8b ...=......B.....
0x0040: fadd 74 ..t
18:25:04.758555 IP (tos 0x0, ttl 64, id 7987, offset 0, flags [DF], proto TCP (6), length 53)
172.16.100.88.23 > 172.16.100.21.42238: Flags [P.], cksum 0x0c6a (correct), seq 96:97, ack 93, win 91, options [nop,nop,TS val 2391538489 ecr 1117582311], length 1
0x0000: d027 88cf e290 0019 dbaf 9333 0800 4500 .'.........3..E.
0x0010: 0035 1f33 4000 4006 fb01 ac10 6458 ac10 .5.3@.@.....dX..
0x0020: 6415 0017 a4fe de57 e902 9901 0fa5 8018 d......W........
0x0030: 005b 0c6a 0000 0101 080a 8e8b fb39 429c .[.j.........9B.
0x0040: f3e7 74 ..t
18:25:04.758586 IP (tos 0x10, ttl 64, id 18547, offset 0, flags [DF], proto TCP (6), length 52)
172.16.100.21.42238 > 172.16.100.88.23: Flags [.], cksum 0x7fe7 (correct), ack 97, win 229, options [nop,nop,TS val 1117582312 ecr 2391538489], length 0
0x0000: 0019 dbaf 9333 d027 88cf e290 0800 4510 .....3.'......E.
0x0010: 0034 4873 4000 4006 d1b2 ac10 6415 ac10 .4Hs@.@.....d...
0x0020: 6458 a4fe 0017 9901 0fa5 de57 e903 8010 dX.........W....
0x0030: 00e5 7fe7 0000 0101 080a 429c f3e8 8e8b ..........B.....
0x0040: fb39 .9
18:25:05.343788 IP (tos 0x10, ttl 64, id 18548, offset 0, flags [DF], proto TCP (6), length 53)
172.16.100.21.42238 > 172.16.100.88.23: Flags [P.], cksum 0x1e95 (correct), seq 93:94, ack 97, win 229, options [nop,nop,TS val 1117582897 ecr 2391538489], length 1
0x0000: 0019 dbaf 9333 d027 88cf e290 0800 4510 .....3.'......E.
0x0010: 0035 4874 4000 4006 d1b0 ac10 6415 ac10 .5Ht@.@.....d...
0x0020: 6458 a4fe 0017 9901 0fa5 de57 e903 8018 dX.........W....
0x0030: 00e5 1e95 0000 0101 080a 429c f631 8e8b ..........B..1..
0x0040: fb39 5f .9_
18:25:05.344040 IP (tos 0x0, ttl 64, id 7988, offset 0, flags [DF], proto TCP (6), length 53)
172.16.100.88.23 > 172.16.100.21.42238: Flags [P.], cksum 0x1e8c (correct), seq 97:98, ack 94, win 91, options [nop,nop,TS val 2391538635 ecr 1117582897], length 1
0x0000: d027 88cf e290 0019 dbaf 9333 0800 4500 .'.........3..E.
0x0010: 0035 1f34 4000 4006 fb00 ac10 6458 ac10 .5.4@.@.....dX..
0x0020: 6415 0017 a4fe de57 e903 9901 0fa6 8018 d......W........
0x0030: 005b 1e8c 0000 0101 080a 8e8b fbcb 429c .[............B.
0x0040: f631 5f .1_
18:25:05.344072 IP (tos 0x10, ttl 64, id 18549, offset 0, flags [DF], proto TCP (6), length 52)
172.16.100.21.42238 > 172.16.100.88.23: Flags [.], cksum 0x7d0a (correct), ack 98, win 229, options [nop,nop,TS val 1117582897 ecr 2391538635], length 0
0x0000: 0019 dbaf 9333 d027 88cf e290 0800 4510 .....3.'......E.
0x0010: 0034 4875 4000 4006 d1b0 ac10 6415 ac10 .4Hu@.@.....d...
0x0020: 6458 a4fe 0017 9901 0fa6 de57 e904 8010 dX.........W....
0x0030: 00e5 7d0a 0000 0101 080a 429c f631 8e8b ..}.......B..1..
0x0040: fbcb ..
18:25:06.144575 IP (tos 0x10, ttl 64, id 18550, offset 0, flags [DF], proto TCP (6), length 53)
172.16.100.21.42238 > 172.16.100.88.23: Flags [P.], cksum 0x49e0 (correct), seq 94:95, ack 98, win 229, options [nop,nop,TS val 1117583698 ecr 2391538635], length 1
0x0000: 0019 dbaf 9333 d027 88cf e290 0800 4510 .....3.'......E.
0x0010: 0035 4876 4000 4006 d1ae ac10 6415 ac10 .5Hv@.@.....d...
0x0020: 6458 a4fe 0017 9901 0fa6 de57 e904 8018 dX.........W....
0x0030: 00e5 49e0 0000 0101 080a 429c f952 8e8b ..I.......B..R..
0x0040: fbcb 30 ..0
18:25:06.144848 IP (tos 0x0, ttl 64, id 7989, offset 0, flags [DF], proto TCP (6), length 53)
172.16.100.88.23 > 172.16.100.21.42238: Flags [P.], cksum 0x49a1 (correct), seq 98:99, ack 95, win 91, options [nop,nop,TS val 2391538835 ecr 1117583698], length 1
0x0000: d027 88cf e290 0019 dbaf 9333 0800 4500 .'.........3..E.
0x0010: 0035 1f35 4000 4006 faff ac10 6458 ac10 .5.5@.@.....dX..
0x0020: 6415 0017 a4fe de57 e904 9901 0fa7 8018 d......W........
0x0030: 005b 49a1 0000 0101 080a 8e8b fc93 429c .[I...........B.
0x0040: f952 30 .R0
18:25:06.144879 IP (tos 0x10, ttl 64, id 18551, offset 0, flags [DF], proto TCP (6), length 52)
172.16.100.21.42238 > 172.16.100.88.23: Flags [.], cksum 0x791f (correct), ack 99, win 229, options [nop,nop,TS val 1117583698 ecr 2391538835], length 0
0x0000: 0019 dbaf 9333 d027 88cf e290 0800 4510 .....3.'......E.
0x0010: 0034 4877 4000 4006 d1ae ac10 6415 ac10 .4Hw@.@.....d...
0x0020: 6458 a4fe 0017 9901 0fa7 de57 e905 8010 dX.........W....
0x0030: 00e5 791f 0000 0101 080a 429c f952 8e8b ..y.......B..R..
0x0040: fc93 ..
18:25:06.310570 IP (tos 0x10, ttl 64, id 18552, offset 0, flags [DF], proto TCP (6), length 53)
172.16.100.21.42238 > 172.16.100.88.23: Flags [P.], cksum 0x4770 (correct), seq 95:96, ack 99, win 229, options [nop,nop,TS val 1117583864 ecr 2391538835], length 1
0x0000: 0019 dbaf 9333 d027 88cf e290 0800 4510 .....3.'......E.
0x0010: 0035 4878 4000 4006 d1ac ac10 6415 ac10 .5Hx@.@.....d...
0x0020: 6458 a4fe 0017 9901 0fa7 de57 e905 8018 dX.........W....
0x0030: 00e5 4770 0000 0101 080a 429c f9f8 8e8b ..Gp......B.....
0x0040: fc93 31 ..1
18:25:06.310806 IP (tos 0x0, ttl 64, id 7990, offset 0, flags [DF], proto TCP (6), length 53)
172.16.100.88.23 > 172.16.100.21.42238: Flags [P.], cksum 0x47cf (correct), seq 99:100, ack 96, win 91, options [nop,nop,TS val 2391538877 ecr 1117583864], length 1
0x0000: d027 88cf e290 0019 dbaf 9333 0800 4500 .'.........3..E.
0x0010: 0035 1f36 4000 4006 fafe ac10 6458 ac10 .5.6@.@.....dX..
0x0020: 6415 0017 a4fe de57 e905 9901 0fa8 8018 d......W........
0x0030: 005b 47cf 0000 0101 080a 8e8b fcbd 429c .[G...........B.
0x0040: f9f8 31 ..1
18:25:06.310837 IP (tos 0x10, ttl 64, id 18553, offset 0, flags [DF], proto TCP (6), length 52)
172.16.100.21.42238 > 172.16.100.88.23: Flags [.], cksum 0x784d (correct), ack 100, win 229, options [nop,nop,TS val 1117583864 ecr 2391538877], length 0
0x0000: 0019 dbaf 9333 d027 88cf e290 0800 4510 .....3.'......E.
0x0010: 0034 4879 4000 4006 d1ac ac10 6415 ac10 .4Hy@.@.....d...
0x0020: 6458 a4fe 0017 9901 0fa8 de57 e906 8010 dX.........W....
0x0030: 00e5 784d 0000 0101 080a 429c f9f8 8e8b ..xM......B.....
0x0040: fcbd ..
18:25:06.826001 IP (tos 0x10, ttl 64, id 18554, offset 0, flags [DF], proto TCP (6), length 54)
172.16.100.21.42238 > 172.16.100.88.23: Flags [P.], cksum 0x6940 (correct), seq 96:98, ack 100, win 229, options [nop,nop,TS val 1117584379 ecr 2391538877], length 2
0x0000: 0019 dbaf 9333 d027 88cf e290 0800 4510 .....3.'......E.
0x0010: 0036 487a 4000 4006 d1a9 ac10 6415 ac10 .6Hz@.@.....d...
0x0020: 6458 a4fe 0017 9901 0fa8 de57 e906 8018 dX.........W....
0x0030: 00e5 6940 0000 0101 080a 429c fbfb 8e8b ..i@......B.....
0x0040: fcbd 0d00 ....
18:25:06.827093 IP (tos 0x0, ttl 64, id 7991, offset 0, flags [DF], proto TCP (6), length 54)
172.16.100.88.23 > 172.16.100.21.42238: Flags [P.], cksum 0x693d (correct), seq 100:102, ack 98, win 91, options [nop,nop,TS val 2391539006 ecr 1117584379], length 2
0x0000: d027 88cf e290 0019 dbaf 9333 0800 4500 .'.........3..E.
0x0010: 0036 1f37 4000 4006 fafc ac10 6458 ac10 .6.7@.@.....dX..
0x0020: 6415 0017 a4fe de57 e906 9901 0faa 8018 d......W........
0x0030: 005b 693d 0000 0101 080a 8e8b fd3e 429c .[i=.........>B.
0x0040: fbfb 0d0a ....
18:25:06.827133 IP (tos 0x10, ttl 64, id 18555, offset 0, flags [DF], proto TCP (6), length 52)
172.16.100.21.42238 > 172.16.100.88.23: Flags [.], cksum 0x75c4 (correct), ack 102, win 229, options [nop,nop,TS val 1117584380 ecr 2391539006], length 0
0x0000: 0019 dbaf 9333 d027 88cf e290 0800 4510 .....3.'......E.
0x0010: 0034 487b 4000 4006 d1aa ac10 6415 ac10 .4H{@.@.....d...
0x0020: 6458 a4fe 0017 9901 0faa de57 e908 8010 dX.........W....
0x0030: 00e5 75c4 0000 0101 080a 429c fbfc 8e8b ..u.......B.....
0x0040: fd3e .>
18:25:06.827337 IP (tos 0x0, ttl 64, id 7992, offset 0, flags [DF], proto TCP (6), length 62)
172.16.100.88.23 > 172.16.100.21.42238: Flags [P.], cksum 0x8e73 (correct), seq 102:112, ack 98, win 91, options [nop,nop,TS val 2391539006 ecr 1117584380], length 10
0x0000: d027 88cf e290 0019 dbaf 9333 0800 4500 .'.........3..E.
0x0010: 003e 1f38 4000 4006 faf3 ac10 6458 ac10 .>.8@.@.....dX..
0x0020: 6415 0017 a4fe de57 e908 9901 0faa 8018 d......W........
0x0030: 005b 8e73 0000 0101 080a 8e8b fd3e 429c .[.s.........>B.
0x0040: fbfc 5061 7373 776f 7264 3a20 ..Password:.
18:25:06.827358 IP (tos 0x10, ttl 64, id 18556, offset 0, flags [DF], proto TCP (6), length 52)
172.16.100.21.42238 > 172.16.100.88.23: Flags [.], cksum 0x75b9 (correct), ack 112, win 229, options [nop,nop,TS val 1117584381 ecr 2391539006], length 0
0x0000: 0019 dbaf 9333 d027 88cf e290 0800 4510 .....3.'......E.
0x0010: 0034 487c 4000 4006 d1a9 ac10 6415 ac10 .4H|@.@.....d...
0x0020: 6458 a4fe 0017 9901 0faa de57 e912 8010 dX.........W....
0x0030: 00e5 75b9 0000 0101 080a 429c fbfd 8e8b ..u.......B.....
0x0040: fd3e .>
18:25:07.876378 IP (tos 0x10, ttl 64, id 18557, offset 0, flags [DF], proto TCP (6), length 53)
172.16.100.21.42238 > 172.16.100.88.23: Flags [P.], cksum 0xfe96 (correct), seq 98:99, ack 112, win 229, options [nop,nop,TS val 1117585430 ecr 2391539006], length 1
0x0000: 0019 dbaf 9333 d027 88cf e290 0800 4510 .....3.'......E.
0x0010: 0035 487d 4000 4006 d1a7 ac10 6415 ac10 .5H}@.@.....d...
0x0020: 6458 a4fe 0017 9901 0faa de57 e912 8018 dX.........W....
0x0030: 00e5 fe96 0000 0101 080a 429d 0016 8e8b ..........B.....
0x0040: fd3e 73 .>s
18:25:07.913895 IP (tos 0x0, ttl 64, id 7993, offset 0, flags [DF], proto TCP (6), length 52)
172.16.100.88.23 > 172.16.100.21.42238: Flags [.], cksum 0x7119 (correct), ack 99, win 91, options [nop,nop,TS val 2391539278 ecr 1117585430], length 0
0x0000: d027 88cf e290 0019 dbaf 9333 0800 4500 .'.........3..E.
0x0010: 0034 1f39 4000 4006 fafc ac10 6458 ac10 .4.9@.@.....dX..
0x0020: 6415 0017 a4fe de57 e912 9901 0fab 8010 d......W........
0x0030: 005b 7119 0000 0101 080a 8e8b fe4e 429d .[q..........NB.
0x0040: 0016 ..
18:25:08.249504 IP (tos 0x10, ttl 64, id 18558, offset 0, flags [DF], proto TCP (6), length 53)
172.16.100.21.42238 > 172.16.100.88.23: Flags [P.], cksum 0xfb10 (correct), seq 99:100, ack 112, win 229, options [nop,nop,TS val 1117585803 ecr 2391539278], length 1
0x0000: 0019 dbaf 9333 d027 88cf e290 0800 4510 .....3.'......E.
0x0010: 0035 487e 4000 4006 d1a6 ac10 6415 ac10 .5H~@.@.....d...
0x0020: 6458 a4fe 0017 9901 0fab de57 e912 8018 dX.........W....
0x0030: 00e5 fb10 0000 0101 080a 429d 018b 8e8b ..........B.....
0x0040: fe4e 74 .Nt
18:25:08.249706 IP (tos 0x0, ttl 64, id 7994, offset 0, flags [DF], proto TCP (6), length 52)
172.16.100.88.23 > 172.16.100.21.42238: Flags [.], cksum 0x6f50 (correct), ack 100, win 91, options [nop,nop,TS val 2391539361 ecr 1117585803], length 0
0x0000: d027 88cf e290 0019 dbaf 9333 0800 4500 .'.........3..E.
0x0010: 0034 1f3a 4000 4006 fafb ac10 6458 ac10 .4.:@.@.....dX..
0x0020: 6415 0017 a4fe de57 e912 9901 0fac 8010 d......W........
0x0030: 005b 6f50 0000 0101 080a 8e8b fea1 429d .[oP..........B.
0x0040: 018b ..
18:25:08.496178 IP (tos 0x10, ttl 64, id 18559, offset 0, flags [DF], proto TCP (6), length 53)
172.16.100.21.42238 > 172.16.100.88.23: Flags [P.], cksum 0xf8c6 (correct), seq 100:101, ack 112, win 229, options [nop,nop,TS val 1117586049 ecr 2391539361], length 1
0x0000: 0019 dbaf 9333 d027 88cf e290 0800 4510 .....3.'......E.
0x0010: 0035 487f 4000 4006 d1a5 ac10 6415 ac10 .5H.@.@.....d...
0x0020: 6458 a4fe 0017 9901 0fac de57 e912 8018 dX.........W....
0x0030: 00e5 f8c6 0000 0101 080a 429d 0281 8e8b ..........B.....
0x0040: fea1 75 ..u
18:25:08.496387 IP (tos 0x0, ttl 64, id 7995, offset 0, flags [DF], proto TCP (6), length 52)
172.16.100.88.23 > 172.16.100.21.42238: Flags [.], cksum 0x6e1b (correct), ack 101, win 91, options [nop,nop,TS val 2391539423 ecr 1117586049], length 0
0x0000: d027 88cf e290 0019 dbaf 9333 0800 4500 .'.........3..E.
0x0010: 0034 1f3b 4000 4006 fafa ac10 6458 ac10 .4.;@.@.....dX..
0x0020: 6415 0017 a4fe de57 e912 9901 0fad 8010 d......W........
0x0030: 005b 6e1b 0000 0101 080a 8e8b fedf 429d .[n...........B.
0x0040: 0281 ..
18:25:08.962818 IP (tos 0x10, ttl 64, id 18560, offset 0, flags [DF], proto TCP (6), length 53)
172.16.100.21.42238 > 172.16.100.88.23: Flags [P.], cksum 0x07b5 (correct), seq 101:102, ack 112, win 229, options [nop,nop,TS val 1117586516 ecr 2391539423], length 1
0x0000: 0019 dbaf 9333 d027 88cf e290 0800 4510 .....3.'......E.
0x0010: 0035 4880 4000 4006 d1a4 ac10 6415 ac10 .5H.@.@.....d...
0x0020: 6458 a4fe 0017 9901 0fad de57 e912 8018 dX.........W....
0x0030: 00e5 07b5 0000 0101 080a 429d 0454 8e8b ..........B..T..
0x0040: fedf 64 ..d
18:25:08.963052 IP (tos 0x0, ttl 64, id 7996, offset 0, flags [DF], proto TCP (6), length 52)
172.16.100.88.23 > 172.16.100.21.42238: Flags [.], cksum 0x6bd2 (correct), ack 102, win 91, options [nop,nop,TS val 2391539540 ecr 1117586516], length 0
0x0000: d027 88cf e290 0019 dbaf 9333 0800 4500 .'.........3..E.
0x0010: 0034 1f3c 4000 4006 faf9 ac10 6458 ac10 .4.<@.@.....dX..
0x0020: 6415 0017 a4fe de57 e912 9901 0fae 8010 d......W........
0x0030: 005b 6bd2 0000 0101 080a 8e8b ff54 429d .[k..........TB.
0x0040: 0454 .T
18:25:09.161325 IP (tos 0x10, ttl 64, id 18561, offset 0, flags [DF], proto TCP (6), length 53)
172.16.100.21.42238 > 172.16.100.88.23: Flags [P.], cksum 0x0578 (correct), seq 102:103, ack 112, win 229, options [nop,nop,TS val 1117586715 ecr 2391539540], length 1
0x0000: 0019 dbaf 9333 d027 88cf e290 0800 4510 .....3.'......E.
0x0010: 0035 4881 4000 4006 d1a3 ac10 6415 ac10 .5H.@.@.....d...
0x0020: 6458 a4fe 0017 9901 0fae de57 e912 8018 dX.........W....
0x0030: 00e5 0578 0000 0101 080a 429d 051b 8e8b ...x......B.....
0x0040: ff54 65 .Te
18:25:09.161523 IP (tos 0x0, ttl 64, id 7997, offset 0, flags [DF], proto TCP (6), length 52)
172.16.100.88.23 > 172.16.100.21.42238: Flags [.], cksum 0x6ad9 (correct), ack 103, win 91, options [nop,nop,TS val 2391539589 ecr 1117586715], length 0
0x0000: d027 88cf e290 0019 dbaf 9333 0800 4500 .'.........3..E.
0x0010: 0034 1f3d 4000 4006 faf8 ac10 6458 ac10 .4.=@.@.....dX..
0x0020: 6415 0017 a4fe de57 e912 9901 0faf 8010 d......W........
0x0030: 005b 6ad9 0000 0101 080a 8e8b ff85 429d .[j...........B.
0x0040: 051b ..
18:25:10.380781 IP (tos 0x10, ttl 64, id 18562, offset 0, flags [DF], proto TCP (6), length 53)
172.16.100.21.42238 > 172.16.100.88.23: Flags [P.], cksum 0xf782 (correct), seq 103:104, ack 112, win 229, options [nop,nop,TS val 1117587934 ecr 2391539589], length 1
0x0000: 0019 dbaf 9333 d027 88cf e290 0800 4510 .....3.'......E.
0x0010: 0035 4882 4000 4006 d1a2 ac10 6415 ac10 .5H.@.@.....d...
0x0020: 6458 a4fe 0017 9901 0faf de57 e912 8018 dX.........W....
0x0030: 00e5 f782 0000 0101 080a 429d 09de 8e8b ..........B.....
0x0040: ff85 6e ..n
18:25:10.381009 IP (tos 0x0, ttl 64, id 7998, offset 0, flags [DF], proto TCP (6), length 52)
172.16.100.88.23 > 172.16.100.21.42238: Flags [.], cksum 0x64e4 (correct), ack 104, win 91, options [nop,nop,TS val 2391539894 ecr 1117587934], length 0
0x0000: d027 88cf e290 0019 dbaf 9333 0800 4500 .'.........3..E.
0x0010: 0034 1f3e 4000 4006 faf7 ac10 6458 ac10 .4.>@.@.....dX..
0x0020: 6415 0017 a4fe de57 e912 9901 0fb0 8010 d......W........
0x0030: 005b 64e4 0000 0101 080a 8e8c 00b6 429d .[d...........B.
0x0040: 09de ..
18:25:10.666126 IP (tos 0x10, ttl 64, id 18563, offset 0, flags [DF], proto TCP (6), length 53)
172.16.100.21.42238 > 172.16.100.88.23: Flags [P.], cksum 0xef33 (correct), seq 104:105, ack 112, win 229, options [nop,nop,TS val 1117588219 ecr 2391539894], length 1
0x0000: 0019 dbaf 9333 d027 88cf e290 0800 4510 .....3.'......E.
0x0010: 0035 4883 4000 4006 d1a1 ac10 6415 ac10 .5H.@.@.....d...
0x0020: 6458 a4fe 0017 9901 0fb0 de57 e912 8018 dX.........W....
0x0030: 00e5 ef33 0000 0101 080a 429d 0afb 8e8c ...3......B.....
0x0040: 00b6 74 ..t
18:25:10.666350 IP (tos 0x0, ttl 64, id 7999, offset 0, flags [DF], proto TCP (6), length 52)
172.16.100.88.23 > 172.16.100.21.42238: Flags [.], cksum 0x637e (correct), ack 105, win 91, options [nop,nop,TS val 2391539966 ecr 1117588219], length 0
0x0000: d027 88cf e290 0019 dbaf 9333 0800 4500 .'.........3..E.
0x0010: 0034 1f3f 4000 4006 faf6 ac10 6458 ac10 .4.?@.@.....dX..
0x0020: 6415 0017 a4fe de57 e912 9901 0fb1 8010 d......W........
0x0030: 005b 637e 0000 0101 080a 8e8c 00fe 429d .[c~..........B.
0x0040: 0afb ..
18:25:11.033737 IP (tos 0x10, ttl 64, id 18564, offset 0, flags [DF], proto TCP (6), length 54)
172.16.100.21.42238 > 172.16.100.88.23: Flags [P.], cksum 0x547a (correct), seq 105:107, ack 112, win 229, options [nop,nop,TS val 1117588587 ecr 2391539966], length 2
0x0000: 0019 dbaf 9333 d027 88cf e290 0800 4510 .....3.'......E.
0x0010: 0036 4884 4000 4006 d19f ac10 6415 ac10 .6H.@.@.....d...
0x0020: 6458 a4fe 0017 9901 0fb1 de57 e912 8018 dX.........W....
0x0030: 00e5 547a 0000 0101 080a 429d 0c6b 8e8c ..Tz......B..k..
0x0040: 00fe 0d00 ....
18:25:11.033951 IP (tos 0x0, ttl 64, id 8000, offset 0, flags [DF], proto TCP (6), length 52)
172.16.100.88.23 > 172.16.100.21.42238: Flags [.], cksum 0x61b0 (correct), ack 107, win 91, options [nop,nop,TS val 2391540058 ecr 1117588587], length 0
0x0000: d027 88cf e290 0019 dbaf 9333 0800 4500 .'.........3..E.
0x0010: 0034 1f40 4000 4006 faf5 ac10 6458 ac10 .4.@@.@.....dX..
0x0020: 6415 0017 a4fe de57 e912 9901 0fb3 8010 d......W........
0x0030: 005b 61b0 0000 0101 080a 8e8c 015a 429d .[a..........ZB.
0x0040: 0c6b .k
18:25:11.042714 IP (tos 0x0, ttl 64, id 8001, offset 0, flags [DF], proto TCP (6), length 54)
172.16.100.88.23 > 172.16.100.21.42238: Flags [P.], cksum 0x549a (correct), seq 112:114, ack 107, win 91, options [nop,nop,TS val 2391540060 ecr 1117588587], length 2
0x0000: d027 88cf e290 0019 dbaf 9333 0800 4500 .'.........3..E.
0x0010: 0036 1f41 4000 4006 faf2 ac10 6458 ac10 .6.A@.@.....dX..
0x0020: 6415 0017 a4fe de57 e912 9901 0fb3 8018 d......W........
0x0030: 005b 549a 0000 0101 080a 8e8c 015c 429d .[T..........\B.
0x0040: 0c6b 0d0a .k..
18:25:11.042751 IP (tos 0x10, ttl 64, id 18565, offset 0, flags [DF], proto TCP (6), length 52)
172.16.100.21.42238 > 172.16.100.88.23: Flags [.], cksum 0x6119 (correct), ack 114, win 229, options [nop,nop,TS val 1117588596 ecr 2391540060], length 0
0x0000: 0019 dbaf 9333 d027 88cf e290 0800 4510 .....3.'......E.
0x0010: 0034 4885 4000 4006 d1a0 ac10 6415 ac10 .4H.@.@.....d...
0x0020: 6458 a4fe 0017 9901 0fb3 de57 e914 8010 dX.........W....
0x0030: 00e5 6119 0000 0101 080a 429d 0c74 8e8c ..a.......B..t..
0x0040: 015c .\
18:25:11.043157 IP (tos 0x0, ttl 64, id 8002, offset 0, flags [DF], proto TCP (6), length 523)
172.16.100.88.23 > 172.16.100.21.42238: Flags [P.], cksum 0x7dc4 (correct), seq 114:585, ack 107, win 91, options [nop,nop,TS val 2391540060 ecr 1117588596], length 471
0x0000: d027 88cf e290 0019 dbaf 9333 0800 4500 .'.........3..E.
0x0010: 020b 1f42 4000 4006 f91c ac10 6458 ac10 ...B@.@.....dX..
0x0020: 6415 0017 a4fe de57 e914 9901 0fb3 8018 d......W........
0x0030: 005b 7dc4 0000 0101 080a 8e8c 015c 429d .[}..........\B.
0x0040: 0c74 4c61 7374 206c 6f67 696e 3a20 5468 .tLast.login:.Th
0x0050: 7520 4f63 7420 3134 2031 383a 3533 3a33 u.Oct.14.18:53:3
0x0060: 3220 4d53 4b20 3230 3231 2066 726f 6d20 2.MSK.2021.from.
0x0070: 3137 322e 3136 2e31 3030 2e32 3120 6f6e 172.16.100.21.on
0x0080: 2070 7473 2f33 0d0a 4c69 6e75 7820 6f70 .pts/3..Linux.op
0x0090: 656e 7465 7374 2032 2e36 2e32 362d 322d entest.2.6.26-2-
0x00a0: 3638 3620 2331 2053 4d50 2053 756e 204d 686.#1.SMP.Sun.M
0x00b0: 6172 2034 2032 323a 3139 3a31 3920 5554 ar.4.22:19:19.UT
0x00c0: 4320 3230 3132 2069 3638 360d 0a0d 0a54 C.2012.i686....T
0x00d0: 6865 2070 726f 6772 616d 7320 696e 636c he.programs.incl
0x00e0: 7564 6564 2077 6974 6820 7468 6520 4465 uded.with.the.De
0x00f0: 6269 616e 2047 4e55 2f4c 696e 7578 2073 bian.GNU/Linux.s
0x0100: 7973 7465 6d20 6172 6520 6672 6565 2073 ystem.are.free.s
0x0110: 6f66 7477 6172 653b 0d0a 7468 6520 6578 oftware;..the.ex
0x0120: 6163 7420 6469 7374 7269 6275 7469 6f6e act.distribution
0x0130: 2074 6572 6d73 2066 6f72 2065 6163 6820 .terms.for.each.
0x0140: 7072 6f67 7261 6d20 6172 6520 6465 7363 program.are.desc
0x0150: 7269 6265 6420 696e 2074 6865 0d0a 696e ribed.in.the..in
0x0160: 6469 7669 6475 616c 2066 696c 6573 2069 dividual.files.i
0x0170: 6e20 2f75 7372 2f73 6861 7265 2f64 6f63 n./usr/share/doc
0x0180: 2f2a 2f63 6f70 7972 6967 6874 2e0d 0a0d /*/copyright....
0x0190: 0a44 6562 6961 6e20 474e 552f 4c69 6e75 .Debian.GNU/Linu
0x01a0: 7820 636f 6d65 7320 7769 7468 2041 4253 x.comes.with.ABS
0x01b0: 4f4c 5554 454c 5920 4e4f 2057 4152 5241 OLUTELY.NO.WARRA
0x01c0: 4e54 592c 2074 6f20 7468 6520 6578 7465 NTY,.to.the.exte
0x01d0: 6e74 0d0a 7065 726d 6974 7465 6420 6279 nt..permitted.by
0x01e0: 2061 7070 6c69 6361 626c 6520 6c61 772e .applicable.law.
0x01f0: 0d0a 596f 7520 6861 7665 206d 6169 6c2e ..You.have.mail.
0x0200: 0d0a 7374 7564 656e 745f 3031 406f 7065 ..student_01@ope
0x0210: 6e74 6573 743a 7e24 20 ntest:~$.
18:25:11.043194 IP (tos 0x10, ttl 64, id 18566, offset 0, flags [DF], proto TCP (6), length 52)
172.16.100.21.42238 > 172.16.100.88.23: Flags [.], cksum 0x5f3a (correct), ack 585, win 237, options [nop,nop,TS val 1117588596 ecr 2391540060], length 0
0x0000: 0019 dbaf 9333 d027 88cf e290 0800 4510 .....3.'......E.
0x0010: 0034 4886 4000 4006 d19f ac10 6415 ac10 .4H.@.@.....d...
0x0020: 6458 a4fe 0017 9901 0fb3 de57 eaeb 8010 dX.........W....
0x0030: 00ed 5f3a 0000 0101 080a 429d 0c74 8e8c .._:......B..t..
0x0040: 015c .\
4. Подключившись к удаленной системе, ввести пароль stud и выполнить команду uname -a, выведя тем самым информацию об удаленной системе. Для разрыва соединения использовать команду logout.
5. В окне сетевого монитора отметить пакеты, инициирующие разрыв сессии telnet. Прервать фильтрацию пакетов сетевым анализатором tcpdump, воспользовавшись комбинацией Ctrl-C. В файле telnet.log выделить записи установления и разрыва соединения с сервером telnet.
tcpdump: listening on enp2s0, link-type EN10MB (Ethernet), capture size 262144 bytes