From f1d1e349b078311261fca50f8545e97120f98239 Mon Sep 17 00:00:00 2001 From: Peter Gerwinski <peter.gerwinski@hs-bochum.de> Date: Thu, 2 Nov 2023 16:52:35 +0100 Subject: [PATCH] Beispiele und Screenshots 2.11.2023 --- 20231102/dbs-20231102.pdf | Bin 150166 -> 149523 bytes 20231102/dbs-20231102.tex | 4 +- 20231102/hello-01 | 3 + 20231102/hello-02 | 5 + 20231102/http-01.txt | 37 +++++++ 20231102/routing-01.txt | 25 +++++ 20231102/routing-02.txt | 9 ++ 20231102/routing-03.txt | 28 ++++++ 20231102/services-01.txt | 14 +++ 20231102/services-02.txt | 18 ++++ 20231102/smtp-01.txt | 26 +++++ 20231102/smtp-02.txt | 23 +++++ 20231102/smtp-03.txt | 19 ++++ 20231102/smtp-04.txt | 34 +++++++ 20231102/smtp-05.txt | 11 +++ 20231102/ssh-01.txt | 22 +++++ 20231102/ssh-02.txt | 17 ++++ 20231102/tcpdump-01.txt | 21 ++++ 20231102/tcpdump-02.txt | 93 ++++++++++++++++++ 20231102/tcpdump-03.txt | 38 ++++++++ 20231102/tcpdump-04.txt | 35 +++++++ 20231102/test.mbox | 197 ++++++++++++++++++++++++++++++++++++++ 22 files changed, 676 insertions(+), 3 deletions(-) create mode 100755 20231102/hello-01 create mode 100755 20231102/hello-02 create mode 100644 20231102/http-01.txt create mode 100644 20231102/routing-01.txt create mode 100644 20231102/routing-02.txt create mode 100644 20231102/routing-03.txt create mode 100644 20231102/services-01.txt create mode 100644 20231102/services-02.txt create mode 100644 20231102/smtp-01.txt create mode 100644 20231102/smtp-02.txt create mode 100644 20231102/smtp-03.txt create mode 100644 20231102/smtp-04.txt create mode 100644 20231102/smtp-05.txt create mode 100644 20231102/ssh-01.txt create mode 100644 20231102/ssh-02.txt create mode 100644 20231102/tcpdump-01.txt create mode 100644 20231102/tcpdump-02.txt create mode 100644 20231102/tcpdump-03.txt create mode 100644 20231102/tcpdump-04.txt create mode 100644 20231102/test.mbox diff --git a/20231102/dbs-20231102.pdf b/20231102/dbs-20231102.pdf index 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zQ*C>$elB2Kcc3Z6PLg~21EV_)t}BZy#MT`$-NCm#(R0=8?yITwJ2<!hI90Jt$#lKj zR<7~~>n1I<w<&IVIjQLGMWIyn1AYy2!`}!V@3|5#8{M(iJx95IrO6KyF{MQ;mpSKz zd;FXg(cv@6Mcp}0wfCRB;|?39<JsTYR!lv1@0ixi5~G(BSG#4}xIJt+JzL>l!pHoa ziE3s^TSYr&3froC+*9=Z+f#qlPocmsZq7{Wg@sO!TaHyPoq6`g9re4>-K*lOzSyi{ zd>I@X(tPQeSBSIMt!X}<>FXTI0~_z$XR@_Vn%ZH-_^mSG*|{@w4Sp~g<fY&7<Es&z zvBfwu{gNMF4d=9}U)GD;)mdf#XHX65SK>;|ODQfXN=?iKvGS9$xQa^>r~h|n;^ek8 OvNYjRRdw}u;{pJA=eAS; diff --git a/20231102/dbs-20231102.tex b/20231102/dbs-20231102.tex index dcef6fc..23f2fbe 100644 --- a/20231102/dbs-20231102.tex +++ b/20231102/dbs-20231102.tex @@ -529,9 +529,7 @@ \vbitno{64}\databitbox{32}{data} \end{center} -\end{frame} - -\begin{frame} + \bigskip ICMP-Paket: transportiert Steuernachrichten diff --git a/20231102/hello-01 b/20231102/hello-01 new file mode 100755 index 0000000..9f3f770 --- /dev/null +++ b/20231102/hello-01 @@ -0,0 +1,3 @@ +#!/bin/bash + +echo "Hello, world!" diff --git a/20231102/hello-02 b/20231102/hello-02 new file mode 100755 index 0000000..12df31d --- /dev/null +++ b/20231102/hello-02 @@ -0,0 +1,5 @@ +#!/bin/bash + +echo -n "Name: " +read name +echo "Hallo, $name!" diff --git a/20231102/http-01.txt b/20231102/http-01.txt new file mode 100644 index 0000000..7eae906 --- /dev/null +++ b/20231102/http-01.txt @@ -0,0 +1,37 @@ +cassini/home/peter/bo/2023ws/dbs/20231102> nc 88.198.170.60 80 +GET / +HTTP/1.1 400 Bad Request +Date: Thu, 02 Nov 2023 10:54:35 GMT +Server: Apache/2.4.56 (Debian) +Content-Length: 308 +Connection: close +Content-Type: text/html; charset=iso-8859-1 + +<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN"> +<html><head> +<title>400 Bad Request</title> +</head><body> +<h1>Bad Request</h1> +<p>Your browser sent a request that this server could not understand.<br /> +</p> +<hr> +<address>Apache/2.4.56 (Debian) Server at m31.gerwinski.de Port 80</address> +</body></html> +cassini/home/peter/bo/2023ws/dbs/20231102> nc 88.198.170.60 80 +GET /^M +<!doctype html public "-//W3C//DTD HTML 4.0 Transitional//EN"> +<html> + <head> + <title>ngc224.gerwinski.de</title> + </head> + <body background="ngc224.jpg" bgcolor="#000000" text="#CFCFCF" + link="#7F7FFF" alink="#CFCFFF" vlink="#FF5FFF"> + <h1>ngc224.gerwinski.de - der Server</h1> + <p>Benannt nach der Andromeda-Galaxie - M31 - NGC224 + <p align="center"><img src="null.png" alt="" width="1" height="1" vspace="360"> + <p><font size="-2"><a href="http://www.peter.gerwinski.de">Peter Gerwinski</a><br> + <a href="http://www.noao.edu/image_gallery/html/im0424.html">Bild: + Bill Schoening, Vanessa Harvey/REU program/NOAO/AURA/NSF</a></font> + </body> +</html> +cassini/home/peter/bo/2023ws/dbs/20231102> diff --git a/20231102/routing-01.txt b/20231102/routing-01.txt new file mode 100644 index 0000000..647b3f7 --- /dev/null +++ b/20231102/routing-01.txt @@ -0,0 +1,25 @@ +cassini/home/peter/bo/2023ws/dbs/20231102> /sbin/route -n +Kernel-IP-Routentabelle +Ziel Router Genmask Flags Metric Ref Use Iface +0.0.0.0 10.128.29.1 0.0.0.0 UG 0 0 0 wlan0 +10.128.29.0 0.0.0.0 255.255.255.0 U 0 0 0 wlan0 +cassini/home/peter/bo/2023ws/dbs/20231102> /sbin/ifconfig +lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536 + inet 127.0.0.1 netmask 255.0.0.0 + inet6 ::1 prefixlen 128 scopeid 0x10<host> + loop txqueuelen 1000 (Lokale Schleife) + RX packets 2141231 bytes 2409535237 (2.2 GiB) + RX errors 0 dropped 0 overruns 0 frame 0 + TX packets 2141231 bytes 2409535237 (2.2 GiB) + TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 + +wlan0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 + inet 10.128.29.120 netmask 255.255.255.0 broadcast 10.128.29.255 + inet6 fe80::c685:8ff:fe4a:5042 prefixlen 64 scopeid 0x20<link> + ether c4:85:08:4a:50:42 txqueuelen 1000 (Ethernet) + RX packets 2051475 bytes 905394925 (863.4 MiB) + RX errors 0 dropped 0 overruns 0 frame 0 + TX packets 4252967 bytes 2323112955 (2.1 GiB) + TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 + +cassini/home/peter/bo/2023ws/dbs/20231102> diff --git a/20231102/routing-02.txt b/20231102/routing-02.txt new file mode 100644 index 0000000..043e1d4 --- /dev/null +++ b/20231102/routing-02.txt @@ -0,0 +1,9 @@ +cassini/home/peter/bo/2023ws/dbs/20231102> ip route +default via 10.128.29.1 dev wlan0 +10.128.29.0/24 dev wlan0 proto kernel scope link src 10.128.29.120 +cassini/home/peter/bo/2023ws/dbs/20231102> /sbin/route -n +Kernel-IP-Routentabelle +Ziel Router Genmask Flags Metric Ref Use Iface +0.0.0.0 10.128.29.1 0.0.0.0 UG 0 0 0 wlan0 +10.128.29.0 0.0.0.0 255.255.255.0 U 0 0 0 wlan0 +cassini/home/peter/bo/2023ws/dbs/20231102> diff --git a/20231102/routing-03.txt b/20231102/routing-03.txt new file mode 100644 index 0000000..24cfe12 --- /dev/null +++ b/20231102/routing-03.txt @@ -0,0 +1,28 @@ +cassini/home/peter/bo/2023ws/dbs/20231102> /sbin/route -n +Kernel-IP-Routentabelle +Ziel Router Genmask Flags Metric Ref Use Iface +0.0.0.0 10.128.29.1 0.0.0.0 UG 0 0 0 wlan0 +10.128.29.0 0.0.0.0 255.255.255.0 U 0 0 0 wlan0 +cassini/home/peter/bo/2023ws/dbs/20231102> traceroute -n 88.198.170.60 +traceroute to 88.198.170.60 (88.198.170.60), 30 hops max, 60 byte packets + 1 10.128.29.1 2.345 ms 2.854 ms 2.848 ms + 2 * * * + 3 188.1.231.93 4.512 ms 4.727 ms 5.389 ms + 4 188.1.144.178 10.100 ms 10.073 ms 10.072 ms + 5 188.1.242.10 9.438 ms 9.111 ms 11.022 ms + 6 213.239.224.69 15.161 ms 13.278 ms 213.239.224.85 12.722 ms + 7 213.239.229.62 12.697 ms 13.011 ms 213.239.229.58 12.491 ms + 8 144.76.104.6 12.759 ms 12.650 ms 16.253 ms + 9 144.76.104.6 15.634 ms 12.525 ms 12.840 ms +cassini/home/peter/bo/2023ws/dbs/20231102> traceroute 88.198.170.60 +traceroute to 88.198.170.60 (88.198.170.60), 30 hops max, 60 byte packets + 1 _gateway (10.128.29.1) 2.266 ms 2.802 ms 2.782 ms + 2 * * * + 3 cr-dui1-pwether10722.x-win.dfn.de (188.1.231.93) 5.425 ms 4.740 ms 5.416 ms + 4 cr-fra2-be16.x-win.dfn.de (188.1.144.178) 9.844 ms 9.828 ms 8.831 ms + 5 kr-fra307.x-win.dfn.de (188.1.242.10) 9.796 ms 9.782 ms 9.765 ms + 6 core23.fsn1.hetzner.com (213.239.224.69) 13.576 ms core22.fsn1.hetzner.com (213.239.224.13) 12.551 ms core21.fsn1.hetzner.com (213.239.224.101) 12.231 ms + 7 ex9k2.dc10.fsn1.hetzner.com (213.239.229.58) 12.722 ms static.213-239-254-86.clients.your-server.de (213.239.254.86) 16.846 ms ex9k2.dc10.fsn1.hetzner.com (213.239.229.62) 17.091 ms + 8 static.6.104.76.144.clients.your-server.de (144.76.104.6) 17.633 ms 14.226 ms 13.191 ms + 9 static.6.104.76.144.clients.your-server.de (144.76.104.6) 13.144 ms * 15.826 ms +cassini/home/peter/bo/2023ws/dbs/20231102> diff --git a/20231102/services-01.txt b/20231102/services-01.txt new file mode 100644 index 0000000..b1597ee --- /dev/null +++ b/20231102/services-01.txt @@ -0,0 +1,14 @@ +cassini/home/peter/bo/2023ws/dbs/20231102> cat hello-01 +#!/bin/bash + +echo "Hello, world!" +cassini/home/peter/bo/2023ws/dbs/20231102> chmod +x hello-01 +cassini/home/peter/bo/2023ws/dbs/20231102> ./hello-01 +Hello, world! +cassini/home/peter/bo/2023ws/dbs/20231102> nc -p 1234 -l -c ./hello-01 +cassini/home/peter/bo/2023ws/dbs/20231102> + +8< --------------------------------------------------------------------- + +cassini/home/peter> nc 127.0.0.1 1234 +Hello, world! diff --git a/20231102/services-02.txt b/20231102/services-02.txt new file mode 100644 index 0000000..15858e8 --- /dev/null +++ b/20231102/services-02.txt @@ -0,0 +1,18 @@ +cassini/home/peter/bo/2023ws/dbs/20231102> cat hello-02 +#!/bin/bash + +echo -n "Name: " +read name +echo "Hallo, $name!" +cassini/home/peter/bo/2023ws/dbs/20231102> ./hello-02 +Name: Peter +Hallo, Peter! +cassini/home/peter/bo/2023ws/dbs/20231102> nc -p 1234 -l -c ./hello-02 +cassini/home/peter/bo/2023ws/dbs/20231102> + +8< --------------------------------------------------------------------- + +cassini/home/peter> nc 127.0.0.1 1234 +Name: Peter +Hallo, Peter! +cassini/home/peter> diff --git a/20231102/smtp-01.txt b/20231102/smtp-01.txt new file mode 100644 index 0000000..64ffee4 --- /dev/null +++ b/20231102/smtp-01.txt @@ -0,0 +1,26 @@ +cassini/home/peter/bo/2023ws/dbs/20231102> nc 88.198.170.60 25 +220 mx1.gerwinski.de ESMTP Exim 4.94.2 Thu, 02 Nov 2023 11:24:26 +0100 +Hallo? +500 unrecognized command +HELO cassini +250 mx1.gerwinski.de Hello cassini [195.37.15.82] +MAIL FROM: <peter.gerwinski@hs-bochum.de> +250 OK +RCPT TO: <peter@gerwinski.de> +250 Accepted +DATA +354 Enter message, ending with "." on a line by itself +From: Prof. Dr. rer. nat. Peter Gerwinski <peter.gerwinski@hs-bochum.de> +To: Peter Gerwinski <peter@gerwinski.de> +Subject: Test + +Hallo, + +dies ist ein Test. + +Schöne Grüße! +. +250 OK id=1qyUuM-00GWUO-5J +QUIT +221 mx1.gerwinski.de closing connection +cassini/home/peter/bo/2023ws/dbs/20231102> diff --git a/20231102/smtp-02.txt b/20231102/smtp-02.txt new file mode 100644 index 0000000..beb1e6c --- /dev/null +++ b/20231102/smtp-02.txt @@ -0,0 +1,23 @@ +cassini/home/peter/bo/2023ws/dbs/20231102> nc 88.198.170.60 25 +220 mx1.gerwinski.de ESMTP Exim 4.94.2 Thu, 02 Nov 2023 11:36:40 +0100 +HELO cassini +250 mx1.gerwinski.de Hello cassini [195.37.15.82] +MAIL FROM: <peter.gerwinski@hs-bochum.de> +250 OK +RCPT TO: <peter@gerwinski.de> +250 Accepted +DATA +354 Enter message, ending with "." on a line by itself +Content-Length: 5 +Subject: Punkt-Test + +vor dem Punkt +. +nach dem250 OK id=1qyV4V-00GXJw-Ld + Punkt +500 unrecognized command +Schade. +500 unrecognized command +QUIT +221 mx1.gerwinski.de closing connection +cassini/home/peter/bo/2023ws/dbs/20231102> diff --git a/20231102/smtp-03.txt b/20231102/smtp-03.txt new file mode 100644 index 0000000..8064665 --- /dev/null +++ b/20231102/smtp-03.txt @@ -0,0 +1,19 @@ +cassini/home/peter/bo/2023ws/dbs/20231102> nc 88.198.170.60 25 +220 mx1.gerwinski.de ESMTP Exim 4.94.2 Thu, 02 Nov 2023 11:38:20 +0100 +HELO cassini +250 mx1.gerwinski.de Hello cassini [195.37.15.82] +MAIL FROM: <peter.gerwinski@hs-bochum.de> +250 OK +RCPT TO: <peter@gerwinski.de> +250 Accepted +DATA +354 Enter message, ending with "." on a line by itself +Lines: 5 + +vor dem Punkt +. +na250 OK id=1qyV6A-00GXPs-Gi +500 unrecognized command +QUIT +221 mx1.gerwinski.de closing connection +cassini/home/peter/bo/2023ws/dbs/20231102> diff --git a/20231102/smtp-04.txt b/20231102/smtp-04.txt new file mode 100644 index 0000000..c9b7729 --- /dev/null +++ b/20231102/smtp-04.txt @@ -0,0 +1,34 @@ +cassini/home/peter/bo/2023ws/dbs/20231102> nc 88.198.170.60 25 +220 mx1.gerwinski.de ESMTP Exim 4.94.2 Thu, 02 Nov 2023 11:43:37 +0100 +HELO cassini +250 mx1.gerwinski.de Hello cassini [195.37.15.82] +MAIL FROM: Jeff Bezos <bezos@amazon.com> +250 OK +RCPT TO: Peter Gerwinski <peter@gerwinski.de> +451-195.37.15.82 is not yet authorized to deliver mail from <bezos@amazon.com> +451 to <peter@gerwinski.de>. Please try later. +QUIT +221 mx1.gerwinski.de closing connection +cassini/home/peter/bo/2023ws/dbs/20231102> nc 88.198.170.60 25 +220 mx1.gerwinski.de ESMTP Exim 4.94.2 Thu, 02 Nov 2023 11:45:12 +0100 +HELO cassini +250 mx1.gerwinski.de Hello cassini [195.37.15.82] +MAIL FROM: Jeff Bezos <bezos@amazon.com> +250 OK +RCPT TO: Peter Gerwinski <peter@gerwinski.de> +250 Accepted +DATA +354 Enter message, ending with "." on a line by itself +From: Elon Musk <musk@tesla.com> +To: Bill Gates <gates@microsoft.com> +Subject: Darlehensangebot + +Brauchen Sie schnell Geld? +Hier können Sie schnell Geld verlieren! +Hier klicken und sämtliche Passwörter eingeben: +[KLICK] +. +250 OK id=1qyVCl-00GXuG-JM +QUIT +221 mx1.gerwinski.de closing connection +cassini/home/peter/bo/2023ws/dbs/20231102> diff --git a/20231102/smtp-05.txt b/20231102/smtp-05.txt new file mode 100644 index 0000000..75f277e --- /dev/null +++ b/20231102/smtp-05.txt @@ -0,0 +1,11 @@ +cassini/home/peter/bo/2023ws/dbs/20231102> nc 88.198.170.60 25 +220 mx1.gerwinski.de ESMTP Exim 4.94.2 Thu, 02 Nov 2023 11:51:13 +0100 +HELO cassini +250 mx1.gerwinski.de Hello cassini [195.37.15.82] +MAIL FROM: <bezos@amazon.com> +250 OK +RCPT TO: <peter.gerwinski@hs-bochum.de> +550 relay not permitted +QUIT +221 mx1.gerwinski.de closing connection +cassini/home/peter/bo/2023ws/dbs/20231102> diff --git a/20231102/ssh-01.txt b/20231102/ssh-01.txt new file mode 100644 index 0000000..f1cd0dd --- /dev/null +++ b/20231102/ssh-01.txt @@ -0,0 +1,22 @@ +pgerwinski@main-0:~$ nc -l -p 1234 +Hallo? +pgerwinski@main-0:~$ + +8< --------------------------------------------------------------------- + +cassini/home/peter> nc main-0.cvh-server.de 1234 +main-0.cvh-server.de [88.99.194.201] 1234 (?) : Connection refused +cassini/home/peter> ssh main-0.cvh-server.de +Linux main-0 6.1.0-11-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.38-4 (2023-08-08) x86_64 + +The programs included with the Debian GNU/Linux system are free software; +the exact distribution terms for each program are described in the +individual files in /usr/share/doc/*/copyright. + +Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent +permitted by applicable law. +Last login: Thu Nov 2 12:56:11 2023 from 195.37.15.82 +pgerwinski@main-0:~$ nc localhost 1234 +Hallo? +^C +pgerwinski@main-0:~$ diff --git a/20231102/ssh-02.txt b/20231102/ssh-02.txt new file mode 100644 index 0000000..d732920 --- /dev/null +++ b/20231102/ssh-02.txt @@ -0,0 +1,17 @@ +cassini/home/peter/bo/2023ws/dbs/20231102> ssh -X -L 2345:localhost:1234 main-0.cvh-server.de +Linux main-0 6.1.0-11-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.38-4 (2023-08-08) x86_64 + +The programs included with the Debian GNU/Linux system are free software; +the exact distribution terms for each program are described in the +individual files in /usr/share/doc/*/copyright. + +Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent +permitted by applicable law. +Last login: Thu Nov 2 12:57:37 2023 from 195.37.15.82 +pgerwinski@main-0:~$ nc -l -p 1234 +Hallo, da bin ich! :-) + +8< --------------------------------------------------------------------- + +cassini/home/peter> nc localhost 2345 +Hallo, da bin ich! :-) diff --git a/20231102/tcpdump-01.txt b/20231102/tcpdump-01.txt new file mode 100644 index 0000000..9d30627 --- /dev/null +++ b/20231102/tcpdump-01.txt @@ -0,0 +1,21 @@ +12:23:21.181037 IP 10.128.29.120.38042 > 195.37.15.39.22: Flags [P.], seq 3563445:3564597, ack 4140, win 501, length 1152 +12:23:21.181049 IP 195.37.15.39.22 > 10.128.29.120.38042: Flags [P.], seq 4140:4176, ack 3552141, win 5157, length 36 +12:23:21.181118 IP 195.37.15.39.22 > 10.128.29.120.38042: Flags [.], ack 3554577, win 5157, length 0 +12:23:21.181126 IP 195.37.15.39.22 > 10.128.29.120.38042: Flags [.], ack 3558097, win 5157, length 0 +12:23:21.182058 IP 195.37.15.39.22 > 10.128.29.120.38042: Flags [.], ack 3561017, win 5157, length 0 +12:23:21.182772 IP 195.37.15.39.22 > 10.128.29.120.38042: Flags [.], ack 3564597, win 5157, length 0 +12:23:21.189369 IP 10.128.29.120.36290 > 88.99.194.201.64738: UDP, length 101 +12:23:21.196348 IP 10.128.29.120.40313 > 88.99.194.245.443: Flags [P.], seq 274090:275179, ack 8103, win 2872, length 1089 +12:23:21.209739 IP 10.128.29.120.36290 > 88.99.194.201.64738: UDP, length 101 +12:23:21.222529 IP 10.128.29.120.38042 > 195.37.15.39.22: Flags [.], ack 4176, win 501, length 0 +12:23:21.223089 IP 88.99.194.245.443 > 10.128.29.120.40313: Flags [P.], seq 8103:8252, ack 275179, win 9243, length 149 +12:23:21.228356 IP 10.128.29.120.40313 > 88.99.194.245.443: Flags [P.], seq 275179:276140, ack 8252, win 2872, length 961 +12:23:21.230318 IP 10.128.29.120.36290 > 88.99.194.201.64738: UDP, length 101 +12:23:21.250856 IP 10.128.29.120.36290 > 88.99.194.201.64738: UDP, length 101 +12:23:21.257762 IP 88.99.194.245.443 > 10.128.29.120.40313: Flags [P.], seq 8252:8397, ack 276140, win 9243, length 145 +12:23:21.258390 IP 10.128.29.120.40313 > 88.99.194.245.443: Flags [P.], seq 276140:277241, ack 8397, win 2872, length 1101 +^C +5545 packets captured +5636 packets received by filter +0 packets dropped by kernel +cassini/root# tcpdump -n -i wlan0 diff --git a/20231102/tcpdump-02.txt b/20231102/tcpdump-02.txt new file mode 100644 index 0000000..9f8c9d4 --- /dev/null +++ b/20231102/tcpdump-02.txt @@ -0,0 +1,93 @@ +12:26:16.721144 IP 10.128.29.120.36290 > 88.99.194.201.64738: UDP, length 102 + 0x0000: 45e0 0082 ad7c 4000 4011 48ea 0a80 1d78 + 0x0010: 5863 c2c9 8dc2 fce2 006e 7f77 e554 76a8 + 0x0020: 6ebc 46e3 aed0 e632 2a22 a62b 66b1 34c8 + 0x0030: 4465 dfef 8b40 7708 2129 11b4 3c03 f141 + 0x0040: f376 bfbc 830c 5ff6 c575 f5a1 9771 3d12 + 0x0050: 067e 4b1c f274 8b39 9a52 ac02 a31b 9df0 + 0x0060: 7501 61f7 68b5 e8e2 c7b2 3f7d 610a d16b + 0x0070: 78ab b056 31ff 76fb 9947 986c 40de 9fc6 + 0x0080: 559e +12:26:16.729240 IP 10.128.29.120.40313 > 88.99.194.245.443: Flags [P.], seq 58714:59895, ack 1628, win 2913, length 1181 + 0x0000: 4500 04c5 42a5 4000 4006 b03d 0a80 1d78 + 0x0010: 5863 c2f5 9d79 01bb ef86 2a4c b23f f7b0 + 0x0020: 5018 0b61 e620 0000 1703 0304 9800 0000 + 0x0030: 0000 033e 7dc7 4216 6e0d c0df 4358 f7f6 + 0x0040: ced5 c96c 9900 a44a 5dab 23b1 c190 5363 + 0x0050: 150a ee8d 86eb 516d 453b 0864 a391 e079 + 0x0060: f4cc b00e 2b1d d4e0 39f3 0d15 6571 a4c6 + 0x0070: e6af 732d 127c a63a 9401 00ef 312b 9365 + 0x0080: e137 3e12 1fb3 e7bd 9bc4 db8e d452 b0a1 + 0x0090: f76a 481f 2155 f22f 19a5 3d8e f7da 579d + 0x00a0: 3025 d2a8 680e d872 67f8 ac36 218a 28e9 + 0x00b0: e4ed 8dfc 65a0 94ec d467 5305 e4a0 d5ae + 0x00c0: e8c2 f366 f722 161d 20b2 f883 468a 65c1 + 0x00d0: 019a 9986 3955 3756 dcf6 0b4c 3718 8e9d + 0x00e0: aa71 3ef4 334d bc54 454b fe70 76c1 2e72 + 0x00f0: 318f 028c c106 5278 0514 c209 7a6e 862b + 0x0100: 16ce eea6 411a 2756 e2bd a972 a55b 1381 + 0x0110: f5df 618b 6369 13f6 12d0 2245 3870 831d + 0x0120: 3c3d 6d4b 038a d775 9736 f13b 7f8c 8f17 + 0x0130: 956f 36a9 a41b ae8b 4060 3f3b f57a c1d1 + 0x0140: 72d8 dfd5 95ba cf56 0f1e b70f 10ad a466 + 0x0150: 9d10 677f 1602 92b4 4f6c ed04 6555 a7a0 + 0x0160: ac94 addd 150d c955 ec93 2f33 8eb1 d689 + 0x0170: 88ee a417 e643 a396 eafe d8ed 5408 107d + 0x0180: 00f0 bdb4 d8db 6883 b109 f4eb d930 7f31 + 0x0190: 42bb 5e41 8a9b 8a22 e51f 6407 88f0 1e9f + 0x01a0: 014a 4c6b 17c5 fd9b 9382 c029 ab27 ce5d + 0x01b0: e922 0129 6ae9 60d9 e898 60ba 22be 138b + 0x01c0: 396d c9a7 34a6 211b 275d bbf8 df0d fe8f + 0x01d0: 4cd9 0c14 580e 77bd 1b94 43fb 5c31 9a37 + 0x01e0: d297 09e1 1b6e 5455 fbbc 5321 4621 5a80 + 0x01f0: ff5c 1747 4dce 4621 3525 797c 9a96 a2bf + 0x0200: 88b5 978c f9cc 3782 823c f344 229e 04ce + 0x0210: c964 72eb a7a6 4fef 4f14 d7c1 998f fd48 + 0x0220: 649e 9047 97a8 e4c5 b538 20ed 81f6 2820 + 0x0230: 9728 29e9 165c 6ded 0b9b 58ab 64d2 5e1d + 0x0240: 46cf 2394 0c2b f7f1 eda5 1e0e e4ed 72e5 + 0x0250: ff3a 8460 bea5 4b11 a85b ab8d 6d29 4747 + 0x0260: d240 4197 7225 5c97 c33c f724 36d0 2fb1 + 0x0270: 75c1 0991 9d0b 5c84 4955 e9d8 0dee 54fc + 0x0280: 2405 c69a b97b e831 3ba4 da08 1041 9b3b + 0x0290: 06c7 216a 1a47 6bc2 1b15 19d7 a214 9fe9 + 0x02a0: d4ac b6ff 1af9 6bb1 bfa5 a84f ed8c 0a43 + 0x02b0: fa1c 731c c2c1 3190 2833 0707 5745 36f9 + 0x02c0: 6d6b 355f 70d5 cbac 2662 6104 9020 3b8b + 0x02d0: 4e28 1c1b 7477 d40f 2c48 8456 9bb0 9c86 + 0x02e0: f176 f5fd 3e04 23fa 7bb3 aa12 47f2 94b6 + 0x02f0: 3d80 fe2f db2c 9854 e6da a3da 2c40 4b07 + 0x0300: 2079 d98e 52a6 f242 e088 3a5a faef c8fc + 0x0310: 4017 42ba a78f 2d72 0d7e 8941 bdcc ce3e + 0x0320: 8eb6 c030 08cb 3f68 8c2f 80df 2e90 d390 + 0x0330: d75f f575 dea3 b078 0ffd c8a4 35c2 f8ea + 0x0340: 381d 2014 7b11 6d58 78a6 6bf9 b770 1249 + 0x0350: 1766 b8a5 8943 3298 d0f3 5bad a329 ea2b + 0x0360: f061 7475 5ab7 e8fa 0dc9 85e0 c65b e1b8 + 0x0370: f7ca 726c a650 40e3 f88e 8d74 ad9e 2372 + 0x0380: 01f0 fe5a c278 9a3b 4aaf 8cee 8004 6739 + 0x0390: 7aea c8a4 a4af bff1 3837 a4be ffc3 8a4a + 0x03a0: 0740 f63f 347e bd07 fc3d 338d 3535 c61e + 0x03b0: ba22 f4c4 20fa 092c bbb6 03d7 03e0 9d22 + 0x03c0: b360 0e23 1b2b ed54 6d0e 6935 c30a c5ce + 0x03d0: 9c4f 6870 6b48 2083 a9ae cf7a 09b2 ffbf + 0x03e0: 5957 0030 eb89 12eb de08 56b6 25b3 f33c + 0x03f0: 7275 ceb6 cbd7 1f60 e8cf c362 dcef f06e + 0x0400: 5449 5204 aec4 c666 2743 0f51 51d1 442d + 0x0410: 3f78 eaf1 ce3e 1b91 5a44 3f11 fd73 9999 + 0x0420: 4afe bbc2 6a65 660a 4b73 0070 30c7 4798 + 0x0430: b6b3 0059 ded5 3ee4 6a38 751f a5a8 8350 + 0x0440: 849c 92fe b7b9 6f09 2ca8 72b0 4943 f247 + 0x0450: ec4d 62f1 8b9c 2fd4 2af9 a5e0 e6ba 5b39 + 0x0460: 3ccb 635d a6b5 757c 6743 de67 4d11 6af9 + 0x0470: 0337 b09b cf5c 76d8 58d4 9bea 5493 0d18 + 0x0480: bd1e 7d13 5351 2693 c3f1 ead8 5b64 065c + 0x0490: 51cc 5833 e73f 7290 d987 8454 24d2 8fad + 0x04a0: 94c0 55b5 d9f0 9ac3 2c69 d14c bfb7 5052 + 0x04b0: 2390 afc6 d666 8edb 7931 c7e9 1544 11da + 0x04c0: 7cbd 7647 a1 +^C +803 packets captured +817 packets received by filter +0 packets dropped by kernel +cassini/root# tcpdump -n -i wlan0 -x diff --git a/20231102/tcpdump-03.txt b/20231102/tcpdump-03.txt new file mode 100644 index 0000000..6fdcd95 --- /dev/null +++ b/20231102/tcpdump-03.txt @@ -0,0 +1,38 @@ +cassini/root# tcpdump -n -i lo -x port 1234 +tcpdump: verbose output suppressed, use -v[v]... for full protocol decode +listening on lo, link-type EN10MB (Ethernet), snapshot length 262144 bytes +12:31:29.286657 IP 127.0.0.1.55462 > 127.0.0.1.1234: Flags [S], seq 3414759276, win 65495, options [mss 65495,sackOK,TS val 2171609293 ecr 0,nop,wscale 7], length 0 + 0x0000: 4500 003c 344e 4000 4006 086c 7f00 0001 + 0x0010: 7f00 0001 d8a6 04d2 cb89 176c 0000 0000 + 0x0020: a002 ffd7 fe30 0000 0204 ffd7 0402 080a + 0x0030: 8170 20cd 0000 0000 0103 0307 +12:31:29.286668 IP 127.0.0.1.1234 > 127.0.0.1.55462: Flags [S.], seq 1205734117, ack 3414759277, win 65483, options [mss 65495,sackOK,TS val 2171609293 ecr 2171609293,nop,wscale 7], length 0 + 0x0000: 4500 003c 0000 4000 4006 3cba 7f00 0001 + 0x0010: 7f00 0001 04d2 d8a6 47de 0ae5 cb89 176d + 0x0020: a012 ffcb fe30 0000 0204 ffd7 0402 080a + 0x0030: 8170 20cd 8170 20cd 0103 0307 +12:31:29.286679 IP 127.0.0.1.55462 > 127.0.0.1.1234: Flags [.], ack 1, win 512, options [nop,nop,TS val 2171609293 ecr 2171609293], length 0 + 0x0000: 4500 0034 344f 4000 4006 0873 7f00 0001 + 0x0010: 7f00 0001 d8a6 04d2 cb89 176d 47de 0ae6 + 0x0020: 8010 0200 fe28 0000 0101 080a 8170 20cd + 0x0030: 8170 20cd +12:31:53.307321 IP 127.0.0.1.55462 > 127.0.0.1.1234: Flags [P.], seq 1:8, ack 1, win 512, options [nop,nop,TS val 2171633313 ecr 2171609293], length 7 + 0x0000: 4500 003b 3450 4000 4006 086b 7f00 0001 + 0x0010: 7f00 0001 d8a6 04d2 cb89 176d 47de 0ae6 + 0x0020: 8018 0200 fe2f 0000 0101 080a 8170 7ea1 + 0x0030: 8170 20cd 4861 6c6c 6f3f 0a +12:31:53.307355 IP 127.0.0.1.1234 > 127.0.0.1.55462: Flags [.], ack 8, win 512, options [nop,nop,TS val 2171633313 ecr 2171633313], length 0 + 0x0000: 4500 0034 2140 4000 4006 1b82 7f00 0001 + 0x0010: 7f00 0001 04d2 d8a6 47de 0ae6 cb89 1774 + 0x0020: 8010 0200 fe28 0000 0101 080a 8170 7ea1 + 0x0030: 8170 7ea1 + +8< --------------------------------------------------------------------- + +cassini/home/peter> nc localhost 1234 +Hallo? + +8< --------------------------------------------------------------------- + +cassini/home/peter> nc -p 1234 -l +Hallo? diff --git a/20231102/tcpdump-04.txt b/20231102/tcpdump-04.txt new file mode 100644 index 0000000..9bccd52 --- /dev/null +++ b/20231102/tcpdump-04.txt @@ -0,0 +1,35 @@ +cassini/root# tcpdump -n -i lo -A port 1234 +tcpdump: verbose output suppressed, use -v[v]... for full protocol decode +listening on lo, link-type EN10MB (Ethernet), snapshot length 262144 bytes +12:34:11.379210 IP 127.0.0.1.55462 > 127.0.0.1.1234: Flags [P.], seq 3414759284:3414759291, ack 1205734118, win 512, options [nop,nop,TS val 2171771385 ecr 2171633313], length 7 +E..;4Q@.@..j...............tG. +....../..... +.r...p~.Hallo. + +12:34:11.379228 IP 127.0.0.1.1234 > 127.0.0.1.55462: Flags [.], ack 7, win 512, options [nop,nop,TS val 2171771385 ecr 2171771385], length 0 +E..4!A@.@...............G. +....{.....(..... +.r...r.. +12:34:23.626460 IP 127.0.0.1.1234 > 127.0.0.1.55462: Flags [P.], seq 1:12, ack 7, win 512, options [nop,nop,TS val 2171783632 ecr 2171771385], length 11 +E..?!B@.@..u............G. +....{.....3..... +.r...r..Hier auch. + +12:34:23.626469 IP 127.0.0.1.55462 > 127.0.0.1.1234: Flags [.], ack 12, win 512, options [nop,nop,TS val 2171783632 ecr 2171783632], length 0 +E..44R@.@..p...............{G. +......(..... +.r...r.. + +8< --------------------------------------------------------------------- + +cassini/home/peter> nc localhost 1234 +Hallo? +Hallo. +Hier auch. + +8< --------------------------------------------------------------------- + +cassini/home/peter> nc -p 1234 -l +Hallo? +Hallo. +Hier auch. diff --git a/20231102/test.mbox b/20231102/test.mbox new file mode 100644 index 0000000..1a32101 --- /dev/null +++ b/20231102/test.mbox @@ -0,0 +1,197 @@ +From peter.gerwinski@hs-bochum.de Thu Nov 02 11:28:04 2023 +Return-path: <peter.gerwinski@hs-bochum.de> +Envelope-to: peter@phoenix.intern +Delivery-date: Thu, 02 Nov 2023 11:28:04 +0100 +Received: from [127.0.0.1] (helo=m31.gerwinski.de) + by cassini with esmtp (Exim 4.96) + (envelope-from <peter.gerwinski@hs-bochum.de>) + id 1qyUvX-004dnN-0r + for peter@phoenix.intern; + Thu, 02 Nov 2023 11:28:04 +0100 +Received: from [195.37.15.82] (helo=cassini) + by m31.gerwinski.de with smtp (Exim 4.94.2) + (envelope-from <peter.gerwinski@hs-bochum.de>) + id 1qyUuM-00GWUO-5J + for peter@gerwinski.de; Thu, 02 Nov 2023 11:28:04 +0100 +From: Prof. Dr. rer. nat. Peter Gerwinski <peter.gerwinski@hs-bochum.de> +To: Peter Gerwinski <peter@gerwinski.de> +Subject: Test +Message-Id: <E1qyUvX-004dnN-0r@cassini> +Date: Thu, 02 Nov 2023 11:28:04 +0100 +Content-Length: 45 +Lines: 5 + +Hallo, + +dies ist ein Test. + +Schöne Grüße! + +From peter Thu Nov 2 11:30:14 2023 +MIME-Version: 1.0 +Received: from mail.hs-bochum.de [193.175.85.41] + by cassini with IMAP (fetchmail-6.4.37) + for <peter@localhost> (single-drop); Thu, 02 Nov 2023 11:30:14 +0100 (CET) +Received: from hsex02.hsbo.local (10.254.0.22) by hsex01.hsbo.local + (10.254.0.21) with Microsoft SMTP Server (version=TLS1_2, + cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1258.25 via Mailbox + Transport; Thu, 2 Nov 2023 11:29:58 +0100 +Received: from hsex02.hsbo.local (10.254.0.22) by hsex02.hsbo.local + (10.254.0.22) with Microsoft SMTP Server (version=TLS1_2, + cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1258.25; Thu, 2 Nov + 2023 11:29:56 +0100 +Received: from oms0.hs-bochum.de (193.175.85.64) by hsex02.hsbo.local + (10.254.0.22) with Microsoft SMTP Server id 15.2.1258.25 via Frontend + Transport; 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+ Thu, 02 Nov 2023 11:39:11 +0100 +Received: from [195.37.15.82] (helo=cassini) + by m31.gerwinski.de with smtp (Exim 4.94.2) + (envelope-from <peter.gerwinski@hs-bochum.de>) + id 1qyV6A-00GXPs-Gi + for peter@gerwinski.de; Thu, 02 Nov 2023 11:39:11 +0100 +Message-Id: <E1qyV6I-004eJE-1S@cassini> +From: peter.gerwinski@hs-bochum.de +Date: Thu, 02 Nov 2023 11:39:11 +0100 +Content-Length: 14 +Lines: 5 + +vor dem Punkt + +From peter.gerwinski@hs-bochum.de Thu Nov 02 11:37:29 2023 +Return-path: <peter.gerwinski@hs-bochum.de> +Envelope-to: peter@phoenix.intern +Delivery-date: Thu, 02 Nov 2023 11:37:29 +0100 +Received: from [127.0.0.1] (helo=m31.gerwinski.de) + by cassini with esmtp (Exim 4.96) + (envelope-from <peter.gerwinski@hs-bochum.de>) + id 1qyV4e-004eDo-2d + for peter@phoenix.intern; + Thu, 02 Nov 2023 11:37:29 +0100 +Received: from [195.37.15.82] (helo=cassini) + by m31.gerwinski.de with smtp (Exim 4.94.2) + (envelope-from <peter.gerwinski@hs-bochum.de>) + id 1qyV4V-00GXJw-Ld + for peter@gerwinski.de; Thu, 02 Nov 2023 11:37:29 +0100 +Subject: Punkt-Test +Message-Id: <E1qyV4e-004eDo-2d@cassini> +From: peter.gerwinski@hs-bochum.de +Date: Thu, 02 Nov 2023 11:37:29 +0100 +Content-Length: 14 +Lines: 1 + +vor dem Punkt + +From bezos@amazon.com Thu Nov 02 11:47:00 2023 +Return-path: <bezos@amazon.com> +Envelope-to: peter@phoenix.intern +Delivery-date: Thu, 02 Nov 2023 11:47:00 +0100 +Received: from [127.0.0.1] (helo=m31.gerwinski.de) + by cassini with esmtp (Exim 4.96) + (envelope-from <bezos@amazon.com>) + id 1qyVDr-004eg5-0R + for peter@phoenix.intern; + Thu, 02 Nov 2023 11:47:00 +0100 +Received: from [195.37.15.82] (helo=cassini) + by m31.gerwinski.de with smtp (Exim 4.94.2) + (envelope-from <bezos@amazon.com>) + id 1qyVCl-00GXuG-JM + for peter@gerwinski.de; Thu, 02 Nov 2023 11:46:59 +0100 +From: Elon Musk <musk@tesla.com> +To: Bill Gates <gates@microsoft.com> +Subject: Darlehensangebot +Message-Id: <E1qyVDr-004eg5-0R@cassini> +Date: Thu, 02 Nov 2023 11:47:00 +0100 +Content-Length: 126 +Lines: 4 + +Brauchen Sie schnell Geld? +Hier können Sie schnell Geld verlieren! +Hier klicken und sämtliche Passwörter eingeben: +[KLICK] + -- GitLab