Raspberry Pi: Sniffen mit TShark, aber nicht als root User
Zuerst mal eine Mindmap zu TShark, dem Kommandline-Tool von Wireshark (frühe Ethereal). Installation Zuerste den rPi aktualisieren und das Packet installieren mit:
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sudo apt-get update sudo apt-get upgrade sudo apt-get install tshark |
Zuerst einmal die Befehle und die Version für die Komandozeile mit
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tshark -h |
ausgeben:
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TShark 1.12.1 (Git Rev Unknown from unknown) Dump and analyze network traffic. See http://www.wireshark.org for more information. Copyright 1998-2014 Gerald Combs <gerald@wireshark.org> and contributors. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. Usage: tshark [options] ... Capture interface: -i <interface> name or idx of interface (def: first non-loopback) -f <capture filter> packet filter in libpcap filter syntax -s <snaplen> packet snapshot length (def: 65535) -p don't capture in promiscuous mode -I capture in monitor mode, if available -B <buffer size> size of kernel buffer (def: 2MB) -y <link type> link layer type (def: first appropriate) -D print list of interfaces and exit -L print list of link-layer types of iface and exit Capture stop conditions: -c <packet count> stop after n packets (def: infinite) -a <autostop cond.> ... duration:NUM - stop after NUM seconds filesize:NUM - stop this file after NUM KB files:NUM - stop after NUM files Capture output: -b <ringbuffer opt.> ... duration:NUM - switch to next file after NUM secs filesize:NUM - switch to next file after NUM KB files:NUM - ringbuffer: replace after NUM files Input file: -r <infile> set the filename to read from (- to read from stdin) Processing: -2 perform a two-pass analysis -R <read filter> packet Read filter in Wireshark display filter syntax -Y <display filter> packet displaY filter in Wireshark display filter syntax -n disable all name resolutions (def: all enabled) -N <name resolve flags> enable specific name resolution(s): "mntC" -d <layer_type>==<selector>,<decode_as_protocol> ... "Decode As", see the man page for details Example: tcp.port==8888,http -H <hosts file> read a list of entries from a hosts file, which will then be written to a capture file. (Implies -W n) Output: -w <outfile|-> write packets to a pcap-format file named "outfile" (or to the standard output for "-") -C <config profile> start with specified configuration profile -F <output file type> set the output file type, default is pcapng an empty "-F" option will list the file types -V add output of packet tree (Packet Details) -O <protocols> Only show packet details of these protocols, comma separated -P print packet summary even when writing to a file -S <separator> the line separator to print between packets -x add output of hex and ASCII dump (Packet Bytes) -T pdml|ps|psml|text|fields format of text output (def: text) -e <field> field to print if -Tfields selected (e.g. tcp.port, _ws.col.Info) this option can be repeated to print multiple fields -E<fieldsoption>=<value> set options for output when -Tfields selected: header=y|n switch headers on and off separator=/t|/s|<char> select tab, space, printable character as separator occurrence=f|l|a print first, last or all occurrences of each field aggregator=,|/s|<char> select comma, space, printable character as aggregator quote=d|s|n select double, single, no quotes for values -t a|ad|d|dd|e|r|u|ud output format of time stamps (def: r: rel. to first) -u s|hms output format of seconds (def: s: seconds) -l flush standard output after each packet -q be more quiet on stdout (e.g. when using statistics) -Q only log true errors to stderr (quieter than -q) -g enable group read access on the output file(s) -W n Save extra information in the file, if supported. n = write network address resolution information -X <key>:<value> eXtension options, see the man page for details -z <statistics> various statistics, see the man page for details --capture-comment <comment> add a capture comment to the newly created output file (only for pcapng) Miscellaneous: -h display this help and exit -v display version info and exit -o <name>:<value> ... override preference setting -K <keytab> keytab file to use for kerberos decryption -G [report] dump one of several available reports and exit default report="fields" use "-G ?" for more help WARNING: dumpcap will enable kernel BPF JIT compiler if available. You might want to reset it By doing "echo 0 > /proc/sys/net/core/bpf_jit_enable" |
Erst wollen wir uns die vorhandenen Interfaces anschauen und die Nummer merken.
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sudo tshark -D |
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