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Dive Even Deeper

Dive Even Deeper. sysdig – Wireshark for your system. Agenda. Overview Visualization Fishing for Hackers. Wireshark Is Awesome. Why Is Wireshark Awesome?. The Workflow!. Capture Don’t need to sit in front of the machine waiting for the issue Share trace files

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Dive Even Deeper

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  1. Dive Even Deeper sysdig – Wireshark for your system

  2. Agenda • Overview • Visualization • Fishing for Hackers

  3. Wireshark Is Awesome

  4. Why Is Wireshark Awesome?

  5. The Workflow! • Capture • Don’t need to sit in front of the machine waiting for the issue • Share trace files • Capture in multiple locations and then correlate • Filter • Find the needle in the haystack • Don’t need to know what you’re looking for • Learn while exploring • Analyze • Put intelligence on top of low level information • Packets can tell us a lot • And never lie

  6. Question:If Wireshark’s Workflow Is So Great, Can We Apply It To System Monitoring?

  7. Sysdig • Capture system events • System calls • Context switches • More • Packetize them • Store them into pcap-ng traces • Wireshark-like display fields • Filtering • rendering

  8. res = open(const char *pathname, int flags) Type = open Nargs = 2 “myfile.txt” 1 Analyze Store Filter

  9. sysdig • Command line parsing • Capture management • Event parsing • State engine • Filtering • Output Formatting • Chisel execution sinsp • Capture Control • Dump files R/W • OS state collection scap User kernel Event Buffer Sysdig-probe • Non-blocking event collection • Type-based event packing • Memory mapped buffer handling

  10. Chisels • Lua scripts to carve up the data you unearthed • First class citizens from day one • Callback API • Process events • Create summaries • Main API • Control sysdig • Extract fields https://github.com/draios/sysdig/wiki/Sysdig%20Chisel%20API%20Reference%20Manual

  11. Demo

  12. Get Engaged • http://www.sysdig.org/ • https://github.com/draios/sysdig • https://github.com/draios/sysdig/wiki • http://www.sysdig.org/install/

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