Pinboard (jm)
https://pinboard.in/u:jm/public/
recent bookmarks from jmHow-to Debug a Running Docker Container from a Separate Container2017-02-20T10:34:01+00:00
https://medium.com/@rothgar/how-to-debug-a-running-docker-container-from-a-separate-container-983f11740dc6#.almdvzn67
jmstrace docker ops debugging containershttps://pinboard.in/https://pinboard.in/u:jm/b:aca1d05c70a3/Tracedump2014-05-29T09:25:20+00:00
http://mutrics.iitis.pl/tracedump
jma single application IP packet sniffer that captures all TCP and UDP packets of a single Linux process. It consists of the following elements:
* ptrace monitor - tracks bind(), connect() and sendto() syscalls and extracts local port numbers that the traced application uses;
* pcap sniffer - using information from the previous module, it captures IP packets on an AF_PACKET socket (with an appropriate BPF filter attached);
* garbage collector - periodically reads /proc/net/{tcp,udp} files in order to detect the sockets that the application no longer uses.
As the output, tracedump generates a PCAP file with SLL-encapsulated IP packets - readable by eg. Wireshark. This file can be later used for detailed analysis of the networking operations made by the application. For instance, it might be useful for IP traffic classification systems.
]]>debugging networking linux strace ptrace tracedump tracing tcp udp sniffer ip tcpdumphttps://pinboard.in/https://pinboard.in/u:jm/b:d013afd680ad/sysdig2014-04-04T12:01:42+00:00
http://www.sysdig.org/
jmopen source, system-level exploration: capture system state and activity from a running Linux instance, then save, filter and analyze.
Think of it as strace + tcpdump + lsof + awesome sauce.
With a little Lua cherry on top.
This sounds excellent. Linux-based, GPLv2.
]]>debugging tools linux ops tracing strace open-source sysdig cli tcpdump lsofhttps://pinboard.in/https://pinboard.in/u:jm/b:fc93efb68a74/ioprofile2010-10-16T11:09:45+00:00
http://aspersa.googlecode.com/svn/html/ioprofile.html
jmvia:jzawodny io strace linux monitoring debugging performance profiling sysadmin ioprofile unix toolshttps://pinboard.in/u:jm/b:2654db8d62e5/