'Sysdig' Linux Troubleshooting tool - Something like strace + tcpdump + lsof + more

(from Darknet)

Sysdig captures system calls and other system level events using a linux kernel facility called tracepoints, which means much less overhead than strace.

It then “packetizes” this information, so that you can save it into trace files and filter it, a bit like you would do with tcpdump. This makes it very flexible to explore what processes are doing.

Check it Out

http://www.sysdig.org/