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alain-odea-vgh/whos_turning_on_tstamp.d

Last active October 15, 2015 02:53
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Using DTrace on SmartOS to find who's turning on TCP timestamping globally (and breaking Windows keep-alive)
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whos_turning_on_tstamp.d
#!/usr/sbin/dtrace -s
fbt:ip:mod_set_boolean:entry
/stringof(args[2]->mpi_name) == "_tstamp_if_wscale" &&
stringof(args[4]) == "1"/
{
printf("timestamping enabled using %s in VM UUID %s", execname, zonename);
}
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