Minimize log file production, and periodically clean /tmp.

[woodrow]

On a measurement server:

$ ls -l /tmp
-rw-rw-r-- 1 unpriv unpriv 497492 Feb 28 21:03 bismark-mserver-itg_dw.log
-rw-rw-r-- 1 unpriv unpriv  74074 Feb 28 21:03 bismark-mserver-itg_up.log
-rw-rw-r-- 1 unpriv unpriv    306 Feb 21 02:32 bismark-mserver-netperf.log
-rw-rw-r-- 1 unpriv unpriv      0 Feb  1 04:48 bismark-mserver-probeserver.log
-rw-rw-r-- 1 unpriv unpriv      0 Feb 21 02:31 netperf.debug_21295
-rw-rw-r-- 1 unpriv unpriv    370 Feb 23 21:33 netperf.debug_21782
-rw-rw-r-- 1 unpriv unpriv   1295 Feb 21 01:52 netperf.debug_22989

Determine which if any of these are important, and think about syslogging them.

Purge /tmp regularly to keep some of these from getting out of control, and/or to clean files missed by itg_dw process.