We've had our PTC license server running happily for about 9 months. Without any known changes to the system, suddenly in the last three weeks, we've had the ptc_d daemon shut down on us three times. Excerpts from the log say:
11:39:29 (lmgrd) Can't open /usr/tmp/.flexlm/lmgrdl.28874, errno: 24 (this location has wide open permissions, and plenty of free space)
11:51:36 (lmgrd) lmgrd will now shut down all the vendor daemons 11:51:36 (lmgrd) Shutting down ptc_d 11:51:54 (ptc_d) IN: "PROE_Flex3C" jones@mach1 (SHUTDOWN) 11:51:54 (ptc_d) IN: "PROE_Flex3C" smith@mach2 (SHUTDOWN) 11:51:54 (ptc_d) IN: "PROE_Flex3C" doe@mach3 (SHUTDOWN), etc., etc.