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Solaris command or utility to monitor number of open file descriptors and sockets

mromeo asked
Last Modified: 2013-12-27

Can somebody tell me what would be the best way to monitor the open sockets and file descriptors on a machine?  I am running into a situation where I think my machine is getting max'ed out on its file descriptors, which is set to 256, but I want to monitor this before I starting tuning the kernel.  Can somebody give me some advice on how to do this?  I know that I can use netstat to look at open sockets, but that doesn't give me the total number of combined sockets and file descriptors.

Also, I noticed that netstat sometimes repeats information for a socket.  Does anybody know to prevent that from happening?

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