sockstat command

How do I open the TCP or UDP ports under UNIX / Linux like operating systems?

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I tried a binary upgrade method, but it failed due to custom kernel installed on my FreeBSD 7.1_p5 64 bit AMD systems. How do I upgrade my FreeBSD server using source code method?

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Q. I’ve custom compile kernel and I’d like to upgrade my system to latest stable release. How do I upgrade FreeBSD to new release without using freebsd-update binary tool?

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Q. How do I find open ports on Linux / FreeBSD server?

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