Reserved network ports [LWN.net]

Reserved network ports

Posted Feb 26, 2010 19:29 UTC (Fri) by mrshiny (subscriber, #4266)
In reply to: Reserved network ports by dlang
Parent article: Reserved network ports

Exactly. The problem is that there are already programs which expect to use certain "ephemeral" ports as a well-known listening port. You can't close your eyes and wish that away. With this patch the "ephemeral ports" list gets smaller and more configurable.

Seems like an obvious improvement to me with no obvious downside.

Sure there are other problems not addressed by this patch, but I feel it _is_ progress. Heck, just put all the ports in /etc/services in here and you're already off to a good start.

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Reserved network ports

Posted Feb 27, 2010 14:39 UTC (Sat) by nix (subscriber, #2304) [Link]

But I want to be able to close my eyes and wish NFS away!

For a while it looked like POHMELFS was just the thing: a faster better
more reliable distributed NFS, with pretty much the same system
administration model ('oops, I want to make this FS networked, bang,
done'). But now Evgeniy has started to move POHMELFS to this elliptics
cloud-based thing, and as far as I can tell this requires you to *recreate
the filesystem* when you want to POHMELFSize it.

I don't *have* a cloud. I have one or two great big servers and I want to
distribute stuff between them and export their filesystems, possibly at
short notice, to a bunch of clients. And NFS is slow and inefficient and
non-POSIX and generally nasty.

Is there anything better? For a while it looked like POHMELFS would be,
but I no longer know. I've been hoping for something better for a couple
of decades now...