Am 25.02.2013 23:36, schrieb Reindl Harald:

Am 25.02.2013 23:34, schrieb Tilman Schmidt:

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Am 25.02.2013 15:56, schrieb m.roth@5-cent.us:

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Robert Moskowitz wrote:

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Then there is the actual update. I learned long ago NOT to run yum over an SSH connection, as WHEN that connection breaks in the middle of an update, you can have quite a problem to clean up. All I have done

That sounds, to me, as though you have very serious communications issues that need to be solved, and yesterday. We've used ssh here, and at my previous two? three? contracts, for years, and almost *never* have an ssh connection break.

It does happen. SSH is not as forgiving to network glitches as one would wish sometimes. A firewall that drops idle or long-running TCP connections, a DSL link doing its daily PPPoE disconnect at an inopportune moment, a VPN tunnel dropping, a hole in UMTS coverage, have all killed a SSH connection for me one time or another

and that is why "screen" was invented

Well, not quite. IIRC screen is older than SSH and was actually invented to switch between multiple screens on a text mode terminal attached either via a modem or a null modem cable. But I agree that it comes in handy for this scenario, too.

everybody doing a yum-upgarde over WAN directly on SSH instead use screen is a foll and should not maintain servers

Sure. Whatever a "foll" is supposed to be ... :-)