SSH port forwarding is so useful that sometimes you want to daemonize it, to create encrypted tunnels that never go away. But it’s not trivial to do this. Fortunately it is possible with a little fiddling, and I did it using monit.
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Pretty much every Unix user knows about the kill command, and most know about ‘kill -KILL’ aka ‘kill -9′.
But do you know about kill -STOP and kill -CONT?
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Argh! I spent about 5 hours yesterday troubleshooting a failed Ubuntu Jaunty -> Karmic (9.04->9.10) upgrade. It worked fine until I rebooted and then failed to boot. Here’s how I fixed it.
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Once again Ubuntu Linux proves itself to be easy to upgrade. Going from 9.04 to 9.10 (one release newer, since their numbering is bsaed on dates) was easy, but included the standard sprinkling of manual re-customization that I’ve come to expect from Debian based systems.
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I’m at WordCamp San Francisco today and decided that running a year old version of WordPress (on a year old version of Ubuntu Linux) was undesirable. So, with the confidence that comes from many relatively easy Ubuntu OS upgrades, I charged ahead. For (I think) the second time ever, things went badly. Here’s what I did and how I fixed it.
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