Most of my work is available publicly, but some development is hosted on a private SVN that’s hidden behind a firewall. Unfortunately, my primary development server is on the wrong side of that particular firewall, so I use the following command to bridge the gap:

ssh -R 1980:svn_host:80 username@dev_server.com

That creates a reverse tunnel through my laptop to the SVN server and allows me to checkout code using the following:

http://localhost:1980/path/to/trunk

I’m posting that because I lost my terminal command history and had to think for a moment about how to do this again.

Years ago I used to tunnel my outgoing email to an un-authenticated SMTP server that only accepted outgoing messages from hosts on the local network. That was fairly common back in 2000 or so, but obviously made life (or communication) difficult for people at home or on the road. The easy solution was to SSH to a machine on mail server’s local network and forward emails through it.

ssh -L 1925:email_host:25 username@ssh_host

Doing that, I was able to configure my mail client to send outgoing emails using a server configuration like the following:

SMTP host: localhost
SMTP port: 1925

Option GlobeSurfer X•1 router: “a new product that transforms any USB wireless modem into an instant Internet-connected WiFi network capable of supporting multiple users.” Too bad I can’t figure out where to buy it.

Also too bad that I can’t simply do this with a jail-broked iPhone. I mean, doesn’t an iPhone have everything it needs built-in: a cell-phone modem, WiFi hardware, and enough unixy goodness to support NAT and routing?

Corporate networks are defenseless against the growing threat from instant messaging, and the government warns WiFi is insecure and easily sniffed.

Experts suggest we take precautions against the growing risk of p2p software that’s exposing sensitive documents and threatening national security.

Businesses blame security problems on their employees, their mobile devices, and other consumer technologies.

And now we have MySpace.

After vacillating for a while (and waiting for it to become available), I finally purchased one of the Verizon / Novatel V640 Express Card EVDO adapters that everybody’s talking about for my MacBook Pro.

GearLog promised it would be easy — simply install drivers, plug in card — but they were wrong. Truth was that I didn’t even have to install the drivers. Mac OS X asked me if I wanted to “activate” the card when I plugged it in, then automatically went about configuring everything. Everything was done in short order, and moments after clicking connect I was online with wireless PPP and pinging the world. I don’t know how much of this can be credited to any configuration the folks at Booster Antenna (from whom I bought the card and service) may have done and how much is do to good plug-n-play in OS X. I can, however, say the price and service were excellent.

The 1xRTT speeds I’ve seen so far are fast enough to listen to 128K MP3 streams (though not without occasional hiccups), and the Speedtest reports consistently 125K or better downloads, with uploads that were never far behind and sometimes faster. In most of my use it actually feels faster than the numbers suggest, though scrolling in Google maps is noticeably slower than I’m used to (as are any other similarly graphic-heavy activities). I’ve not even tried surfing the likes of YouTube.

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