Fedora 10 is out!

Fedora 10 was released yesterday, and I'm very impressed. This are much smoother this time around than in Fedora 9, and the Solar artwork is simply stunning. You can see some screenshots in this Phoronix review, and if you like it you can grab the LiveCD/LiveUSB, CD and DVD ISO images here. I've also updated all my blog howtos for Fedora 10, so if you need any help setting up your system with RPM Fusion be sure to check them out!

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Data loss & backups survey

I'm taking a small business course at my local college and one of my assignments is to write a business plan for a business which would be offering the product or service of my choice.

Since I'm interested in data recovery and backups, I've written a short online survey  about data loss and backups which will help me collect information for the project. It should only take two minutes to fill out and I would really appreciate it if you could take the time to complete it. The more results I have the better... Thanks! (btw, if you'd like to see the results, then visit this page).

Update: The survey is now closed. Thank you to all who participated!

NiN

I went to see NiN's Lights in the Sky tour at the Bell Center last week, it was one amazing (light) show! If they're coming by your city and you're a fan of NiN, you should definitely consider going.

You're a pirate!

While the poll is on the topic of DRM.... I really enjoyed this xkcd Tongue out

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The magic SSH command

I love SSH's port mapping features. They're a bit complex to figure out, but they can prove to be very handy.

Once, I was updating a friends Fedora installation but I had to head home... He was behind a firewall and so I wouldn't be able to do remote access, even though sshd was running. Port mapping to the rescue! I logged in via SSH to my home machine and mapped his port 22 to a port on my local machine, so when I got home I was able to ssh to localhost and thereby get into his machine.

I've come up with my favourite SSH command that combines a few tricks - it goes as follows:

ssh -p port -l username hostname.or.ip -L lport:localhost:rport -D proxyport

I'll run through it step-by-step:

  • ssh -p port -l username hostname.or.ip

    This instructs SSH to connect to hostname.or.ip on port as username.

  • -L lport:localhost:rport

    This maps rport on the remote machine to lport on localhost (aka the machine you're currently using). Essentially, connection to port lport on localhost is the same as connecting to the remote host on port rport. It's very useful for mapping services running on the remote machine (such as VNC) to the local machine over a secure channel.

  • -D proxyport

    This makes SSH act as a SOCKS 4 proxy on localhost using port proxyport, which is needed for allowing traffic on ports which would otherwise be blocked (ie BitTorrent, FTP, POP, SMTP, etc in places that only allow traffic on port 80)

For example:

ssh -p 22 -l me myhost.homelinux.net -L 5905:localhost:5900 -D 5678

This maps the VNC screen :0 on myhost.homelinux.net (port 22, username "me") to the local VNC screen :6, and makes a SOCKS proxy on port 5678. If I connect to localhost:5906, it's the same as connecting to myhost.homelinux.net:5900 except thanks to SSH everything passes through an encrypted channel!

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