Encrypted filesystem on OS X, Linux and Windows
February 2, 2008 on 7:08 pm | In Linux, admin, osx | 3 Comments
Finally we have a truly portable, open source, encrypted filesystem. I’ve tested a fair share of encrypted filesystem solutions. The most promising probably being encfs since it could be used with Fuse, but that only works on OS X and Linux at best.
TrueCrypt, probably the best solution available, was only working on Linux and Windows… up to now.
Continue reading Encrypted filesystem on OS X, Linux and Windows…
Keyboard shortcuts during OS X boot sequence
January 30, 2008 on 12:46 pm | In admin, osx | No CommentsHere is a list of keyboard shortcuts or hotkeys available during the boot sequence of OS X on Intel based macs although some shortcuts also work on PPC.
Shamelessly ripped off apple’s documentation article:
Startup key combinations for Intel-based Macs.
| Keystroke | Description |
|---|---|
| Press C during startup | Start up from a bootable CD or DVD, such as the Mac OS X Install disc that came with the computer. |
| Press D during startup | Start up in Apple Hardware Test (AHT), if the Install DVD 1 is in the computer. |
| Press Option-Command-P-R until you hear two beeps. | Reset NVRAM |
| Press Option during startup | Starts into Startup Manager, where you can select a Mac OS X volume to start from. Note: Press N to make the the first bootable Network volume appear as well. |
| Press Eject, F12, or hold the mouse (/trackpad) button | Ejects any removable media, such as an optical disc. |
| Press N during startup | Attempt to start up from a compatible network server (NetBoot). |
| Press T during startup | Start up in FireWire Target Disk mode. |
| Press Shift during startup | Start up in Safe Boot mode and temporarily disable login items. |
| Press Command-V during startup | Start up in Verbose mode. |
| Press Command-S during startup | Start up in Single-User mode. |
| Press Option-N during startup | Start from a NetBoot server using the default boot image. |
Hosting multiple SSL vhosts on a single IP/Port/Certificate with Apache2
January 24, 2008 on 2:07 pm | In Linux, admin, osx | 28 CommentsBut that’s impossible!!
HTTPS is just HTTP encapsulated inside an SSL tunnel. Apache’s virtual hosts are a clever “hack” whereby the Host header in the HTTP packet is verified. This alllows a single apache instance on a single IP/Port combination to serve a (not so) infinite number of differentes sites (aka vhosts).
Problem: The SSL tunnel is created before the first HTTP packet gets sent. Apache needs an SSL certificate but doesn’t have a Host header to match, hence cannot choose a virtual host.
Solution
This trick essentially does the matching of the Host header after the SSL connection has been established. How? Via some mod_rewrite magic!
Caveats
Although I said so, it’s not really that magical. There are a few things this trick does not solve.
- The SSL certificate used will be common to all SSL vhosts.
- Certain Apache directives may be common to all SSL vhosts (example: SuExecUserGroup). Basically anything you can’t override in a .htaccess file will be shared amongst vhosts.
Continue reading Hosting multiple SSL vhosts on a single IP/Port/Certificate with Apache2…
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