JetBytes: On-the-fly file transfer……

Reference, Technology
Neat idea.....You all know about sites where you can upload a large file, for your friends to download. It's simple, but what if you don't want to store the file somewhere. It suddenly gets a bit harder, right. Now you need to bring up that FTP/SSH server, create userid's, open firewall, forward ports, etc. You get the idea.Well, that's were Jetbytes fits in. It's a simple on-the-fly file transfer web service. You go to their website, choose the file you want to pass on to your friend. The site prints out a temporary/random URL, you send your friend the URL and as long as you stay on the page, they can download the file by simply clicking on the URL.JetBytes does nothing more than route the file through their web…
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RevoLabs makes Microphones cool again….

Apple, Leopard, Macintosh, OSX, Reference, Research, Skype, Technology, USB, Windows
A friend passed this on today (thanks Jeremy). If you use a mic in your day to day businness (or even if you're an occasional ichat/skype user, you should check this out. RevoLabs have introduced a new line of Wireless microphones that come with RF-Armor. What does that mean, well the next time your GSM phone rings/sync/receives email, your microphone won't be going all crazy. Plus their Solo mics come in three different types:WearableTabletop BoundryXLR adapter for handheld micsAll their mics use a base station that hooks up to your PC or Mac via USB (no driver needed) and show up as a sound device. As a bonus the wearable one also has a audio out so you can wear it around your neck (on in your pocket) and hook…
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OSX Webmaster special: Shared webserver, bad umask settings, group permissions and filenames with spaces…

Apple, CLI, Linux, Macintosh, OSX, Reference, Shell Script, Tricks, Tutorial, Ubuntu, Unix
Okay so this all started with our users not being able to share files on our webserver. We use SSH only for upload/download and interactive access (ie: no ftp). Through trial and error we found out that the default umask (under OSX Server) for sftp uploaded files are 0033 (ie: rwxr--r--) and directories are 0022 (ie: rwxr-xr-x). This creates a problem when one user uploads a file and another user downloads/modifies and tries to re-upload it -- they simply can't because the group permissions are wrong.If we were using ftp (which we are not) there are some solutions on the net that allow you to modify the startup parameters for the ftp server so that the default umask for all files is 0013 -- which would allow a group of…
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SONET and Telecomm buzzwords explained….

Reference, Technology
So this is just a short tutorial, so I don't have to repeat this to every person who asks about the difference between T and E circuits. Here is the whole thing (more or less), (hopefully) once and for all.It all starts with the Nyquist's Theorem and Pulse Code Modulation. PCM is the way telephones digitize audio (your voice). Nyquist's Theorem (named after Harry Nyquist) says that "When sampling a signal, the sampling frequency must be greater than twice the bandwidth of the input signal in order to be able to reconstruct the original perfectly from the sampled version". Another way of putting this is that to accuretly encode an analog signal (your voice) you have to sample it twice as often as the total bandwidth you wish to reproduce…
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Make your browser faster (safer) with OpenDNS

DNS, Reference
Okay, so this worked for me. I don't promise that it will do the same for you. Let me explain, my ISP (who shall remain nameless) is very good (good uptime, unlimited, good throughput), but for some reason has horrible DNS servers. I normally try not to use their servers and instead use either my own from work or the University's upstream provider servers. They are okay, but not blazing. Recently I was told about OpenDNS and I meant to look at it sooner, but didn't, until the servers I was pointing to went down last night. Well, I have to admit, aside from being safer (because they filter fishing sites at DNS level), OpenDNS kicks butt. It is fast as hell and seems to even have enough smarts to…
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Computer Monitor Calibration….online!!!

Flash, Reference
I came across these two sites last friday while trying to setup a projector. If you're stuck in the field and need to get a monitor/projector calibrated fairly quick these two sites are for you. First is displaycalibration.com which has been around for a while. It's simple and works well for setting up your devices contrast/brightness settings and doing simple colour setup. The second site is tft.vanity.dk. These guys are pro's when it comes to tools for LCD setup. They do the standard contrast/brightness stuff (using a very cool flash app may I add). On top of that they do ghosting tests and colour bleed tests (using their flash app). This could be really useful if you want to compare a couple of monitors in the store or if you…
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Google Earth does the Skies….

Google, Reference, Research
Google has just announced google earth 4.2 and new to this version is the Skies. Several Sky layers are listed on the left-hand side, including Constellations, Backyard Astronomy, Hubble Showcase, The Moon, The Planets, User's Guide to Galaxies and Life of a Star. The Sky layers are composed of over 1 million photographs from various scientific and academic sources.Another new feature in Google Earth is the addition of super-high resolution photo content, which you can see by adding the layer Primary Database -> Featured Content -> Gigapxl Photos. Unlike Google Street View, these photos however are only available for a few select places (like buildings), so there’s not a lot of random fun stuff to be found.So go download your free copy, install and hit "Switch between sky and earth".…
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