Paragon NTFS for Mac® OS X

There is little or no clamor in the Windows XP community for better stability or reliability. Windows XP is a mature, stable OS with a well-known list of weaknesses and corresponding work-arounds. On paper, Vista brings a better foundation, but in practice, it addresses problems that most customers weren’t aware even existed, let alone needed fixing.

Source: PC World

This exactly correct — a nice, succinct encapsulation of the policy our little circle of tech gurus formed well over a year ago: just say NO to Vista.

Surprising, the inadequacy of Vista coupled with the urge and desire to modernize has pushed many corporate users (and users of all kinds) to another stable and mature OS: OS X.

It was engineered in a ‘closed system’ — ‘bad guys’ did not exist.

The need to scale to billions of users worldwide was not properly anticipated in the design.

Today we are left with a patchwork of underlying vulnerabilities and inconsistencies, made better or worse by higher-layer duct-tape fixes that sometimes even conflict with each other.

One of the technologies currently in use is Sender Verification. In short, when a server verification-enabled email server receives an email message, it queries the originating server, asking it if such a user exists. If one does, it approves the message; if one does not, it denies the message, and may go on to take further steps, such as blacklisting or greylisting the sender or the sender’s email server.

For this setup to work, it requires careful configuration, especially of the DNS records, for all the servers involved.

—~∞~—

We just solved a bizarre error related to this setup. In this scenario, users were getting their outbound emails blocked with a “550-No Such User Here 550 Sender verify failed” error. The emails were failing the sender verification, but only for one particular domain.

After some time and some troubleshooting, we discovered it was the same error that Mick West wrote about. It was a cpanel server, and the destination server was ostensibly hosted on the same server as the originating server. In actual fact, while the website, or A-Record (in global internet DNS) did in fact point to that server, the MX-Record pointed elsewhere. However, the internal DNS did not reflect this.

So, while email sent from any other server would check the global DNS and find the right mail exchange server to verify the email address with, any email sent through the same server (for example, by the users in question who were experiencing and reporting this error) would draw the incorrect MX record from the local (to that server) DNS. When the server would then try to verify the user, (actually against itself, istaed of the real mail server in this case) that verification would fail.

We changed the local DNS copy of the MX record, and the problems disappeared.

—~∞~—

Your Computer Genius is available to configure your hosting solution, establish sender verification for your domain, troubleshoot your DNS, setup your corporation or institution on a Google-Hosted service, and resolve all your computer woes.

The best hardware platforms and factory hardware / software setups are being made by Apple in California.

The ideal system for the small business or home user is the iMac.

If portability is required, then the ideal system is the MacBook.

Users may run Apple’s OS X, Microsoft’s Windows XP, and any of a number of flavors of Linux on these systems. These operating systems may be also be configured to each be available on a particular machine.

There are several further considerations:

• If the primary concern is budget, then we still recommend scanning the Dell Outlet for their cheapest offering.
• Apple does not offer a Tablet computer at this time, however there is at least one company that professionally remixes MacBooks into a tablet version.
• We don’t recommend running Windows Vista on ANY hardware platform at this time.

Links:

Apple Computer

Dell Outlet

Linux on a Mac

Millions of websites suffer the ignominy and shame of having hardcoded filenames
on their websites such as:

http://example.com/index.html

or unsightly url’s for their (sometimes dynamic) subpages, for example:

http://example.com/blog/post.php?post_number=1045

.htaccess and mod_rewrite can dramatically change these unfortunate websites for the better. They may become

http://example.com

and

http://example.com/blog/post/1045

Not only will the new names be easier to read and more intuitive, they will also be search-engine friendly and one step closer to a proper RESTful methodology.

For a good introduction to .htaccess, see:
http://www.crucialwebhost.com/blog/htaccess-apache-rewrites-oh-my/

There is a good mod_rewrite “cheatsheet” here:
http://www.ilovejackdaniels.com/cheat-sheets/mod_rewrite-cheat-sheet/

For more reading on RESTful principles, see:
http://en.wikipedia.org/wiki/Representational_State_Transfer

Linksys NAS200

Presenting the Linksys NAS200. Finally, NAS manufacturers are starting to take notice of what their business and soho end users want: cheap RAIDed network storage. 

Unfortunately, there is still one component largely ignored by manufactures: Wireless-N support. Many models (excepting this one) are now supporting gigabit ethernet, which is a terrific step in the right direction. But for true standalone, plug-and-play integration, end users should be able to eschew the wires, and take advantage of the three fold speed increase (over 10/100 ethernet) that MIMO 802.11n offers. 

Another component useful for the small business or home user would be integrated power protection. Not everyone uses UPS systems for their auxiliary data storage, though they should. Few non-enterprise end users have power conditioning units or proper power protection at all. However, few network storage vendors provide built-in power management.

A simple low-capacity, self-charging battery and a simple safe shutdown procedure would be right at home in the heart of every NAS, be it soho or enterprise bound.

(The link above saves you $24 on the Linksys NAS200, valid 2/12/08-2/22/08).

reCAPTCHA is not your normal “CAPTCHA” program.

CAPTCHA is a general name for the anti-spam, anti-abuse code that people place on their websites, especially on comments sections for blogs, or new account registrations, to prevent bots or automated computer programs from exploit or over-using web services.

As they state on their website, 150,000 hours of human time are spent solving CAPTCHA-style problems, or filling out CAPTCHA-style forms.

reCAPTCHA captures and channels that energy, adapting it to a useful and usable form — namely it aids in transcribing text from digital images into text, forming a critical link in the digitizing of physical books and the archiving of human knowledge.

The reCAPTCHA system uses this available source of human work to help with this archival process when automated OCR runs into problems.

You can tap into this system for free, and use it on your website to filter out spam and non-human users, all the while aiding this noble project.

Do you spend a lot of time in FTP programs, or perhaps SFTP and WebDAV?

If you are not regularly backing up your files, you should be.

Every time you make more than just a minor change — and even then, if there is risk of corruption — you should have a backup.

Backups to your local machine work great in these days of fast connection speeds and cheap local storage.

The best way to not spend an inordinate amount of time doing this is to use a mirroring algorithm, one that checks the files based on modify date and time and automatically only downloads the ones you need.

Keep a local directory on your hard drive that you use for these “mirror-downs” — when you need to make a backup, which should be often, initiate a mirror-down. When it is finished, simply duplicate the directory and retain the duplicated directory as a dated snapshots of your remote servers. Leave the mirror-down directory active: it will save you tons of time the next time you need to backup the particular remote server you are working on.

Always following the same, efficient path will cut down on the time you spend backing up, and the results of following this methodology will pay off in spades the first time you need to restore one file.

If you are running Mac OS X, Panic makes a great piece of software calledTransmit. You can pick up a copy for a reasonable $29.95, and using it’s “mirror-down” and “automatically detect server time offset” features will garner you an incredibly high ROI.

Submitted by Your Computer Genius on Fri, 2007/09/21 - 6:35pm.

Simply put, Apple’s line of iMacs are the best choice for desktop consumers.

Apple recently has begun making what is universally considered far-and-away the best meld of hardware and software, from boot to shutdown. Apple’s engineers have been doing amazing things with software that works not only on the new Macs but also on all Intel-based machines, including those running windows.

For example, Bonjour is a zero-configuration networking protocol that literally connects your shared printers (among other things) in milliseconds.

There really are no negatives to this one. IMacs come standard with WiFi, Bluetooth, USB 2.0, DVD-Burners, and the whole host of Mac OS X Software (built-in PDF manipulation, the journaling file system). The open source remote desktop software built for OS X, CoRD, works far better than Microsoft’s own client, either on the Mac or PC.

Apple has long been criticized for being more expensive, pound for pound of raw power. But years of paying attention to the details make purchasing an iMac (or Mac Mini, or MacBook) worth every cent.

Of course, you can run Windows natively on these (or in a Virtual Machine) but why would you? Mac and PC formats for every file have been completely compatible and 100% interchangeable for years.

Apple is making the best computers out there these days, and of these, the iMac is the #1, top-flight recommendation for desktop consumers, businesses, and power users.

Dell has released a new line of laptops named “VOSTRO.”

These are exciting because they herald in a new era of hardware/software suppliers’ accountability to their customers.

New computers are routinely flooded with a bevy of ad-supported and other gimmicky software before leaving the depots. Dell has changed all that with the VOSTRO. As part of the machine-building process, Dell allows customers to modify the nitty-gritty details of the software that they are receiving.

It lets the choice of precisely what is installed fall to the customer, which in the case of small companies, may equate to hundreds of dollars of IT time which would be otherwise spent mindlessly clicking “uninstall.”

Linkage: Dell’s New VOSTRO Line of Laptops