Glo Networks Technical Blog (Glo Blog)

Glo Networks team sharing their technical experiences and thoughts.

OSX Lion is Upon Us

2011 July 20 – 5:03 pm

Lion on AirAfter being unveiled to the public some 9 months ago Apple’s new operating system sees its release today. So congratulations expectant Apple fans: It’s a Lion! Or OSX Lion to be more precise.

As the newest edition of Apples popular OSX family of operating systems Lion has great pedigree. Previous OSX versions (Tiger, Leopard, Snow Leopard etc.) have been very well received. But when you look at the interface changes and new features in Lion another source of inspiration is also apparent; Apples iPhone and iPad operating system iOS.

OSX Lion is available from today, from the Mac App Store, for £20.99. Unlike other OSX releases there is no hard copy available; it’s a download only purchase.

We’ve not yet had a chance to play with Lion but rest assured, once we’ve got our teeth into it we’ll report our thoughts on the new OS here on the blog.

 



There’s a Microsoft TechNet article called ‘Ten Immutable Laws Of Security’. It discusses ten security problems that the Microsoft Security Center feel cannot be ‘fixed’ by software. These are persistent problems that won’t be solved by an update from the software manufacturer but by following best practice and using good judgement. The ten laws are as follows:

Law #1: If a bad guy can persuade you to run his program on your computer, it’s not solely your computer anymore.
Law #2: If a bad guy can alter the operating system on your computer, it’s not your computer anymore.
Law #3: If a bad guy has unrestricted physical access to your computer, it’s not your computer anymore.
Law #4: If you allow a bad guy to run active content in your website, it’s not your website any more.
Law #5: Weak passwords trump strong security.
Law #6: A computer is only as secure as the administrator is trustworthy.
Law #7: Encrypted data is only as secure as its decryption key.
Law #8: An out-of-date antimalware scanner is only marginally better than no scanner at all.
Law #9: Absolute anonymity isn’t practically achievable, online or offline.
Law #10: Technology is not a panacea.

 

While the entire article is interesting and raises several very good points today we’d like to focus on Law #5 – Weak passwords trump strong security.

Passwords can be and frequently are a pain in the neck but they are a necessary evil. Currently they are simply the best way to verify the person accessing the computer/program is who they say they are.

That isn’t to suggest that they are the only way. Several other methods have been tried; facial recognition, finger print scanners and RSA Keys are just a few such methods. They all have their strengths and weaknesses but for the most part where they fail when compared to passwords is ease and convenience of use.

The problem with this is ease and convenience are the downfall of secure passwords. A short, simple and easy to remember password won’t stand up against an attempt to crack it for long. For a password to be secure it needs to complex and not easy to guess, and as such the securest passwords are generally randomly generated strings of letters, numbers and symbols, the longer the string the better.

But the average person will struggle to recall a 64 character string of characters that means nothing to them, so instead they trade off better security in favour of convenience. A quick read through lists of the most popular passwords reveals that many people will chose overly simple or easy to guess passwords such as ‘123456’ or simply ‘password’.

Somehow a compromise must be made.  Passwords should be as long and as complicated as possible, while still being memorable. One suggestion we at Glo Networks can offer is, rather than just a word, why not use a phrase for your password? Switch some letters for numbers/symbols and make sure it’s a phrase that will stick with you whilst not being obvious.

Here’s a quick example of how you could change a phrase to a decent passphrase:

spend a penny’ becomes ‘Spend4penEE

Using this method it becomes much easier to create a longer password that you will quickly remember every time!

 

 



The Snipping ToolWhen you’re looking for help with an IT problem a simple screen shot can be a powerful ally. Most Windows users are aware of the Print Screen key and its function (to capture what is displayed on the screen/s and copy it to the clipboard). A small drawback to taking a screen shot this way is the necessity to paste the captured image from the clipboard into another program in order to save it.

Because of this here at Glo Networks we receive a large amount of screen shots saved inside Microsoft Word files. While this isn’t exactly a problem it does make the files slightly larger than necessary and also increases the time it takes for us to open them (as we don’t always have Word loaded). This is where the Windows Snipping Tool can be very useful

The Snipping tool was introduced in Windows Vista and is also present in Windows 7 (though not the Home Basic edition) and Windows Server 2008 R2. Its function is to take screen shots, and it offers some handy tools to do so. You can chose to take Free-form, Rectangular, Window, or Full-screen screen shots, or Snips as it calls them, and then you can immediately either Save the Snip to file as a PNG, JPG, GIF or MHT file, or insert the file to into a new email (either as an embedded image or a attachment). It also includes a pen tool to make simple annotations to the snip and a highlighter.

The Snipping Tool is incredibly simple to use and perfect for its purpose. Spend a little time checking it out and you’ll get to grips with it in no time at all, or you can check out instructions on its use here

 


End of Support: Windows Vista SP1

2011 May 24 – 9:58 pm

Support for Windows Vista Service Pack 1 (SP1) ends on July 12 2011. As always this means Windows Vista SP1 will no longer receive software updates from Windows/Microsoft Update, including security updates.

If you’ve still got Vista devices deployed on your network we highly recommend that they are patched to SP2.

As always, if your devices are managed by a Windows Server Update Services (WSUS) server, you can enforce SP2 from there. If your WSUS server is running on Windows 2003 be aware that you may need to install another KB article in order for it to be picked up correctly. Full details over on Technet.


Outlook File Association

2011 March 3 – 9:03 am

For some time now my install of Outlook 2010 has been able to preview Word documents ok in the reading pane but the full file association has been set to Adobe Illustrator. If I save the file out to the file system and double click it, it works perfectly. So the issues is something inside Outlook only ?

A lot of digging around and finding everyone offering fixes was just doing the usual Windows file associations I found this.

Was rather concerned about running an exe from an unknown site but after some exhaustive scans I took the plunge. Fixed the problem first time on my Windows 7 x64 box. Big thank you to winhelponline.com, would love to know what it does though :) .


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