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| I n f o B u l l e t i n |
| coopsys .net |
June 2004 |
| IB |
In this issue:
Security tips, Defending your network, The public Internet, Email fraud, Silent users
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| **** NewsBytes **** NewsBytes **** NewsBytes **** |
| Broadband deals |
Fast Internet connectivity continues to explode in its diversity of services. Here are some of the latest offerings.
Cheaper:
A new low-end barrier for full-speed, 512Kbps broadband claims to have been broken with a £14.99 per month service called from Home Lite from PlusNet. The 1GB bandwidth allowance is tracked and capped at £2.99 per month, similar to market pioneers MetroNet and BT's recent "Basic" service.
Faster:
Speed leaders Bulldog Communications have launched a special offer 8-times-broadband 4Mbps service for £39.99 per month, but the full 4Mbps is only at off-peak times, returning to standard 512Kbps at 'prime times'.
More:
On the cable front Telewest has upped its Blueyonder speed offerings by 50% across their broadband range, with 2Mbps £50 per month subscribers being supersized to 3Mbps, for example, all with no charge increase. Clearly not pulling their punches then.
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| Recycling: Skip the skip |
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As they say: "A place to advertise all that old computer junk that you want to get rid of but can't bear to chuck it in a skip". Couldn't have put it better. SkipDotOrgDotUK. Nuff said.
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| Internet flawed |
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A previously-discovered flaw in the basic protocol of the Internet, TCP/IP is more likely to be exploited following proof-of-concept trials. In other words if can happen, it will. The possibilities are that attackers could inject packets into TCP streams as they pass between hosts, say, breaking off a communication session or causing Denial of Service (DoS) attacks. Many routers could be affected, but particularly those that make use of Cisco's Border Gateway Protocol (BGP) employing long-persistence packets. The Unified Incident Reporting and Alert Scheme (UNIRAS) lists vendor-specific fixes and a detailed description of the flaw is available at CERT, but the long-term solution will be for all Internet-routed communications to move to secure IP (IPSec).
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| Outsourcing trends |
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If you've outsourced all or part of your IT functions within the last 2 years, you're in good corporate company. A study of the 100 largest outsourcing deals by IDC in Western Europe for 2003 showed a 74% leap to US$44.1 billion on the previous year. While your outsourcing budget probably doesn't rank comparably alongside the likes of IBM Global Services, this report does indicate where trends are heading.
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| Free Investment Guide |
Written in Plain English that first time investors will understand, The Charities Aid Foundation, (CAF) has a free Investment Guide that can be requested direct from their web site. With the help of a glossary of investment terms, the guide explains some of the complicated issues surrounding investment decisions and is aimed at people entrusted with the responsibility for long-term finances for their charity. Find the CAF Investment Guide by looking for the 'wood for the trees' photo.
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| Windows slips from MS grasp |
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In the ongoing court case between Microsoft and Lindows, the latter's case that the word 'windows' was indeed in generic use before 1985 - the year when Microsoft Windows 1.0 was launched - looks likely to be upheld, trumping Microsoft's claims to the much fought-over word. The case over the ownership of the word 'Windows' continues later in the year with Linux® distributor Lindows seeming to have won the first rounds at least.
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| Oxfam's Big Noise |
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Oxfam has just jumped into the increasingly crowded arena of music downloads with its Big Noise Music site. Over 300,000 tracks from 12,000 artists are available from day 1 and cost from 75p, with 10p in every £1 going to the charity.
With offerings from big names like Coldplay and royalty-friendly George Michael, Big Noise Music is bound to be a hit with low-end donors, being cheaper than the relaunched Napster channel.
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^ Back to contents ^
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1. Simple security tips
A short state visit from a US president may make your average night's hotel bill seem like a bargain, but have no doubts - effective security isn't bought in discount shops.
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The good news is that most of the cost is upfront, not ongoing.
Furthermore, it doesn't all have to revolve around laying out precious cash for high-tech IT equipment; some simple planning and forethought and simple practical measures can enhance organisational security enormously.
Nailing it down
For want of a nail, the shoe was lost,
For want of the shoe, the horse was lost,
For want of the horse, the rider was lost,
For want of the rider, the battle was lost,
For want of the battle, the kingdom was lost,
And all for the want of a horseshoe nail!
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"For want of a nail" - the story of a trivial failure escalating into a global crisis.
A guy strolls who into the premises and ends up scouting around the corridors looking for 'suitably liftable' gear claims to be :
- on his way to another organisation in the building
- carrying out some sort out of building maintenance
A familiar tale, no doubt, but often no one questions these impostors, and their boldness makes them seem perfectly plausible.
Only in this particular case, the crucial nail referred to was the one that could have nailed the server down to where it was to be located and from where it disappeared some moments later.
Nobody queried the sight of an armful of fresh, unboxed machine being hurried away with cables still trailing.
- Lesson 1: Don't underrate the benefits of physical protection
A dedicated lockable 'server room' is ideal but can be expensive or out of the question if space is at a premium. A lockable racked cabinet is a good second best and occupies little more square footage than your average filing cabinet.
- Lesson 2: Teach users to challenge strangers
... gently of course. Nevertheless, wanderers in the building who look lost may be faking it.
- Lesson 3: Make use of the reception function
If you have Visitor Authentication and/or sign-in procedures, don't slack up - use them. Simple sign-in books or daily stickers are low-tech, easy checks to implement, where you don't already have them. Your reception area doesn't have to be a double-door 'airlock-style' tunnel (unless your potential thieves are also terrorists), but it's a one-stop-shop security model that is non-technical and to which that visitors are accustomed.
Beware the headbangers
It's the daft problems that always surprise us.
Have you heard the one about the information officer who went into the server room to get a spare writeable CD? In bending down he banged his head on the router box.
Three days later the router power lead fell out and all the organisation's Internet connections and branch office links disappeared!
Yep - that one is a true story.
Easy to fix too, just by re-inserting a little black power plug. And yet, just a little care could have avoided a few hours downtime.
- Lesson 4: Lock your server room or cabinet
If you don't have a dedicated room, label your sensitive equipment (server, UPS, switch, firewall box/PC, routers) with large warning notices to deter prying fingers.
- Lesson 5: Provide ample access to the back of server PCs
The "reaching round the back" syndrome is a common cause of pulling out the wrong plug, loosening mains connectors or in dire circumstances, electric shock.
- Lesson 6: Keep your consumables handy but separate
Just because printer cartridges, toners, CDs and floppy discs come under the heading of "IT", don't bracket them in the same category as live data-carrying equipment. A few missing consumables is more tolerable than a missing data link.
For want of a nail, the battle was lost
But in modern parlance ...
For the sake of a few pounds, the risk could be lowered.
Contacts
Learn more about security issues.
-IB-
Acknowledgements: Adrian Hallet, Phil Anthony, Christopher Harris
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2. Defending your network: from outsiders
Shrugging off hackers that say "Boo!"
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"Our chief weapon is surprise..., surprise and fear... fear and surprise....
Our two weapons are fear and surprise... and ruthless disruption....
Our three weapons are fear, surprise, and ruthless disruption.... and an almost fanatical devotion to .... chaos?
Well, whatever the motives of hackers, script kiddies and malevolent intruders in general, they don't count drying racks and comfy cushions amongst their array of weaponry.
Defenceless, infected and corrupted computers out there continue to cause annoyance to the rest of us by sending faked emails, viruses and executing Trojan instructions by proxy on behalf of their malicious creators. Without protection, new computers are often scanned and targeted as ripe for planting hidden programs within minutes of connection to the Internet - we've see it happen.
Regular readers can't have failed to notice by now that we are unapologetically plugging security as the hot issue of 2004 because firstly, that's one area where popular computing systems are being targeted as vulnerable, and secondly - indeed crucially - the consequences of turning a blind eye can waste enormous amounts staff time or worse, even cripple your organisation's communicating structure irrevocably when fixes become too expensive.
Protecting PCs
The 4 main areas of vulnerability where PCs can be 'surprised' and that need protection are :
- anti-virus
- firewall
- Windows system
- anti-spyware & anti-adware
Since techniques for discovering vulnerabilities in software and operating systems never stands still, all of these measures need updates and most of those now provide mechanisms do that automatically with little or no human intervention.
Protecting Servers
The same measures apply to servers, though caution should be exercised when applying any type of patches or hotfixes, preferably by doing tests in advance; if it goes haywire, you can't suddenly substitute another server at the drop of a hat! For this sort of work the experience of Co-Operative Systems will be at the disposal of clients who have taken up Facilities Management (FM) contracts.
Windows isn't the only fruit
Linux Unix and the applications that work on top of them all have flaws but intruders prefer to prey upon the more technically-naive users with Windows-based systems (by far the most common desktop operating system) - at any rate for the time being.
That last qualifier is an indication that nothing can be taken for granted.
Also holed below the water line are
- Secure Sockets Layer SSL protocol, used for secure web transactions
- H.323 as employed by the rise of Internet telephony
- TCP/IP, the basic communication language of the Internet itself (see Internet flaw news story in this issue)
A watchful security eye is the best form of defence, but it becomes paramount to stay on the ball if you have multiple job roles to perform, as is frequently the case in charities and the voluntary sector.
That defence is part of a service that Co-Operative Systems provide efficiently for customers by doing it en masse, heading off threats before they become problems. Ask us for more details.
Contacts
Learn more about security and firewalls.
-IB-
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3. Defending your network: from insiders
Bring out the nanny in you: protect computer users from themselves.
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Hustle-R-Us
While the majority of the apparently well-behaved charity and voluntary sector is blissfully ignorant of the consequences of attempts at internal hacking - a pleasure often 'enjoyed' by unis housing throngs of computer science students eager to experiment - the well intentioned nature of this group can often be, er, diverted, let's say.
That means them being tempted from outside, by an email or rogue web site perhaps. Once a legitimate communication has been established or initiated from inside your ring-of-steel, ie from their PC, it's harder for purely technical means like firewalls to prevent.
Time to educate users with such basics as:
- A reminder that the Internet really is a public place. The bottom line is that, unless data is sent with some form of encoding, expect that other people could have access to it.
- The one about common sense: Not 'falling for the con'
- Hoax emails: not opening attachments in unsolicited emails, usually out of curiosity
- Not installing dubious software to try it 'for fun'
- Sites that 'phish' for confidential details like the banking example explored in this issue, and when to expect secure pages
The originators of such tricks all play upon perfectly normal human attributes and, in a work context, this chiefly amounts to succumbing to a temporary distraction.
The "Personal Computer" it ain't
The label "PC" has a lot to answer for when it comes to users' (mis)understanding of the importance of the equipment they are given. Ever since we started joining up computers, the resultant networks suddenly became more than the sum of their parts and the total cost of ownership (TCO) of a client machine is a great deal more than the number at the bottom of the sales invoice.
So it's worth conveying to in-house users the difference between the networked machine they sit at and the similar-looking fun/media/household/hobby console they use at home.
An Acceptable Use Policy for IT will help here in providing general guidelines for staff and volunteers.
Straying slightly further from the 'corporate' regime and more into the realms of 'global IT citizenship', it also worth emphasising that a virus-crippled PC may be of some inconvenience to the owner at home but, when connected to the Internet, its damage can be inflicted on tens of thousands of computer users globally and may be best disconnected altogether until remedied.
Contacts
-IB-
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4. On the Internet, everyone can see you type!
Telecoms are private, but the Internet is public.
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It is still the case that the content of phone calls must be remain legally private (though moves are afoot to make times and logs available to a wider range of authorities), unless a warrant requesting access is sought, say by government intelligence agencies.
However, when your send data via the Internet, that only remains true for the time it takes your data packets travel to the nearest exchange, whether that's broadband, phone or cable.
Remember that first time you started a new browser and saw this dialogue box?
Chances are that, like most of us, you realised it was going to pop up every time you filled in a login screen or survey form. Tick the box and away it goes!
Because it was aeons ago, we forget it was there to remind us the Internet is effectively public unless we code or encrypt the data we send. It says, "Look mate, no guarantees of privacy here!"
It doesn't stop there. Ask your systems admin person.
Oh - that's you, maybe!
If you are the 'sys admin', you know you can already access all the emails for your organisation (like you have time!) and trace all the browsing activity (through a web log) and know where people's surfing habits (by tracking web cookies).
Now extrapolate that to the typical dozen or so servers and routers that your email passes through and realise they all their own admin personnel with similar rights and capabilities.
Private investigations - Dick Tracert
You want proof?
| Hop |
Router name |
IP Address |
mS |
| 1 |
gw12k-hex-g2-0-gbic.uk2net.com |
213.239.57.1 |
0 |
| 2 |
217.163.4.33 |
217.163.4.33 |
0 |
| 3 |
ae-0-12.gar2.London1.Level3.net |
212.187.131.48 |
1 |
| 4 |
so-6-0.metro1-londencyh00.London1.Level3.net |
212.113.3.30 |
1 |
| 5 |
linx-1.router.demon.net |
195.66.224.12 |
1 |
| 6 |
anchor-service-2-3-8.router.demon.net |
194.159.7.205 |
2 |
| 7 |
tele-service-22-WDM-601.router.demon.net |
194.159.241.69 |
2 |
| 8 |
tele-service-1-fxp0.router.demon.net |
158.152.0.28 |
2 |
| 9 |
no-dns-yet.demon.net |
194.159.243.245 |
2 |
This is a nice introduction to a utility called tracert, that goes further than the simple ping - a utility which must surely have the dullest exchanges known to computing, its conversations being limited to:
"Hello, are you there?"
"Yes, I'm here".
tracert can be found on any post '95 Windows computer and is run simply from any command line, eg "tracert coopsys.net".
It leapfrogs ping in listing all the machines your communications pass through to get to the final destination, each transfer being called a "hop". The name of each routing machine is shown along with the IP (Internet Protocol) number and the number of milli-Seconds the transfer lasted. Clearly the largest ISPs and companies will have many such routers and, because those are hooked together on fast internal networks, will display short transition times. Communication between routers in distant countries may take tens of milli-Seconds by comparison and perhaps 20 or more hops.
Some of the "routers" in the list may be black boxes just redirecting packets of information but other may be mail servers that store and forward vast quantities of messages. Add to this the fact that email is stored by ISPs, often for at least at least a week and you begin to get the 'big picture'.
In summary, the "Internetwork" is a great way of sharing information, but it's truly public.
Treat it as such.
Related articles
Deleting an email backlog InfoBulletin March 2003
-IB-
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5. Email fraud? Bank on it happening to you
Another round of online hoaxes, but this time they're slicker and they want your bank details.
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Fake emails purporting to be from our friendly bank service are increasingly popping into our inboxes and, until recently, the crude attempts at wheedling confidential information out of the recipients have been easy to spot - even laughable.
However, the latest forays into what's become known as "phishing" in the 'land of the con' have notched up the quality of the trickery by a gear of two.
Having failed to beguile people into giving away their security details via plain text emails, fraudsters are now heading down the route of faking whole web sites, or in this case just the login page.
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Subject: Barclays IBank informs
you!
| BARCLAYS Will do
it |
OnIine banking |
Details
Confirmation let's part friends
SECURITY
ALERT: PIease read this important message
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As the Technical service of
bank have been currently updating the software, we kindly ask you to
follow the reference given below to confirm your data, otherwise your
access to the system may be bIocked. settled in
1849
PIease
foIIow the link below to fill the form "DetaiIs Confirmation": MGM
http://www.personaI.barcIays.co.uk/goto/pfsoIb_Iogin
Paris Female Cars |
in 1999 The Holocaust in 1975 Lockerbie blame
?? ??? in 1971 in 1822 Thanks for visit
When it was American Express No thanks
Jokes
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Check the email
We picked one of a number of messages of this ilk and a short analysis of a typical example (right) helps us to understand why they appear to deceive so effectively and to deflect such attempts in future.
So the intention of this particular con is to make the recipient feel the communication is bona fide and the subsequent web page (which we'll analyse shortly) is also genuine. Look out for:
Poor English grammar with capitals in funny places
Vague phrases like "updating the software" (unspecified) don't sound like the sort of edict to be issued from a major multi-national.
It's not even a secure page they're taking you to - the HTTP:// is right there in front of you, even though you can't trust much of what's on this page
The astute may have spotted that the capital "I" replaces the lowercase "l" in the address, but are virtually indistiguishable in this Arial sans serif font. Paste it out in a different font and it immediately raises suspicions:
http://www.personaI.barcIays.co.uk/goto/pfsoIb_Iogin
Not an entirely necessary dodge you may think, but perhaps it's a poor attempt to avoid legal accusations of 'passing off' as the real Barclays iBank service.
Now if you're really on the ball, you'll be wondering what all that white space at the bottom is about - easy to overlook in an email. A simple swipe with the mouse instantly reveals a whole bunch of obsured text ("Paris Female Cars", etc).
That last test is the quickest and most useful foil to test suspicious emails with. It's literally reading between the lines!
Press Ctrl+A to highlight the lot; you'll see more textual clues to the cover up - try it now.
Check the web page
Let's move on to where the link takes you - the fake iBank web page, a remarkable look-alike of the genuine article.
If you've missed all of those clues, the destination web page - where the fraudsters would like all and sundry to type in their most confidential bank details - still gives itself away.
- Analysing the link, we see that the actual destination is not the one in the link at all but:
http://www.personal.barclays.co.uk.userset.net:4903/b/index.htm
- The page has removes all the navigation control buttons and the address bar to prevent the visitor seeing where they've landed up.
Right-click the page and select Properties to see the real address.
- By clicking Continue, and without filling any details into the form at all, we find that it skips to a second acknowledgement page without querying the lack of information. Omitting a check of empty fields might allow a flood of blank submissions and is indeed included on the genuine site.
No doubt, the rogue page will soon be forced off its site by the web hosters.
The genuine article
The genuine iBank personal banking link is here:
https://ibank.barclays.co.uk/fp/1_2d/online/1,,logon,00.html
and, naturally, it's an encrypted page using the secure version of the HTTP protocol, HTTPS (https://) .
You'll not be surprised to find cautions about fraud plastered on the real page!
Related articles
-IB-
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6. The suffering of the silent (wo)man
It took a leading Conservative politician to make this much-overlooked breed famous, but have you been ignoring the shyest of your computer users?
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Shouty users always get attention!
... but what about the SILENT ONES amongst your colleagues.
I first discovered this phenomenon in the mid-nineties (those post-boom, pre-Bubble nineties). Sometimes a whole year would go by, and in all that time, certain staff would have never asked for advice or sought to have an IT problem solved, despite a regular weekly social banter over coffee or lunch.
| The most successful politician is he who says what everybody is thinking most often and in the loudest voice. |
| - Evan Esar, Treasury of Humourous Quotations |
In my various IT manager guises I've often polled the SILENT ONES every month or so just to make sure they're not covering up some enormous IT issue. The reasons for this can be anything from excessive modesty to the embarrassment of exhibiting ignorance of simple techniques.
To coax the timid out of their deskbound shells, you don't have to be an IT expert; approach them from the standpoint of "Is there anything you would like to do better or more efficiently?".
You only have to look through IB's "Clicks of the Trade" series of tips to find something that will make computing life easier for them.
Checking the mental well-being of everyday PC bashers is like monitoring a pulse. But if there are any major problems, you should catch them before it needs the defibrilator!
Sometimes it's that they have naturally 'retiring' personalities, but mostly nothing arises because they are "just getting along OK".
Not a murmur too soon
Though most users will suffer in silence, they will only do it for so long.
And then what happens?
This modest type of individual isn't one to fly into a rage, demand a full IT review or stage a one-user banner-waving protest at reception.
It's worse than that.
They turn to DIY methods.
And it's not out of malice driven by frustration. They simply don't want to bother anyone.
| Scenario |
DIY Symptom |
Consequences |
| My Excel crashes |
Jenny gave me her password so I can use the Excel on her PC |
Inefficient use of staff time |
| I'm worried my email has a virus in it |
I send stuff out via my own private webmail account instead |
Issues of organisation security and confidentiality |
| My PC always gets slower after half an hour so |
Either I restart it or use the one in the library |
Wastes time, uses up resources intended for the public |
| Typical but fabricated examples based on experience! |
The solutions to the everyday problems here could easily be simple ones:
- a reinstall of Excel
- a quick virus check and AV-updates check
- a scan of the disc for ad-ware or spyware
Without reaching out to the SILENT ONES, the causes of their DIY workaround behaviour will never be unearthed.
This group often comprises very competent users, but their self-contained nature can also be self-defeating in the long run. By failing to keep up to scratch their base-level experience of a wider range of office applications, their IT skills remain specialist rather than broad.
Spotting the types:
- Accounts people go through a major audit, exhibiting Sage and Excel skills that would knock spots off some leading trainers in the field, but fail to print Word documents without continually attempting to feed US letter size paper instead of A4, so end up transferring to another PC for printing.
- The press officer frequently sends hundreds of emails in a day, and successfully too, but lacks the database skills to segment addresses by media category and instead employs an awkward arrangement of address books and email folders.
How to make it happen
This kind of looking-over-the-horizon may only rank way down the bottom of your To-Do list, but can win you Brownie points in the touchy-feely department and even persuade the shyest violet to consider piping up next time, instead of bottling it up.
Like the pupil in the class who dares to ask to the question on everyone's lips, you may uncover some wider IT issues, but that's all to the good. Better out than in, as they say.
If that hasn't convinced to pull it up your To-Do list a notch or two, why not add it to ours? It's the sort activity that comes as part of our Facilities Management (FM) contracts, heading off IT problems before they raise unexpected consequences.
Related articles
-IB-
Paul Craig
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Clicks of the Trade - 4 ways to rename a file
--- Quick tips for happier clicks! ---
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How to make it happen
Pretty pedantic, you might think, but we thought we'd put this in here just to show how many Windows techniques there are for one function and how overlooked some of those techniques are.
First, left-click on the filename or file icon once.
Then choose one of these:
- Pull down the File menu and select Rename
[File | Rename]
- Right-click, Rename
- Hold down the "Alt" key and press "F". Now press "M"
[Alt+F, M]
- The slickest of all: click once on the file name.
NB. If you are clicking twice in succession (one to highlight, one to rename), it must be done with a pause, otherwise you will attempt to open the file instead.
Now type the new name.
** try it now **
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-IB-
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Overview of InfoBulletin
InfoBulletin is written and published by Co-Operative Systems and contains Information Technology tips that we come across during everyday research and support activities and which may be useful in improving your IT operations, either internally or on the Internet.
E&OE
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CO-OPERATIVE SYSTEMS
Interpreting Information Technology
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