Anti-Virus and Anti-Spam on Unix | ||
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In this issue:
The volume of junk (spam) emails, pornographic content and virus's arriving through email servers has seen a massive increase over the last few months. PALLADIO is Centreline 2000's product for providing your Unix mail system some security. PALLADIO can prevent a range of different levels and types of attack on your system:
Files can be "quarantined" so an administrator can check files and pass them on where they are legitimate, or take action where they are not. WHY VIRUS CHECK ON UNIX/LINUX? There is a misconception that because there are very few viruses on Unix that there is no need to virus check. But this ignores the setup where Windows uses connect their PC's to the Unix host for file storage or mail transfer. It also avoids the uncomfortable fact that as Linux becomes more common, viruses targeted at Linux and Unix machines will also become more common. If you want more information on mail security see http://www.c2000.com/products/uao_pal.htm If you want a sample of Internet Usage Policy then go to http://www.c2000.com/papers/wt_inet6.htm
SCO announced this week that it would be increasing its involvement with Linux and the pursuit of Linux service revenues. It also intends to transfer some of its key technologies (for example NonStop Cluster for high availability) from the traditional SCO and UnixWare platforms to Linux. Crucially SCO's UnixWare and Open Server platforms are basically expected to go on a maintenance schedule. They'll be kept up-to-date, SCO claims, but they'll be no new kernel development on them. Now of course SCO is not quite ceasing all Unix development, it does have the Monterey project running with IBM, but nevertheless SCO ceasing pro-active development on its core Unix products is a big deal and a major endorsement of Linux. SCO has made this announcement in advance of poor results again, which although SCO are blaming Y2K for this (what?) I think you can also assume that Linux is making a very heavy dent in their revenues.
Windows 2000 adds a new entry not unlike My Documents to the desktop. "My Network Places" is essentially a list of networked drives on remote computers. Network places can also hold FTP sites too, which is quite useful for heavy FTP users. To add a My Network Place just do this:
The new Network Place is listed automatically. They are actually stored in your user profile under the NetHood folder in "documents and settings".
Post Y2K a lovely little glitch in SCO Unix has become much more apparent. If you set a creation date on a file that is after today, you can see it, but when you try and open it your application just locks up! Very subtle and very, very irritating. Why does this happen? Most likely because when you re-booted your SCO box the date has been reset back to 1970. Just use the date command to set the date to 2000 and all will be restored.
You want to resize a specific object on one layer so that it fits exactly the background underneath? Making web buttons, need to be able to fit the icon to the button? Got a photograph of a building that looks like its falling over because of perspective problems? Need to rotate an object without moving all layers? The deformation tool is the answer to all your problems. To use it, select the object you want to resize (in other words the object on its own layer). Click the deformation tool (keyboard shortcut "d"). Your object will take on drag handles at 8 points around the object and a centre rotate handle too. If you click and drag a handle you can deform the object. Click and drag a corner and the height/width ratio is preserved. Now, here are some extra options with the same tool: Shift-click and drag a corner will "shear" the object, turning a rectangle into a parallelogram. Control-click and drag is a perspective deform. The opposite corner moves equally with the corner you move Shift-Control-click and drag a corner lets that corner move independently of the others. The line in the centre of the object is the rotate control. Click and drag the end of the line to rotate the object. Shift-Click and drag to rotate in 15 degree steps (useful for those 45 or 90 degree rotates). The deform tool is a much better way of resizing and rotating objects than using the popup dialog boxes for the same because you can see exactly how the object fits your larger image as you work on it. One final tip. You can click on the Accept box on the tool pallete if it is visible, otherwise just double click in the centre of the deform outline on the picture to accept or cancel the deform. For many more Digital Imaging Tips please go to http://www.JustKiss.com/psp
Two quick ways of adjusting font sizes in MS-Word from the keyboard.
Control-Shift-> increases size in steps (10,12,14 etc) Control-Shift-] increases size by 1 pointAnd of course Control-Shift-< decreases size in steps (12,10,9 etc) Control-Shift-[ decreases size by 1 point For a single page print of all the MS-Word shortcuts: http://www.c2000.com/mswindow/wordcut1.htm
While we all know Bill Gates is the richest man in the world. Did you know that the third richest man was an Indian software tycoon? Azim Premji is the MD of outsourcing company Wipro, based in Bangalore, southern India and is reported as worth 32.25 billion pounds.
And just talking about untold wealth, if Bill wanted to spend all his money ($300 billion) in the next 30 years, at what rate would he have to spend? Answer:
Which means it really isn't worth his while bending down to pick up a $100 dollar bill!
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Centreline 2000 - Uniplex, Unix, Windows and Internet Arle Court, Hatherley Lane, Cheltenham, GL51 6PN Tel: (UK) 01242 255 000 |
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URL: www.c2000.com/papers/nw_000331.htm © 1995-2001 Centreline 2000 Last Updated: 31st March 2000 |
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