Safe Computing
Following are a few tips on keeping your work safe from viruses and other malicious software, not to mention hardware failures and "ID 10T" errors (user has performed an illegal operation and will be shut down).
1. Assume the worst. Assume every file you receive is infected
and enery disk is about to fail. Assume the power is about to go
out. Assume your OS is as secure as a cardboard jail. (It probably
is.)
2. Save regularly. This seems obvious, but it's amazing how many people forget to hit the "save" key. Computers are not 100% reliable. Even a machine that never crashes can be hit hy a power outage. Buy a UPS (uninterruptible power supply)
3. Keep an archive trail. There isn't a specific archiving
feature in PageMaker, but there are utilities you can use to overcome
this shortcoming. On the Mac I use a little gem called "SuperSave"
which not only sends the frontmost application a Command-S at user
specified intervals, but can capture your keystrokes as you type
in case a power failure strikes before you can save. You could make
a backup automatically with Connectix CopyAgent, which has a nice
"Smart Replace" feature that can be automated and made
to back up any folder to any mounted volume at any time you specify.
It can even mount file servers by itself. With scripting (in Windows
or Mac OS X, or with a Mac add-on like OneClick or QuicKeys) you
could probably automate the serialized version number technique
others have mentioned to have file.001.p65, file.002.p65, etc.
4. Keep up to date. Check your favorite
anti-virus news site regularly and keep your antivirus software
up to date. Dozens of new viruses are created every day. Don't fall
victim to the latest and greatest just because your software is
a month out of date.
5. Don't update software just to keep up. If it ain't broke,
don't "fix" it. Let other people do your software testing
for you. Update when you know it's been thoroughly tested or when
the update adds a feature you can't do without or fixes a major
problem in your work.
6. Keep a quarrantine machine. Use an older machine that isn't being used for something else to test new software, download files, and scan floppy disks. Added bonus tip: if you're a Windows shop, a Mac makes a great quarrantine station, since there are fewer viruses for Macs than PCs. You can also put an infected PC disk into a Mac and safely copy the files off it. I've safely rescued PC disks that a PC refused to erase by copying the files onto a Mac, reformatting the disk as a Mac disk, then again as a PC disk, and then copying the files back onto it.
7. Don't double-click attachments. Treat all e-mail attachments as potential virus threats. Never open an attachment by double clicking it. Always save it to your hard drive and open it from within the corresponding application, such as Microsoft Word for ".doc" files. This is because attachments can disguise themselves as, say, a graphic when they are really something else (e.g. programs or .exe files). If you're not expecting an attachment, call or reply to the sender before opening it to make sure they intended to send it to you and know what it is. Delete any attachment you cannot verify with the sender. Newer viruses can mail themselves to you using the infected computer's e-mail address book. If you have any doubts at all, delete the mail message and ask the sender to give you the attachment on disk or via the web.
8. Avoid crash buildup. Each time your computer crashes, disk corruption can result. Always run Disk First Aid (Mac) or ScanDisk (Windows) if your machine crashes. More recent versions of each OS will even do this for you automatically. Do not turn thisfeature off or cancel it to save a few seconds. If your computer crashes regularly, find out why and correct the problem.
Even the rules above cannot keep you completely safe. When a new virus appears it can take a day or more for antivirus manufacturers to respond to the threat and make a fix available. So........
9. Back up regularly! This is probably the most important thing you can do. Even if your machine is stable and reliable, it can be stolen, or destroyed in a fire! For added safety, keep a good set of backups at two different locations.
If you have questions, comments, or have an additional safe computing tip you would like to share, contact Peter C.S. Adams.
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Related Links
Ergonomics
Computers are great for many things, but they can be harmful to
you. Among the dangers are stiff backs, dry eyes, headaches caused
by improper lighting, and repetitive stress injuries. Apple
Computer has published a report on the possible dangers and
ways you canprevent or minimize these dangers.
TidBITS published a useful
and attractive chart covering these issues, as well, and kindly
gave us permission to convert it to a PDF and post it. (176 KB Adobe
Acrobat file)
Viruses
Our virus
page has virus news, a free online virus scanner, and links
to virus encyclopedias and anti-virus software vendors.
Internet Tourbus has published
Virus Protection 101 & 102. They have a nice analysis and several
good practices for people to follow.
Backups
Retrospect is a high end cross-platform
backup program.
Carbon Copy
Cloner is a fast, free way to backup your Mac OS X hard disk
to a second hard disk.
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