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The LangaList

2000-08-10
2000-Aug-10

A Free Email Newsletter from Fred Langa
That Helps You Get More From Your Hardware, 
Software, and Time Online

1) Free Firewall Software From The Makers of Sygate
2)
Plug A Security Hole In Excel
3)
Beware The Evil Ping Packet
4)
Windows 2000 Patch Finally Available
5)
Cautions Re: Win2K SP1
6)
Win $10,000! (Really!)
7)
Reader Sites Galore
8)
HotSpots Sizzling
9)
Just For Grins
More!

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1) Free Firewall Software From The Makers of Sygate

Long-time readers know I'm a major fan of Sygate ( http://www.sygate.com  ), Sybergen's  inexpensive and ultra-simple Internet access-sharing software. I think Sygate is better and easier to set up and use than Win98's "ICS" (although the latter is free). In Sygate's "Enhanced Security" mode, your PC sits like a black hole on the net: It's there, but very hard for hackers to find. I've written about Sygate many times before: see http://search.atomz.com/search/?sp-q=sygate&sp-a=0008002a-sp00000000

After Sygate originally became established, Sybergen went on to develop more configurable and powerful sharing solutions with a variety of features--- and on the security side, they produced a personal firewall product, too. All were commercial, for-a-price products.

Then, ZoneLabs' free (and excellent) ZoneAlarm personal firewall changed the pricing equation ( http://www.zonelabs.com/download_ZA.htm ) . Since the advent of ZoneAlarm, individual users haven't had to pay to add decent security to their PCs. (See http://search.atomz.com/search/?sp-q=zonealarm&sp-a=0008002a-sp00000000 )

Sybergen finally has responded by making *their* personal firewall free to consumers. In an announcement last week, Sybergen said:

Sybergen Networks... announced today that it is offering its Sybergen Secure Desktop software free for personal use. Sybergen Secure Desktop 2.1 is a personal firewall software that protects a single computer from hackers, Trojan Horse applications, and other malicious intrusion attempts. Consumers can download the product and obtain a free registration code at www.sybergen.com .

About Secure Desktop 2.1

Secure Desktop 2.1 offers several security features...

--Three customizable security levels designed to let you use the Internet while making your PC virtually invisible to hackers.

--Monitoring applications that access the Internet from your PC in order to protect from Trojan Horse applications.

--Security scheduling features that allow you to block all Internet communications when the PC is not in use.

--Vulnerability assessment capability through an online service offered by Sybergen Networks.

Sybergen Secure Desktop is also available for enterprise use. Features of this business-oriented version include customized security activity reports, central policy administration and central monitoring. For more information, please visit www.sybergen.com .

Choice is good, and more choice is better: I'll be checking out the Sybergen firewall and comparing it to my current favorite, Zonealarm. Because it's free, why not check it out for yourself, too?

[Note: A reasonably secure proxy or address-translator (like Sygate, ICS, or WinProxy) coupled with a good personal firewall (like ZoneAlarm or Sybergen Secure Desktop) will go a long way to making  your PC nearly hacker-proof. See the series of articles at http://content.techweb.com/winmag//columns/explorer/2000/07.htm for a ton of detail on making your PC secure online.]

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2) Plug A Security Hole In Excel 97 & 2000

Microsoft says, "The Microsoft Excel REGISTER.ID Security Update eliminates the vulnerability that could be exploited using the worksheet tools of Excel 97 to do malicious acts, such as deleting and overwriting files without the user's input or verification. This update protects against harmful code that could be executed from a worksheet by disabling the REGISTER.ID function."

If you never, ever share spreadsheets with others, this probably  isn't a issue for you: someone would have to give you an infected spreadsheet in order for this to cause you harm. But if you ever do (or will) share spreadsheets, then it's worth grabbing the patch:

Get the Excel 97 patch at:
http://officeupdate.microsoft.com/downloadDetails/xl8p10pkg.htm

Get the Excel 2000 patch at:
http://officeupdate.microsoft.com/2000/downloadDetails/xl9p3pkg.htm

(Note: But the Excel 2000 update requires that you've already installed Office 2000 Service Release SR-1 or SR-1a.)

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3) Beware The Evil Ping Packet

Here's another low-probability security problem that just came to light for Windows 95 and 98 (including Win98SE):

"The Microsoft IPX/SPX protocol implementation (NWLink) supports the IPX Ping command via the diagnostic port 0x456. Because of a flaw in the implementation of the protocol in Windows 95, Windows 98 and Windows 98 Second Edition, NWLink in these systems will respond to an IPX ping packet even when the source network address has been purposely modified to a broadcast address. This would give a malicious user an opportunity to launch an attack by broadcasting a single ping request - each affected machine that received the ping would respond to it, potentially resulting in a broadcast storm. In a large network, this could temporarily swamp the network's bandwidth. In addition, upon seeing its own response, each affected machine would attempt to process it, triggering a scenario that would culminate in the machine's failure. A machine that failed due to this vulnerability could be put back into service by rebooting."

Normally, IPX is only used locally; say, on a LAN or intranet, so this is mostly a vulnerability that could be exploited by, say, a disgruntled worker who wanted to crash the company's network.

A properly-configured PC won't send (or receive) IPX packets over its Internet connection (which is supposed to use only TCP/IP). However, an *IM*properly configured system might have IPX enabled (or, more precisely, the IPX protocol bound to the adapter in use for communicating on the Internet). In this case, then a vulnerability would exist in certain cases--- such as the neighborhood loop of a cable modem setup: a hacker on the local loop could exploit this vulnerability in other systems on the local loop.

This isn't exactly the sort of vulnerability you need to lie away worrying about, but it's worth grabbing the patch just to be safe:

Patch for Win95:
http://download.microsoft.com/download/win95/Update/8982/W95/EN-US/265334US5.EXE

Patch for Win98 and 98SE:
http://download.microsoft.com/download/win98/Update/8982/W98/EN-US/265334USA8.EXE

More Info/FAQ:
http://www.microsoft.com/technet/security/bulletin/fq00-054.asp

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4) Windows 2000 Patch Finally Available

I mentioned "Service Pack 1 for Windows 2000" a few issues ago, but apparently it was posted only briefly on the Microsoft site before it was pulled. Now it's back at http://www.microsoft.com/windows2000/downloads/recommended/SP1/ . It's also available on CD; you can get info at the link above.

It includes a pile of upgrades, patches, and bug fixes--- far too many to list here. If you're using Win2K (any version), use the link above to see what's involved.

And... see the next item (below) before running the patch!

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5) Cautions Re: Win2K SP1

Reader Bob Fields has a caution about Service Pack 1 for Win2K:

Hi Fred You might want to warn your readers to be cautious about installing this sp1 service pack. After installing I could not open my browser (either netscape 6.0 nor IE 5.01) Apparently sp1 changed some system settings and had to uninstall it to get back to normal .Microsoft is aware of the problems and I'm told will have a fix eventually.

But reader Roger M Shady may already have found at least part of the answer:

Fred, I thought that I would pass this along. Windows 2000 Service Pack-1 that was just released does not like firewalls including ZoneAlarm. When I installed Sp1, I could not connect to my ISP via my cable modem. I uninstalled SP1 and things came back to normalcy.

Attached is the reply that I received for Microsoft Support.

Thanks for the knowledgeable advice and I always look forward to your newsletter..........Roger

******* The following is an email for an incident from Microsoft Corp., CASE_ID_NUM SRZ000730000XXX

Hi Roger,

The only problems we are encountering on the SP1 for W2K is when someone has a third-party pseudo-firewall installed such as Black Ice, Zone, etc. Remove these pseudo-firewalls, install SP1, reattempt your Internet connection, and you should be reconnected. At this point, it is up to you if you want to reinstall the suspect pseudo-firewall.

Thanks Bob and Roger!

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6) Win $10,000! (Really!)

The Recommend-it site used to give away Palm III organizers as an incentive to use their service; but then they upped the ante--- way, way up!

If you think the LangaList is a worthwhile read, just use the following link to recommend the LangaList to a friend. Your friend just may find a new source of useful information; I just may gain a new subscriber; and you just may win $10,000 or other prizes from the folks at "Recommend-It." (Full details are available via this link):

http://www.langa.com/recommend.htm#1

Or, win a copy of "Poor Richard's E-Mail Publishing: Creating Newsletters, Bulletins, Discussion Groups and Other Powerful Communications Tools." This book has been described as "An excellent, straightforward manual on email publishing, banner ads, driving traffic and especially ethics." (Full details also available via this link):

http://www.langa.com/recommend.htm#2 

Either way, thank you, and good luck!

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7) Reader Sites Galore

Do you have a home page or website? (It doesn't matter what size.) Please click over to http://www.langa.com/code.htm, and maybe you can join the hundreds and hundreds of LangaList readers who have "Loaded the Code!" (If you've already "Loaded The Code" and are wondering if your site will appear here or on the Langa.Com web site, please see http://www.langa.com/link.txt )

Speaking of which: Here's another eclectic sample of reader sites--- some professional, some very personal:

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8) HotSpots Sizzling

This newsletter is twice-weekly, but my "Web HotSpots" page is updated fully 365 times a year---a new site very day, without fail. As such, it's a great mechanism to bring you brand-new, just-available sites. Often, great new sites will show up in HotSpots before I can mention them here in the newsletter.

Other times, the HotSpots site proceeds normally in its mission to bring you "Every Day, The Best, Most Interesting, Most Useful, and Strangest  Sites the Web Has To Offer!"

For example, during the last week, the Hotspots page has offered these links:

If you're not a regular Hotspots visitor, you're missing a lot. Check it out (every day!) at http://www.browsertune.com/flanga/hotspots.htm, and check out past HotSpots in the HotSpots Hall Of Fame at http://www.browsertune.com/flanga/hof.htm

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9) Just For Grins

Continuing in the summer spirit (at least here on the top half of the planet), here are more "Nerd T-Shirt Slogans" sent in by reader Micky Plant. (#1-25 appeared in the previous issue):

...
26. Disinformation is not as good as datinformation.
27. Windows: Just another pane in the glass.
28. SENILE.COM found . . . Out Of Memory . ..
29. Who's General Failure & why is he reading my disk?
30. RAM disk is not an installation procedure.
31.. Shell to DOS...Come in DOS, do you copy? Shell to DOS...
32. All computers wait at the same speed.
33. DEFINITION: Computer - A device designed to speed and automate errors.
34. Go ahead, make my data!
35. Smash forehead on keyboard to continue.....
36. Enter any 11-digit prime number to continue...
37. ASCII stupid question, get a stupid ANSI!
38. E-mail returned to sender-insufficient voltage.
39. All wiyht. Rho sritched mg kegtops awound?
40. Error Keyboard not attached. Press F1 to continue.
41. "640K ought to be enough for anybody." - Bill Gates, 1981
43. Hidden DOS secret: add BUGS=OFF to your CONFIG.SYS
44. Press any key to continue or any other key to quit...
45. Press any key...... no, No, NO!! Not THAT one!

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See you next issue!

 

Best,

Fred

(fred@langa.com)

Please recommend the LangaList to a friend! (And maybe win $10,000!I)

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About the advertisers:  Langa Consulting LLC will never knowingly accept advertising for a fraudulent product, company or service. However, Langa Consulting LLC makes no implied or explicit warranty, recommendation or endorsement of or for the products, companies or services mentioned in the ads.

Disclaimer: (Please see full disclaimer here: http://www.langa.com/legal.htm.) Abbreviated version: The tips and other information given in the newsletter are researched and are believed to be accurate, but we cannot and do not guarantee that all the information here will work on all systems, for all users, all the time. All information herein is offered as-is and without warranty of any kind. Neither Langa Consulting LLC, nor its employees nor contributors are responsible for any loss, injury, or damage, direct or consequential, resulting from application of any information presented here.

This newsletter is a free service of Langa Consulting LLC and is Copyright © 2000 Langa Consulting LLC. All rights reserved.

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