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Mac OS X Zip Expanding Utility

Firefox (and possibly other applications) may ask you what you want to do with .zip archives that you download from the Internet. If you want to expand them with Mac OS X (rather than StuffIt Expander), you may be unsure of which application actually does the job. You're looking for Archive Utility (in Leopard and later) or BOMArchiveHelper (in Tiger). In either case, the application is stored in Hard Drive/System/Library/Core Services/. Don't move it from there, though, or you'll confuse matters.

 

 

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Simon 3.0 Monitors Servers More Closely

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If you need to monitor any sort of Internet service, or if you want a tool that will watch Web pages for changes, the main game in town for the Mac is Dejal Systems’ Simon, now updated to version 3.0. In active development since 2003 and with its first major upgrade in five years, Simon 3.0 refines its user interface and extends its capabilities with the concept of filters that enable you to analyze and act on the results of a test in a wide variety of ways. I’ve used Simon for a very long time now to monitor our servers, and frankly, I wouldn’t be without it, since I far prefer learning about server problems from Simon than from someone who happens to notice at some random point in time.

On the interface side, Simon now includes an Activity log in the Monitor window, replacing the old Notifications Log. It still includes the notifications that a particular test has triggered, but also tracks user-initiated actions like edits, pauses, and so on. Also, the editor windows (where you specify tests, services, notifications, and the like) have traded disclosure triangles for tab buttons; a Summary tab summarizes the settings in all the rest of the tabs.


But the most interesting change in Simon 3.0 is the addition of filters. Previously, Simon could determine whether only a particular portion of a Web page had changed, enabling a test to ignore dynamic or uninteresting aspects of the page (ads, the date and time, etc.). Filters abstract that concept, enabling you to look at multiple portions of a page, search for text using simple text matching or grep, analyze found numbers, and more. Filters can even be combined for additional processing power. And if that’s not enough, a Script filter lets you send the results of a test to an AppleScript, shell, perl, or Python script for further manipulation. Much as I wouldn’t really recommend this, you could configure Simon 3.0 to watch a Web page containing Apple’s stock price, and if it drops below a specified level, send a Twitter direct message to your broker to buy 100 shares.


Among the many other improvements listed in Simon 3.0’s release notes are improved handling of cookies, the capability to pause until you’ve logged into a hotspot portal page, support for current Twitter authentication approaches, and the capability to save logs. New services enable you to test to see if a FileMaker Server is running, and to check which applications on your Mac are using the Internet.

Despite all this power, Dejal Systems has a flexible licensing approach that keeps Simon affordable for those who need only a few tests (and note that anyone who purchased since 1 September 2010 is eligible for a free upgrade). The Bronze level offers 15 tests and costs $49 new, or $19 as an upgrade. The Silver level jumps to 40 tests, $99 new, and $39 upgrade. Gold level provides 100 tests for $199 new or $69 upgrade. And the Platinum level allows unlimited tests for $499 new, or $99 upgrade. Simon 3.0 requires Mac OS X 10.5 Leopard or later and is a 15.6 MB download; a trial version is available.

 

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Comments about Simon 3.0 Monitors Servers More Closely
(Comments are closed.)

Steve-O  2010-11-08 21:24
Lest we forget, Dartware offers a long-standing monitoring tool, "Intermapper," first developed solely for Macs during the 90s at Dartmouth. Way many probes, it has, and now netflow collectors and of course the ever-popular "Five for Free" license for home/small networks.
Disclaimer: I'm a customer, but have no other relationship with Dartware.
Adam Engst  An apple icon for a TidBITS Staffer 2010-11-09 07:21
InterMapper is indeed a powerful and venerable tool, but it's really at a different level than Simon. InterMapper is for full network monitoring and traffic analysis, whereas Simon is for server monitoring and Web page watching.