Monthly Archive: September 2011

Sep 16 2011

How to install the BIND DNS Server using Webmin, so Asterisk extensions (hopefully) will work even when your Internet connection fails

If you run Asterisk you may have encountered this issue: Your Internet connection goes down, and so does your ability to call from extension to extension, even between extensions on your local network. This is a long-standing bug in Asterisk (exactly the sort of bug that drives people to try alternatives such as FreeSWITCH) but …

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Sep 10 2011

A real help for Linux users with bad memories: Aliaser — take control of your aliases on Linux

Here’s a program that may be useful for those of you who, like me, sometimes find ourselves at a Linux command prompt trying to recall the syntax of a command we use frequently (because, you know, it would never have occurred to the designers of Linux to actually implement commands with names that have a …

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Sep 02 2011

How to give a particular extension or group of extensions access to a specific trunk or group of trunks for outgoing calls in FreePBX

I’m going to lift a bit of preliminary text from a page on the FreePBX site entitled “How to give a particular extension different or restricted trunk access for outgoing calls“: IMPORTANT: When implementing any sort of restrictions on extensions, using the method described here or any other method, please be absolutely certain that you …

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Sep 01 2011

The Linux equivalent of Little Snitch, ZoneAlarm, and similar per-application firewalls?

If you are a Mac user, you’ve probably heard of Little Snitch.  It’s a commercial (as in, not free) program that lets you allow or deny connections to the Internet from individual applications.  One reason for using such a program is to detect software that should have no reason to connect to the Internet nevertheless …

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