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Occasional musings on new and unique methods of arranging 0's and 1's.

Blog2020-11-29T17:15:20-07:00

Asterisk FreePBX Call Forwarding via *72 / *73

This article describes how to use Asterisk, FreePBX, or AsteriskNOW to forward calls by using the your telephone company’s *72 / *73 feature via analog FXO (POTS) channels.

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Linux Cheat Sheet / Advanced Command Reference

Advanced command reference for Linux. We assume you already know basic commands such as ls, pwd, mkdir, gzip, etc. Here are some useful additions which you may not already know.

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Block Brute Force SSH Attempts

If you run a Unix server on the Internet, your server will, eventually, be hit by either a script kiddie or a botnet which will try to guess SSH passwords in order to gain access to your system. Here are a number of resources and methodologies to block frequent brute force SSH attempts on your server(s).

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Xylogics Terminal Servers – The Definitive Guide

The definitive guide to Xylogics Annex terminal servers. These asynchronous terminal servers are typically used to connect to console ports, modems, terminals, and printers.

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Installing Quickbooks Enterprise on a Linux Server

Intuit/Quickbooks does not provide telephone support for Linux servers, and we have found their online support documentation to be very lacking in some key details that must be properly configured in order to get Multi-User access working properly.

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