Post Tagged with: "iptables"

A Golden Newbie: Incredible PBX 13-13.10 for Ubuntu 18.04.2

A Golden Newbie: Incredible PBX 13-13.10 for Ubuntu 18.04.2

Monday, March 18, 2019

4 comments

If you’re as big a fan of Ubuntu as we are, then you’ll be pleased to know that the month-old update to Ubuntu 18.04 LTS is rock-solid. It takes a brave soul to name anything Bionic Beaver, but Ubuntu pulls it off and makes you want to meet one face-to-face, just not in a bar after midnight. Well, St. Paddy would be proud. Today’s new Incredible PBX® 13-13.10 release brings you everything you could want in a PBX, and the… Read More ›

Adding SIP URI Dialing to Asterisk for Free Worldwide Calling

Adding SIP URI Dialing to Asterisk for Free Worldwide Calling

Monday, February 11, 2019

3 comments

Since giving up on Google Voice, we’ve been extolling the virtues of SIP URI dialing which gives you unlimited free calls to anyone else in the world that happens to have their own SIP URI address. SIP URIs look very much like email addresses except they’re used to share phone conversations instead of email messages. And, as we’ve mentioned previously, if everyone in the world had their own SIP URI, paying for phone calls would become a thing of the… Read More ›

SIP Happens! Deploying a Publicly-Accessible Asterisk PBX

SIP Happens! Deploying a Publicly-Accessible Asterisk PBX

Monday, January 28, 2019

1 comment

We’ve previously documented the benefits of SIP URI calling. Because the calls are free from and to anywhere in the world, the use case is compelling. The drawbacks, particularly with Asterisk® servers, have primarily centered around the security implications of exposing SIP on a publicly-accessible server. Today we want to take a fresh look at a possible SIP implementation for Asterisk based upon the pioneering work of Dr. Lin Song back in the PBX in a Flash heyday. We’ve embellished… Read More ›

One Minute Wonder: Introducing VitalPBX for VirtualBox

One Minute Wonder: Introducing VitalPBX for VirtualBox

Monday, April 9, 2018

3 comments

Last week we took VitalPBX to the Cloud with our rock-solid firewall. And this week we’ll show you how to get VitalPBX up and running on any desktop computer in less than a minute using VirtualBox®. If you’ve followed Nerd Vittles over the years, you already know that VirtualBox from Oracle® is one of our favorite platforms. Almost any desktop computer can serve as a VirtualBox hosting platform. And once VirtualBox is installed, adding VitalPBX is a snap. Download the… Read More ›

VitalPBX in the Cloud: Providers, Backups, & Airtight Security

VitalPBX in the Cloud: Providers, Backups, & Airtight Security

Monday, April 2, 2018

6 comments

Last month we introduced VitalPBX, a terrific new (free) VoIP platform that’s about as intuitive as software can get. We followed up with a dozen Incredible PBX applications that really showed off the flexibility of this new Asterisk® platform. And today we’re pleased to introduce two new cloud solutions that offer our whitelist firewall design for security plus automatic backups. Both Digital Ocean and Vultr offer terrific performance coupled with a $5/month price point that is easy on your wallet.… Read More ›

RTPbleed Security Alert: Asterisk Calls Can Be Intercepted

RTPbleed Security Alert: Asterisk Calls Can Be Intercepted

Friday, September 8, 2017

5 comments

If you’ve installed Asterisk® during the past 4½ years, your server has a MAJOR security problem. If you didn’t already know, with Asterisk, your VoIP conversations actually are carried over a random UDP port using the Real Time Protocol (RTP), not the SIP port (UDP 5060) which handles the setup and teardown of your VoIP connections. It turns out that, since March 2013, all of that RTP traffic and thus your conversations could be intercepted and redirected by anyone on… Read More ›

Twofer Tuesday: 2 Cloud Servers for the Price of a RasPi

Twofer Tuesday: 2 Cloud Servers for the Price of a RasPi

Tuesday, February 28, 2017

1 comment

It’s been more than a year since we last chatted about Cloud At Cost. Because they’re in the midst of yet another 50% off Fire Sale and to close out February with a bang, it seemed like a good time to take a fresh look at a terrific way to get started with Linux. For today’s $35 cloud project, we’re going to build a free WordPress server and a free commercial PBX compliments of 3CX. For what it’s worth, we’ve… Read More ›

Raspberry Pi One-Minute Wonder: A Turnkey and Truly Incredible PBX for XiVO

Raspberry Pi One-Minute Wonder: A Turnkey and Truly Incredible PBX for XiVO

Monday, August 29, 2016

1 comment

Hard to believe it’s been 4½ years since the introduction of the original Raspberry Pi®. We love half-birthdays, and we’ve got a blockbuster gift for you today as we celebrate the fact that almost 10 million RasPi’s have been shipped. Yes, our love affair with the Raspberry Pi lives on. The sensational Raspberry Pi 3 sports a 1.2GHz 64-bit quad-core ARM Cortex-A53 CPU with ten times the performance of the original Raspberry Pi. Of particular interest to the VoIP community… Read More ›