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When a body of independent auditors and experts recommended that the State of California consider open-source software and Voice over Internet Protocol telephony (VoIP) as two measures to cut costs in 2004, that was the signal that open source and VoIP should unite. After all, what’s better than free software? Open source is better, because you have access to the code. What’s better than open source? Open source that’s focused on VoIP. That’s what you get here — 74 open source apps tucked into categories that you can use “as is” or change to fit your specific VoIP needs.

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Posted in Voipnow.org

So you’ve seen the ads for VoIP. With the growing popularity of VoIP it’s hard to miss them and even harder to ignore the kind of savings they promise. But like any new technology, VoIP doesn’t come without a few kinks. This doesn’t mean that you shouldn’t switch to VoIP. But before you take the plunge you should make sure your experience will be a refreshing one. Here are a few tips and precautions to make sure your transition to VoIP doesn’t leave you wishing you hadn’t been so hasty to dump your traditional service.

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How to Encrypt Your VoIP?

Posted in Voipnow.org

As VoIP becomes ever more popular, the security of these systems becomes more of a concern. VoIP can be vulnerable to a number of attacks due to the nature of VoIP calls. In short, VoIP traffic flows across the Internet in unencrypted packets, which means anyone that has access to the network between sender and recipient can intercept these packets — essentially allowing them to create a recording of your conversation. How can you help secure yourself against these types of attacks?

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How To Be Your Own VoIP Provider?

Posted in Voipnow.org

Looking to compete with the likes of Skype or Vonage? Well, don’t start eyeing that new yacht just yet. While the VoIP industry is making some people very rich, you will have a tough time competing in this saturated market. However, adding VoIP to other Web services provided by your company is a good business move. Even if you can’t become the next VoIP giant, you can definitely profit from becoming a provider to your existing customers. If you offer ISP, email and/or hosting services, VoIP should be the next addition to your business’ roster of features. Don’t be intimidated by this new technology, either. You no longer need an IT degree or a small fortune to become a VoIP provider.

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Posted in Voipnow.org

Have you tried lately to figure out which Linux operating system you’d like to use? And, did you think about adding a VoIP (Voice over Internet Protocol) device to that Linux system? We can guess that you probably overwhelmed with the choices available to VoIP users today. In fact, to write a truly definitive guide to VoIP for Linux users, we would need to write a book.

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Server Security

When a system is used as a server on a public network, it becomes a target for attacks. For this reason, hardening the system and locking down services is of paramount importance for the system administrator.

Before delving into specific issues, review the following general tips for enhancing server security:

Keep all services current, to protect against the latest threats.
Use secure protocols whenever possible.
Serve only one type of network service per machine whenever possible.
Monitor all servers carefully for suspicious activity.

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Workstation Security

Securing a Linux environment begins with the workstation. Whether locking down a personal machine or securing an enterprise system, sound security policy begins with the individual computer. After all, a computer network is only as secure as its weakest node.

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Security Updates for Red Hat Linux

As security vulnerabilities are discovered, the affected software must be updated in order to limit any potential security risks. If the software is part of a package within an Red Hat Enterprise Linux distribution that is currently supported, Red Hat, Inc. is committed to releasing updated packages that fix the vulnerability as soon as possible. Often, announcements about a given security exploit are accompanied with a patch (or source code that fixes the problem). This patch is then applied to the Red Hat Enterprise Linux package, tested by the Red Hat quality assurance team, and released as an errata update. However, if an announcement does not include a patch, a Red Hat developer works with the maintainer of the software to fix the problem. Once the problem is fixed, the package is tested and released as an errata update.

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