Tag Archives: network security

What is MANO

The winds of change are blowing through the Internet in response to the introduction of SDN and NFV. Software Defined Networking (SDN) promises to upgrade the core with an order of magnitude change in throughput and programmability. Network Function Virtualization … Continue reading

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Network Function Virtualization (NFV)

The networking industry is about to be introduced to two new networking technologies. The promoters of these new technologies are claiming that they are complementary but they do seem to be at odds. These technologies are NFV and SDN. I … Continue reading

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The Internet – A big change is in the works!!!

For the first time since perhaps the late 80’s, there is a big change in the works for the core¬†of the Internet. Software Defined Networks will greatly effect the way packets flow from sources to destinations. There is at least … Continue reading

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A new printer…

I just replaced our aging printer with a new HP6600 all-in-one. The printer itself promises more pages per ink cartridge, faster printing, faster scanning, air-print for wireless devices and there is only a power cable because it connects to the … Continue reading

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A Simple, Powerful and Portable network test tool…

I have already blogged about the Raspberry Pi (the $35 single board computer that runs XBMC or Linux). For this project the Pi would run Raspian which is a custom version of Debian. Raspbian uses the standard apt-get repos to … Continue reading

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Revisiting firewalls – iptables

“iptables” is the default firewall that ships with all Linux operating systems. The original version was called ipchains which refers to the structure of the software which resembles a chain. The most secure firewall is one that lets nothing in. … Continue reading

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Network topologies and Security

In the Internet age security is always in the news. We hire people and make their jobs dependent on our companies network security. We rely on devices like home routers to protect our personal PC’s from hackers and we give … Continue reading

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