Tagged: Networking

Gentoo FTW!


These past few weeks, there have been some pretty disturbing disruptions for Linux users on rolling release distros.The biggest upset in recent times I’ll describe as “The udev-200 issue”, where the symptoms of an unsupervised update/reboot cycle will present you with a) a system that won’t boot, b) a system without network or c) both.

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Firewall Traversal


In the world of video conferencing, one of the most annoying aspects of networks are firewalls. When setting up calls, a lot of ports are needed. RTP requires a port for media in each direction, plus their RTCP port (usually RTP port + 1). Double that number again for the audio channels and just for luck, add an extra port for BFCP/H.239 content.

For a company that relies on video conferencing, multiplying this many ports by the number of external calls they expect to have concurrently, and this poses a problem.
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