D/Line Radio Blog

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L3 MPLS VPN on Brocade Ironware

This might seem a bit of an odd post to be making. Not just because the MLXe router we’re using will probably be painted a very fetching shade of purple in future editions, but...

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Moving Zones Between Views in Infoblox

It turns out that moving zones between views in Infoblox is a surprisingly hard thing to do. The challenge ended up on my desk after we made the decision to operate a separate external...

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Modern Protocol Problems with an Old Firewall

Legacy systems are part of any mature technical environment. While I was a combination of both impressed and shocked when recently presented with a SunOS 5.7 box (OS dated 1998!) I had to assist...

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Reading Cart Chunk with PowerShell

Look at the audio files in any professional radio playout system. They’ll likely be linear WAVE files with the associated metadata stored in the cart chunk format. With this information it’s usually enough to...

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First Steps into OpenDaylight with Brocade

It’s not often that catch-up meetings with vendors lead to anything particularly exciting but a recent one I attended with Brocade was a little different. While Brocade have had Openflow support for a very...

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Logging Failure Reasons in FreeRADIUS

FreeRADIUS is an incredibly powerful RADIUS server and a tool I’m currently taking through a proof of concept as a possible replacement for Microsoft NPS. While the debug output of FreeRADIUS is fantastic in...

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Moving a Point-to-Point Microwave Link

At one station I volunteer for, we use a 1.5GHz microwave link to connect between the studio and the transmitter site on top of a hill nearby. Now I should stress that microwave link...

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Flipping Over to Your Competitor?!?

Weirdly, I had a problem I’ve not seen for years crop up recently. And it all started with complaints about car radios flipping between us and a competitor radio station. That’s not a good...