Monthly Archives: March 2012

Wimax is Here — Philippines

When I first read the specs on wimax, I thought it would revolutionize internet connectivity in the developing world.  It should do the same in the US but the current cell phone companies have a vested interest in slow evolution. … Continue reading

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Rethinking Batteries and Power

Two weeks ago, I was promoting the use of deep cycle batteries, so that School Servers could run 24 hours a day.  As I’ve thought more about living with rolling load shedding, and expensive power, I realized that I needed … Continue reading

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Registration problem corrected but not “solved”

Today was really fun. Ferdie, the local technical lead, had observed that registration of XO’s succeeded at two schools and failed at two other schools. He also observed that “idmgr list-registration” displayed the serial numbers of XO’s that had never … Continue reading

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Ejabberd runninng but not working

The diagnostic suggestions for troubleshooting ejabberd have been exhausted, but still no joy.  The symptom is that running olpc-netstatus shows that the XO is doing presence via salut.  The strange thing is that ejabberd appears to have seen users, that … Continue reading

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Current issues and research

tick list the laptop at LIS should have a new battery, or run without an internal battery because after a certain degree of degradation it becomes a load on the power supply and prevents proper function. Teachers need a gui … Continue reading

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Researching the Registration process

There is a lot of information about the Registration process online.  First I’ll try to generate a annotated bibliography. Olpc wiki description of the identity manager. There is a description of how to run the idmgr interactively on the server … Continue reading

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School Server vs Cloud Server

There is a trend towards letting professional system administrators do their work on large server farms, and letting mere mortals benefit from their work by connecting to these “Cloud servers” via our high bandwith connections. Given the difficulty of setting … Continue reading

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