All posts by Barry Mercer

Stuff

ERROR: 28035 when trying to sync from the Device SQLCE

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Getting an Error 28035 when using SQLCE through Forefront TMG / ISA server? Try disabling “Link Translation” under the properties of the rule. It worked for me! Has taken me about two days to find this out! I eventually got the bottom of it when I found this link http://www.biztalkgurus.com/biztalk_server/biztalk_blogs/b/biztalksyn/archive/2008/08/06/setting-up-sqlce-merge-replication-with-isa-server-in-the-middle.aspx

Stuff

NAT tables on mobile networks

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I’ve been trying to configure csipsimple and sipdroid to be as effient as possible when using my mobile phone. I want to be available on my VoIP network provided by www.pbxes.com but I don’t want to send unnecessary keep alives and registrations for example which would not be great for battery life.. I was curious to find out which was the best way. Obviously, the longer the timeout the better, but what’s the maximum? This will depend on which network you’re on, but I’m on GiffGaff (o2) in the UK and found that a 4 min keep-alive works well. I also have STUN enabled, and have also enabled “wake phone on keep alive” in csipsimple. Compared to the default of 90s, this should significantly reduce the power drain.

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Scheduling Tasks with Prime Numbers

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I was watching a documentary recently regarding the natural cycles that some animals have being based on prime numbers. Now, the reason this apparently evolved was to avoid conflict with other animals.The cicada was one example stated as such, having a cycle of 13 years. This means that they have very little chance of running into another cicada that has a different prime number life cycle.

So, I was thinking along those lines, and came to the conclusion that to avoid scheduled tasks in SCCM (the delta discoveries) hitting each other, I should schedule them for prime number cycles. Currently I have them set to 5, 7, 11 and 13 minutes. I’m not too bothered if it takes 13 minutes instead of 5 if it reduces the load on the system.

Just a theory.

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BLN Galaxy S2

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Finally someone overt at XDA has created a nice shiny kernel that has BNL support. You’ll need both a kernel that supports it AND a rom that does OR a hacked liblights that will allow it. I’m using stock rom, nimphetamine kernel, rooted, and with liblights. You’ll also need the app from the market. It works pretty well so far, however it does draw quite a bit of power. I think I measured a drain of about 150ma with the lights on. Less than the CPU uses but still significant. I’ve turned it off now as it draws too much power. Not much that can be done about that though I don’t think.

Hopefully the Galaxy S3 will have a notification LED. Samsung. Listen!