Mitel Forums - The Unofficial Source
Mitel Forums => MiVoice Office 250/Mitel 5000 => Topic started by: Dogbreath on December 12, 2014, 06:32:58 AM
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What is a 'Code Change' system reset? Release is 5.1.0.46
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Dogbreath,
The system saw a change in how its OS is operating and did a reset to compensate for that. We had that problem when a system would get brown outs on its power supply. We have also seen that with corrupted or bad Compact Flash Cards as well as incomplete system upgrades.
Thanks,
TE
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Interesting. I saw this reason code on a system where the IT company had left SSH open to the world. The logs indicated ~22000 SSH login attempts per day and the users reported to us that the phones were performing sluggishly, before stopping working completely.
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Leaving ports open to all is a no no, this can causes all sorts of weird issues. We always get ports locked down to our source IP or look at a secure VPN connection.
Its just not worth the risk, also I have read other systems (not Mitel) having similar issues with ports open. I remember reading Avaya suggested turning off auto phone registration as I believe people were hacking system and auto registering new devices to make calls. What ends up being a really handy install tool for an engineer ends up being a great tool for hackers.