Node Time Out

Albert Febraro <w6aax@...>

Can I get an explanation on how to disable the node time out timer in the software?  My node disconnects from other nodes and reflectors after approximately  thirty minutes of being idle.  I understand that the environment file has to updated. How can I get to that directory and file after log in from Putty. And then what value needs to be changed?  
Thank you and 73,

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