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How to setup crontab to login to other host automatically to fetch some details

Hello, I would like to know how to setup crontab to login to other hosts automatically to fetch some details. I understand that there is is auto ssh trust key setup. But is there any other way except ssh so that I can setup a framework for password less authentication? Thanks!
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parparov
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noci

You can try kerberos.
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can we do it using rlogin or rsh or something like that?
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shosts would provide you with required rsh functionality without need to send anything unencrypted.
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ArneLovius,

I understand the device connecting is just an appliance that may not be able to use rsync.
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Thank you!