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the problem in a nutshell: running plink(with specific arguments) works from cmd, but not from asp.net

the command being executed: "C:\Program Files (x86)\PuTTY\plink.exe" -batch abc@xyz ./fake_email.sh

from cmd, the command executes correctly, with fake_email.sh returning "0". from asp.net i get the following error: The server's host key is not cached in the registry. You have no guarantee that the server is the computer you think it is. The server's rsa2 key fingerprint is: ssh-rsa 2048 sequence Connection abandoned.

i think it has something to do with the user(which .net uses to start a process) not being able to "see" the key which pageant is making available. i am running cmd as administrator.

i am happy to post more info.

can anyone point me in the right direction?

thanks for your help.

someguy
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1 Answers1

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solved it.

asp.net by default executes processes as "NetworkService" user. i was unable to cache the key for that user, so i decided to create a new user, which i assign as the identity of the application pool in IIS. because i created this user, i am able to cache the key in the registry (just using cmd).

someguy
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  • This doesn't work for me. I'm running IIS processes as my own user account, and I still get errors. – Triynko Jan 11 '19 at 03:38