How to renew KES in Block Producer node

What are the steps to renew KES key on the BP node?
@Alexd1985 what do you advise?

Remeber me… are u using cntools?


how can i forget you :slight_smile: yes i am using cntools

Then the operation is simple… cntools - pool - rotate … and restart ur Producer

Now in glive u should see new expiration date



Cool, should i rotate it after the KES expired or i can do it few days before hand ?


You must rotate before expire (1-2 days before ).


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Hey @Alexd1985, I am also using cntools and when I rotate, it shows me this error below.
Command failed: node issue-op-cert Error: /opt/cardano/cnode/priv/pool/My_pool/cold.counter: /opt/cardano/cnode/priv/pool/My_pool/cold.counter: openBinaryFile: permission denied (Permission denied)

do you have any idea what permission require for the process? I gave full permission but still same atm.


I figured that all 3 cold.x files should have rw rights. after that all worked like a charm… and I removed those files from my Production node to a cold storage for precaution…

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