Removing already generated keys

[thecoolone]

Here is the scenario. I have 2 servers serv1 and serv2. Previously i
had a crontab in serv4 that backed data from serv1 with login as
"thecoolone" on both servers. And this crontab was functioning properly
before.
Now i tried to make a new crontab in serv4 under a new login "user1"
and the same login "thecoolone" on serv1. After i made this crontab and
tried to execute both the old one and the one i just created, neither
of them work. And so i want to remove the entry (i.e public key copy
and authorized_keys entry) that i made on serv1 under "thecoolone"
login so that atleast the crontab that was working before starts
working again.

Anyone know how to do that?

Any help is always appreciated.

[anomie]

Appending a new entry to ~/.ssh/authorized_keys does not break any entries that were already there!

Is it possible you accidentally overwrote what was there? If so, easy fix: Just append the public key contents to ~/.ssh/authorized_keys again.

Make sense?