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Top Forums UNIX for Dummies Questions & Answers Resetting remote server SSH pswd? Post 302211510 by Smiling Dragon on Thursday 3rd of July 2008 04:00:57 PM
Old 07-03-2008
Log onto the remote server directly as root (you may need to do this via the console). From there you can reset the password without needing to know it first.
If you don't have root access to the remote server, contact the root admin and supply them your username and proof of who you are so they can reset it for you.

Unless you mean the ssh key and you've lost your private key. In that case, unless you can find it yourself, you'll have to generate a new one and update your public key on the remote server after logging in normally (username/password)
 

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NEWKEY(8)						    BSD System Manager's Manual 						 NEWKEY(8)

NAME
newkey -- create a new key in the publickey database SYNOPSIS
newkey -h hostname newkey -u username DESCRIPTION
The newkey utility is normally run by the network administrator on the Network Interface Service (NIS) master machine in order to establish public keys for users and super-users on the network. These keys are needed for using secure RPC or secure NFS . The newkey utility will prompt for the login password of the given username and then create a new public/secret key pair in /etc/publickey encrypted with the login password of the given user. Use of this program is not required: users may create their own keys using chkey(1). OPTIONS
-h hostname Create a new public key for the super-user at the given hostname. Prompts for the root password of the given hostname. -u username Create a new public key for the given username. Prompts for the NIS password of the given username. SEE ALSO
chkey(1), keylogin(1), publickey(5), keyserv(8) NOTES
The Network Information Service (NIS) was formerly known as Sun Yellow Pages (YP). The functionality of the two remains the same; only the name has changed. BSD
October 12, 1987 BSD
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