How to fix "mountd: refused mount request: unmatched host"

Error: On Client ( # mount /mnt mount.nfs: access denied by server while mounting On NFS Server ( # tail -n 1 /var/log/messages Sep 13 00:00:32 cc01-nds-ins rpc.mountd[29613]: refused mount request from

How to fix "/usr/bin/ssh-copy-id: ERROR: No identities found"

Error: # ssh-copy-id root@ /usr/bin/ssh-copy-id: ERROR: No identities found Solution: You will have to manually define the path of the public key using -i switch as shown below # ssh-copy-id -i .ssh/ root@'s password: