Regenerate server SSH keys

gistfile1.sh

#!/bin/bash
set -e

if  [ "$(id -u)" != "0" ]; then
    echo "This script must be run with administrator privileges."
    exit 1
fi

if [ -z "$(which ssh-keygen)" ]; then
    echo "Required utility ssh-keygen does not appear to be installed."
    exit 2
fi

KEYGEN_CMD=`which ssh-keygen`

echo "Removing current server keys..."
rm -rfv /etc/ssh/*key*

echo "Creating RSA key..."
echo
$KEYGEN_CMD -q -t rsa -f /etc/ssh/ssh_host_rsa_key -N "" -C ""

echo "Creating DSA key..."
echo
$KEYGEN_CMD -q -t dsa -f /etc/ssh/ssh_host_dsa_key -N "" -C ""

exit 0