local_user="$1"; shift
if [ -z "$server" -o -z "$remote_user" -o -z "$local_user" ]; then
- echo "This script will write a record of the IP address for the host where it is"
- echo "run into a file in a remote computer. To do this feat, it needs the"
- echo "following parameters:"
+ echo "This script will record the IP address for 'this' host into a file on a"
+ echo "remote computer (that is running ssh server). To perform this feat, the"
+ echo "following parameters are required:"
echo " $(basename $0) {server} {remote-user} {local-user}"
echo "Note that this script must be run as root, but it uses the local user's"
echo "capability to connect to the remote system without a password (given the"
echo "user's possession of an ssh certificate on the remote host). The remote"
echo "user, in other words, must have an entry in the ssh authorized_keys that"
echo "allows the local user to connect."
+ exit 1
fi
ip_file="$(hostname | sed -e "s/\..*$//")_ip_address.txt"
-echo ip file is $ip_file
# go over to the server and write a file recording our IP address.
# note that the local_user here is expected to have a certificate that