10.253.1.13: pre/pre

2014-05-15T18:38:06Z

pre/pre

← Nächstältere Version		Version vom 15. Mai 2014, 18:38 Uhr
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	What do you think of this script? (A thousand apologies, not a German-speaker.)		What do you think of this script? (A thousand apologies, not a German-speaker.)

			<pre>
	#!/bin/sh		#!/bin/sh

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	echo '/*/'		echo '/*/'
			</pre>

10.253.1.13: Simple knock.

2014-05-13T17:25:40Z

Simple knock.

Neue Seite

What do you think of this script? (A thousand apologies, not a German-speaker.)

#!/bin/sh

dir=/var/knockdata

num=${0##*[.]}

function badknock { echo b > "$dir/$1"; } # hosts banned until lockfile removed

function ifnoknock { if [[ ! -f "$dir/$1" ]]; then badknock $REMOTE_HOST; fi }

case "$num" in
1) if [[ -f "$dir/$REMOTE_HOST" ]] #reknock?
then if [[ "$(<$dir/$REMOTE_HOST)" = 'g' ]]
then echo 1 > "$dir/$REMOTE_HOST" #reknock!
else badknock "$REMOTE_HOST"
fi
else echo 1 > "$dir/$REMOTE_HOST"
fi ;;

2) ifnoknock "$REMOTE_HOST"

if [[ "$(<$dir/$REMOTE_HOST)" = '1' ]]
then echo 2 > "$dir/$REMOTE_HOST"
else badknock "$REMOTE_HOST"
fi ;;

3) ifnoknock "$REMOTE_HOST"

if [[ "$(<$dir/$REMOTE_HOST)" = '2' ]]
then echo g > "$dir/$REMOTE_HOST"
else badknock "$REMOTE_HOST"
fi ;;

t) ifnoknock "$REMOTE_HOST"

if [[ "$(<$dir/$REMOTE_HOST)" = 'g' ]]
then exec /usr/sbin/sshd -i # (https://wiki.uugrn.org/Ssh_knock)
fi ;;
esac

echo '/*/'

Diskussion:Ssh knock - Versionsgeschichte

10.253.1.13: pre/pre

10.253.1.13: Simple knock.