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Directory surveillance or synchronization

Hello,
I have this situation I'd like help on : during a project development we are granting someone FTP access to a subdirectory on our Linux server. However for several reasons we'd like to be aware of all activity in that workspace and also have a backup solution, so that for example if a file is uploaded and then removed we'd still be aware of that and have a copy of the file. I had in mind to use rsync and/or a tool detecting changes inside that dir, but I'm not sure how that would translate ?
Making a copy of the dir to another directory with a timestamp every minute would not be too rational even though disk space is not an issue...Could that idea be combined with a "change detection" tool (tripwire ?) triggering the backup/copy only when changes occur ?
Regards,

xscousr

pure-ftpd allows you to run a script after each file is uploaded. With this feature you could write a script which backed up or copied the files as they came up.

http://www.pureftpd.org/index.shtml

run pure-ftpd as your ftp server and the second daemon pure-uploadscript and use something like

#!/bin/bash
#
# copy uploaded file and email a notification
#
DATESTAMP=`date +%Y%m%d`
TIMESTAMP=`date +%Y%m%d_%H%M_%S`
notifymail="/tmp/notifymail"
archive="/var/archive"
log="/var/log/upload-${TIMESTAMP}.log"
upload="$1"
fname="$1"
if [ $var1 = usertowatch ]; then
chmod g+rwx $upload
cp $upload $archive
echo "File Uploaded at $TIMESTAMP" >$notifymail"
echo " ">>$notifymail
echo "Name Size" >>$notifymail"
echo " " >>$notifymail
ls -lh $upload | awk ' { print $9 " " $5 }' >>$notifymail
mail -s "New File uploaded to FTP" alert@domain.com <$notifymail
rm $notifymail

fi

Denisvt

ASKER

Right now the server we use runs ProFTPD, would you solution require that we install that other FTP server and/or replace our current one ?
I guess our contact has to use that server so that the script can be triggered ?

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xscousr

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Denisvt

ASKER

Thanks.