[Bobs-devel] Security Issues - Idea

[Jochen M. <j.m...@om...>]

Hi Rene, 
Hi Joe,
hi folks,

one of my clients has bobs server running, and as you know I like.
Today I have come across the problem of security, concerning, that
the system (bobs server) is still alive.

This is a great problem for me. Because as this company does not 
have an administration or something, I let the system run and do
not control it every day.

Know I figured out that backup system was dead for a long time.
As I - shame on me - figured out, it occured by a stresstest of
mine, producing new backups every 5 minutes.

So the system did not make backups for a couple of .... ( that is 
my secret ;o) ).

To solve this, I think it would be nice, to do some simple email 
reporting.

I hacked this on bobs 0.6.0 or 0.6.1 I suppose. I am not firm to
the new version, where check_loop runs as a service as I could see
in the lists.

So here are my changings I did on 0.6.x < 0.6.2

1. Hacked check_loop:

# new part, to be informed when system stucks !!
ADMIN_EMAIL=j.m...@om...
# seconds that are o.k. since last action in SECONDS
# we use 7 days here =
MAX_NO_ACTION=604800
# for testing
#MAX_NO_ACTION=4

# check if CMDLOOP_DIR"last_run"
if [ -f "$CMDLOOP_DIR""/last_run" ];
   then
      LASTRUN=$(cat $CMDLOOP_DIR"/last_run")

      # security option
      if [ "$LASTRUN" = "" ]; then
        LASTRUN=0;
      fi
      CURRENT_TIME=$(date +"%s")

      # calculate diff
      let DIFF_TIME=$CURRENT_TIME-$LASTRUN

      if [ $DIFF_TIME -gt $MAX_NO_ACTION ]; then

        echo "No action for too long" >> /var/log/bobs
        echo "ERRORREPORT" | mail -s "[BOBS] No action for too long"
$ADMIN_MAIL

      fi
   else
     echo "Sorry, does not exits yet";
fi

if [ "$CMDLOOP_PID" == "" ]
  then

2. Hacked cmdloop

 if [ -e $file ]
                                then
                                        echo "Starting $file"

                                        # write current time to last_run
                                        date +"%s" > $PWD"/last_run"

# ${file##*.} resolves to the extension of the file name
# File name 'cmd.1048828727.bash' resolves to just 'bash'
# See 'parameter expansion' in 'info bash'
                                        ${file##*.} $file
                                        $DELCMD $file
                                        echo "Finished $file"
                                else
                                        continue
                        fi
                        done



That is it...
The thing that can occur, that the system hangs in a cmd... - execution
- I believe.

So what do you think of it ?


Cheers Jochen 




Jochen Metzger
j.m...@om...
http://hosting.omatix.de