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davetromp/UpOrDown.sh

Created November 28, 2012 22:29
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Revisions

  1. davetromp revised this gist Dec 2, 2012. 1 changed file with 5 additions and 1 deletion.
    6 changes: 5 additions & 1 deletion UpOrDown.sh
    View file
    Original file line number Diff line number Diff line change
    @@ -32,7 +32,11 @@ send(){ # subject message

    while :
    do
    ping -c 1 $url | grep "0%" > /dev/null
    wget --server-response --spider $url # checking the actual response is
    # better, because server me be running and returning pings while our
    # site could be down. This wget will only return exit 0 if response is
    # 200 ok
    #ping -c 1 $url | grep "0%" > /dev/null
    # if we get zero percent lost in the ping, all is well and we should get
    # exit status 0 on this last program run / exited
    if [ "$?" -eq 0 ] # so if we have exit status of zero then server is UP
  2. davetromp created this gist Nov 28, 2012.
    64 changes: 64 additions & 0 deletions UpOrDown.sh
    View file
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,64 @@
    #!/bin/bash

    ################################################################################

    # This script will check to see if a website is up/down by pinging the url
    # If there is no response an email wil be send via an external smtp mail server
    # If the site status is down an email will be send when the site is up again

    # set your check interval here :-) #############################################
    interval=3600 # hour

    # begin status ; DO NOT CHANGE #################################################
    stat=0 # this is the status UP; status 1 is DOWN

    # your url #####################################################################
    url="localhost"

    # email settings ###############################################################

    send(){ # subject message
    toemail="[email protected]"
    fromemail="[email protected]"
    smtpserver="smtp.gmail.com"
    port=587
    username="[email protected]"
    passw="YourVerySecretPassword"
    sendemail -f "$fromemail" -t "$toemail" -u "$1" -m "$2" -s \
    "$smtpserver:$port" -xu "$username" -xp "$passw" -o tls=yes -q
    }

    # check url ####################################################################

    while :
    do
    ping -c 1 $url | grep "0%" > /dev/null
    # if we get zero percent lost in the ping, all is well and we should get
    # exit status 0 on this last program run / exited
    if [ "$?" -eq 0 ] # so if we have exit status of zero then server is UP
    then
    # only if the current status is DOWN (1) then we want to notify
    # the new status up and change the stat variable accordingly
    if [ "$stat" -eq 1 ]
    then
    echo "UP | `date`" >> "$url-status.log"
    send "$url is UP" "UP | `date`"
    stat=0
    fi
    else
    # same as above but the other way around
    if [ "$stat" -eq 0 ]
    then
    echo "DOWN | `date`" >> `echo "$url-status.log"`
    send "$url is DOWN" "DOWN | `date`"
    stat=1
    fi
    fi

    sleep $interval

    done

    exit

    # Ciao #########################################################################