nagios notification sent as a .bin file

[abrist]

The character is an "SOH" (Start of heading). It is a transmission control character, and will cause sendmail to treat the body as an attachment. It is found right before the ip address in the email body. c You can see it for yourself by opening the file in notepad++ and going to view --> show symbol --> show all characters.

[tmcdonald]

The odd character is called a SOH (Start Of Header) and has the hex code 0x01 (see picture). From Wikipedia:

The start of heading (SOH) character was to mark a non-data section of a data stream—the part of a stream containing addresses and other housekeeping data.

Basically it's a control code that was used back in the days old dumb terminals. Another common one is BEL that would cause the terminal to beep when encountered.

Since it is not intended to be printed to a screen we call this a non-printable ASCII code. sendmail sees these as binary data so any text stream that includes one will be considered binary as well. Since binary data (like MP3s or GIFs) can't be readily printed as text they are attached to an email instead of being in the email body itself. Interestingly enough, the IP shows as "92.168.71.21" in your attachment which almost certainly should be "192.168.71.21". Since the hex code for SOH is 0x01, somehow we are getting hex instead of regular decimal. The problem now is to find out why your plugin is outputting this SOH character for one check only. Please run the following:

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./check_disk_smb -H stor2 -s nagios -u nagios -p smbMonit0r -w 80 -c 90 > output.txt

Then attach the output.txt file in a reply.

[drewbpearson]

First of all, thank you! I just realized that it went to page 2 so Im sorry for not getting back to your response earlier. I will look at this in depth and let you know if I get it fixed!! You guys are awesome and appreciated!
~dp

[abrist]

Great. Let us know!

[drewbpearson]

Here is the output!
WARNING: Only 244.37G (13%) free on \\stor2\nagios | 'nagios'=1697358597120B;1567800201216;1763775226368;0;1959750251520

[drewbpearson]

The following are my notification commands, not sure if they help....

# 'notify-host-by-email' command definition
define command{
command_name notify-host-by-email
command_line /usr/bin/printf "%b" "***** Nagios *****\n\nNotification Type: $NOTIFICATIONTYPE$\nHost: $HOSTNAME$\nState: $HOSTSTATE$\nAddress: $HOSTADDRESS$\nInfo: $HOSTOUTPUT$\n\nDate/Time: $LONGDATETIME$\n" | /bin/mail -s "** $NOTIFICATIONTYPE$ Host Alert: $HOSTNAME$ is $HOSTSTATE$ **" $CONTACTEMAIL$
}

# 'notify-service-by-email' command definition
define command{
command_name notify-service-by-email
command_line /usr/bin/printf "%b" "***** Nagios *****\n\nNotification Type: $NOTIFICATIONTYPE$\n\nService: $SERVICEDESC$\nHost: $HOSTALIAS$\nAddress: $HOSTADDRESS$\nState: $SERVICESTATE$\n\nDate/Time: $LONGDATETIME$\n\nAdditional Info:\n\n$SERVICEOUTPUT$\n" | /bin/mail -s "** $NOTIFICATIONTYPE$ Service Alert: $HOSTALIAS$/$SERVICEDESC$ is $SERVICESTATE$ **" $CONTACTEMAIL$
}


~dp

[tmcdonald]

Here is the output!
WARNING: Only 244.37G (13%) free on \\stor2\nagios | 'nagios'=1697358597120B;1567800201216;1763775226368;0;1959750251520

Could you run the command as I had posted it? We need the output saved to a file so we can inspect the file as opposed to just the text.

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./check_disk_smb -H stor2 -s nagios -u nagios -p smbMonit0r -w 80 -c 90 > output.txt

[drewbpearson]

Sure....Im hoping Im doing this correctly...pls let me know...Im not 100% sure how to make it display as you did....
dp

[tmcdonald]

On the command line you are showing "\\stor2\nagios" but in the email it is "92.168.71.21". Very odd.

Can you show us the output of a working command? Save to file like before and post it. Also can you share the config files for these two checks?

[drewbpearson]

Ok I hope its all here...thx for the patience!

Host Definition:

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# 'stor2' host definition
define host{
        use             71-server
        host_name       stor2
        alias           stor2
        address         192.168.71.21
        }

Service Definition:

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define service{
        use                             generic-service
        host_name                       stor2
        service_description             check_disk_smb
        check_period                    workhours
        max_check_attempts              3
        normal_check_interval           10
        retry_check_interval            2
        contact_groups                  admins
        notification_interval           120
        notification_period             workhours
        check_command                   check_disk_smb!nagios!nagios!smbMonit0r!80!90
        }

Host Definition to working check:

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# 'svr001' host definition
define host{
        use             71-server
        host_name       svr001
        alias           svr001
        address         192.168.71.22
        }

Service definition: working

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define service{
        use                             generic-service
        host_name                       svr001
        service_description             check_file_age
        is_volatile                     0
        check_period                    workhours
        max_check_attempts              3
        normal_check_interval           10
        retry_check_interval            2
        contact_groups                  admins
        notification_interval           120
        notification_period             workhours
        check_command                   check_file_age!18000!21600!/data/rsnapshot-svr001/hourly.0
        }

PS: more info....
# 'check_disk_smb' command definition
define command{
command_name check_disk_smb
command_line $USER1$/check_disk_smb -H $HOSTADDRESS$ -s $ARG1$ -u $ARG2$ -p $ARG3$ -w $ARG4$ -c $ARG5$
}
~dp