Nagios Support Forum

Posted: **Mon Jul 16, 2018 1:20 pm**

Hello,

it is my first time setting up nagios core on ubuntu server 18LTS. for the most part i followed online tutorials and this has helped me a lot. and i was able to do a lot. i wanted to add a windows server 2016 host - this seems a bit trickie.
i have installed nsclient++ on the server.
this is what i get in the nagios screen :

winserver C:\ Drive Space UNKNOWN 07-16-2018 17:58:36 0d 0h 12m 44s 3/3 check_nt: Could not parse arguments
CPU Load UNKNOWN 07-16-2018 17:59:35 0d 0h 11m 45s 3/3 check_nt: Could not parse arguments
Memory UsageUNKNOWN 07-16-2018 18:01:32 0d 0h 11m 21s 3/3 check_nt: Could not parse arguments
en so on .... for others

can someone please help me with this ? what info do you need ?

vim /usr/local/nagios/etc/nagios.cfg:
cfg_file=/usr/local/nagios/etc/objects/localhost.cfg
cfg_file=/usr/local/nagios/etc/objects/windows.cfg ( windows server 2016 file)

vi /usr/local/nagios/etc/objects/windows.cfg: ( some commands - you get the picture)

Code: Select all

define host {

    use                     windows-server          ; Inherit default values from a template
    host_name               winserver               ; The name we're giving to this host
    alias                   My Windows Server       ; A longer name associated with the host
    address                 192.168.174.10            ; IP address of the host
}
define hostgroup {

    hostgroup_name          windows-servers         ; The name of the hostgroup
    alias                   Windows Servers         ; Long name of the group
}
define service {

    use                     generic-service
    host_name               winserver
    service_description     Uptime
    check_command           check_nt!UPTIME
}
define service {

    use                     generic-service
    host_name               winserver
    service_description     CPU Load
    check_command           check_nt!CPULOAD!-l 5,80,90
}
define service {

    use                     generic-service
    host_name               winserver
    service_description     Memory Usage
    check_command           check_nt!MEMUSE!-w 80 -c 90
}

define service {

    use                     generic-service
    host_name               winserver
    service_description     C:\ Drive Space
    check_command           check_nt!USEDDISKSPACE!-l c -w 80 -c 90
}

define service {

    use                     generic-service
    host_name               winserver
    service_description     W3SVC
    check_command           check_nt!SERVICESTATE!-d SHOWALL -l W3SVC
}

define service {

    use                     generic-service
    host_name               winserver
    service_description     Explorer
    check_command           check_nt!PROCSTATE!-d SHOWALL -l Explorer.exe
}

vim /usr/local/nagios/etc/objects/commands.cfg ( some commands - you get the picture)

Code: Select all

define command {

    command_name    check-host-alive
    command_line    $USER1$/check_ping -H $HOSTADDRESS$ -w 3000.0,80% -c 5000.0,100% -p 5
}

define command {

    command_name    check_local_disk
    command_line    $USER1$/check_disk -w $ARG1$ -c $ARG2$ -p $ARG3$
}


define command {

    command_name    check_local_load
    command_line    $USER1$/check_load -w $ARG1$ -c $ARG2$
}

define command {

    command_name    check_local_procs
    command_line    $USER1$/check_procs -w $ARG1$ -c $ARG2$ -s $ARG3$
}

define command {

    command_name    check_nt
    command_line    $USER1$/check_nt -H 192.168.174.10 -p 12489 -v -s dhpBh6O4Meyc7DFS $ARG1$ $ARG2$
}

when i cd to cd /usr/local/nagios/libexec and execute the following: ./check_nt -H 192.168.174.10 -p 12489 -s dhpBh6O4Meyc7DFS -v CLIENTVERSION
i get: NSClient++ 0.5.2.35 2018-01-28

when i execute :

root@nagios:/usr/local/nagios/libexec# /usr/local/nagios/libexec/check_nt -H 192.168.174.10 -p 12489 -s dhpBh6O4Meyc7DFS -v MEMUSE
Memory usage: total:5502.99 MB - used: 1404.93 MB (26%) - free: 4098.05 MB (74%) | 'Memory usage'=1404.93MB;0.00;0.00;0.00;5502.99

so is this working ??? i don't understand what i'm doing wrong. can some please kindly help me with this perhaps ?
kind regards

Posted: **Mon Jul 16, 2018 4:57 pm**

@hellheim, Glad you made it this far. So here's your service definition:

Code: Select all

define service {

    use                     generic-service
    host_name               winserver
    service_description     Memory Usage
    check_command           check_nt!MEMUSE!-w 80 -c 90
}

And here is the command:

Code: Select all

define command {

    command_name    check_nt
    command_line    $USER1$/check_nt -H 192.168.174.10 -p 12489 -v -s dhpBh6O4Meyc7DFS $ARG1$ $ARG2$
}

! is a divider between $ARGS$. So once this service checks passes through the command it's going to look like this:

Code: Select all

/usr/local/nagios/libexec/check_nt -H 192.168.174.10 -p 12489 -v -s dhpBh6O4Meyc7DFS MEMUSE -w 80 -c 90

So, this worked:

Code: Select all

root@nagios:/usr/local/nagios/libexec# /usr/local/nagios/libexec/check_nt -H 192.168.174.10 -p 12489 -s dhpBh6O4Meyc7DFS -v MEMUSE
Memory usage: total:5502.99 MB - used: 1404.93 MB (26%) - free: 4098.05 MB (74%) | 'Memory usage'=1404.93MB;0.00;0.00;0.00;5502.99

But thry with the arguments:

Code: Select all

/usr/local/nagios/libexec/check_nt -H 192.168.174.10 -p 12489 -v -s dhpBh6O4Meyc7DFS MEMUSE -w 80 -c 90

Posted: **Tue Jul 17, 2018 12:40 am**

okay, but what do i change in order for the error do go away.
i'm sorry if i son't understand.
where do i change the command ??
because when i change command to this like so :

define service {

use generic-service
host_name winserver
service_description Memory Usage
# check_command check_nt!MEMUSE!-w 80 -c 90
check_command /usr/local/nagios/libexec/check_nt -H 192.168.174.10 -p 12489 -v -s dhpBh6O4Meyc7DFS MEMUSE -w 80 -c 90
}

i get error when restarting nagios service
so this is probably not the way

Posted: **Wed Jul 18, 2018 12:22 pm**

You need to pass an argument, e.g. MEMUSE, after the "-v"... It is not going to work the way you have your check_nt command defined as of now... Change your command to:

Code: Select all

define command {
    command_name    check_nt
    command_line    $USER1$/check_nt -H $HOSTADDRESS$ -p 12489 -s dhpBh6O4Meyc7DFS -v $ARG1$ $ARG2$
}

Testing from the command line:

Code: Select all

/usr/local/nagios/libexec/check_nt -H 192.168.174.10 -p 12489 -s dhpBh6O4Meyc7DFS -v MEMUSE -w 80 -c 90

$HOSTADDRESS$ will resolve to your winserver IP address
$ARG1$ is 'MEMUSE'
$ARG2$ is '-w 80 -c 90'

With the check_nt configured this way, you should be able to use your existing "Memory Usage" service definition.

Code: Select all

define service {

    use                     generic-service
    host_name               winserver
    service_description     Memory Usage
    check_command           check_nt!MEMUSE!-w 80 -c 90
}

Test your configuration, just in case before restarting nagios:

Code: Select all

/usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg

Nagios cannot start/restart with config errors. If you see any errors, post them on the forum. Thanks!

Posted: **Wed Jul 18, 2018 2:14 pm**

awesome !
this is working now, thank you so much for this help. thank you for explaining so good to me.
all services a put in are working, i commented some because i don't want to see all.

but i have this :
winserver

C:\ Drive Space

OK 07-18-2018 19:11:52 0d 0h 11m 1s 1/3 c: - total: 50.40 Gb - used: 26.48 Gb (53%) - free 23.92 Gb (47%)

CPU Load

OK 07-18-2018 19:11:40 0d 0h 21m 13s 1/3 CPU Load 1% (5 min average)

Memory Usage

OK 07-18-2018 19:03:38 0d 0h 9m 15s 1/3 Memory usage: total:5502.99 MB - used: 1444.64 MB (26%) - free: 4058.35 MB (74%)

NSClient++ Version

OK 07-18-2018 19:04:36 0d 0h 18m 17s 1/3 NSClient++ 0.5.2.35 2018-01-28

Uptime

OK 07-18-2018 19:05:35 0d 0h 17m 18s 1/3 System Uptime - 0 day(s) 0 hour(s) 19 minute(s)

looking okay to me

thank you so much for taking the effort in helping me !

Posted: **Wed Jul 18, 2018 2:33 pm**

Great! I am glad I could help!

I will be locking this topic now. If you have any more questions/issues, please start a new thread.

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