How to use alias from NSClient in Nagios

[Melanie123]

Hi all,

I have Nagios Core 3.5.1 on Ubuntu and monitoring remote Windows 7.
I installed NSClient++ there, the check_nt plugins work. Currently, I started to play with check_nrpe and I would ask for help.

I declared on remote host in the nsclient.ini:

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[/settings/external scripts/alias]
alias_test = CheckDriveSize FilterType=FIXED matching=.*[CD].* ShowAll=long CheckAll $ARG1$ $ARG2$ $ARG3$ $ARG4$

On Nagios, when I write:

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root@ubuntu:/usr/local/nagios/libexec# ./check_nrpe -H xxx.xxx.xx.xxx -c alias_test

I have answer:

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OK C:\: Total: 78.702GB - Used: 18.597GB (24%) - Free: 60.105GB (76%), D:\: Total: 81.295GB - Used: 3.49GB (5%) - Free: 77.804GB (95%)|'C:\ used'=18.59669GB;62.96171;70.83193;0;78.70214 'C:\ used %'=24%;80;90;0;100 'D:\ used'=3.49046GB;65.03593;73.16542;0;81.29491 'D:\ used %'=4%;80;90;0;100

But now I would like to see it on the website.
I've tried various combinations found (changes in commands.cfg, windows.cfg) on the internet, but the effect is that I always have "Status Information: (Return code of 127 is out of bounds - plugin may be missing)"

I will mention that I also have a problem with the plugin check_nrpe. On the example of check_users, where:
In commands.cfg:

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define command{
 	command_name 	check_nrpe
 	command_line 	$USER1$/check_nrpe -H $HOSTADDRESS$ -c $ARG1$ 
 	}

In nrpe.cfg on Nagios:

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# The following examples use hardcoded command arguments...

command[check_users]=/usr/local/nagios/libexec/check_users -w 5 -c 10

And in windows.cfg:

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define service{
    use                 generic-service
    host_name           StacjaWindows
    service_description nrpe_Users
    check_command       check_nrpe!check_users
}

On website I have answer: "(Return code of 127 is out of bounds - plugin may be missing)".
On command line:

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root@ubuntu:/usr/local/nagios/libexec# ./check_nrpe -H xxx.xxx.xx.xxx -c check_users
Unknown command(s): check_users

Any ideas? Thanks for any help!
Regards

[scottwilkerson]

you should be able to just do this

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define service{
    use                 generic-service
    host_name           StacjaWindows
    service_description alias_test
    check_command       check_nrpe!alias_test
}

If you keep getting "Return code of 127 is out of bounds - plugin may be missing" this is file permissions
show us the output of the following

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cat /usr/local/nagios/etc/resources.cfg
ls -al /usr/local/nagios/
ls -al /usr/local/nagios/libexec

[Melanie123]

I've tried this service before, but the result is this:

Again "(Return code of 127 is out of bounds - plugin may be missing)"...

I don't have config resources.cfg:

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root@ubuntu:/home/monkol13# cat /usr/local/nagios/etc/resources.cfg
cat: /usr/local/nagios/etc/resources.cfg: No such file or directory

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root@ubuntu:/home/monkol13# ls -al /usr/local/nagios/
total 32
drwxr-xr-x  8 nagios nagios 4096 Feb 27 16:00 .
drwxr-xr-x 12 root   root   4096 Dec 15 16:01 ..
drwxr-xr-x  2 nagios nagios 4096 Feb 27 16:02 bin
drwxrwxr-x  3 nagios nagios 4096 Mar  7 17:05 etc
drwxr-xr-x  2 root   root   4096 Feb 27 16:00 include
drwxrwxr-x  2 nagios nagios 4096 Feb 27 16:02 libexec
drwxr-xr-x  3 root   root   4096 Feb 27 16:00 share
drwxr-xr-x  3 nagios nagios 4096 Mar  8 11:02 var

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root@ubuntu:/home/monkol13# ls -al /usr/local/nagios/libexec
total 11120
drwxrwxr-x 2 nagios nagios   4096 Feb 27 16:02 .
drwxr-xr-x 8 nagios nagios   4096 Feb 27 16:00 ..
-rwxr-xr-x 1 root   nagios 251280 Feb 27 16:00 check_apt
-rwxr-xr-x 1 root   nagios   6897 Feb 27 16:02 check_asterisk.pl
-rwxr-xr-x 1 root   nagios   1978 Feb 27 16:02 check_asterisk_sip_peers.sh
-rwxr-xr-x 1 root   nagios   2346 Feb 27 16:00 check_breeze
-rwxr-xr-x 1 root   nagios 258264 Feb 27 16:00 check_by_ssh
-rwxr-xr-x 1 root   nagios   6632 Feb  8 13:32 check_cisco_old.pl
-rwxr-xr-x 1 root   nagios  16210 Feb 20 15:15 check_cisco.pl
lrwxrwxrwx 1 root   root        9 Feb 27 16:00 check_clamd -> check_tcp
-rwxr-xr-x 1 root   nagios 196480 Feb 27 16:00 check_cluster
-rwxr-xr-x 1 root   nagios   5582 Feb 27 16:02 check_cpu_stats.sh
-rwxr-xr-x 1 root   nagios  25758 Feb 20 16:31 check_cpu_udc.pl
-rwxr-xr-x 1 root   nagios 259104 Sep 26 13:31 check_dbi
-rwsr-xr-x 1 root   nagios 259072 Feb 27 16:00 check_dhcp
-rwxr-xr-x 1 root   nagios 248040 Feb 27 16:00 check_dig
-rwxr-xr-x 1 root   nagios 270224 Feb 27 16:00 check_disk
-rwxr-xr-x 1 root   nagios  40020 Apr 19  2017 check_disk.c
-rwxr-xr-x 1 root   nagios   9469 Feb 27 16:00 check_disk_smb
-rwxr-xr-x 1 root   nagios 278744 Feb 27 16:00 check_dns
-rwxr-xr-x 1 root   nagios 152432 Feb 27 16:00 check_dummy
-rwxr-xr-x 1 root   nagios   3860 Feb 27 16:00 check_file_age
-rwxr-xr-x 1 root   nagios   6504 Feb 27 16:00 check_flexlm
-rwxr-xr-x 1 root   nagios 258432 Sep 26 13:31 check_fping
lrwxrwxrwx 1 root   root        9 Feb 27 16:00 check_ftp -> check_tcp
-rwxr-xr-x 1 root   nagios 221832 Sep 26 13:31 check_game
-rwxr-xr-x 1 root   nagios 250064 Feb 27 16:00 check_hpjd
-rwxr-xr-x 1 root   nagios 419960 Feb 27 16:00 check_http
-rwsr-xr-x 1 root   nagios 271624 Feb 27 16:00 check_icmp
-rwxr-xr-x 1 root   nagios 204192 Feb 27 16:00 check_ide_smart
-rwxr-xr-x 1 root   nagios  15275 Feb 27 16:00 check_ifoperstatus
-rwxr-xr-x 1 root   nagios  13423 Feb 27 16:00 check_ifstatus
lrwxrwxrwx 1 root   root        9 Feb 27 16:00 check_imap -> check_tcp
-rwsr-xr-x 1 root   nagios    972 Feb 27 16:02 check_init_service
-rwxr-xr-x 1 root   nagios   6984 Feb 27 16:00 check_ircd
lrwxrwxrwx 1 root   root        9 Feb 27 16:00 check_jabber -> check_tcp
-rwxr-xr-x 1 root   nagios 232112 Sep 26 13:31 check_ldap
lrwxrwxrwx 1 root   root       10 Feb 27 16:00 check_ldaps -> check_ldap
-rwxr-xr-x 1 root   nagios 221576 Feb 27 16:00 check_load
-rwxr-xr-x 1 root   nagios   6669 Feb 27 16:00 check_log
-rwxr-xr-x 1 root   nagios  22733 Feb 27 16:00 check_mailq
-rwxr-xr-x 1 root   nagios 205160 Feb 27 16:00 check_mrtg
-rwxr-xr-x 1 root   nagios 206696 Feb 27 16:00 check_mrtgtraf
-rwxr-xr-x 1 root   nagios 247064 Sep 26 13:31 check_mysql
-rwxr-xr-x 1 root   nagios 231080 Sep 26 13:31 check_mysql_query
-rwxr-xr-x 1 root   nagios 222120 Feb 27 16:00 check_nagios
-rwxr-xr-x 1 root   nagios   3104 Sep 25 13:54 check_nagios.t
-rwxr-xr-x 1 root   nagios   9821 Sep 21 17:25 check_ncpa.py
-rwxr-xr-x 1 root   nagios  25602 Feb 27 16:02 check_netstat.pl
lrwxrwxrwx 1 root   root        9 Feb 27 16:00 check_nntp -> check_tcp
lrwxrwxrwx 1 root   root        9 Feb 27 16:00 check_nntps -> check_tcp
-rwxr-xr-x 1 root   nagios 175000 Feb 27 16:02 check_nrpe
-rwxr-xr-x 1 root   nagios 265792 Feb 27 16:00 check_nt
-rwxr-xr-x 1 root   nagios 264552 Feb 27 16:00 check_ntp
-rwxr-xr-x 1 root   nagios 253984 Feb 27 16:00 check_ntp_peer
-rwxr-xr-x 1 root   nagios 243040 Feb 27 16:00 check_ntp_time
-rwxr-xr-x 1 root   nagios 297768 Feb 27 16:00 check_nwstat
-rwxr-xr-x 1 root   nagios   3259 Feb 27 16:02 check_open_files.pl
-rwxr-xr-x 1 root   nagios   9457 Feb 27 16:00 check_oracle
-rwxr-xr-x 1 root   nagios 232888 Feb 27 16:00 check_overcr
-rwxr-xr-x 1 root   nagios 243336 Sep 26 13:31 check_pgsql
-rwxr-xr-x 1 root   nagios 266032 Feb 27 16:00 check_ping
lrwxrwxrwx 1 root   root        9 Feb 27 16:00 check_pop -> check_tcp
-rwxr-xr-x 1 root   nagios 261688 Feb 27 16:00 check_procs
-rwxr-xr-x 1 root   nagios 224304 Sep 26 13:31 check_radius
-rwxr-xr-x 1 root   nagios 225304 Feb 27 16:00 check_real
-rwxr-xr-x 1 root   nagios   9679 Feb 27 16:00 check_rpc
-rwxr-xr-x 1 root   nagios   1533 Feb 27 16:00 check_sensors
-rwxr-xr-x 1 root   nagios   2174 Feb 27 16:02 check_services
lrwxrwxrwx 1 root   root        9 Feb 27 16:00 check_simap -> check_tcp
-rwxr-xr-x 1 root   nagios   7599 Feb 27 16:02 check_sip
-rwxr-xr-x 1 root   nagios 315024 Feb 27 16:00 check_smtp
-rwxr-xr-x 1 root   nagios 328128 Feb 27 16:00 check_snmp
-rwxr-xr-x 1 root   nagios  33646 Feb 21 13:32 check_snmp_int.pl
lrwxrwxrwx 1 root   root        9 Feb 27 16:00 check_spop -> check_tcp
-rwxr-xr-x 1 root   nagios 222744 Feb 27 16:00 check_ssh
lrwxrwxrwx 1 root   root        9 Feb 27 16:00 check_ssmtp -> check_tcp
-rwxr-xr-x 1 root   nagios 199648 Feb 27 16:00 check_swap
-rwxr-xr-x 1 root   nagios 296984 Feb 27 16:00 check_tcp
-rwxr-xr-x 1 root   nagios 223888 Feb 27 16:00 check_time
lrwxrwxrwx 1 root   root        9 Feb 27 16:00 check_udp -> check_tcp
-rwxr-xr-x 1 root   nagios 240240 Feb 27 16:00 check_ups
-rwxr-xr-x 1 root   nagios 191104 Feb 27 16:00 check_uptime
-rwxr-xr-x 1 root   nagios 189064 Feb 27 16:00 check_users
-rwxr-xr-x 1 root   nagios   3032 Feb 27 16:00 check_wave
-rwxr-xr-x 1 root   nagios    710 Feb 27 16:02 check_yum
-rwxr-xr-x 1 root   nagios   3435 Feb 27 16:02 custom_check_mem
-rwxr-xr-x 1 root   nagios    915 Feb 27 16:02 custom_check_procs
-rwxr-xr-x 1 root   nagios   4176 Feb 27 16:02 nagisk.pl
-rwxr-xr-x 1 root   nagios 187808 Feb 27 16:00 negate
-rwxr-xr-x 1 root   nagios 184392 Feb 27 16:00 urlize
-rwxr-xr-x 1 root   nagios   1949 Feb 27 16:00 utils.pm
-rwxr-xr-x 1 root   nagios   2791 Feb 27 16:00 utils.sh

[scottwilkerson]

can you attach your nagios.cfg we need to figure out where your user macros are being set so we know what $USER1$ equates to

[Melanie123]

Oh my God, thank you very much!

In my nagios.cfg I have a small mess:

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resource_file=/etc/nagios3/resource.cfg

I went to resource.cfg and found this:

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$USER1$=/usr/lib/nagios/plugins

But... I have all my plugins in "/usr/local/nagios/libexec".

I changed everything and it works now.
Thank you very much for directing! In case of problems, I will ask you again.

Best wishes!

[scottwilkerson]

Awesome.. I'm glad to be of assistance!