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Return code of 255 is out of bounds
Posted: Fri Aug 24, 2018 5:44 am
by RIDS_I2MP
Hello Team,
I am monitoring a Windows server in Nagios. All the services are being monitored properly but, I am facing issue with only one service, i.e., "Physical Memory Utilization". I was getting error "Socket timeout after 30 seconds" which I could resolve by creating a copy of check_nrpe command and changing the "-t" value to 300 which was 30 by default ($USER1$/check_nrpe -H $HOSTADDRESS$ -t 300 -c $ARG1$ $ARG2$).
Now I am getting another error as "(Return code of 255 is out of bounds)". I googled about it and found that it usually comes if NSC++ is not running. I reinstalled the NSC++ client and started the service, but I am still getting the same error.
Kindly, please help me with this issue.
Re: Return code of 255 is out of bounds
Posted: Fri Aug 24, 2018 10:48 am
by npolovenko
Hello,
@RIDS_I2MP. Please upload the nsclient.ini file from the Windows server as well as the nsclient.log file. Also, please show the command you're using to check the Memory Utilization.
Re: Return code of 255 is out of bounds
Posted: Mon Aug 27, 2018 4:24 am
by RIDS_I2MP
Hello,
I am attaching the nsclient.ini file from the Windows server as well as the nsclient.log file.
Also, attaching the details related to command for physical memory utilization.
Thank you for your reply
Re: Return code of 255 is out of bounds
Posted: Mon Aug 27, 2018 1:03 pm
by ssax
Does it give the same output when you run it from the command line?
- Note: Make sure to change X.X.X.X to the IP address of the host
Code: Select all
/usr/local/nagios/libexec/check_nrpe -H X.X.X.X -t 300 -c CheckMEM -a ShowAll type=physical MaxWarn=90% MaxCrit=95%
Additionally, what version of NSClient++ do you have running?
Re: Return code of 255 is out of bounds
Posted: Tue Aug 28, 2018 2:39 am
by RIDS_I2MP
Hello,
I have ran the below command by opening command prompt in Windows server.
/usr/local/nagios/libexec/check_nrpe -H X.X.X.X -t 300 -c CheckMEM -a ShowAll type=physical MaxWarn=90% MaxCrit=95%
It returned an error saying "The system cannot find the path specified". I am attchiing the output here.
Also, I tried checking NSClient++ version in properties, attaching the output for the same.
Re: Return code of 255 is out of bounds
Posted: Tue Aug 28, 2018 11:49 am
by ssax
Sorry, you need to run this command from the XI server:
Code: Select all
/usr/local/nagios/libexec/check_nrpe -H X.X.X.X -t 300 -c CheckMEM -a ShowAll type=physical MaxWarn=90% MaxCrit=95%
Re: Return code of 255 is out of bounds
Posted: Thu Aug 30, 2018 2:20 am
by RIDS_I2MP
Hello,
I ran the below command in Nagios XI server:
Nagios server : 10.144.223.155
Monitoring server: 10.151.1.90
[nagios@eu1papu002 ~]$ /usr/local/nagios/libexec/check_nrpe -H 10.144.223.155 -t 300 -c CheckMEM -a ShowAll type=physical MaxWarn=90% MaxCrit=95%
CHECK_NRPE: Error - Could not complete SSL handshake.
[nagios@eu1papu002 ~]$
[nagios@eu1papu002 ~]$ /usr/local/nagios/libexec/check_nrpe -H 10.151.1.90 -t 300 -c CheckMEM -a ShowAll type=physical MaxWarn=90% MaxCrit=95%
connect to address 10.151.1.90 port 5666: Connection timed out
connect to host 10.151.1.90 port 5666: Connection timed out[nagios@eu1papu002 ~]$ ^C
[nagios@eu1papu002 ~]$
Re: Return code of 255 is out of bounds
Posted: Thu Aug 30, 2018 10:34 am
by lmiltchev
Looking at the config name (NSC.ini), I would guess that you are using a very old version of NSClient++, probably 0.3.9? Let't try to find out the version number, so that we could try recreating the issue in-house.
Run the following command from the command line on the Nagios XI server, and show the output (obfuscate sensitive info):
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/usr/local/nagios/libexec/check_nt -H <windows server ip> -p 12489 -s <password> -v CLIENTVERSION
Also, can you try adding "-2" to your command to see if this is going to fix the issue?
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/usr/local/nagios/libexec/check_nrpe -2 -H 10.144.223.155 -t 300 -c CheckMEM -a ShowAll type=physical MaxWarn=90% MaxCrit=95%
Re: Return code of 255 is out of bounds
Posted: Fri Aug 31, 2018 12:37 am
by RIDS_I2MP
Hello,
I have ran the commands in XI server and attached the output here.
Just wanted to add one more thing, there are other services like CPU utilization, C drive disk pace utilization, etc. are also being monitored on that server, but all of them are running fine. I am just facing issue with physical memory utilization. So I do not think that there would be any version problem here.
Re: Return code of 255 is out of bounds
Posted: Fri Aug 31, 2018 8:51 am
by lmiltchev
You must have special characters in the password as bash complained. Try wrapping the password in single quotes, rerun the command and show the output:
Code: Select all
/usr/local/nagios/libexec/check_nt -H <windows server ip> -p 12489 -s '<password>' -v CLIENTVERSION
The "-2" flag didn't work as this option was not available in the old NRPE (v. 2.15) - I didn't realize you were using that version.
Just wanted to add one more thing, there are other services like CPU utilization, C drive disk pace utilization, etc. are also being monitored on that server, but all of them are running fine. I am just facing issue with physical memory utilization. So I do not think that there would be any version problem here.
Are the "working" services use check_nrpe or check_nt?
Change the following line in the NSC.ini under the [NRPE] section from this:
to this:
Next, change the following lines under the [External Script] section from this:
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;allow_arguments=0
;allow_nasty_meta_chars=0
to this:
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allow_arguments=1
allow_nasty_meta_chars=1
and restart nsclient++ service.
Next run the commands below, and show the output:
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/usr/local/nagios/libexec/check_nrpe -H 10.144.223.155
/usr/local/nagios/libexec/check_nrpe -H 10.144.223.155 -c alias_cpu
/usr/local/nagios/libexec/check_nrpe -H 10.144.223.155 -c alias_mem
/usr/local/nagios/libexec/check_nrpe -H 10.144.223.155 -c CheckMEM -a MaxWarn=90% MaxCrit=95% ShowAll type=physical
If these commands fail, upload the nsclient.log on the forum.