<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"> <head> <meta http-equiv=Content-Type content="text/html; charset=utf-8"> <meta name=Generator content="Microsoft Word 12 (filtered medium)"> <style>  </style>  </head> <body lang=EN-US link=blue vlink=purple> <div class=Section1> This is probably either a firewall issue or you haven’t configured xinetd properly for your nagios server:<o:p></o:p> <o:p> </o:p> Try: cat /etc/xinetd.d/nrpe<o:p></o:p> <o:p> </o:p> # default: on<o:p></o:p> # description: NRPE (Nagios Remote Plugin Executor)<o:p></o:p> service nrpe<o:p></o:p> {<o:p></o:p> flags = REUSE<o:p></o:p> socket_type = stream <o:p></o:p> port = 5666 <o:p></o:p> wait = no<o:p></o:p> user = nagios<o:p></o:p> group = nagios<o:p></o:p> server = /usr/local/nagios/bin/nrpe<o:p></o:p> server_args = -c /usr/local/nagios/etc/nrpe.cfg --inetd<o:p></o:p> log_on_failure += USERID<o:p></o:p> disable = no<o:p></o:p> only_from = 127.0.0.1 10.5.1.32 ß You need to make sure your server IP is listed here – just need a space between the IPs (no comma, quotes etc).<o:p></o:p> }<o:p></o:p> <o:p> </o:p> IP restrictions in nrpe.cfg aren’t used if you are using xinetd<o:p></o:p> <o:p> </o:p> <o:p> </o:p> <div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'> From: nagios-users-bounces@lists.sourceforge.net [mailto:nagios-users-bounces@lists.sourceforge.net] On Behalf Of Mad Unix Sent: Wednesday, January 02, 2008 10:13 AM To: Marc Powell Cc: nagios-users@lists.sourceforge.net Subject: Re: [Nagios-users] ping<o:p></o:p> </div> <o:p> </o:p> my nrpe.cfg [root@linux1 nagios]# vi nrpe.cfg ############################################################################# # Sample NRPE Config File # Written by: Ethan Galstad (<a href="mailto:nagios@nagios.org"> nagios@nagios.org</a>) # # Last Modified: 11-23-2007 # # NOTES: # This is a sample configuration file for the NRPE daemon. It needs to be # located on the remote host that is running the NRPE daemon, not the host # from which the check_nrpe client is being executed. ############################################################################# # LOG FACILITY # The syslog facility that should be used for logging purposes. log_facility=daemon # PID FILE # The name of the file in which the NRPE daemon should write it's process ID # number. The file is only written if the NRPE daemon is started by the root # user and is running in standalone mode. pid_file=/var/run/nrpe.pid # PORT NUMBER # Port number we should wait for connections on. # NOTE: This must be a non-priviledged port (i.e. > 1024). # NOTE: This option is ignored if NRPE is running under either inetd or xinetd server_port=5666 # SERVER ADDRESS /dont # # NOTE: This option is ignored if NRPE is running under either inetd or xinetd allowed_hosts=<a href="http://127.0.0.1">127.0.0.1</a>, <a href="http://10.5.1.32">10.5.1.32</a> # COMMAND ARGUMENT PROCESSING # This option determines whether or not the NRPE daemon will allow clients # to specify arguments to commands that are executed. This option only works # if the daemon was configured with the --enable-command-args configure script # option. # # *** ENABLING THIS OPTION IS A SECURITY RISK! *** # Read the SECURITY file for information on some of the security implications # of enabling this variable. # # Values: 0=do not allow arguments, 1=allow command arguments dont_blame_nrpe=1 # COMMAND PREFIX # This option allows you to prefix all commands with a user-defined string. # A space is automatically added between the specified prefix string and the # command line from the command definition. # # *** THIS EXAMPLE MAY POSE A POTENTIAL SECURITY RISK, SO USE WITH CAUTION! *** # Usage scenario: # Execute restricted commmands using sudo. For this to work, you need to add # the nagios user to your /etc/sudoers. An example entry for alllowing # execution of the plugins from might be: # # nagios ALL=(ALL) NOPASSWD: /usr/lib/nagios/plugins/ # # This lets the nagios user run all commands in that directory (and only them) # without asking for a password. If you do this, make sure you don't give # random users write access to that directory or its contents! ############################################################################# # Sample NRPE Config File # Written by: Ethan Galstad (<a href="mailto:nagios@nagios.org"> nagios@nagios.org</a>) # # Last Modified: 11-23-2007 # # NOTES: # This is a sample configuration file for the NRPE daemon. It needs to be # located on the remote host that is running the NRPE daemon, not the host # from which the check_nrpe client is being executed. ############################################################################# # LOG FACILITY # The syslog facility that should be used for logging purposes. log_facility=daemon # PID FILE # The name of the file in which the NRPE daemon should write it's process ID # number. The file is only written if the NRPE daemon is started by the root # user and is running in standalone mode. pid_file=/var/run/nrpe.pid # PORT NUMBER # Port number we should wait for connections on. # NOTE: This must be a non-priviledged port (i.e. > 1024). # NOTE: This option is ignored if NRPE is running under either inetd or xinetd server_port=5666 # SERVER ADDRESS # Address that nrpe should bind to in case there are more than one interface # and you do not want nrpe to bind on all interfaces. # NOTE: This option is ignored if NRPE is running under either inetd or xinetd #server_address=<a href="http://127.0.0.1">127.0.0.1</a> # NRPE USER # This determines the effective user that the NRPE daemon should run as. # You can either supply a username or a UID. # # NOTE: This option is ignored if NRPE is running under either inetd or xinetd nrpe_user=nagios # NRPE GROUP # This determines the effective group that the NRPE daemon should run as. # You can either supply a group name or a GID. # # NOTE: This option is ignored if NRPE is running under either inetd or xinetd nrpe_group=nagios # ALLOWED HOST ADDRESSES # This is an optional comma-delimited list of IP address or hostnames # that are allowed to talk to the NRPE daemon. # # Note: The daemon only does rudimentary checking of the client's IP # address. I would highly recommend adding entries in your /etc/hosts.allow # file to allow only the specified host to connect to the port # you are running this daemon on. # # NOTE: This option is ignored if NRPE is running under either inetd or xinetd allowed_hosts=<a href="http://127.0.0.1">127.0.0.1</a>, <a href="http://10.5.1.32">10.5.1.32</a> # COMMAND ARGUMENT PROCESSING # This option determines whether or not the NRPE daemon will allow clients # to specify arguments to commands that are executed. This option only works # if the daemon was configured with the --enable-command-args configure script # option. # # *** ENABLING THIS OPTION IS A SECURITY RISK! *** # Read the SECURITY file for information on some of the security implications # of enabling this variable. # # Values: 0=do not allow arguments, 1=allow command arguments dont_blame_nrpe=1 # COMMAND PREFIX # This option allows you to prefix all commands with a user-defined string. # A space is automatically added between the specified prefix string and the # command line from the command definition. # # *** THIS EXAMPLE MAY POSE A POTENTIAL SECURITY RISK, SO USE WITH CAUTION! *** # Usage scenario: # Execute restricted commmands using sudo. For this to work, you need to add # the nagios user to your /etc/sudoers. An example entry for alllowing # execution of the plugins from might be: # # nagios ALL=(ALL) NOPASSWD: /usr/lib/nagios/plugins/ # # This lets the nagios user run all commands in that directory (and only them) # without asking for a password. If you do this, make sure you don't give # random users write access to that directory or its contents! # command_prefix=/usr/bin/sudo # DEBUGGING OPTION # This option determines whether or not debugging messages are logged to the # syslog facility. # Values: 0=debugging off, 1=debugging on debug=0 # COMMAND TIMEOUT # This specifies the maximum number of seconds that the NRPE daemon will # allow plugins to finish executing before killing them off. command_timeout=60 # CONNECTION TIMEOUT # This specifies the maximum number of seconds that the NRPE daemon will # wait for a connection to be established before exiting. This is sometimes # seen where a network problem stops the SSL being established even though # all network sessions are connected. This causes the nrpe daemons to # accumulate, eating system resources. Do not set this too low. connection_timeout=300 # WEEK RANDOM SEED OPTION # This directive allows you to use SSL even if your system does not have # a /dev/random or /dev/urandom (on purpose or because the necessary patches # were not applied). The random number generator will be seeded from a file # which is either a file pointed to by the environment valiable $RANDFILE # or $HOME/.rnd. If neither exists, the pseudo random number generator will # be initialized and a warning will be issued. # Values: 0=only seed from /dev/[u]random, 1=also seed from weak randomness #allow_weak_random_seed=1 # INCLUDE CONFIG FILE # This directive allows you to include definitions from an external config file. #include=<somefile.cfg> # INCLUDE CONFIG DIRECTORY # This directive allows you to include definitions from config files (with a # .cfg extension) in one or more directories (with recursion). #include_dir=<somedirectory> #include_dir=<someotherdirectory> # COMMAND DEFINITIONS # Command definitions that this daemon will run. Definitions # are in the following format: # # command[<command_name>]=<command_line> # # When the daemon receives a request to return the results of <command_name> # it will execute the command specified by the <command_line> argument. # # Unlike Nagios, the command line cannot contain macros - it must be # typed exactly as it should be executed. # # Note: Any plugins that are used in the command lines must reside # on the machine that this daemon is running on! The examples below # assume that you have plugins installed in a /usr/local/nagios/libexec # directory. Also note that you will have to modify the definitions below # to match the argument format the plugins expect. Remember, these are # examples only! # The following examples use hardcoded command arguments... #command[check_users]=/usr/local/nagios/libexec/check_users -w 5 -c 10 #command[check_load]=/usr/local/nagios/libexec/check_load -w 15,10,5 -c 30,25,20 #command[check_hda1]=/usr/local/nagios/libexec/check_disk -w 20% -c 10% -p /dev/hda1 #command[check_zombie_procs]=/usr/local/nagios/libexec/check_procs -w 5 -c 10 -s Z #command[check_total_procs]=/usr/local/nagios/libexec/check_procs -w 150 -c 200 # The following examples allow user-supplied arguments and can # only be used if the NRPE daemon was compiled with support for # command arguments *AND* the dont_blame_nrpe directive in this # config file is set to '1'. This poses a potential security risk, so # make sure you read the SECURITY file before doing this. #command[check_users]=/usr/local/nagios/libexec/check_users -w $ARG1$ -c $ARG2$ #command[check_load]=/usr/local/nagios/libexec/check_load -w $ARG1$ -c $ARG2$ #command[check_disk]=/usr/local/nagios/libexec/check_disk -w $ARG1$ -c $ARG2$ -p $ARG3$ #command[check_procs]=/usr/local/nagios/libexec/check_procs -w $ARG1$ -c $ARG2$ -s $ARG3$ command[check_local_load]=/usr/local/nagios/libexec/check_ftp -w $ARG1$ -c $ARG2$ command[check_local_disk]=/usr/local/nagios/libexec/check_disk -w $ARG1$ -c $ARG2$ -p $ARG3$ command[check_local_users]=/usr/local/nagios/libexec/check_users -w $ARG1$ -c $ARG2$ command[check_local_load]=/usr/local/nagios/libexec/check_load -w $ARG1$ -c $ARG2$ command[check_local_procs]=/usr/local/nagios/libexec/check_procs -w $ARG1$ -c $ARG2$ command[check_ping]=/usr/local/nagios/libexec/check_ping -H $ARG1$ -w $ARG2$ -c $ARG3$ -p 5 #command[check_ping]=/usr/local/nagios/libexec/check_ping -H $HOSTADDRESS$ -w $ARG1$ -c $ARG2$ -p 5 #command[check_ping]=/usr/local/nagios/libexec/check_ping -H $HOSTADDRESS$ -w $ARG1$ -c $ARG2$<o:p></o:p> <div> On Jan 2, 2008 4:56 PM, Marc Powell <<a href="mailto:marc@ena.com">marc@ena.com</a>> wrote: <o:p></o:p> <div> > -----Original Message----- > From: <a href="mailto:nagios-users-bounces@lists.sourceforge.net">nagios-users-bounces@lists.sourceforge.net</a> [mailto:<a href="mailto:nagios-users-">nagios-users-</a> > <a href="mailto:bounces@lists.sourceforge.net">bounces@lists.sourceforge.net</a>] On Behalf Of Mad Unix<o:p></o:p> </div> <div> > Sent: Wednesday, January 02, 2008 7:52 AM > To: <a href="mailto:ad@heapoverflow.com">ad@heapoverflow.com</a> > Cc: <a href="mailto:nagios-users@lists.sourceforge.net">nagios-users@lists.sourceforge.net </a> > Subject: Re: [Nagios-users] ping > the error is starnge > check_ping: %s: Warning threshold must be integer or percentage<o:p></o:p> </div> It means that the argument to -w on the machine running check_ping is blank or not an integer or percentage. -- Marc<o:p></o:p> <div> ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. <a href="http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/" target="_blank">http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/</a> _______________________________________________ Nagios-users mailing list <a href="mailto:Nagios-users@lists.sourceforge.net">Nagios-users@lists.sourceforge.net</a><o:p></o:p> </div> <div> <div> <a href="https://lists.sourceforge.net/lists/listinfo/nagios-users" target="_blank">https://lists.sourceforge.net/lists/listinfo/nagios-users</a> ::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. ::: Messages without supporting info will risk being sent to /dev/null <o:p></o:p> </div> </div> </div> -- madunix <o:p></o:p> </div> </body> </html>