nagios配置方法总结
一: 安装完nagios后在 /usr/local/nagios/etc/objects/中定义 要监控的文件 （监控主机）
[root@nagios-Server objects]# ls
commands.cfg localhost.cfg switch.cfg test-001.cfg timeperiods.cfg | 这里的test.cfg ,test-001.cfg 是 配置文件对应的
contacts.cfg printer.cfg templates.cfg test.cfg windows.cfg | 主机Nagios-client01 与 Nagios-client02
[root@nagios-Server objects]#
上文中的 test.cfg test-001.cfg
commands.cfg localhost.cfg switch.cfg test-001.cfg timeperiods.cfg | 这里的test.cfg ,test-001.cfg 是 配置文件对应的
contacts.cfg printer.cfg templates.cfg test.cfg windows.cfg | 主机Nagios-client01 与 Nagios-client02
[root@nagios-Server objects]#
上文中的 test.cfg test-001.cfg
[root@nagios-Server objects]# cat test.cfg
define host{
use linux-server
host_name Nagios-client01
alias Nagios-client01
address 192.168.40.40
}
define service{
use generic-service
host_name Nagios-client01
service_description HTTP
check_command check_http
}
define service{
use generic-service
host_name Nagios-client01
service_description SSH
check_command check_ssh
}
define service{
use generic-service
host_name Nagios-client01
service_description check-load
check_command check_nrpe!check_load
}
define service{
use generic-service
host_name Nagios-client01
service_description check-disk-hda1
check_command check_nrpe!check_hda1
}
define service{
use generic-service
host_name Nagios-client01
service_description check-disk-hda3
check_command check_nrpe!check_hda3
}
define service{
use generic-service
host_name Nagios-client01
service_description total_procs
check_command check_nrpe!check_total_procs
}
define service{
use generic-service
host_name Nagios-client01
service_description PING
check_command check_ping!100.0,20%!500.0,60%
}
define service{
use generic-service
host_name Nagios-client01
service_description check-swap
check_command check_nrpe!check_swap
max_check_attempts 5
normal_check_interval 3
retry_check_interval 2
check_period 24x7
notification_interval 10
notification_period 24x7
notification_options w,u,c,r
}
[root@nagios-Server objects]#
[root@nagios-Server objects]# cat test-001.cfg
define host{
use linux-server
host_name Nagios-client02
alias Nagios-client02
address 192.168.40.30
}
define service{
use generic-service
host_name Nagios-client02
service_description HTTP
check_command check_http
}
define service{
use generic-service
host_name Nagios-client02
service_description SSH
check_command check_ssh
}
define service{
use generic-service
host_name Nagios-client02
service_description check-load
check_command check_nrpe!check_load
}
define service{
use generic-service
host_name Nagios-client02
service_description check-disk
check_command check_nrpe!check_hda1
}
define service{
use generic-service
host_name Nagios-client02
service_description check-disk-hda3
check_command check_nrpe!check_hda3
}
define service{
use generic-service
host_name Nagios-client02
service_description total_procs
check_command check_nrpe!check_total_procs
}
define service{
use generic-service
host_name Nagios-client02
service_description PING
check_command check_ping!100.0,20%!500.0,60%
}
define service{
use generic-service
host_name Nagios-client02
service_description check-swap
check_command check_nrpe!check_swap
max_check_attempts 5
normal_check_interval 3
retry_check_interval 2
check_period 24x7
notification_interval 10
notification_period 24x7
notification_options w,u,c,r
}
[root@nagios-Server objects]#
----------------------------------------
define host{
use linux-server
host_name Nagios-client01
alias Nagios-client01
address 192.168.40.40
}
define service{
use generic-service
host_name Nagios-client01
service_description HTTP
check_command check_http
}
define service{
use generic-service
host_name Nagios-client01
service_description SSH
check_command check_ssh
}
define service{
use generic-service
host_name Nagios-client01
service_description check-load
check_command check_nrpe!check_load
}
define service{
use generic-service
host_name Nagios-client01
service_description check-disk-hda1
check_command check_nrpe!check_hda1
}
define service{
use generic-service
host_name Nagios-client01
service_description check-disk-hda3
check_command check_nrpe!check_hda3
}
define service{
use generic-service
host_name Nagios-client01
service_description total_procs
check_command check_nrpe!check_total_procs
}
define service{
use generic-service
host_name Nagios-client01
service_description PING
check_command check_ping!100.0,20%!500.0,60%
}
define service{
use generic-service
host_name Nagios-client01
service_description check-swap
check_command check_nrpe!check_swap
max_check_attempts 5
normal_check_interval 3
retry_check_interval 2
check_period 24x7
notification_interval 10
notification_period 24x7
notification_options w,u,c,r
}
[root@nagios-Server objects]#
[root@nagios-Server objects]# cat test-001.cfg
define host{
use linux-server
host_name Nagios-client02
alias Nagios-client02
address 192.168.40.30
}
define service{
use generic-service
host_name Nagios-client02
service_description HTTP
check_command check_http
}
define service{
use generic-service
host_name Nagios-client02
service_description SSH
check_command check_ssh
}
define service{
use generic-service
host_name Nagios-client02
service_description check-load
check_command check_nrpe!check_load
}
define service{
use generic-service
host_name Nagios-client02
service_description check-disk
check_command check_nrpe!check_hda1
}
define service{
use generic-service
host_name Nagios-client02
service_description check-disk-hda3
check_command check_nrpe!check_hda3
}
define service{
use generic-service
host_name Nagios-client02
service_description total_procs
check_command check_nrpe!check_total_procs
}
define service{
use generic-service
host_name Nagios-client02
service_description PING
check_command check_ping!100.0,20%!500.0,60%
}
define service{
use generic-service
host_name Nagios-client02
service_description check-swap
check_command check_nrpe!check_swap
max_check_attempts 5
normal_check_interval 3
retry_check_interval 2
check_period 24x7
notification_interval 10
notification_period 24x7
notification_options w,u,c,r
}
[root@nagios-Server objects]#
----------------------------------------
第二 配置服务器端的command.cfg 该文件在 /usr/local/nagios/etc/objects/中
在这个文件中主要添加 nrpe command ，其次这个实例中没有添加对swap的监控，我们手动加入swap的监控参数。
[root@nagios-Server objects]# cat commands.cfg
配置完成后运行
在这个文件中主要添加 nrpe command ，其次这个实例中没有添加对swap的监控，我们手动加入swap的监控参数。
[root@nagios-Server objects]# cat commands.cfg
配置完成后运行
[root@nagios-Server objects]# cat commands.cfg
###############################################################################
# COMMANDS.CFG - SAMPLE COMMAND DEFINITIONS FOR NAGIOS 3.2.0
#
# Last Modified: 05-31-2007
#
# NOTES: This config file provides you with some example command definitions
# that you can reference in host, service, and contact definitions.
#
# You don't need to keep commands in a separate file from your other
# object definitions. This has been done just to make things easier to
# understand.
#
###############################################################################
# COMMANDS.CFG - SAMPLE COMMAND DEFINITIONS FOR NAGIOS 3.2.0
#
# Last Modified: 05-31-2007
#
# NOTES: This config file provides you with some example command definitions
# that you can reference in host, service, and contact definitions.
#
# You don't need to keep commands in a separate file from your other
# object definitions. This has been done just to make things easier to
# understand.
#
###############################################################################
################################################################################
#
# SAMPLE NOTIFICATION COMMANDS
#
# These are some example notification commands. They may or may not work on
# your system without modification. As an example, some systems will require
# you to use "/usr/bin/mailx" instead of "/usr/bin/mail" in the commands below.
#
################################################################################
# '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 $SERVICESTATE$ **" $CONTACTEMAIL$
}
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 $SERVICESTATE$ **" $CONTACTEMAIL$
}
################################################################################
#
# SAMPLE HOST CHECK COMMANDS
#
################################################################################
#
# SAMPLE HOST CHECK COMMANDS
#
################################################################################
# This command checks to see if a host is "alive" by pinging it
# The check must result in a 100% packet loss or 5 second (5000ms) round trip
# average time to produce a critical error.
# Note: Five ICMP echo packets are sent (determined by the '-p 5' argument)
# 'check-host-alive' command definition
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-host-alive
command_line $USER1$/check_ping -H $HOSTADDRESS$ -w 3000.0,80% -c 5000.0,100% -p 5
}
################################################################################
#
# SAMPLE SERVICE CHECK COMMANDS
#
# These are some example service check commands. They may or may not work on
# your system, as they must be modified for your plugins. See the HTML
# documentation on the plugins for examples of how to configure command definitions.
#
# NOTE: The following 'check_local_...' functions are designed to monitor
# various metrics on the host that Nagios is running on (i.e. this one).
################################################################################
# 'check_local_disk' command definition
define command{
command_name check_local_disk
command_line $USER1$/check_disk -w $ARG1$ -c $ARG2$ -p $ARG3$
}
define command{
command_name check_local_disk
command_line $USER1$/check_disk -w $ARG1$ -c $ARG2$ -p $ARG3$
}
# 'check_local_load' command definition
define command{
command_name check_local_load
command_line $USER1$/check_load -w $ARG1$ -c $ARG2$
}
# 'check_local_procs' command definition
define command{
command_name check_local_procs
command_line $USER1$/check_procs -w $ARG1$ -c $ARG2$ -s $ARG3$
}
# 'check_local_users' command definition
define command{
command_name check_local_users
command_line $USER1$/check_users -w $ARG1$ -c $ARG2$
}
# 'check_local_swap' command definition
define command{
command_name check_local_swap
command_line $USER1$/check_swap -w $ARG1$ -c $ARG2$
}
# 'check_local_mrtgtraf' command definition
define command{
command_name check_local_mrtgtraf
command_line $USER1$/check_mrtgtraf -F $ARG1$ -a $ARG2$ -w $ARG3$ -c $ARG4$ -e $ARG5$
}
################################################################################
# NOTE: The following 'check_...' commands are used to monitor services on
# both local and remote hosts.
################################################################################
# 'check_ftp' command definition
define command{
command_name check_ftp
command_line $USER1$/check_ftp -H $HOSTADDRESS$ $ARG1$
}
define command{
command_name check_ftp
command_line $USER1$/check_ftp -H $HOSTADDRESS$ $ARG1$
}
# 'check_hpjd' command definition
define command{
command_name check_hpjd
command_line $USER1$/check_hpjd -H $HOSTADDRESS$ $ARG1$
}
# 'check_snmp' command definition
define command{
command_name check_snmp
command_line $USER1$/check_snmp -H $HOSTADDRESS$ $ARG1$
}
# 'check_http' command definition
define command{
command_name check_http
command_line $USER1$/check_http -I $HOSTADDRESS$ $ARG1$
}
# 'check_ssh' command definition
define command{
command_name check_ssh
command_line $USER1$/check_ssh $ARG1$ $HOSTADDRESS$
}
# 'check_dhcp' command definition
define command{
command_name check_dhcp
command_line $USER1$/check_dhcp $ARG1$
}
# 'check_ping' command definition
define command{
command_name check_ping
command_line $USER1$/check_ping -H $HOSTADDRESS$ -w $ARG1$ -c $ARG2$ -p 5
}
# 'check_pop' command definition
define command{
command_name check_pop
command_line $USER1$/check_pop -H $HOSTADDRESS$ $ARG1$
}
# 'check_imap' command definition
define command{
command_name check_imap
command_line $USER1$/check_imap -H $HOSTADDRESS$ $ARG1$
}
# 'check_smtp' command definition
define command{
command_name check_smtp
command_line $USER1$/check_smtp -H $HOSTADDRESS$ $ARG1$
}
# 'check_tcp' command definition
define command{
command_name check_tcp
command_line $USER1$/check_tcp -H $HOSTADDRESS$ -p $ARG1$ $ARG2$
}
# 'check_udp' command definition
define command{
command_name check_udp
command_line $USER1$/check_udp -H $HOSTADDRESS$ -p $ARG1$ $ARG2$
}
# 'check_nt' command definition
define command{
command_name check_nt
command_line $USER1$/check_nt -H $HOSTADDRESS$ -p 12489 -v $ARG1$ $ARG2$
}
# 'check_nrpe' command definition
define command{
command_name check_nrpe
command_line $USER1$/check_nrpe -H $HOSTADDRESS$ -c $ARG1$
}
# 'check_swap' command definition
define command{
command_name check_swap
command_line $USER1$/check_swap -w $ARG1$ -c $ARG2$
}
################################################################################
#
# SAMPLE PERFORMANCE DATA COMMANDS
#
# These are sample performance data commands that can be used to send performance
# data output to two text files (one for hosts, another for services). If you
# plan on simply writing performance data out to a file, consider using the
# host_perfdata_file and service_perfdata_file options in the main config file.
#
################################################################################
# 'process-host-perfdata' command definition
define command{
command_name process-host-perfdata
command_line /usr/bin/printf "%b" "$LASTHOSTCHECK$\t$HOSTNAME$\t$HOSTSTATE$\t$HOSTATTEMPT$\t$HOSTSTATETYPE$\t$HOSTEXECUTIONTIME$\t$HOSTOUTPUT$\t$HOSTPERFDATA$\n" >> /usr/local/nagios/var/host-perfdata.out
}
# 'process-service-perfdata' command definition
define command{
command_name process-service-perfdata
# command_line /usr/bin/printf "%b" "$LASTSERVICECHECK$\t$HOSTNAME$\t$SERVICEDESC$\t$SERVICESTATE$\t$SERVICEATTEMPT$\t$SERVICESTATETYPE$\t$SERVICEEXECUTIONTIME$\t$SERVICELATENCY$\t$SERVICEOUTPUT$\t$SERVICEPERFDATA$\n" >> /usr/local/nagios/var/service-perfdata.out
command_line /usr/bin/perl /usr/local/nagios/sbin/insert.cgi
}
[root@nagios-Server objects]# /usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg 看有无报错。
[root@nagios-Server objects]# /usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg 看有无报错。
Nagios Core 3.2.3
Copyright (c) 2009-2010 Nagios Core Development Team and Community Contributors
Copyright (c) 1999-2009 Ethan Galstad
Last Modified: 10-03-2010
License: GPL
Copyright (c) 2009-2010 Nagios Core Development Team and Community Contributors
Copyright (c) 1999-2009 Ethan Galstad
Last Modified: 10-03-2010
License: GPL
Website: http://www.nagios.org
Reading configuration data...
Read main config file okay...
Processing object config file '/usr/local/nagios/etc/objects/commands.cfg'...
Processing object config file '/usr/local/nagios/etc/objects/contacts.cfg'...
Processing object config file '/usr/local/nagios/etc/objects/timeperiods.cfg'...
Processing object config file '/usr/local/nagios/etc/objects/templates.cfg'...
Processing object config file '/usr/local/nagios/etc/objects/test.cfg'...
Processing object config file '/usr/local/nagios/etc/objects/test-001.cfg'...
Read object config files okay...
Reading configuration data...
Read main config file okay...
Processing object config file '/usr/local/nagios/etc/objects/commands.cfg'...
Processing object config file '/usr/local/nagios/etc/objects/contacts.cfg'...
Processing object config file '/usr/local/nagios/etc/objects/timeperiods.cfg'...
Processing object config file '/usr/local/nagios/etc/objects/templates.cfg'...
Processing object config file '/usr/local/nagios/etc/objects/test.cfg'...
Processing object config file '/usr/local/nagios/etc/objects/test-001.cfg'...
Read object config files okay...
Running pre-flight check on configuration data...
Checking services...
Checked 16 services.
Checking hosts...
Checked 2 hosts.
Checking host groups...
Checked 0 host groups.
Checking service groups...
Checked 0 service groups.
Checking contacts...
Checked 1 contacts.
Checking contact groups...
Checked 1 contact groups.
Checking service escalations...
Checked 0 service escalations.
Checking service dependencies...
Checked 0 service dependencies.
Checking host escalations...
Checked 0 host escalations.
Checking host dependencies...
Checked 0 host dependencies.
Checking commands...
Checked 26 commands.
Checking time periods...
Checked 5 time periods.
Checking for circular paths between hosts...
Checking for circular host and service dependencies...
Checking global event handlers...
Checking obsessive compulsive processor commands...
Checking misc settings...
Checked 16 services.
Checking hosts...
Checked 2 hosts.
Checking host groups...
Checked 0 host groups.
Checking service groups...
Checked 0 service groups.
Checking contacts...
Checked 1 contacts.
Checking contact groups...
Checked 1 contact groups.
Checking service escalations...
Checked 0 service escalations.
Checking service dependencies...
Checked 0 service dependencies.
Checking host escalations...
Checked 0 host escalations.
Checking host dependencies...
Checked 0 host dependencies.
Checking commands...
Checked 26 commands.
Checking time periods...
Checked 5 time periods.
Checking for circular paths between hosts...
Checking for circular host and service dependencies...
Checking global event handlers...
Checking obsessive compulsive processor commands...
Checking misc settings...
Total Warnings: 0
Total Errors: 0
Total Errors: 0
Things look okay - No serious problems were detected during the pre-flight check
总结：在服务器端主要配置两个文件 一：/usr/local/nagios/etc/objects/ 中的 要监控的主机 二：在/usr/local/etc/objects/command.cfg 文件中，添加如nrpe， swap 命令的支持
还有一个nrpe文件的配置，后面将会讲到。
------------------------------------------------------------------------------------------------------
配置被监控端
在被监控端安装 nagios-plugin ，nrpe后 在/usr/local/nagios/etc/ 中会有nrpe.cfg 这个文件
这个文件要做好，相关配置，信息如下：
有三个地方要注意
1 "server_address=0.0.0.0"
2 "allowed_hosts=127.0.0.1,192.168.40.30,192.168.40.40,192.168.40.50"
3 "command[check_hda3]=/usr/local/nagios/libexec/check_disk -w 20% -c 10% -p /dev/hda3"
"command[check_swap]=/usr/local/nagios/libexec/check_swap -w 20% -c 10% "
后来添加的监控对象在这里要做策略
还有一个nrpe文件的配置，后面将会讲到。
------------------------------------------------------------------------------------------------------
配置被监控端
在被监控端安装 nagios-plugin ，nrpe后 在/usr/local/nagios/etc/ 中会有nrpe.cfg 这个文件
这个文件要做好，相关配置，信息如下：
有三个地方要注意
1 "server_address=0.0.0.0"
2 "allowed_hosts=127.0.0.1,192.168.40.30,192.168.40.40,192.168.40.50"
3 "command[check_hda3]=/usr/local/nagios/libexec/check_disk -w 20% -c 10% -p /dev/hda3"
"command[check_swap]=/usr/local/nagios/libexec/check_swap -w 20% -c 10% "
后来添加的监控对象在这里要做策略
[root@nagios-client01 nagios]# cat /usr/local/nagios/etc/nrpe.cfg
#############################################################################
# Sample NRPE Config File
# Written by: Ethan Galstad (nagios@nagios.org)
#
# 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.
#############################################################################
#############################################################################
# Sample NRPE Config File
# Written by: Ethan Galstad (nagios@nagios.org)
#
# 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.
# 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
# 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
# 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=0.0.0.0
# 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
# 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
# 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
# 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=127.0.0.1,192.168.40.30,192.168.40.40,192.168.40.50
# 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=0
# 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!
# 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
# 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.
# 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.
# 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
# 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.
# 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).
# 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>
#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!
# 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
command[check_hda3]=/usr/local/nagios/libexec/check_disk -w 20% -c 10% -p /dev/hda3
command[check_swap]=/usr/local/nagios/libexec/check_swap -w 20% -c 10%
# 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_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
command[check_hda3]=/usr/local/nagios/libexec/check_disk -w 20% -c 10% -p /dev/hda3
command[check_swap]=/usr/local/nagios/libexec/check_swap -w 20% -c 10%
# 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 $ARG3$
[root@nagios-client01 nagios]#
#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 $ARG3$
[root@nagios-client01 nagios]#
启动nrpe
[root@nagios-client01 nagios]# /usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg
察看：
[root@nagios-client01 nagios]# netstat -lnt
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State
tcp 0 0 0.0.0.0:5666 0.0.0.0:* LISTEN
tcp 0 0 0.0.0.0:680 0.0.0.0:* LISTEN
tcp 0 0 0.0.0.0:111 0.0.0.0:* LISTEN
tcp 0 0 127.0.0.1:631 0.0.0.0:* LISTEN
tcp 0 0 127.0.0.1:25 0.0.0.0:* LISTEN
tcp 0 0 :::22 :::* LISTEN
[root@nagios-client01 nagios]# netstat -an |grep 5666
tcp 0 0 0.0.0.0:5666 0.0.0.0:* LISTEN
[root@nagios-client01 nagios]#
-------------------------------------------------------------
[root@nagios-client01 nagios]# /usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg
察看：
[root@nagios-client01 nagios]# netstat -lnt
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State
tcp 0 0 0.0.0.0:5666 0.0.0.0:* LISTEN
tcp 0 0 0.0.0.0:680 0.0.0.0:* LISTEN
tcp 0 0 0.0.0.0:111 0.0.0.0:* LISTEN
tcp 0 0 127.0.0.1:631 0.0.0.0:* LISTEN
tcp 0 0 127.0.0.1:25 0.0.0.0:* LISTEN
tcp 0 0 :::22 :::* LISTEN
[root@nagios-client01 nagios]# netstat -an |grep 5666
tcp 0 0 0.0.0.0:5666 0.0.0.0:* LISTEN
[root@nagios-client01 nagios]#
-------------------------------------------------------------
总结：文件配置的顺序 （当然这个不是死的可以灵活来的，针对我自己而言）首先配置服务器端的
1 /usr/local/nagios/etc/objects/中创建 要检测的主机 其实就是写一个文件
2 /usr/local/nagios/etc/ 中修改 nagios.cfg ，主要做的就是 添加 要检测的主机 及第一步中设置的文件 比如 ：
1 /usr/local/nagios/etc/objects/中创建 要检测的主机 其实就是写一个文件
2 /usr/local/nagios/etc/ 中修改 nagios.cfg ，主要做的就是 添加 要检测的主机 及第一步中设置的文件 比如 ：
# You can specify individual object config files as shown below:
cfg_file=/usr/local/nagios/etc/objects/commands.cfg
cfg_file=/usr/local/nagios/etc/objects/contacts.cfg
cfg_file=/usr/local/nagios/etc/objects/timeperiods.cfg
cfg_file=/usr/local/nagios/etc/objects/templates.cfg
cfg_file=/usr/local/nagios/etc/objects/test.cfg ---------这个文件就是在第一步中建立的东西 要检测的主机
cfg_file=/usr/local/nagios/etc/objects/test-001.cfg ---------还有这个也是
# Definitions for monitoring the local (Linux) host
#cfg_file=/usr/local/nagios/etc/objects/localhost.cfg
3 /usr/local/nagios/etc/commands.cfg 文件中添加相关命令，这里我是用的nrpe，还有一个swap的命令，看如上的配置中会有。
“说明下 在服务器端 要安装的 有 nagios 主程序，nagios-plgins ，nrpe 好了继续”
4 现在配置 “被监控端” 在被监控端 要安装 nagios-plgins，nrpe 后 会有 /usr/local/nagios/ 这个目录
cfg_file=/usr/local/nagios/etc/objects/commands.cfg
cfg_file=/usr/local/nagios/etc/objects/contacts.cfg
cfg_file=/usr/local/nagios/etc/objects/timeperiods.cfg
cfg_file=/usr/local/nagios/etc/objects/templates.cfg
cfg_file=/usr/local/nagios/etc/objects/test.cfg ---------这个文件就是在第一步中建立的东西 要检测的主机
cfg_file=/usr/local/nagios/etc/objects/test-001.cfg ---------还有这个也是
# Definitions for monitoring the local (Linux) host
#cfg_file=/usr/local/nagios/etc/objects/localhost.cfg
3 /usr/local/nagios/etc/commands.cfg 文件中添加相关命令，这里我是用的nrpe，还有一个swap的命令，看如上的配置中会有。
“说明下 在服务器端 要安装的 有 nagios 主程序，nagios-plgins ，nrpe 好了继续”
4 现在配置 “被监控端” 在被监控端 要安装 nagios-plgins，nrpe 后 会有 /usr/local/nagios/ 这个目录
定义nrpe.cfg
在被监控端 要配置好 在监控端 要监控的东西，比如我们添加了对 swap ，hda1 ,hda3
在nrpe.cfg中要定义好（/usr/local/nagios/etc/nrpe.cfg）
在这个文件中要修改的地方有3个 一是 “server_address” 二是 “allowed_hosts” 第三 后添加的 监控对象 看如上的配置中会有。
“command[check_hda3]=/usr/local/nagios/libexec/check_disk -w 20% -c 10% -p /dev/hda3”
“command[check_swap]=/usr/local/nagios/libexec/check_swap -w 20% -c 10% ”
修改完后 重启下nrpe
/usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg
在被监控端 要配置好 在监控端 要监控的东西，比如我们添加了对 swap ，hda1 ,hda3
在nrpe.cfg中要定义好（/usr/local/nagios/etc/nrpe.cfg）
在这个文件中要修改的地方有3个 一是 “server_address” 二是 “allowed_hosts” 第三 后添加的 监控对象 看如上的配置中会有。
“command[check_hda3]=/usr/local/nagios/libexec/check_disk -w 20% -c 10% -p /dev/hda3”
“command[check_swap]=/usr/local/nagios/libexec/check_swap -w 20% -c 10% ”
修改完后 重启下nrpe
/usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg
察看下状态
[root@nagios-client01 etc]# netstat -lnt
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State
tcp 0 0 0.0.0.0:5666 0.0.0.0:* LISTEN
tcp 0 0 0.0.0.0:680 0.0.0.0:* LISTEN
tcp 0 0 0.0.0.0:111 0.0.0.0:* LISTEN
tcp 0 0 127.0.0.1:631 0.0.0.0:* LISTEN
tcp 0 0 127.0.0.1:25 0.0.0.0:* LISTEN
tcp 0 0 :::22 :::* LISTEN
[root@nagios-client01 etc]#
[root@nagios-client01 etc]# netstat -lnt
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State
tcp 0 0 0.0.0.0:5666 0.0.0.0:* LISTEN
tcp 0 0 0.0.0.0:680 0.0.0.0:* LISTEN
tcp 0 0 0.0.0.0:111 0.0.0.0:* LISTEN
tcp 0 0 127.0.0.1:631 0.0.0.0:* LISTEN
tcp 0 0 127.0.0.1:25 0.0.0.0:* LISTEN
tcp 0 0 :::22 :::* LISTEN
[root@nagios-client01 etc]#
