nagios:environment
目次
nagios構築
サーバ）インストール
rpmforge リポジトリを追加
# wget http://packages.sw.be/rpmforge-release/rpmforge-release-0.5.1-1.el5.rf.x86_64.rpm # rpm -Uhv rpmforge-release-*.rpm # yum --enablerepo=rpmforge install nagios nagios-plugins nagios-plugins-setuid # yum -y --enablerepo=rpmforge install nagios-plugins-nrpe
サーバ初期設定
# vi /etc/nagios/nagios.cfg
-) #cfg_dir=/etc/nagios/servers +) cfg_dir=/etc/nagios/servers
# mkdir /etc/nagios/servers # chown nagios. /etc/nagios/servers
apache設定ファイル
とりあえずつながる設定なので、本番運用禁止！！
# vi /etc/httpd/conf.d/nagios.conf
BASIC認証関連の4行をコメントアウトして、IP制限の3行を追加
# AuthName "Nagios Access" # AuthType Basic # AuthUserFile /etc/nagios/htpasswd.users # Require valid-user Order deny,allow Deny from all Allow from 192.168.0.0/24
BASIC認証の場合は、以下実行
# htpasswd -c /etc/nagios/htpasswd.users nagiosadmin New password:***** Re-type new password:***** Adding password for user nagiosadmin
設定導入（=Apache再起動）
# /etc/rc.d/init.d/httpd restart
iptalesを使用する場合は、/etc/sysconfig/iptablesに以下を追記する。
-A INPUT -m state --state NEW -m tcp -p tcp --dport 5666 -j ACCEPT -A INPUT -m state --state NEW -m udp -p udp --dport 5666 -j ACCEPT
CentOS/SELINUX
動作確認
サーバ）監視ホスト追加
# vi /etc/nagios/servers/web01.cfg
define host{
use linux-server
host_name web01
alias web01
address 192.168.0.223
}
define service{
use generic-service
host_name web01
service_description PING
check_command check_ping!100.0,20%!500.0,60%
}
サーバ）通知先追加
# vi contacts.cfg
# 'nagios-admin' contact definition
define contact{
contact_name nagios-admin
alias Nagios Admin
service_notification_period 24x7
host_notification_period 24x7
service_notification_options w,u,c,r ; warning, unknown, critical, recover
host_notification_options d,u,r ; down, unknown, recover
service_notification_commands notify_by_irc
host_notification_commands host_notify_to_irc
email error@example.com
}
define contact{
contact_name user
alias user
service_notification_options u,c,r ; unknown, critical, recover
host_notification_options d,u,r ; down, unknown, recover
email error@example.com
}
# 'admins' contactgroup definition
define contactgroup{
contactgroup_name admins
alias Nagios Administrators
members nagios-admin
}
define contactgroup{
contactgroup_name users
alias Users
members nagios-admin,user
}
# commands.cfg
#
define command{
command_name notify_by_irc
command_line /toirc "$NOTIFICATIONTYPE$ - $HOSTALIAS$ is $SERVICEOUTPUT$"
}
#
define command{
command_name host_notify_to_irc
command_line /toirc "Host $HOSTSTATE$ - $HOSTNAME$!"
}
ホスト）インストール・監視設定
# yum -y install --enablerepo=remi,epel,rpmforge nagios-plugins-users.x86_64 # yum -y install --enablerepo=remi,epel,rpmforge nagios-plugins-load.x86_64 # yum -y install --enablerepo=remi,epel,rpmforge nagios-plugins-disk.x86_64 # yum -y install --enablerepo=remi,epel,rpmforge nagios-plugins-procs.x86_64
# vi /etc/nagios/objects/commands.cfg
define command{
command_name check_nrpe
command_line $USER1$/check_nrpe -H $HOSTADDRESS$ -c $ARG1$
}
# vi /etc/nagios/servers/web01.cfg
define service{
use generic-service
host_name web01
service_description Current Users
check_command check_nrpe!check_users
}
define service{
use generic-service
host_name web01
service_description Current Load
check_command check_nrpe!check_load
}
define service{
use generic-service
host_name web01
service_description Root Partition
check_command check_nrpe!check_disk
}
define service{
use generic-service
host_name web01
service_description Total Processes
check_command check_nrpe!check_procs
}
# vi /etc/nagios/nrpe.cfg
command[check_disk]=/usr/lib64/nagios/plugins/check_disk -w 20% -c 10% -p / command[check_procs]=/usr/lib64/nagios/plugins/check_procs -w 250 -c 400 -s RSZDT
参考
nagios/environment.txt · 最終更新: 2016/03/15 05:22 by clownclown