nagios完全安裝文件 (CentOS)
第一部分安裝
Nagios的所有外掛的地址：http://www.nagios.org/download/addons
1：安裝LAMP環境
# yum -y install php httpd gcc glibc glibc-common gd gd-devel
2:建立nagios帳號，請牢記設定的密碼
# /usr/sbin/useradd nagios && passwd nagios
建立一個使用者組名為nagios用於從web介面執行外部命令。將nagios使用者和apache使用者都加入到這個組中。
# /usr/sbin/groupadd nagios
# /usr/sbin/usermod -g nagios nagios
# /usr/sbin/usermod -g nagios apache
3:編譯與安裝nagios
進入到nagios安裝包所在的資料夾下
# tar -zxvf nagios- 3.4.1.tar.gz
# cd nagios
# ./configure --with-command-group=nagios --prefix=/usr/local/nagios
# make all
# make install
# make install-init
# make install-config
# make install-commandmode
# make install-webconf
建立一個nagiosadmin的使用者，用於nagios的Web介面登入。請牢記你設定的密碼。
# htpasswd -c /usr/local/nagios/etc/htpasswd.users nagiosadmin
驗證是否正確安裝，進入到安裝路徑（此處是/usr/local/nagios),看是否存在etc bin sbin share var這五個目錄，如果存在，則說明nagios正確的安裝到系統
4:編譯與安裝nagios-plugins
進入到nagios-plugins安裝包所在的資料夾下
# tar -zxvf nagios-plugins-1.4.16.tar.gz
# cd nagios-plugins-1.4.16
# ./configure--with-nagios-user=nagios --with-nagios-group=nagios --prefix=/usr/local/nagios
驗證：ls /usr/local/nagios/libexec會顯示安裝的外掛檔案，即所有的外掛都安裝在libexec這個目錄下
5：啟動服務
重啟apache服務讓設定生效
# service httpd restart
驗證nagios的樣例配置檔案
# /usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg
如果沒有報錯，啟動nagios服務
# service nagios start
6：測試
登入http://IP地址/nagios/,輸入使用者名稱和密碼,則nagios安裝成功。
第二部分監控linux主機
一.被監控機上安裝NRPE
1.安裝客戶端nagios外掛
進入到nagios-plugins安裝包所在的資料夾下
# tar -zxvf nagios-plugins-1.4.16.tar.gz
# cd nagios-plugins-1.4.16
# ./configure --prefix=/usr/local/nagios
# make && make install
# useradd nagios
# chown nagios.nagios /usr/local/nagios
# chown -R nagios.nagios /usr/local/nagios/libexec
2.給客戶端安裝NRPE
首先檢查openssl是否存在，否則要安裝openssl
# rpm –qa | grep openssl
openssl-devel-1.0.0-20.el6_2.5.x86_64
openssl-1.0.0-20.el6_2.5.x86_64
進入到nrpe安裝包所在的資料夾下
# tar -zxvf nrpe-2.13.tar.gz
# cd nrpe-2.13
# ./configure --prefix=/usr/local/nagios --enable-ssl --with-ssl-lib=/usr/lib/
# make all
# make install-plugin
# make install-daemon
返回當前NRPE的版本
# /usr/local/nagios/libexec/check_nrpe -H localhost
啟動NRPE
# /usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg -d
3.配置NRPE客戶端
新增nrpe伺服器地址，允許監控伺服器對其讀取資訊
# vi /usr/local/nagios/etc/nrpe.cfg
在allowed_hosts中新增允許的伺服器，例如：
allowed_hosts=127.0.0.1,10.126.53.65,172.18.0.236
新增command欄位來新增需要監控的服務，例如：
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_disk]=/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_ping]=/usr/local/nagios/libexec/check_ping -H 172.18.0.237 -w 3,2% -c 10,6% -p 30
重啟nrpe
# killall -9 nrpe
# /usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg -d
二.監控機上安裝NRPE
1.安裝nrpe
首先檢查openssl是否存在，否則要安裝openssl
# rpm –qa | grep openssl
openssl-devel-1.0.0-20.el6_2.5.x86_64
openssl-1.0.0-20.el6_2.5.x86_64
進入到nrpe安裝包所在的資料夾下
# tar -zxvf nrpe-2.13.tar.gz
# cd nrpe-2.13
# ./configure --prefix=/usr/local/nagios --enable-ssl --with-ssl-lib=/usr/lib/
# make all
# make install-plugin
# make install-daemon
# make install-daemon-config
返回當前NRPE的版本
# /usr/local/nagios/libexec/check_nrpe -H localhost
2.commands.cfg中定義外部構件nrpe
# vi /usr/local/nagios/etc/objects/commands.cfg
新增check_nrpe
# 'check_nrpe' command definition
define command{
command_name check_nrpe
command_line$USER1$/check_nrpe -H $HOSTADDRESS$ -c $ARG1$
}
3.配置要監控的Linux主機
# vi /usr/local/nagios/etc/nagios.cfg
修改如下：
cfg_file=/usr/local/nagios/etc/objects/localhost.cfg
cfg_dir=/usr/local/nagios/etc/objects/servers
# mkdir /usr/local/nagios/etc/objects/servers/
#chown -R nagios.nagios /usr/local/nagios/etc/objects/servers/
4.配置cgi.cfg檔案
# vi /usr/local/nagios/etc/cgi.cfg
修改如下：
use_authentication=1
注意：修改檔案許可權
# chmod 777 /usr/local/nagios/var/rw/
# chmod 777 / usr/local/nagios/var/rw/nagios.cmd
5.新建host_service_group.cfg，設定其內容
# vi /usr/local/nagios/etc/objects/servers/host_service_group.cfg
其檔案內容如下：
define servicegroup{
servicegroup_name host_perfdata
alias host_perfdata
}
define hostgroup{
hostgroup_name host_perfdata
alias host_perfdata
}
6.新建172.18.0.237.cfg，設定監控內容
# vi /usr/local/nagios/etc/objects/servers/172.18.0.237.cfg
define host{
uselinux-server
host_name 172.18.0.237
host_groupshost_perfdata
alias172.18.0.237
address 172.18.0.237
}
define service{
usegeneric-service
host_name 172.18.0.237
service_groupshost_perfdata
service_descriptioncheck_cpu_load
check_command check_nrpe!check_load
notifications_enabled1
}
define service{
use generic-service
host_name 172.18.0.237
service_groupshost_perfdata
service_descriptioncheck_total_process
check_command check_nrpe!check_total_procs
notifications_enabled1
}
define service {
usegeneric-service
host_name 172.18.0.237
service_groupshost_perfdata
service_descriptionPING
check_commandcheck_ping!200.0,20%!500.0,60%
notifications_enabled1
}
驗證nagios的配置檔案是否正確
# /usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg
如果沒有報錯，重新載入nagios服務
# service nagios reload
三.Nagios報警設定
3.1網頁報警
1.修改cgi.cfg配置檔案
# vi /usr/local/nagios/etc/cgi.cfg
去掉下面幾行註釋
host_unreachable_sound=hostdown.wav
host_down_sound=hostdown.wav
service_critical_sound=critical.wav
service_warning_sound=warning.wav
service_unknown_sound=warning.wav
normal_sound=noproblem.wav
2.在/usr/local/nagios/share/media/下將聲音檔案新增進去
3.2通過sendEmail傳送報警
1.安裝sendEmail
進入到sendEmail安裝包所在的資料夾下
# tar -zxvf sendEmail-v1.56.tar.gz
# cd sendEmail-v1.56
# cp sendEmail /usr/local/bin/
# chmod 755 /usr/local/bin/sendEmail
2.測試
使用系統自帶的sendmail測試
# cd (回到根目錄)
# mail -s “I am test”[email protected]< install.log
“I am test”是郵件的主題，在[email protected]中如果能收到郵件，則說明設定成功。
3.修改commands.cfg檔案(其實這一步，可以省略，因為在安裝nagios的時候，已經預設存在)
# /usr/local/nagios/etc/objects/commands.cfg
內容如下：
# '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 $SERVICESTATE$ **" $CONTACTEMAIL$
}
4.編輯contacts.cfg檔案
# /usr/local/nagios/etc/objects/contacts.cfg
內容如下：
define contact{
contact_name nagiosadmin; Short name of user
use generic-contact; Inherit default values from generic-contact template (defined above)
alias Nagios Admin ; Full name of user
email [email protected] ; <<***** CHANGE THIS TO YOUR EMAIL ADDRESS ******
service_notification_commands notify-service-by-email
host_notification_commandsnotify-host-by-email
}
5.重啟nagios服務
# /etc/init.d/nagios reload
第三部分監控Windows主機
一．被監控機（Windows）上安裝NSClient++客戶端
下載地址：http://nsclient.org/nscp/downloads
目前最新版本：0.4.1.62，根據需要下載32位或64位機程式。
.zip格式和.msi格式大同小異，在次處我使用.msi格式，並以32位機為例。
雙擊下載好的程式，開始安裝
選擇：Typical
勾選：Allow all users to write config file
在Allowed hosts中填寫監控主機的IP，NSClient password中本應該填寫監控機和
被監控機之間的通訊密碼，為了方便，在次不進行設定，勾選Modules to load
下面的所有選項。點選Next
點選Install完成安裝。
進入到服務中，找到NSClient++(Win32)，雙擊它，選擇登入，再勾選允許服務與
桌面互動，最後重啟服務。
二．監控機（Linux）新增監控項
在/usr/local/nagios/etc/objects/servers/目錄下新增一臺Windows主機
# vi /usr/local/nagios/etc/objects/servers/10.126.53.54.cfg
其檔案內容如下：
define host{
use linux-server
host_name10.126.53.54
alias10.126.53.54
host_groupshost_perfdata
address 10.126.53.54
}
define service{
use generic-service
host_name 10.126.53.54
service_groups host_perfdata
service_description check_ping
check_command check_ping!100.0,20%!200.0,50%
notifications_enabled 1
}
define service{
usegeneric-service
host_name 10.126.53.54
service_groups host_perfdata
service_description check_memory_useage
check_command check_nt!MEMUSE!-w 80 -c 90
notifications_enabled 1
}
define service{
use generic-service
host_name 10.126.53.54
service_groups host_perfdata
service_description check_cpu_load
check_command check_nt!CPULOAD!-l 5,70,80
notifications_enabled 1
}
define service{
usegeneric-service
host_name 10.126.53.54
service_groups host_perfdata
service_description check_C:\_space
check_command check_nt!USEDDISKSPACE!-l C!-w 80 -c 90
notifications_enabled 1
}
define service{
use generic-service
host_name 10.126.53.54
service_groups host_perfdata
service_description check_E:\_space
check_command check_nt!USEDDISKSPACE!-l E!-w 80 -c 90
notifications_enabled 1
}
驗證nagios的配置檔案是否正確
# /usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg
如果沒有報錯，重新載入nagios服務
# service nagios reload
可以進行測試：
#/usr/local/nagios/libexec/check_nt -H 10.126.53.54 -v CPULOAD -p 12489 -l 5,70,80
#/usr/local/nagios/libexec/check_nt -H 10.126.53.54-v MEMUSE -p 12489
#/usr/local/nagios/libexec/check_nt -H 10.126.53.54 -v USEDDISKSPACE -p 12489 -l C
#/usr/local/nagios/libexec/check_nt -H 10.126.53.54 -v USEDDISKSPACE -p 12489 -l E
第四部分nagvis外掛的安裝
Nagvis官方網站：http://www.nagvis.org/
Nagvis下載：http://jaist.dl.sourceforge.net/project/nagvis/NagVis 1.7/nagvis-1.7.3.tar.gz
ndoutils下載：http://sourceforge.net/projects/nagios/files/ndoutils-1.x/
一．安裝ndoutils
檢視是否安裝mysql-devel(它是用來編譯ndoutils)
# rpm -qa | grep mysql
如果沒有安裝mysql-devel，則用yum安裝
# yum -y install mysql-devel
為ndoutils建立資料庫
#mysql -u root -p
Enter password:
mysql> create database ndodb;
mysql>grant all privileges on ndodb.* to [email protected] identified by 'ndouser';
mysql>grant all privileges on ndodb.* to [email protected]'%' identified by 'ndouser';
mysql>flush privileges;
mysql>quit
關聯mysql標頭檔案和庫
# ln -s /usr/local/mysql/include/* /usr/include/
# ln -s /usr/local/mysql/lib/* /usr/lib/
注意：/usr/local/mysql是MySQL的安裝目錄
開始安裝ndoutils
# tar zxvf ndoutils-1.5.2.tar.gz
# cd ndoutils-1.5.2
#./configure --prefix=/usr/local/nagios --enable-mysql --enable-ssl --with-ssl-lib=/usr/lib --with-ndo2db-user=nagios --with-ndo2db-group=nagios --with-mysql=/usr/local/mysql --with-mysql-lib=/usr/local/mysql/lib LDFLAGS=-L/usr/lib
注意：/usr/local/mysql是MySQL的安裝目錄
#make
#make install//此命令可不用執行
# cd db/
# ./installdb -u ndouser -p ndouser -h localhost -d ndodb
# cd ../src/
# cp file2sock log2ndo ndo2db-2x ndo2db-3x ndomod-2x.o ndomod-3x.o/usr/local/nagios/bin/
# cd ../config
# cp ndo2db.cfg-sample ndomod.cfg-sample /usr/local/nagios/etc/
# mv /usr/local/nagios/etc/ndo2db.cfg-sample /usr/local/nagios/etc/ndo2db.cfg
# mv /usr/local/nagios/etc/ndomod.cfg-sample /usr/local/nagios/etc/ndomod.cfg
# chmod 644 /usr/local/nagios/etc/ndo*
# vi /usr/local/nagios/etc/nagios.cfg
修改內容如下：
check_external_commands=1（大概在146行）
command_check_interval=-1（大概在164行）
event_broker_options=-1（大概在222行）
在249行下面新增一行：
broker_module=/usr/local/nagios/bin/ndomod-3x.o config_file=/usr/local /nagios/etc/ndomod.cfg
process_performance_data=1（大概在834行）
# vi /usr/local/nagios/etc/ndomod.cfg
將其修改為：
# cat /usr/local/nagios/etc/ndomod.cfg |grep -v '^#'|sed /^$/d
# vi /usr/local/nagios/etc/ndo2db.cfg
將其修改為：
# cat /usr/local/nagios/etc/ndo2db.cfg |grep -v '^#'|sed /^$/d
啟動ndo2db守護程序
# /usr/local/nagios/bin/ndo2db-3x -c /usr/local/nagios/etc/ndo2db.cfg
二．安裝Nagvis
安裝支援庫graphviz
# cp /etc/yum.repos.d/rpmforge.repo /etc/yum.repos.d/rpmforge.repo.bak
# vi /etc/yum.repos.d/rpmforge.repo
將下面的內容加入到最後面：
[graphviz-stable]
name=Graphviz - RHEL $releasever - $basearch
baseurl=http://www.graphviz.org/pub/graphviz/stable/redhat/el$releasever/$basearch/os/
enabled=1
gpgcheck=0
skip_if_unavailable=1
[graphviz-stable-source]
name=Graphviz - RHEL $releasever - Source
baseurl=http://www.graphviz.org/pub/graphviz/stable/SRPMS/
enabled=0
gpgcheck=0
skip_if_unavailable=1
[graphviz-stable-debuginfo]
name=Graphviz - RHEL - Debug
baseurl=http://www.graphviz.org/pub/graphviz/stable/redhat/el$releasever/$basearch/debug/
enabled=0
gpgcheck=0
skip_if_unavailable=1
[graphviz-snapshot]
name=Graphviz - RHEL $releasever - $basearch
baseurl=http://www.graphviz.org/pub/graphviz/development/redhat/el$releasever/$basearch/os/
enabled=0
gpgcheck=0
skip_if_unavailable=1
[graphviz-snapshot-source]
name=Graphviz - RHEL $releasever - Source
baseurl=http://www.graphviz.org/pub/graphviz/development/SRPMS/
enabled=0
gpgcheck=0
skip_if_unavailable=1
[graphviz-snapshot-debuginfo]
name=Graphviz - RHEL - Debug
baseurl=http://www.graphviz.org/pub/graphviz/development/redhat/el$releasever/$basearch/debug/
enabled=0
gpgcheck=0
skip_if_unavailable=1
# yum -y install graphviz*
# tar zxvf nagvis-1.7.3.tar.gz
# cd nagvis-1.7.3
# bash install.sh
詳細請參考官方文件：http://docs.nagvis.org/1.7/en_US/index.html
轉載於:https://blog.51cto.com/linux1314/1310082