Nagios添加服务监控
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监控Web服务:
在window server2003上安装IIS
然后我们在nagios上做配置
命令配置里面默认有http
define command{
command_name check_http
command_line $USER1$/check_http -I $HOSTADDRESS$ $ARG1$
}
配置主机和服务，主机之前已经配置好了，所以我们添加一个服务就可以
[nagios@node4 ~]$ cd/usr/local/nagios/etc/objects/
[nagios@node4objects]$ vim windows.cfg
define service{
use generic-service
host_name winserver
service_description Web_server
check_command check_http
}
重启nagios服务
[root@node4 objects]#service nagios restart
Running configurationcheck...done.
Stopping nagios:done.
Starting nagios:done.
然后现在我们在nagios管理界面上看到新加入的web服务了
监控MySQL服务
在node4上安装mysql-server
# yum install mysql-server -y
启动mysqld服务
# service mysqldstart
Initializing MySQLdatabase: Installing MySQL systemtables...
OK
Filling helptables...
OK
To start mysqld atboot time you have to copy
support-files/mysql.serverto the right place for your system
PLEASE REMEMBER TOSET A PASSWORD FOR THE MySQL root USER !
To do so, start theserver, then issue the following commands:
/usr/bin/mysqladmin-u root password 'new-password'
/usr/bin/mysqladmin-u root -h node4.example.com password 'new-password'
Alternatively you canrun:
/usr/bin/mysql_secure_installation
which will also giveyou the option of removing the test
databases andanonymous user created by default. Thisis
strongly recommendedfor production servers.
See the manual formore instructions.
You can start theMySQL daemon with:
cd /usr ;/usr/bin/mysqld_safe &
You can test theMySQL daemon with mysql-test-run.pl
cd /usr/mysql-test ;perl mysql-test-run.pl
Please report anyproblems with the /usr/bin/mysqlbug script!
[ OK ]
Starting mysqld: [ OK ]
# chkconfig mysqld on
然后给mysql设置管理员密码
# mysqladmin -u root -p password wiker #修改密码为wiker
Enter password: #直接回车，默认的root密码是空
[root@node4 ~]# mysql -u root -pwiker #测试下登陆
Welcome to the MySQLmonitor. Commands end with ; or \g.
Your MySQL connectionid is 11
Server version:5.1.52 Source distribution
Copyright (c) 2000,2010, Oracle and/or its affiliates. All rights reserved.
This software comeswith ABSOLUTELY NO WARRANTY. This is free software,
and you are welcometo modify and redistribute it under the GPL v2 license
Type 'help;' or '\h'for help. Type '\c' to clear the current input statement.
mysql> showdatabases;
+--------------------+
| Database |
+--------------------+
| information_schema|
| mysql |
| test |
+--------------------+
3 rows in set (0.01sec)
但是我们发现我们没有check_mysql这个插件：
[root@node4 libexec]#pwd
/usr/local/nagios/libexec
[root@node4 libexec]#ls
check_apt check_imap check_pop
check_breeze check_ircd check_procs
check_by_ssh check_load check_real
check_clamd check_log check_rpc
check_cluster check_mailq check_sensors
check_dhcp check_mrtg check_smtp
check_dig check_mrtgtraf check_ssh
check_disk check_nagios check_swap
check_disk_smb check_nntp check_tcp
check_DNS check_nrpe check_time
check_dummy check_nt check_udp
check_file_age check_ntp check_ups
check_flexlm check_ntp_peer check_users
check_ftp check_ntp_time check_wave
check_http check_nwstat negate
check_icmp check_oracle process_perfdata.pl
check_ide_smart check_overcr urlize
check_ifoperstatus check_ping utils.pm
check_ifstatus check_pnp_rrds.pl utils.sh
因为check_mysql这个插件需要依赖mysql-devel包才能生效，所以我们需要安装这个包，然后重新编译nagios的插件
# yum installmysql-devel -y
[root@node4nagios-plugins-1.5]# ./configure--with-nagios-user=nagios --with-nagios-group=nagios
[root@node4nagios-plugins-1.5]# make ; make install
[root@node4nagios-plugins-1.5]# cd /usr/local/nagios/libexec/
[root@node4 libexec]#ls
check_apt check_load check_real
check_breeze check_log check_rpc
check_by_ssh check_mailq check_sensors
check_clamd check_mrtg check_simap
check_cluster check_mrtgtraf check_smtp
check_dhcp check_mysql check_spop
check_dig check_mysql_query check_ssh
check_disk check_nagios check_ssmtp
check_disk_smb check_nntp check_swap
check_dns check_nntps check_tcp
check_dummy check_nrpe check_time
check_file_age check_nt check_udp
check_flexlm check_ntp check_ups
check_ftp check_ntp_peer check_users
check_http check_ntp_time check_wave
check_icmp check_nwstat negate
check_ide_smart check_oracle process_perfdata.pl
check_ifoperstatus check_overcr urlize
check_ifstatus check_ping utils.pm
check_imap check_pnp_rrds.pl utils.sh
check_ircd check_pop
check_jabber check_procs
首先我们定义commands
[root@node4 libexec]#cd /usr/local/nagios/etc/objects/
[root@node4 objects]#vim commands.cfg
define command {
command_name check_mysql
command_line $USER1$/check_mysql -H $HOSTADDRESS$ -u$ARG1$ -p $ARG2$
}
然后定义主机上的服务
[root@node4 objects]#vim localhost.cfg
define service{
use local-service,services-pnp
host_name localhost
service_description Mysql-server
check_command check_mysql!root!wiker
}
然后检查语法
[root@node4 objects]#/usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg
……………………………………..
Total Warnings: 0
Total Errors: 0
然后重启nagios服务
[root@node4 objects]#service nagios restart
Running configurationcheck...done.
Stopping nagios:done.
Starting nagios:done.
然后进入nagios界面，你就会看到我们加入的mysql服务
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