构建监控、日志分析服务器
环境:RHEL5.4 x32公司架构:Lvs+Nginx+Php(fastcgi)+Mysql
分布:
server1: lvs+nginx+php(fastcgi)
server2: lvs+nginx+php(fastcgi)
server3: Mysql
server4: Nagios+Cacti+日志分析软件(暂未确定)
具体实施的情况如下:
1、解决mail邮件的问题。
2、安装nagios
3、安装cacti
4、安装日志分析
5、验收
备注:事先请yum install gd gd-devel freetype freetype-devel libpng libpng-devel libjpeg-devel libjpeg
否则安装完后,发现map页面无法打开!
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Nagios安装完后map不显示这个问题,我看大家有人问到,那我上网搜了下资料,供大家参考!初学nagios的时候,安装完nagios,各方面都正常但是就是在点击map的时候,显示无法连接端口,奇怪了,其他地方都正常显示的啊,为什么独独map不显示呢。查了下资料,说map需要statusmap.cgi文件的支持。然后在sbin目录中找。果然找不到这个配置文件。外事找google,找到说这个文件需要gd库的支持,一查系统果然没装这个找到光盘安装gd,gd-devel。再次./configure ; make ; mv statusmap.cgi /path/to/nagios/sbin 刷新,哈。出来了通过文章的介绍,想必大家都找到Nagios安装完后map不显示问题的所在,就用我教大家的方法来操作。
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一、解决mail邮件的问题:
a、申请专用的邮箱(postfixlinux_admin@163.com)
b、手机接收邮箱 (139237106xx@139.com) 并配置手机邮箱送达通知,速度非常快。
c、使用msmtp来替代系统自带的mail,以达到未来系统出现故障时,shell脚本可以通过mail发报警给管理员。
#wget http://nchc.dl.sourceforge.net/s ... smtp-1.4.17.tar.bz2
# tar -xjf msmtp-1.4.17.tar.bz2
# cd msmtp-1.4.17
# ./configure --prefix=/usr/local/msmtp
Install prefix ......... : /usr/local/msmtp
TLS/SSL support ........ : yes (Library: OpenSSL)
GNU SASL support ....... : no
GNU Libidn support ..... : yes
NLS support ............ : yes
GNOME Keyring support .. : no
MacOS X Keychain support : no
# make && make install
# mkdir etc
# vim etc/msmtprc
account default
host smtp.163.com
port 25
from postfixlinux_admin@163.com
auth login
tls off
user postfixlinux_admin@163.com
password youpassword
logfile /var/log/msmtp_log
#设置默认的mail程序
# vim /etc/mail.rc
set sendmail="/usr/local/msmtp/bin/msmtp"
#发一封邮件给自己
# echo "this is a test mail " | mail -s "test mail" baoch8@163.com
经过本人确认,本人收到了这封测试邮件!第一步终于解决了!
二、安装nagios
我在www.nagios.org官网下载了nagios-3.2.3.tar与nagios-plugins-1.4.15.tar,目前 这个版本是需要使用php的,不像以前仅使用apache即可。
1、安装apache+php(为了方便起见,使用yum来安装)
# yum install httpd php php-devel httpd-devel -y
2、安装nagios
# useradd -m nagios -s /sbin/nologin
# passwd nagios
Changing password for user nagios.
New UNIX password:
Retype new UNIX password:
passwd: all authentication tokens updated successfully.
#建立nagcmd用于从web接口执行外部命令,将apache,nagios加到这个组
# groupadd nagcmd
# usermod -G nagcmd apache
# usermod -G nagcmd nagios
# ./configure --prefix=/usr/local/nagios \
> --with-nagios-user=nagios --with-nagios-group=nagios \
> --with-command-group=nagcmd
General Options:
-------------------------
Nagios executable:nagios
Nagios user/group:nagios,nagios
Command user/group:nagios,nagcmd
Embedded Perl:no
Event Broker:yes
Install ${prefix}:/usr/local/nagios
Lock file:${prefix}/var/nagios.lock
Check result directory:${prefix}/var/spool/checkresults
Init directory:/etc/rc.d/init.d
Apache conf.d directory:/etc/httpd/conf.d
Mail program:/bin/mail
Host OS:linux-gnu
Web Interface Options:
------------------------
HTML URL:http://localhost/nagios/
CGI URL:http://localhost/nagios/cgi-bin/
Traceroute (used by WAP):/bin/traceroute
# make all
# make install
# make install-init
# make install-commandmode
# make install-config
#编辑相应联系文件
# vim /usr/local/nagios/etc/objects/contacts.cfg
email postfixlinux_admin@163.com ; <<***** CHANGE THIS TO
YOUR EMAIL ADDRESS ******
#配置web接口
# make install-webconf
/usr/bin/install -c -m 644 sample-config/httpd.conf /etc/httpd/conf.d/nagios.conf
*** Nagios/Apache conf file installed ***
这一步很重要,它把nagios的httpd.conf配置文件复制到了apache下,这样我们就可以直接使用http://ip/nagios进行登录查看了!
#添加web接口的管理用户
# htpasswd -c /usr/local/nagios/etc/htpasswd.users nagiosadmin
New password:
Re-type new password:
Adding password for user nagiosadmin
#安装nagios-plug
# tar -xzf nagios-plugins-1.4.15.tar.gz
# cd nagios-plugins-1.4.15
# ./configure --prefix=/usr/local/nagios/
# make && make install
#设置自动启动服务
# chkconfig --add nagios
# chkconfig nagios on
#检查下配置文件(这个文件是默认的,我没有修改)
# /usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg
Total Warnings: 0
Total Errors: 0
#上面的文件检查没有问题,就可以重启服务了
# service nagios start
Starting nagios:This account is currently not available.
done.
#Starting nagios:This account is currently not available.
解决方法:把/etc/passwd中nagios的shell设置成/bin/bash
#再重启没有发现错误
# service nagios restart
Running configuration check...done.
Stopping nagios: done.
Starting nagios: done.
#关于SELINUX,为什么要设置这两条?
# chcon -R -t httpd_sys_content_t /usr/local/nagios/sbin
# chcon -R -t httpd_sys_content_t /usr/local/nagios/share/
原因:这个是
# cat /etc/httpd/conf.d/nagios.conf
中定义了CGI的路径,不得将其标签进行修改!当然你也可以使用setenforce 0
# SAMPLE CONFIG SNIPPETS FOR APACHE WEB SERVER
# Last Modified: 11-26-2005
#
# This file contains examples of entries that need
# to be incorporated into your Apache web server
# configuration file.Customize the paths, etc. as
# needed to fit your system.
ScriptAlias /nagios/cgi-bin "/usr/local/nagios/sbin"
<Directory "/usr/local/nagios/sbin">
#SSLRequireSSL
Options ExecCGI
AllowOverride None
Order allow,deny
Allow from all
#Order deny,allow
#Deny from all
#Allow from 127.0.0.1
AuthName "Nagios Access"
AuthType Basic
AuthUserFile /usr/local/nagios/etc/htpasswd.users
Require valid-user
</Directory>
Alias /nagios "/usr/local/nagios/share"
<Directory "/usr/local/nagios/share">
#SSLRequireSSL
Options None
AllowOverride None
Order allow,deny
Allow from all
#Order deny,allow
#Deny from all
#Allow from 127.0.0.1
AuthName "Nagios Access"
AuthType Basic
AuthUserFile /usr/local/nagios/etc/htpasswd.users
Require valid-user
</Directory>
现在可以登录nagios进行设置了。
实施中经历了:
1、安装nrpe客户端
2、Nagios的个人配置思路
3、 监控81,82,22的应用
4、 安装nagios后,发现没有check_mysql
这是什么东东啊 写的真的很不错 所有刻骨铭心的爱都灵魂游离于床上的瞬间! 帮你顶下哈!! 我真想亲口管你爷爷叫声:爹! 我真想亲口管你爷爷叫声:爹!
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