安裝Munin監控替代Cacti | Alex's blog

安裝Munin監控替代Cacti

FreeBSD && Linux , VPS && hosting
Add comments

這次添加第二臺服務器的時候是在受不了Cacti了，全都換成了Munin監控。

在CentOS5上安裝的話，Munin并沒有在官方的yum源中，需要自己手工添加yum源：

#rpm -Uvh http://download.fedora.redhat.com/pub/epel/5/i386/epel-release-5-4.noarch.rpm

#wget http://download.fedoraproject.org/pub/epel/5/i386/epel-release-5-4.noarch.rpm

#rpm -Uvh epel-release-5-4.noarch.rpm

centos6的話可能需要安裝epel6.5的版本：

wget http://download.fedoraproject.org/pub/epel/6/i386/epel-release-6-5.noarch.rpm

rpm -ivh epel-release-6-5.noarch.rpm

然后在創建一個文件:/etc/yum.repos.d/dag.repo

#vim /etc/yum.repos.d/dag.repo

[dag]

name=Dag RPM Repository for Red Hat Enterprise Linux

baseurl=http://apt.sw.be/redhat/el$releasever/en/$basearch/dag

gpgcheck=1

gpgkey=http://dag.wieers.com/rpm/packages/RPM-GPG-KEY.dag.txt

enabled=1

弄完以后就可以通過yum來安裝Munin了。

1. 監控端（生成Munin圖表的server）安裝：

#yum -y install munin

2. 被監控端（提供運行數據的server）安裝：

#yum -y install munin-node

3. 監控端配置:

Munin不用設置用戶，只需要制定一個發布圖表的目錄即可，當然這個目錄最好是web服務器中的目錄，這樣就能夠直接通過web服務器查看監控信息了：

# vim /etc/munin/munin.conf

Configfile for Munin master

dbdir /var/lib/munin/

htmldir /var/www/munin/

#如果/var/www是web服務器的主目錄的話，就在里面創建一個用戶名為munin的目錄否則munin無法寫入；名稱隨便可以起，例子中的名稱也是munin

logdir /var/log/munin

rundir /var/run/munin/

# This is an example of the correct way to activate Nagios warnings

contact.nagios.command /usr/local/nagios/bin/send_nsca nagioshost.example.com -c /usr/local/nagios/etc/send_nsca.cfg -to 60

# From and including the first host, no more global directives can be defined.

# Everything after one host definition belongs to that host, until another host definition is found.

[foo.example.com] # 創建一個名為foo.example.com的監控

#

address 12.23.34.56 #被監控的IP地址為12.23.34.56

4. 被監控端配置

# vim /etc/munin/munin-node.conf

log_level 4

log_file /var/log/munin/munin-node.log

port 4949

pid_file /var/run/munin/munin-node.pid

background 1

host *

user root

group root

setsid yes

ignore_file ~$

ignore_file \.bak$

ignore_file %$

ignore_file \.dpkg-(tmp|new|old|dist)$

ignore_file \.rpm(save|new)$

# host_name localhost.localdomain

allow ^127\.0\.0\.1$

#指定自己允許被那個IP地址監控,寫成正則表達式的格式，例如允許被12.21.34.43監控就寫成allow ^12\.21\.34\.43$

然后分別啟動監控端的munin服務和被監控端的munin-node服務即可。第一次畫圖會比較慢，等幾個小時后圖形就正常了。

監控服務端啟動：

#service munin start

#chkconfig munin on //為了保證服務開機啟動

被監控段啟動：

#service munin-node start

#chkconfig munin-node on //為了保證服務開機啟動

安裝Munin監控替代Cacti | Alex's blog