NRPE監(jiān)控linux本地信息

Nagios+Cacti監(jiān)控之NRPE監(jiān)控linux本地信息（一）描述:監(jiān)控遠(yuǎn)程主機的磁盤容量，cpu負(fù)載這樣的本地信息。nagios利用NRPE實驗對遠(yuǎn)程主機的“本地信息”進行監(jiān)控。NRPE工作原理MlomitoringHostRemoteLihux/UnixHo新NRPE由兩部分組成：+-S MlomitoringHostRemoteLihux/UnixHo新NRPE由兩部分組成：+-S cb(ick_nrp<?NagiosNRPE□check_nrpe插件，位于監(jiān)控主機上□NRPEdaemon，運行在遠(yuǎn)程的Linux主機上（通常是被監(jiān)控機）當(dāng)Nagios需要監(jiān)控某個遠(yuǎn)程Linux主機的服務(wù)或者資源時：nagios會運行check_nrpe這個插件，告訴它要檢查什么；check_nrpe插件會連接到遠(yuǎn)程的NRPEdaemon，所用的方式是SSL;NRPEdaemon會運行相應(yīng)的Nagios插件來執(zhí)行檢查；NRPEdaemon將檢查的結(jié)果返回給check_nrpe插件，插件將其遞交給nagios做處理。需求：監(jiān)控機監(jiān)控遠(yuǎn)程主機的cpu、磁盤、內(nèi)存等信息。目的：實現(xiàn)監(jiān)控遠(yuǎn)程主機的各項基本信息。在監(jiān)控主機上：安裝check_nrpe插件tarzxvfnrpe-2.13.tar.gzcdnrpe-2.13./configure-prefix=/var/www/html/nagiosmakeallmakeinstall-plugin在被監(jiān)控機上：yum-yinstallxinetd增加用戶設(shè)定密碼useraddnagios-pPer@f0ect*（寫入你準(zhǔn)備設(shè)置的密碼）安裝nagios插件cd/softtarzvxfnagios-plugins-1.4.16.tar.gzcdnagios-plugins-1.4.16./configure--prefix=/var/www/html/nagios/make&&makeinstall這一步完成后，會在/var/www/html/nagios下生成3個目錄include、libexec、shareI[r0ot01ocalhostnagios]fl1sinclude1ibexecshare[root@localhostnagiosJ|修改目錄權(quán)限chownnagios.nagios/var/www/html/nagioschown-Rnagios.nagios/var/www/html/nagios/libexec安裝NRPEcd/softtarzxvfnrpe-2.13.tar.gzJcdnrpe-2.13./configure-prefix=/var/www/html/nagiosmakeallmakeinstall-daemonmakeinstall-daemon-config現(xiàn)在在查看nagios目錄，有5個文件IIroot@13ca_ho5tnagiasI+rbinetcincludelibcxccshare[roat@localhoEtnagios]fl是將NRPEdaemon作為xinetd下的一個服務(wù)運行的。在nrpe目錄下執(zhí)行makeinstall-xinetdLroot&localhostnrpe-2.13J#make/usr/liinJ1~c一皿644 -config-nrpe.xiieTd/e^c/xinetd,d/nrpe編輯這個腳本vim/etc/xinetd.d/nrpeonly_from后增加監(jiān)控主機的IP地址

-j.—j.上.二w|T—mu*J-^J.uquTrnriT|■■r^BuAWViVB^w盅| ifr十 flagssoeket_typeportwaitusergroLLpserverREUSEstream5666nonagiosnagios/var/' html■nagios/bim-nrpeserver_args_c/var/^?/htmlo^nagios/etc/nrpe.cfg一一inetd1os_on_failure+=USERIDdisable =no onlyfrom =L92.L68.&W34' 加入監(jiān)控主機的邛地讓,中間用三格9.編輯/etc/services文件，在末尾增加NRPE服務(wù)vi/etc/servicesh+cuiaiuh+cuiaiua￡ua.cuw#LQobj'SCtriiqobjecTiqobject ■48619/udptililiLDcalservices—插入—啟動xinetd服務(wù)servicexinetdstart.rootSbanshunrpe~2.13]servicexinetdstartStartingxin^:d:[OK].roorSbanshunrpe~2.13]查看NRPE是否已經(jīng)啟動netstat-an|grep5666i— 、q-i- <x?>u[rootfiLocaIhostqq-i.LJ'—'IB i_r I■nrpe-2.1J]i；.slat-angrep5666tcp 00:::5666LISTENrn'oot@locslho5tnrp?-2-131#可以看到5666端口已經(jīng)在監(jiān)聽了。被監(jiān)控端iptables給權(quán)限vi/etc/sysconfig/iptables添加下面2彳亍-AINPUT-s2/32-pudp-mudp--dpor