第二階段視頻2-39nagios監(jiān)控

NagiosNagiosWindowx，Un，Route，tch，具有報警功能，是一個網(wǎng)絡監(jiān)控系統(tǒng)。它可以監(jiān)視你指定的主機和服務，并在那些設備“變壞”和“變好”的時候通知管理員。態(tài)恢復后發(fā)出正常的郵件或短信通知。NagiosCoreLinux當然，它在其他的Unix系統(tǒng)下應該也能進行工作。Nagios os界面很不美觀，可以更換主題 //Nagios插件 NagiosC/SB/S優(yōu)點 1：監(jiān)控網(wǎng)路服務狀態(tài)2：監(jiān)控主機資源（處理器符合，硬盤利用率3：拓展，根據(jù)自己的需求實現(xiàn)拓展檢測功能（插件開發(fā)4：7：8：WEBNagiosNagiosNagiosNagios會維持一個隊列，所有插件返回來的狀態(tài)信息都進入隊列，Nagios首開始讀取信息，并進行處理后，把狀態(tài)結(jié)果通過web顯示出來。Nagios提供了許多插件，利用這些插件可以方便的監(jiān)控很多服務狀態(tài)。安裝完成后，在nagios主目錄下的/libexec里放有nagios自帶的可以使用的所有插件，如，check_diskcheck_loadCPU等等。每一個插件可以通過運行./check_xxx–h來查看其使用方法和功能。獲取數(shù)據(jù)的方式：主動發(fā)送、NRPESNMP、Nagios通過NRPE來遠端管理服務Nagioscheck_nrpe插件，并告訴check_nrpe去檢SSL，check_nrpe連接遠端機子上的NRPENRPE運行本地的各種插件去檢測本地的服務和狀態(tài)最后，NRPEcheck_nrpe，check_nrpe再把結(jié)果送到Nagios狀態(tài)隊列中。NagiosNagiosLAMP #Nagios插件，用于存放腳本和命令 #也就是Nsclient++，用來監(jiān)控Windows，分為64為何32位版本 Nagios NagiosLAP（zabbixLNMPLAP[root@XueGod63~]#yuminstall-ygccglibcglibc-commonphpgdgd-devellibpnglibmnglibjpegzlib[root@XueGod63~]#yuminstall-yhttpd;servicehttpdNagios[root@XueGod63~]#useraddnagios Nagios用nologin的shell，nagios會用到[root@XueGod63~]#groupaddnagcmd [root@XueGod63~]#usermod-Gnagcmdnagios //將Nagios和apache加入該組[root@XueGod63~]#usermod-GnagcmdNagiosnrpe-nagios-plugins-2.1.1.tar.gznrpe-nagios-plugins-2.1.1.tar.gzGeneralNagiosexecutable:Nagiosuser/group:GeneralNagiosexecutable:Nagiosuser/group:#Commanduser/group:#EmbeddedPerl:EventBroker:Install${prefix}:/ #Lockfile:Checkresultdirectory:Initdirectory:Apacheconf.ddirectory:/etc/httpd/conf.d #Apacheconf.d配置Mailprogram:HostOS:linux-WebInterfaceHTMLURL: #CGIURL:http://localhost/nagios/cgi-Traceroute(usedbyWAP):Reviewtheoptionsaboveforaccuracy.Iftheylooktype'makeall'tocompilethemainprogramandCGIs.[root@XueGod63nagios]#makeall//根據(jù)上面提示，Makeall****CompilefinishedIfthemainprogramandCGIscompiledwithoutanyerrors,youcancontinuewithinstallingNagiosasfollows(type'make'withoutanyargumentsforalistofallpossibleoptions):#makeThisinstallsthemainprogram,CGIs,andHTMLmakeinstall-Thisinstallstheinitscriptinmakeinstall-Thisinstallsandconfigurespermissionsonthedirectoryforholdingtheexternalcommandfilemakeinstall-Thisinstalls*SAMPLE*configfilesinYou‘llhavetomodifythesesamplefilesbeforeyouuseNagios.ReadtheHTMLdocumentationformoreondoingthis.Payparticularattentiontothedocsobjectconfigurationfiles,astheydeterminethingsgetmakeinstall-ThisinstallstheApacheconfigfileforthewebmakeinstall- #ThisinstallstheExfoliationthemeforthewebmakeinstall-classicui Thisinstallstheclassicthemefortheweb***SupportNotesIfyouhavequestionsaboutconfiguringorrunningpleasemakesurethatLookatthesampleconfigReadthedocumentationontheNagiosLibrarybeforeyoupostaquestiontooneofthemailingAlsomakesuretoincludepertinentinformationthathelpothershelpyou.ThismightWhatversionofNagiosyouareWhatversionofthepluginsyouareRelevantsnippetsfromyourconfigRelevanterrormessagesfromtheNagioslogFormoreinformationonobtainingsupportforNagios,[root@XueGod63nagios]#makeinstall&&makeinstall-init&&makeinstall-commandmode&&makeinstall-config&&make安裝生成即//makeinstall-init 安裝生成/etc/rc.d/init.d/nagios啟動腳//makeinstall- 下的nagios//makeinstall- nagios 安裝Nagios的WEB配置文件到Apacheconf.d[root@XueGod63nagios]#cd/root/Nagios;config.inc.phpconfig.inc.php rss-corefeed.phpphp imagesindex.phpmain.phprobots.txtrss-newsfeed.phpssimakeinstall-init[root@XueGod63Nagios]#ls #其實就是在makeinstall-configNagios[root@XueGod63Nagios]#lscgi.cfgcgi.cfgnagios.cfgobjects#pluginresource.cfg:定義了很多資源變量的調(diào)[root@XueGod63Nagios]#ls#[root@XueGod63Nagios]#vimAliasAlias/nagiosNagios[root@XueGod63Nagios]#ll#Nagios#nagios配置文件所在目錄，初始安裝只有幾個*.cfg#NagiosCgi#Nagios#日志文件，pidnagios[root@XueGod63Nagios]#vim##系##機，時間#模板（#監(jiān)控本機相關配置文 #（用 # # # #[root@XueGod63Nagios]#vimnagios.cfg###URL后面加上/nagios###Nagios[root@XueGod63Nagios]#servicehttpdvim/etc/httpd/conf.d/nagios.conf[root@XueGod63Nagios]#vimAliasAlias/nagios<Directory"/usr/local/nagios/share">#SSLRequireSSLOptionsNoneAllowOverrideNoneOrderallow,denyAllowfromall#Order##Denyfrom#AllowfromAuthName"NagiosAccess"AuthTypeAuthUserFile/usr/local/nagios/etc/htpasswd.usersRequirevalid-user[root@XueGod63Nagios]#htpasswd--cc[[root@XueGod63Nagios]#cat#[root@XueGod63Nagios]#servicehttpdrestart 用戶名是nagiosadmin,密碼123456）##nagiosnagiosadminnagios，binnagios[root@XueGod63Nagios]#/usr/local/nagios/bin/nagios--v=--verify-configTotalTotalTotal [root@XueGod63Nagios]#/usr/local/nagios/bin/nagios-Nagios-plugins為了后面的實驗要求，我們先把mysql客戶端安裝了yuminstallmysqlmysql-下面[root@XueGod63Nagios]#tarxvfnagios-plugins-2.1.1.tar.gz-[root@XueGod63Nagios]#cd/usr/local/src/nagios-plugins-2.1.1/[root@XueGod63nagios-plugins-2.1.1]#./configure--with-nagios-user=nagios--with-nagios-[root@XueGod63nagios-plugins-2.1.1]#make&&makeinstall; check_ifoperstatuscheck_mysql_queryNagios[root@XueGod63Nagios]#servicehttpdrestart;servicenagiosNagios（指定主配置文件需要加載的配置文件—1:原理數(shù)據(jù)收集，數(shù)據(jù)呈現(xiàn)2Nagiosnrpe5：創(chuàng)建Nagios運行用戶和組，加入我們的運行組6：主程序安裝，./configure–with-command-group=nagcmd(makeall7:htpasswdweb認證用戶并測試登陸8Nagios-pluginsNFS[root@XueGod63Nagios]#cd/usr/local/nagios/etc/objects[root@XueGod63objects]#cplocalhost.cfg [root@XueGod63objects]#vimdefinedefine}check/usr/local/nagios/libexec/目錄下檢測格式：check_tcp!端口號 [root@XueGod63objects]#/etc/init.d/nfsrestart[root@XueGod63objects]#showmount-e3 NFSExportExportlistfor/tmplocalhost[root@XueGod63objects]#vim[root@XueGod63objects]#/usr/local/nagios/bin/nagios-TotalTotalTotal [root@XueGod63objects]#servicenagios nagiosNFS[root@XueGod63objects]#servicenfsstop NFS后有一個Re-schedulethenextcheckofthisservice，強制刷新修改Nagios默認的主題：把主題包解壓到對應的目錄下[root@xuegod63~]#unzipvautour_style.zip-d/usr/local/nagios/share/ replace/usr/local/nagios/share/images/ack.gif?[y]es,[n]o,[A]ll,[N]one,[r]ename:Ainflating:NagiosMYSQL【監(jiān)控任何一臺服務器，工作流程是定義主機，定義服務，定義命令 MySQLServerXueGod64[root@XueGod64~]#yuminstall-ymysql-servermysql[root@XueGod64~]#servicemysqldrestart[root@XueGod64~]#mysql mysql>createdatabasenagiosdb;mysql>grantselectonnagiosdb.*tonagiosdb@'3';mysql>exitXueGod63Nagios[root@XueGod63objects]#vim##Definitionsformonitoringthelocal(Linux)[root@XueGod63objects]#vimdefinedefine # #IP 片statusmap_image ##2D#3D}[root@XueGod63objects]#vimdefinedefine }define}[root@XueGod63objects]#vimdefinedefine $USER1$/check_mysql-H$HOSTADDRESS$-u-d}Uptime:1810Threads:1Uptime:1810Threads:1Questions:6Slowqueries:0Opens:15Flushtables:1Opentables:8Queriespersecondavg:0.3|Connections=4c;;;Open_files=16;;;Open_tables=8;;;Qcache_free_memory=0;;;Qcache_hits=0c;;;Qcache_inserts=0c;;;Qcache_lowmem_prunes=0c;;;he_not_cached=0c;;;Qcache_queries_in_cache=0;;;Queries=6c;;;Table_locks_waitedTable_locks_waited=0c;;;Threads_connected=1;;;Threads_running=1;;;Uptime=1check_commandcommand.cfg才能使用，而command.cfg中的command_line中使用的命令，必須在/usr/local/Nagios/libexecplugins手動檢測command.cfg的命令有效性mysqlplugins才會生成yuminstallmysqlmysql-[root@XueGod64~]#servicemysqldstop //XueGod64[root@XueGod63objects]#/usr/local/nagios/libexec/check_mysql-H-unagiosdb-dcan'tcan'tconnecttoMySQLserveron'4'[root@XueGod63objects]#servicenagiosrestart[root@XueGod64~]#servicemysqldstart去停掉數(shù)據(jù)庫[root@XueGod64~]#servicemysqld定義監(jiān)控httpd服務：先手動測試下：/usr/local/nagios/libexec/check_tcpH4p[root@XueGod63objects]#vimdefinedefine #IP 片statusmap_image ##2D#3D}[root@XueGod63objects]#vimdefinedefine }[root@XueGod63objects]#vimdefinedefine $USER1$/check_tcp-H$HOSTADDRESS$-p}[root@XueGod63objects]#servicenagios私有信息，包括默認的硬盤使用，進程數(shù)目，SWAPNRPEnrpe插NRPEcheck_nrpe，NRPENagioscheck_nrpecheck_nrpenrpe工作原SSLnrpe不需要安裝NAGIOS服務端NRPE1：nagios2：NRPE（makeinstall-daemon-configmakeinstall-xinetd）3：配置我們xinted服務，允許誰來拿數(shù)據(jù)4：解決依[root@XueGod63Nagios]#yuminstall-yopensslopenssl-devel[root@XueGod64~]#yuminstall-yopensslopenssl-develSSL服務端安裝[root@XueGod63Nagios]#tarxvfnrpe-2.15.tar.gz-C/usr/local/src/[root@XueGod63Nagios]#cd/usr/local/src/nrpe-2.15/[root@XueGod63nrpe-2.15]#./configure&&make&&makeinstall[root@XueGod63nrpe-2.15]#makeinstall-plugin&&makeinstall-[root@XueGod63nrpe-2.15]#cd/root/Nagios/;ls #nrpe客戶端配[root@XueGod63objects]#cd[root@XueGod63Nagios]#scpnagios-plugins-2.1.1.tar.gznrpe-2.15.tar.gz[root@XueGod64~]#useradd-s/sbin/nologinnagios[root@XueGod64~]#groupaddnagcmd[root@XueGod64~]#usermod-Gnagcmdnagios[root@XueGod64~]#tarxvfnagios-plugins-2.1.1.tar.gz-C/usr/local/src/[root@XueGod64~]#tarxvfnrpe-2.15.tar.gz-C/usr/local/src/[root@XueGod64~]#cd/usr/local/src/nagios-plugins-2.1.1/[root@XueGod64nagios-plugins-2.1.1]#./configure&&make&&makeinstall[root@XueGod64nagios-plugins-2.1.1]#cd../nrpe-2.15/[root@XueGod64nrpe-2.15]#./configure&&make&&makeinstall[root@XueGod64nrpe-2.15]#makeinstall-daemon-config 用make-install-plugin#default:#description:NRPE(NagiosRemotePluginExecutor)servicenrpe{#default:#description:NRPE(NagiosRemotePluginExecutor)servicenrpe{== ==== =-c/usr/local/nagios/etc/nrpe.cfg--log_on_failure+==nagios服務器地址235nrpeIP#2:#iptables-L不加-n參數(shù)，80轉(zhuǎn)->www}echo#NRPE">># 客戶端nrpe命[root@XueGod64~]#vim-w38%-c35%-p/dev/sda1-w42%-c43%-pcommand[check_swap]=/usr/local/nagios/libexec/check_swapw20-c10%#-w-C為告急sda242%[root@XueGod64~]#servicexinetd服務端手動測NRPE[root@XueGod63Nagios]#/usr/local/nagios/libexec/check_nrpeNRPE[root@xuegod73[root@xuegod73~]#/usr/local/nagios/libexec/check_nrpe-H4-cDISKOK-freespace:/20752MB(74%#CHECK_NRPE:Error-CouldnotcompleteSSLhandshake.定義被監(jiān)控主define define statusmap_image}定義需要監(jiān)控的服[root@XueGod63objects]#vimdefinedefineRoot#/root}defineTotal}defineCurrent}定義NRPE監(jiān)控命[root@XueGod63objects]#vimdefinedefine $USER1$/check_nrpe-H$HOSTADDRESS$-c}$ARG1$表示調(diào)用后面的參數(shù)。[root@XueGod63objects]#servicenagios前端監(jiān)rootpartition[root@XueGod64~]#ddif=/dev/zeroof=1.txtcount=100[root@XueGod64~rm-rf 1:（2：NRPE定義主機，定義服務（check_nrpe!check_ping）,定義命令（check_nrpe）還有一個定義命令（客戶端做command[check_adfadf]）-w–cxinetdroot@XueGod63Nagios]#yuminstall-ysendmail[root@XueGod63Nagios]#/etc/init.d/sendmailstart[root@XueGod63Nagios]#chkconfigsendmailonsendmail --configdefinedefineNagios }[root@XueGod63objects]#servicenagios[root@XueGod64~]#servicemysqld [root@XueGod64~]#/etc/init.d/mysqld 139Windows大概步驟下載安裝windows代理插修改配置文件NSC.INI1、去掉在[modulesCheckWMI.dllRemoteConfiguration.dll;啟動服務nsclient++.exe啟動代理服務，并設置服務和桌面交互Nagios主控端配置修改主配置文件，啟用監(jiān)控windows配置文件編輯這個配置文件，修改監(jiān)控主機信息vimdefineusegeneric-servicehost_namewinserverservice_descriptionUptimecheck_commandcheck_nt!UPTIME}defineusegeneric-servicehost_namewinserverservice_descriptionCPULoadcheck_commandcheck_nt!CPULOAD!-ldefineusegeneric-servicehost_nameservice_descriptionMemorycheck_commandcheck_nt!MEMUSE!-w80-c機器的機器的defineusegeneric-servicehost_nameservice_descriptionC:\Drivecheck_commandcheck_nt!USEDDISKSPACE!-lc-w80-cdefineusegeneric-servicehost_namewinserverservice_descriptionW3SVCcheck_commandcheck_nt!SERVICESTATE!-dSHOWALL-l}defineusegeneric-servicehost_namewinserverservice_descriptionExplorercheck_commandcheck_nt!PROCSTATE!-dSHOWALL-l}定義監(jiān)控命令vi##這個命令已經(jīng)存在，只需要添加-s123456就可以指定密definecommand{command_namecheck_ntcommand_line$USER1$/check_nt-H$HOSTADDRESS$-p12489-s456-v$ARG1$}注意：這里的-s123456密碼一定要windows配置文件的密碼保持一致，重啟如果修改好Nagios配置文件，需要驗證你的配置文件并重啟動Nagios。件。一定要保證驗證過程中不再有出錯信息后再啟動或重啟動Nagios!詳細配置參考/uid-24426415-id-pnp4nagiosprocess_perfdata.plrrdtoolnagiosPnp4nagios使用的是RRDtool工具來實現(xiàn)畫圖的[root@XueGod63Nagios]#yuminstall-yrrdtoolphp-gdperl-Time-HiRes[root@XueGod63Nagios]#tarxvfpnp4nagios-0.6.25.tar.gz[root@XueGod63Nagios]#cdpnp4nagios-0.6.25[root@XueGod63pnp4nagios-0.6.25]#./configure--prefix=/usr/local/pnp4nagios--with-nagios-[root@XueGod63pnp4nagios-0.6.25]#makeall&&makeinstall&&makeinstall-webconf&&makeinstall-config&&makeinstall-init[root@XueGod63pnp4nagios-0.6.25]#makefullinstallpnp4naigos和nagios[root@XueGod63pnp4nagios]###修改以下幾個內(nèi)#修#取消注[root@XueGod63pnp4nagios]###'process-host-perfdata'commanddefinitiondefinecommand{ /usr/bin/perl/usr/local/pnp4nagios/libexec/process_perfdata.pl-dHOSTPERFDATA}#'process-service-perfdata'commanddefinitiondefinecommand{ /usr/bin/perl/usr/local/pnp4nagios/libexec/p}[root@XueGod63pnp4nagios]#definedefinehost action_url/pnp4nagios/index.php/graph?host=$HOSTNAME$' 1}defines