cacti通过snmp监控ubuntu9.10网卡流量遇到的问题
折腾无线，snmp总是链接不上，debug报如下错误；
+ Running data query [1]. + Found type = '3' [snmp query]. + Found data query XML file at '/var/www/cacti/resource/snmp_queries/interface.xml' + XML file parsed ok. + Executing SNMP walk for list of indexes @ '.1.3.6.1.2.1.2.2.1.1' + No SNMP data returned + Found data query XML file at '/var/www/cacti/resource/snmp_queries/interface.xml' + Found data query XML file at '/var/www/cacti/resource/snmp_queries/interface.xml' + Found data query XML file at '/var/www/cacti/resource/snmp_queries/interface.xml'
谷歌百度，终于找到解决办法，记录之。。。
bear@njava:/var/www/njava$ sudo vi /etc/snmp/snmpd.conf # First, map the community name (COMMUNITY) into a security name # (local and mynetwork, depending on where the request is coming # from): # sec.name source community #com2sec paranoid default public #com2sec paranoid default njava com2sec readonly default public bear@njava:/var/www/njava$ sudo /etc/init.d/snmpd restart
获取到后的数据源
+ Running data query [1]. + Found type = '3' [snmp query]. + Found data query XML file at '/var/www/cacti/resource/snmp_queries/interface.xml' + XML file parsed ok. + Executing SNMP walk for list of indexes @ '.1.3.6.1.2.1.2.2.1.1' + Index found at OID: '1.3.6.1.2.1.2.2.1.1.1' value: '1' + Index found at OID: '1.3.6.1.2.1.2.2.1.1.2' value: '2' + Index found at OID: '1.3.6.1.2.1.2.2.1.1.3' value: '3' + Located input field 'ifIndex' [walk] + Executing SNMP walk for data @ '.1.3.6.1.2.1.2.2.1.1' + Found item [ifIndex='1'] index: 1 [from value] + Found item [ifIndex='2'] index: 2 [from value] + Found item [ifIndex='3'] index: 3 [from value] + Located input field 'ifOperStatus' [walk] + Executing SNMP walk for data @ '.1.3.6.1.2.1.2.2.1.8' + Found item [ifOperStatus='Up'] index: 1 [from value] + Found item [ifOperStatus='Up'] index: 2 [from value] + Found item [ifOperStatus='Down'] index: 3 [from value] + Located input field 'ifDescr' [walk] + Executing SNMP walk for data @ '.1.3.6.1.2.1.2.2.1.2' + Found item [ifDescr='lo'] index: 1 [from value] + Found item [ifDescr='eth0'] index: 2 [from value] + Found item [ifDescr='eth1'] index: 3 [from value] + Located input field 'ifName' [walk] + Executing SNMP walk for data @ '.1.3.6.1.2.1.31.1.1.1.1' + Found item [ifName='lo'] index: 1 [from value] + Found item [ifName='eth0'] index: 2 [from value] + Found item [ifName='eth1'] index: 3 [from value] + Located input field 'ifAlias' [walk] + Executing SNMP walk for data @ '.1.3.6.1.2.1.31.1.1.1.18' + Found item [ifAlias=''] index: 1 [from value] + Found item [ifAlias=''] index: 2 [from value] + Found item [ifAlias=''] index: 3 [from value] + Located input field 'ifType' [walk] + Executing SNMP walk for data @ '.1.3.6.1.2.1.2.2.1.3' + Found item [ifType='softwareLoopback(24)'] index: 1 [from value] + Found item [ifType='ethernetCsmacd(6)'] index: 2 [from value] + Found item [ifType='ethernetCsmacd(6)'] index: 3 [from value] + Located input field 'ifSpeed' [walk] + Executing SNMP walk for data @ '.1.3.6.1.2.1.2.2.1.5' + Found item [ifSpeed='10000000'] index: 1 [from value] + Found item [ifSpeed='100000000'] index: 2 [from value] + Found item [ifSpeed='0'] index: 3 [from value] + Located input field 'ifHwAddr' [walk] + Executing SNMP walk for data @ '.1.3.6.1.2.1.2.2.1.6' + Found item [ifHwAddr=''] index: 1 [from value] + Found item [ifHwAddr='00:0D:60:D4:BC:04'] index: 2 [from value] + Found item [ifHwAddr='00:0D:60:D4:BC:05'] index: 3 [from value] + Located input field 'ifIP' [walk] + Executing SNMP walk for data @ '.1.3.6.1.2.1.4.20.1.2' + Found item [ifIP='127.0.0.1'] index: 1 [from regexp oid parse] + Found item [ifIP='8.8.8.8'] index: 2 [from regexp oid parse] + Found data query XML file at '/var/www/cacti/resource/snmp_queries/interface.xml' + Found data query XML file at '/var/www/cacti/resource/snmp_queries/interface.xml' + Found data query XML file at '/var/www/cacti/resource/snmp_queries/interface.xml' + Found data query XML file at '/var/www/cacti/resource/snmp_queries/interface.xml' + Found data query XML file at '/var/www/cacti/resource/snmp_queries/interface.xml' + Found data query XML file at '/var/www/cacti/resource/snmp_queries/interface.xml'
参考：http://www.linuxquestions.org/questions/linux-networking-3/cacti-traffic-stats-snmp-config-prob-378983/