RedHatlinuxEnterpriseLinux5架设ＭＲＴＧ

请问高人，谁用RedHat linux Enterprise Linux 5 架设　ＭＲＴＧ，麻烦贴下详细配置，在下遇到不少问题
[root@localhost Server]# /usr/local/mrtg/bin/cfgmaker public@localhost > /etc/mrtg/mrtg.cfg
--base: Get Device Info on public@localhost:
SNMP Error:
no response received
SNMPv1_Session (remote host: "localhost" [127.0.0.1].161)
community: "public"
request ID: 844723821
PDU bufsize: 8000 bytes
timeout: 2s
retries: 5
backoff: 1)
at /usr/local/mrtg/bin/../lib/mrtg2/SNMP_util.pm line 627
SNMPWALK Problem for 1.3.6.1.2.1.1 on public@localhost::::::v4only
at /usr/local/mrtg/bin/cfgmaker line 924
WARNING: Skipping public@localhost: as no info could be retrieved







[root@localhost ~]# /usr/local/mrtg/bin/indexmaker /etc/mrtg/mrtg.cfg --output=/usr/local/apache/htdocs/index.html --title="My MRTG"
ERROR: Line 8 ( WorkDir: /usr/local/apache/htdocs) in CFG file (/etc/mrtg/mrtg.cfg) does not make sense