I successfully installed nagios and nagiosql successfully and then i installed nagiosgrapher , the graphs are blank for my hosts. I'm using Debian GNU/Linux 5.0 , Nagiosql version 3.04 and nagios3 My log files are not helpful, the sample output is as below. nms:/opt# tail -f /var/log/nagiosgrapher/ngraph.log 2011-01-18 16:54:37 VALUES: [27105900800-Ninirichi][PING]: RTA=4.18 Loss=0 2011-01-18 16:54:37 VALUES: [localhost][HTTP]: http_res=0.001474 2011-01-18 16:54:47 VALUES: [27879422857-RedAlertEL][PING]: RTA=68.98 Loss=0 2011-01-18 16:54:47 VALUES: [27879422871-Telemasters][PING]: RTA=58.94 Loss=0 2011-01-18 16:54:47 VALUES: [27879422860-ProtekUMT][PING]: RTA=66.97 Loss=0 2011-01-18 16:54:47 VALUES: [27879422863-NzelenzelePrestron][PING]: RTA=46.54 Loss=0 2011-01-18 16:55:17 VALUES: [27879413762-TargetCranes][PING]: RTA=15.73 Loss=16 2011-01-18 16:55:17 VALUES: [27879413740-IpexDBN][PING]: RTA=37.26 Loss=0 2011-01-18 16:55:47 VALUES: [27879434778-ChalkAiRumt][PING]: RTA=65.54 Loss=0 2011-01-18 16:55:47 VALUES: [gateway][PING]: RTA=0.55 Loss=0 My ngraph config file is as below : pipe /var/lib/nagiosgrapher/ngraph.pipe port 5667 buffer 1024 interface pipe # please use subfolder pidfile /var/run/nagiosgrapher/nagiosgrapher.pid user nagios group nagios # normal_check_interval step 60 # VALUE (e.g. 600 for 5 minutes ) or AUTO heartbeat 600 rrdpath /var/lib/nagiosgrapher/rrd/ tmppath /tmp/nagiosgrapher/ fontfile serviceext_type MULTIPLE serviceextinfo /etc/nagiosgrapher/nagios3/serviceextinfo.cfg serviceext_path /etc/nagiosgrapher/nagios3/serviceext url /cgi-bin/nagios3/graphs.cgi #notes_url /wiki/index.php/$HOSTNAME$#$SERVICEDESC$ notes_url "" nagios_config /etc/nagios3/nagios.cfg cgi_config /etc/nagios3/cgi.cfg icon_image_tag 'dot.png' border="0"></a><A TARGET="_blank" HREF='gr aphs.cgi?___URL___'><img src='___IMAGESRC___' ' icon_image_src /nagios3/images/graph.png icon_image_script /cgi-bin/nagios3/rrd2-system.cgi?___URL___&start=-54 00&title=Actual&width=20&height=20&type=AVERAGE&only-graph=true icon_image_static false log_file /var/log/nagiosgrapher/ngraph.log log_level 1 rrd_color_background ffffff rrd_color_font 333333 rrd_color_arrow ff0000 rrd_color_frame ffffff rrd_color_grid rrd_color_canvas ffffff rrd_color_shadea c0c0c0 rrd_color_shadeb c0c0c0 fe_use_browser_all false fe_use_browser_for nagiosadmin fe_use_browser_url false fe_use_timefilter true use_authentication true # # HOOKS: Comma seperated list of perl modules ... # All hooks before an srvext entry is created # hooks_serviceext NagiosGrapher::Hooks::SrvExtTest # Hooks before RRD is updated # hooks_rrdupdate NagiosGrapher::Hooks::RRDUpdateTest # Example hook for writing a hostextinfo # With the action=hostgraph example ... # The module runs under hooks_serviceext too ... # hooks_rrdupdate NagiosGrapher::Hooks::SrvExtWriteHostextInfo # Bevor Multi- and Singlegraphs, but different types. # Hooks before an image is displayed # hooks_imagegraph NagiosGrapher::Hooks::ImageGraphTest # Example for invoking multiple hooks ... # hooks_imagegraph NagiosGrapher::Hooks::ImageGraphTest,NagiosGrapher ::Hooks::ImageGraphTest } # Includes cfg_dir=/etc/nagiosgrapher/ngraph.d # [EOF] (Don't remove this line ...) Then i have changed all the other settings on nagios.cfg : process_peformance_data=1 service_perfdata_command=ngraph-process-service-perfdata-pipe. All the graphs are blank on the services, and the rdd file contains all my hosts. and there have been created at well in /etc/nagiosgrapher/nagios3/servicext/ Anyone out there with an idea, if you require any other information i will gladly provide so as to help resolve this issue. Regards <pre class="code"> </pre>