I guess you ran into a problem when some folders were not created. You installed the current version 3.3.1 from source? I also had the problem that some folders (in var) weren't created. I'll show you my conf: Everything in etc is nagios:nagios Everything in var is nagios:nagios except the folder rw: pmoinfr01:/usr/local/nagios/var # ll total 4688 drwxr-xr-x 2 nagios nagios 4096 Dec 14 00:00 archives -rw-r--r-- 1 nagios nagios 5 Dec 9 14:32 nagios.lock -rw-rw-r-- 1 nagios nagios 186216 Dec 14 17:02 nagios.log -rw-r--r-- 1 nagios nagios 1105810 Dec 14 14:28 objects.cache -rw------- 1 nagios nagios 1721471 Dec 14 16:28 retention.dat drwxrwsr-x 2 nagios nagcmd 4096 Dec 14 14:28 rw drwxr-xr-x 3 nagios nagios 4096 Nov 14 15:21 spool -rw-rw-r-- 1 nagios nagios 1712042 Dec 14 17:08 status.dat Subfolders and files in archives and spool are also nagios:nagios. Files in rw are nagios:nagcmd. Where nagios=Nagios user, nagcmd=Nagios Command User. <div class="gmail_quote">On Wed, Dec 14, 2011 at 4:19 PM, Marco Borsani <<a href="mailto:m.borsani@it.net">m.borsani@it.net</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div link="blue" vlink="purple" lang="IT"><div>Hi all May you tell with which are you ownership in the Nagios directory and subdirectory ? Especially the : nagios/etc … (and subdir)nagios/var … (and subdir) regards Marco Borsani Unix and Monitoring SysadminTechnical Operations Dpt. tel: <a href="tel:%2B39%20010%204310115" value="+390104310115" target="_blank">+39 010 4310115</a> fax: <a href="tel:%2B39%2002%2030130311" value="+390230130311" target="_blank">+39 02 30130311</a> cell: <a href="tel:%2B39%20329%205953944" value="+393295953944" target="_blank">+39 329 5953944</a> ITnet SrlSocietà con socio unico Direzione e Coordinamento di … </div></div> ------------------------------------------------------------------------------ Cloud Computing - Latest Buzzword or a Glimpse of the Future? This paper surveys cloud computing today: What are the benefits? Why are businesses embracing it? What are its payoffs and pitfalls? <a href="http://www.accelacomm.com/jaw/sdnl/114/51425149/" target="_blank">http://www.accelacomm.com/jaw/sdnl/114/51425149/</a> _______________________________________________ Nagios-users mailing list <a href="mailto:Nagios-users@lists.sourceforge.net">Nagios-users@lists.sourceforge.net</a> <a href="https://lists.sourceforge.net/lists/listinfo/nagios-users" target="_blank">https://lists.sourceforge.net/lists/listinfo/nagios-users</a> ::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. ::: Messages without supporting info will risk being sent to /dev/null </blockquote></div>