<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso-8859-1"> <META content="MSHTML 6.00.2900.2627" name=GENERATOR></HEAD> <BODY> <DIV><SPAN class=183304719-26042005><FONT face=Arial color=#0000ff size=2>In the /etc/passwd change the primary group for nagios from 100 to 1000 I just changed mine from the nagios GID to another group and I got the same error. This might fix your problem. The reason root could start it is the setgid() command seams to work for root even if root is not a member of the group.</FONT></SPAN></DIV> <BLOCKQUOTE dir=ltr style="MARGIN-RIGHT: 0px"> <DIV class=OutlookMessageHeader dir=ltr align=left><FONT face=Tahoma size=2>-----Original Message-----<BR><B>From:</B> nagios-users-admin@lists.sourceforge.net [mailto:nagios-users-admin@lists.sourceforge.net]<B>On Behalf Of </B>Rusch, Daniel<BR><B>Sent:</B> Tuesday, April 26, 2005 3:32 PM<BR><B>To:</B> nagios-users@lists.sourceforge.net<BR><B>Subject:</B> [Nagios-users] Possible permission prob?<BR><BR></FONT></DIV> <DIV dir=ltr align=left><SPAN class=422511615-21042005><FONT face=Arial><FONT size=2><SPAN class=372560519-26042005>All,</SPAN></FONT></FONT></SPAN></DIV> <DIV> <DIV><SPAN class=422511615-21042005><FONT face=Arial><FONT size=2></FONT></FONT></SPAN> </DIV> <DIV><SPAN class=422511615-21042005><FONT size=+0><FONT face=Arial size=2>I upgraded my nagios site <SPAN class=372560519-26042005>from <FONT face="Times New Roman" size=3> Version 2.0b2 to  Version 2.0b3 <FONT face=Arial size=2> </FONT></FONT></SPAN>and somehow the permissions (or at least I think that's the problem) got hosed and now I can't start nagios<SPAN class=372560519-26042005> as the nagios user</SPAN>.<SPAN class=372560519-26042005> The site was working properly before I upgraded.</SPAN></FONT></FONT></SPAN></DIV> <DIV><SPAN class=422511615-21042005><FONT face=Arial size=2></FONT></SPAN> </DIV> <DIV><SPAN class=422511615-21042005><FONT face=Arial size=2>I try to start nagios as the user nagios <SPAN class=372560519-26042005>and I get the following error in the log file:</SPAN></FONT></SPAN><SPAN class=422511615-21042005><FONT face=Arial size=2></FONT></SPAN></DIV> <DIV><SPAN class=422511615-21042005><FONT face=Arial size=2></FONT></SPAN> </DIV> <DIV><SPAN class=422511615-21042005><FONT face=Arial size=2>[1114096425] Warning: Could not set effective GID=1000<BR>[1114096425] Failed to drop privileges. Aborting.<BR></FONT></SPAN></DIV> <DIV><SPAN class=422511615-21042005><FONT face=Arial size=2></FONT></SPAN> </DIV> <DIV><SPAN class=422511615-21042005><FONT face=Arial size=2></FONT></SPAN> </DIV> <DIV><SPAN class=422511615-21042005><FONT face=Arial size=2>(by the way<SPAN class=372560519-26042005>,</SPAN> if I start nagios as root, nagios starts just fine) </FONT></SPAN></DIV> <DIV><SPAN class=422511615-21042005><FONT face=Arial size=2></FONT></SPAN> </DIV> <DIV><SPAN class=422511615-21042005><FONT face=Arial size=2></FONT></SPAN> </DIV> <DIV><SPAN class=422511615-21042005><FONT face=Arial size=2></FONT></SPAN> </DIV> <DIV><SPAN class=422511615-21042005><FONT size=+0><FONT face=Arial><FONT size=2><SPAN class=372560519-26042005>In /etc/</SPAN>group:</FONT></FONT></FONT></SPAN></DIV> <DIV><SPAN class=422511615-21042005><FONT face=Arial size=2><SPAN class=422511615-21042005><FONT face=Arial size=2></FONT></SPAN></FONT></SPAN> </DIV> <DIV><SPAN class=422511615-21042005><FONT face=Arial size=2><SPAN class=422511615-21042005><FONT face=Arial size=2>nobody:x:65533:<BR></FONT></SPAN></FONT></SPAN><SPAN class=422511615-21042005><FONT face=Arial size=2>nagios:!:1000:nobody,nagios<BR>nagiocmd:!:1002:nagios,nobody</FONT></SPAN><SPAN class=422511615-21042005><FONT face=Arial size=2></FONT></SPAN></DIV> <DIV><SPAN class=422511615-21042005><FONT face=Arial size=2></FONT></SPAN> </DIV> <DIV><SPAN class=422511615-21042005><FONT face=Arial size=2><SPAN class=372560519-26042005>in /etc/passwd</SPAN></FONT></SPAN></DIV> <DIV><SPAN class=422511615-21042005><FONT face=Arial size=2><SPAN class=372560519-26042005>nagios:x:1002:100::/home/nagios:/bin/bash</SPAN></FONT></SPAN></DIV> <DIV><SPAN class=422511615-21042005><FONT face=Arial size=2><SPAN class=372560519-26042005></SPAN></FONT></SPAN> </DIV> <DIV><SPAN class=422511615-21042005><FONT face=Arial size=2>Directory perms: </FONT></SPAN></DIV> <DIV><SPAN class=422511615-21042005><FONT face=Arial size=2></FONT></SPAN> </DIV> <DIV><SPAN class=422511615-21042005><FONT face=Arial size=2>Nagios Directory:</FONT></SPAN></DIV> <DIV><SPAN class=422511615-21042005><FONT face=Arial size=2>/usr/local/nagios <BR>total 11<BR>drwxrwxr-x 8 nagios nagios 240 2005-03-24 12:07 .<BR>drwxr-xr-x 12 root root 288 2005-03-21 09:21 ..<BR>drwxrwxr-x 2 nagios nagios 104 2005-04-19 11:53 bin<BR>drwxrwxr-x 3 nagios nagios 432 2005-04-22 16:56 etc<BR>drwxr-xr-x 2 nagios nagios 2048 2005-04-26 09:34 libexec<BR>drwxrwxr-x 2 nagios nagios 584 2005-04-19 11:53 sbin<BR>drwxrwxr-x 9 nagios nagios 360 2005-04-19 11:53 share<BR>-rwxr-xr-x 1 nagios nagios 66 2005-03-21 10:27 start<BR>-rwxr-xr-x 1 nagios nagios 66 2005-03-21 10:27 test<BR>drwxrwxr-x 4 nagios nagios 256 2005-04-22 09:32 var<BR></FONT></SPAN></DIV> <DIV><SPAN class=422511615-21042005><FONT face=Arial size=2></FONT></SPAN> </DIV> <DIV><SPAN class=422511615-21042005><FONT face=Arial size=2></FONT></SPAN> </DIV> <DIV><SPAN class=422511615-21042005><FONT face=Arial size=2>Var directory</FONT></SPAN></DIV> <DIV><SPAN class=422511615-21042005><FONT face=Arial size=2>/usr/local/nagios/var </FONT></SPAN></DIV> <DIV><SPAN class=422511615-21042005><FONT face=Arial size=2>total 29<BR>drwxrwxr-x 4 nagios nagios 256 2005-04-22 09:32 .<BR>drwxrwxr-x 8 nagios nagios 240 2005-03-24 12:07 ..<BR>drwxrwxr-x 2 nagios nagios 888 2005-04-19 00:00 archives<BR>-rw-rw-r-- 1 nagios nagios 240 2005-03-21 10:27 comments.dat<BR>-rw-rw-r-- 1 nagios nagios 241 2005-03-21 10:27 downtime.dat<BR>-rw-r--r-- 1 nagios users 212 2005-04-22 09:34 nagios.log<BR>-rw-r--r-- 1 nagios nagios 7389 2005-04-21 10:01 objects.cache<BR>-rw------- 1 nagios nagios 7224 2005-04-21 13:40 retention.dat<BR>drwxrwsr-x 2 nagios nagiocmd 80 2005-04-19 17:04 rw<BR></DIV></FONT><FONT face=Arial size=2></FONT></SPAN> <DIV><SPAN class=422511615-21042005><FONT face=Arial size=2></FONT></SPAN> </DIV> <DIV><SPAN class=422511615-21042005><FONT face=Arial size=2>Bin Directory:</FONT></SPAN></DIV> <DIV><SPAN class=422511615-21042005><FONT face=Arial size=2>/usr/local/nagios/bin <BR>total 392<BR>drwxrwxr-x 2 nagios nagios 104 2005-04-19 11:53 .<BR>drwxrwxr-x 8 nagios nagios 240 2005-03-24 12:07 ..<BR>-rwxrwxr-- 1 nagios nagios 374460 2005-04-19 11:53 nagios<BR>-rwxrwxr-- 1 nagios nagios 24556 2005-04-19 11:53 nagiostats</FONT><FONT face=Arial size=2></FONT></SPAN></DIV> <DIV><FONT size=2><FONT face=Arial><SPAN class=422511615-21042005> </DIV></SPAN></FONT></FONT> <DIV><SPAN class=422511615-21042005></SPAN> </DIV> <DIV><FONT face=Arial size=2></FONT><SPAN class=422511615-21042005> </DIV> <DIV><FONT face=Arial><BR><FONT size=2></FONT></FONT></DIV></SPAN></DIV></BLOCKQUOTE></BODY></HTML>