Permissions Error (Could not stat() comman d file )
Chris Losch
Chris.Losch at newham.gov.uk
Tue Dec 10 14:13:03 CET 2002
It would seem I'm paying for running on the b-leading-edge again.
Unless anyone has got Nagios successfully working on RH 8 and APACHE 2,
looks like i'm going to revert to RH7.3 and Apache 1.3.
I can't see anything wrong with the setup, yet it doesn't work.
The last thing I'm going to attempt is running a STRACE on httpd and nagios,
as suggested by Greg Potter, to see if i can spot anything in there... if
not.. well... 1st things 1st.
Will post an update after lunch (hey, we have to have priorities!)
Chris
-----Original Message-----
From: Pascal Miquet [mailto:p.miquet at hafiba.fr]
Sent: 10 December 2002 10:00
To: Chris Losch
Cc: 'Jon Lyons'; 'nagios-users at lists.sourceforge.net'
Subject: RE: [Nagios-users] RE: Permissions Error (Could not stat()
comman d file )
For me on a RH8.0,
APACHE 2.0.40-8
Nagios 1.0
Plugins 1.3 beta 2
I've got on the process info section:
It appears as though Nagios is not running, so commands are temporarily
unavailable...
And according to Execution command, I can't commit specified commands.
Seems to be a CGI authentication.
Note that the previous version is running fine on my laptop with RH7.3
Regards
Le lun 09/12/2002 à 18:05, Chris Losch a écrit :
> Jon,
> I am 99% sure, (from what I read in the ps -ef output, and httpd.conf)
>
> Relevant part from httpd.conf
> ------------------------------------------
> # If you wish httpd to run as a different user or group, you must run
> # httpd as root initially and it will switch.
> #
> # User/Group: The name (or #number) of the user/group to run httpd as.
> # . On SCO (ODT 3) use "User nouser" and "Group nogroup".
> # . On HPUX you may not be able to use shared memory as nobody, and the
> # suggested workaround is to create a user www and use that user.
> # NOTE that some kernels refuse to setgid(Group) or semctl(IPC_SET)
> # when the value of (unsigned)Group is above 60000;
> # don't use Group #-1 on these systems!
> #
> User apache
> Group apache
>
>
> I've even tried changing Group to 'nagiocmd', no luck with that either.
>
> NOTE This is APACHE 2 as supplied by REDHAT 8 CD's
> Server version: Apache/2.0.40
>
> Thanks for your suggestion anyway,
>
> I'm starting to wonder if this is an issue with Nagios on Apache2, has
> anyone else got this working successfully?
>
> Chris
>
> -----Original Message-----
> From: Jon Lyons [mailto:jlyons30 at yahoo.com]
> Sent: 09 December 2002 15:28
> To: Chris Losch; 'Terry Inzauro'
> Cc: 'nagios-users at lists.sourceforge.net'
> Subject: Re: [Nagios-users] RE: Permissions Error (Could not stat()
command
> file )
>
>
>
> Are you sure apache is running as "apache" and not "www"?
>
>
> Chris Losch <Chris.Losch at newham.gov.uk> wrote:
>
>
> Change of Subject line, things were getting confused....
> ----
>
>
> It was worth a try, still didnt work though *sigh*
>
> Just in case I'm missing something.
>
> ls -la /usr/local/nagios/var/rw
> -----------------------------------------
> total 8
> drwxrwS--- 2 nagios nagiocmd 4096 Dec 6 17:20 .
> drwxrwxr-x 4 nagios nagios 4096 Dec 9 14:37 ..
> prw-rwx--- 1 nagios nagiocmd 0 Dec 6 17:20 nagios.cmd (after
> chmod'ing with Terry Inzauro's suggestion - see below, default group perms
> are rw-)
>
> /etc/group (relevant bits)
> ----------------
> apache:x:48:
> nobody:x:99:
> nagios:x:500:
> nagiocmd:x:501:nagios,nobody,apache
>
> ps -ef | grep httpd output
> -------------------------
> root 10311 1 0 Dec06 ? 00:00:02 /usr/sbin/httpd
> apache 14958 10311 0 14:28 ? 00:00:00 /usr/sbin/httpd
> apache 14959 10311 0 14:28 ? 00:00:00 /usr/sbin/httpd
> apache 14960 10311 0 14:28 ? 00:00:00 /usr/sbin/httpd
> apache 14961 10311 0 14:28 ? 00:00:00 /usr/sbin/httpd
> apache 14962 10311 0 14:28 ? 00:00:00 /usr/sbin/httpd
> apache 14963 10311 0 14:28 ? 00:00:00 /usr/sbin/httpd
> apache 14964 10311 0 14:28 ? 00:00:00 /usr/sbin/httpd
> apache 14965 10311 0 14:28 ? 00:00:00 /usr/sbin/httpd
> apache 15022 10311 0 14:28 ? 00:00:00 /usr/sbin/httpd
> root 16310 15956 0 14:34 pts/3 00:00:00 grep httpd
>
> ps -ef | grep nagios
> ---------------------------
> nagios 8504 1 0 Dec06 ? 00:03:52
/usr/local/nagios/bin/nagios
> -d
> (lots, but all the same)
>
> I'm not wrong in thinking that the httpd is running under the APACHE user,
> am I?
>
> Thanks
> Chris
>
>
> -----Original Message-----
> From: Terry Inzauro [mailto:tinzauro at axiomintegration.com]
> Sent: 06 December 2002 19:27
> To: Chris Losch
> Subject: RE: [Nagios-users] RE: Permissions Error
>
>
> I think the nagios user,the apache user need to have write access rwx
access
> to that file. make sure that each of the respective users have the
> necessary perms. or just add the nagios user to the group owner in the
> /etc/group file.
>
> worth a try?
>
> Terry Inzauro
>
>
> On Fri, 2002-12-06 at 11:31, Chris Losch wrote:
>
> I'm afraid its a case of been there, done that...
>
> but just in case I did something wrong, I tried again...
>
> Stopped Nagios and $INSTALLPATH/var/rw/nagios.cmd disappeared (as it
should
> - see I even tried reading the manual :-D )
> Used the /etc/rc.d/init/nagios script to start it,
> $INSTALLPATH/var/rw/nagios.cmd re-appears with the default permissions
>
> prw-rw---- 1 nagios nagiocmd 0 Dec 6 17:20 nagios.cmd
>
> CHMOD'd 777 it, still receiving the same error when attempting the
command.
>
> Have even tried restarting the httpd :( which runs under the 'apache'
user,
> which is part of the nagiocmd group.
>
> Incidently the parent (rw) directory has the permissions,
>
> drwxrwS--- 2 nagios nagiocmd 4096 Dec 6 17:20 rw
>
> Maybe someone will spot where im going wrong.
> Anyway, have a good weekend all.
> Chris
>
> -----Original Message-----
> From: Terry Inzauro [mailto:tinzauro at axiomintegration.com]
> Sent: 06 December 2002 15:12
> To: Chris Losch
> Cc: nagios-users at lists.sourceforge.net
> Subject: RE: [Nagios-users] RE: Permissions Error
>
>
> I cam across the same error once. If there was a nagios process running,
> kill it. If there is a $INSTALLPATH/var/rw/nagios.cmd file, delete it.
> Next, start nagios with the /etc/rc.d/init/nagios script. Then try the
> request again. If does the same thing. try chmodddddding the
> $INSTALLPATH/var/rw/nagios.cmd file for something like 777, then work it
> backwards from there.
>
> Terry Inzauro
>
>
> On Fri, 2002-12-06 at 06:41, Chris Losch wrote:
>
> FYI,
>
> I have just built up a clean install of Redhat 8, and Nagios1.0
> I have got Authentication setup and working ok (I can view cgi's), however
I
> am unable to send commands from the Web Pages to Nagios (Scheduling Checks
> etc.)
>
> I am recieving the error
>
> Error: Could not stat() command file
> '/usr/local/nagios/var/rw/nagios.cmd'!
> The external command file may be missing, Nagios may not be running,
> and/or Nagios may not be checking external commands.
>
> An error occurred while attempting to commit your command for
processing.
> :(
>
> If possible I would suggest you backup the config CGI's (hosts services
etc)
> and start over, it seems to be easier than troubleshooting.
>
> Chris... yup another Chris.
>
> Just for reference I've included the bits below so you can cross reference
> your config files.
>
> cgi.cfg
> -------
> authorized_for_system_information=xxxx,nagiosadmin,
> authorized_for_system_commands=xxxx,nagiosadmin,
> authorized_for_configuration_information=xxxx,nagiosadmin,
> authorized_for_all_hosts=xxxx,nagiosadmin,
> authorized_for_all_host_commands=xxxx,nagiosadmin,
> authorized_for_all_services=xxxx,nagiosadmin,
> authorized_for_all_service_commands=xxxx,nagiosadmin,
>
> .htaccess (in /usr/local/nagios/share/ and /usr/local/nagios/sbin/)
> ---------
> AuthName "Nagios Access"
> AuthType Basic
> AuthUserFile /usr/local/nagios/etc/htpasswd.users
>
> /usr/local/nagios/etc/htpasswd.users
> ------------------------------------
> nagiosadmin:<encrypted>
>
> /etc/httpd/conf/httpd.conf (added the following, otherwise, no changes
from
> default)
> --------------------------
> ScriptAlias /nagios/cgi-bin/ /usr/local/nagios/sbin/
> <Directory "/usr/local/nagios/sbin/">
> AllowOverride AuthConfig
> Options ExecCGI
> Order allow,deny
> Allow from all
> </Directory>
>
> Alias /nagios/ /usr/local/nagios/share/
> <Directory "/usr/local/nagios/share">
> Options None
> AllowOverride AuthConfig
> Order allow,deny
> Allow from all
> </Directory>
>
> /etc/local/nagios/etc/contacts.cfg
> ----------------------------------
> define contact {
> contact_name nagiosadmin
> alias Nagios Admin
> service_notification_period 24x7
> host_notification_period 24x7
> service_notification_options w,u,c,r
> host_notification_options d,u,r
> service_notification_commands notify-by-email,notify-by-epager
> host_notification_commands host-notify-by-email,host-notify-by-epager > email nagios-admin at localhost.localdomain
> pager pagenagios-admin at localhost.localdomain
> }
>
> /etc/local/nagios/etc/nagios.cfg
> ---------------------------------
> #
> # nagios.cfg - Config file for Nagios (www.nagios.org)
> #
> # Written by Nagat. Manually editing this file is a bad idea since Nagat
> will
> # overwrite it. Delete the nagatobj.dat file in the nagios/etc directory
to
> # reread the Nagios configuration.
> #
> log_file=/usr/local/nagios/var/nagios.log
> cfg_file=/usr/local/nagios/etc/checkcommands.cfg
> cfg_file=/usr/local/nagios/etc/misccommands.cfg
> cfg_file=/usr/local/nagios/etc/contactgroups.cfg
> cfg_file=/usr/local/nagios/etc/contacts.cfg
> cfg_file=/usr/local/nagios/etc/dependencies.cfg
> cfg_file=/usr/local/nagios/etc/escalations.cfg
> cfg_file=/usr/local/nagios/etc/hostgroups.cfg
> cfg_file=/usr/local/nagios/etc/hosts.cfg
> cfg_file=/usr/local/nagios/etc/services.cfg
> cfg_file=/usr/local/nagios/etc/timeperiods.cfg
> resource_file=/usr/local/nagios/etc/resource.cfg
> status_file=/usr/local/nagios/var/status.log
> nagios_user=nagios
> nagios_group=nagios
> check_external_commands=1
> command_check_interval=-1
> command_file=/usr/local/nagios/var/rw/nagios.cmd
> comment_file=/usr/local/nagios/var/comment.log
> downtime_file=/usr/local/nagios/var/downtime.log
> lock_file=/usr/local/nagios/var/nagios.lock
> temp_file=/usr/local/nagios/var/nagios.tmp
> log_rotation_method=d
> log_archive_path=/usr/local/nagios/var/archives
> use_syslog=1
> log_notifications=1
> log_service_retries=1
> log_host_retries=1
> log_event_handlers=1
> log_initial_states=0
> log_external_commands=1
> log_passive_service_checks=1
> inter_check_delay_method=s
> service_interleave_factor=s
> max_concurrent_checks=0
> service_reaper_frequency=10
> sleep_time=1
> service_check_timeout=60
> host_check_timeout=30
> event_handler_timeout=30
> notification_timeout=30
> ocsp_timeout=5
> perfdata_timeout=5
> retain_state_information=1
> state_retention_file=/usr/local/nagios/var/status.sav
> retention_update_interval=60
> use_retained_program_state=0
> interval_length=60
> use_agressive_host_checking=0
> execute_service_checks=1
> accept_passive_service_checks=1
> enable_notifications=1
> enable_event_handlers=1
> process_performance_data=0
> obsess_over_services=0
> check_for_orphaned_services=0
> check_service_freshness=1
> freshness_check_interval=60
> aggregate_status_updates=1
> status_update_interval=15
> enable_flap_detection=0
> low_service_flap_threshold=5.0
> high_service_flap_threshold=20.0
> low_host_flap_threshold=5.0
> high_host_flap_threshold=20.0
> date_format=euro
> illegal_object_name_chars=`~!$%^&*|'"<>?,()=
> illegal_macro_output_chars=`~$&|'"<>
> admin_email=nagios
> admin_pager=pagenagios
>
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