Re: [Nagios-users] Migrating to v3
Ciro Iriarte wrote: Hi, I'm migrating our v2.x installation of nagios to 3.0.3 and i'm stuck currently, can sameone check if i'm missing something here?: Verification reports: - Error: Service description, host name, or check command is NULL Error: Could not register service (config file '/etc/nagios/objects/services/filesystems.win.cfg', starting on line 1) - First lines of filesystems.win.cfg: - define service{ use filesystems hostgroup_name nrpe_nt service_description Unidad c:\ Nagios 3 supports line-continuation in configuration files. Remove the backslash at the end of this line and you'll be fine. -- Andreas Ericsson [EMAIL PROTECTED] OP5 AB www.op5.se Tel: +46 8-230225 Fax: +46 8-230231 - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/ ___ Nagios-users mailing list Nagios-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/nagios-users ::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. ::: Messages without supporting info will risk being sent to /dev/null
Re: [Nagios-users] Thoughts about a custom plugin
stan wrote: I have a number of isolated networks, that is networks which are deliberately non-routable to. On each of these networks, I have a single host that has a 2nd NIC thta is on the general network. I don't can't to turn on forwarding on this host. I would like to monitor some statuses on the machines on the isolated networks. I am thinking of doing this using a Nagios plugin. My first thoughts on this plugin are to have the plugin execute a script on the dual homed machines. This script would, as a first cut, ping the internal machines, and return up/down statuses. Later I might want too expand on this by having the script do some other checks on the isolated machines. Sounds like you'd be better off installing Nagios on each of the dual-homed servers and submitting the check-results passively up to the main monitoring machine. Actually, merlin would be a very nice candidate for this, although it's still in early beta. See http://www.op5.org/git/?p=nagios-merlin.git;a=summary -- Andreas Ericsson [EMAIL PROTECTED] OP5 AB www.op5.se Tel: +46 8-230225 Fax: +46 8-230231 - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/ ___ Nagios-users mailing list Nagios-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/nagios-users ::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. ::: Messages without supporting info will risk being sent to /dev/null
[Nagios-users] installation problem
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Hi, everybody i'm trying to install Nagios on Opensuse 11.0 and i get this message after ./configure in the config.log: . configure:3149: checking pthreads.h usability configure:3161: gcc -c -g -O2 conftest.c 5 conftest.c:68:22: error: pthreads.h: No such file or directory configure:3167: $? = 1 configure: failed program was: | /* confdefs.h. */ | | #define PACKAGE_NAME | #define PACKAGE_TARNAME | #define PACKAGE_VERSION | #define PACKAGE_STRING | #define PACKAGE_BUGREPORT | #define STDC_HEADERS 1 ... the make is not created Do you know what's the problem? Many thanks -BEGIN PGP SIGNATURE- Version: GnuPG v2.0.9 (GNU/Linux) Comment: Using GnuPG with SUSE - http://enigmail.mozdev.org iEYEARECAAYFAkiEV8oACgkQbG/s30EAZ3UcKgCdGr8Df+2409FkK0nGnFxi6zHE r4kAnjVMNQcKa0+YKnGj8Pk0igrcUbQE =8f4D -END PGP SIGNATURE- - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/ ___ Nagios-users mailing list Nagios-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/nagios-users ::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. ::: Messages without supporting info will risk being sent to /dev/null
Re: [Nagios-users] Thoughts about a custom plugin
This can be done without NRPE. We have a cluster on a private net. The head node is visible from nagios so I wrote a plugin that lives on the head node (The dual homed machine, in your case). On the nagios side, a plugin ssh'es to the head node, runs the script which talks to hosts on the private net and returns the output/status. On Sun, Jul 20, 2008 at 11:17 AM, stan [EMAIL PROTECTED] wrote: On Sun, Jul 20, 2008 at 10:46:39AM -0400, Paulus, Jake wrote: You should really look into NRPE (Nagios Remote Plugin Execution) http://nagios.sourceforge.net/docs/3_0/addons.html#nrpe There are alternate versions of NRPE that run on Windows, etc. if you must do that. Check out NagiosExchange.org for those. You should find that you can use normal plugins you already use elsewhere with NRPE to do what you need. I'm not certain this is intended for exactly the application I have. perhaps it is, and I am misunderstanding it. let me clarify my application a bit with an ASCI diagram: --- | | |||| | NAGIOS |--| DUAL || TARGET | | Host | | HOMED |---+|| | | | Machine| ||| | | || ||| - |-- | |-- ||| || TARGET | +|| ||| ||| |-- ~ The Nagios host can get to the dual homed machine, and I can use all the standard plugins to get status from it. What I want to do is get status from the TARGETS. Are you suggesting using NAPE running on the dual homed machines? And somehow using this to query the targets? The web page you pointed out makes me believe that NAPE is intended to allow me to execute checks on a reachable machine, by using local scripts there, rather than having the NAGIOS machine use the more traditional check_* plugins. Am I confused? -- One of the main causes of the fall of the roman empire was that, lacking zero, they had no way to indicate successful termination of their C programs. - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/ ___ Nagios-users mailing list Nagios-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/nagios-users ::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. ::: Messages without supporting info will risk being sent to /dev/null - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/ ___ Nagios-users mailing list Nagios-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/nagios-users ::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. ::: Messages without supporting info will risk being sent to /dev/null
Re: [Nagios-users] installation problem
On Jul 21, 2008, at 4:32 AM, Thierry Granier wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Hi, everybody i'm trying to install Nagios on Opensuse 11.0 and i get this message after ./configure in the config.log: . configure:3149: checking pthreads.h usability configure:3161: gcc -c -g -O2 conftest.c 5 conftest.c:68:22: error: pthreads.h: No such file or directory configure:3167: $? = 1 configure: failed program was: | /* confdefs.h. */ | | #define PACKAGE_NAME | #define PACKAGE_TARNAME | #define PACKAGE_VERSION | #define PACKAGE_STRING | #define PACKAGE_BUGREPORT | #define STDC_HEADERS 1 ... I this the end of config.log or just an error you found? -- Marc - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/ ___ Nagios-users mailing list Nagios-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/nagios-users ::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. ::: Messages without supporting info will risk being sent to /dev/null
Re: [Nagios-users] installation problem
Please always respond on list. Other comments below -- On Jul 21, 2008, at 7:39 AM, Thierry Granier wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Marc Powell a écrit : On Jul 21, 2008, at 4:32 AM, Thierry Granier wrote: configure:3149: checking pthreads.h usability configure:3161: gcc -c -g -O2 conftest.c 5 conftest.c:68:22: error: pthreads.h: No such file or directory ... I this the end of config.log or just an error you found? This is not the end of config/log it's an error in the file This is almost certainly not the problem as it is not necessary for this test to succeed. Please post the entire config.log. -- Marc - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/ ___ Nagios-users mailing list Nagios-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/nagios-users ::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. ::: Messages without supporting info will risk being sent to /dev/null
Re: [Nagios-users] Help - I am unable to send notifications
It was about time I changed the subject line of my e-mail since the NSClient++ service restart issue is fixed thanks to you guys. I am reposting this since my last e-mail on Friday which is at the bottom of this thread. I was hoping to verify the syntax of this command: sed -i '1s,.*,#!/usr/bin/perl -w,' check_sendmail.pl It returns this: sed: can't read check_sendmail.pl: No such file or directory Thank you, Jon From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Jonathan Williams Sent: Friday, July 18, 2008 5:08 PM To: Anthony Montibello Cc: nagios-users@lists.sourceforge.net Subject: Re: [Nagios-users] Help - I am unable to get theNSClient++ torestart services From: Anthony Montibello [mailto:[EMAIL PROTECTED] Sent: Friday, July 18, 2008 4:21 PM To: Jonathan Williams Cc: nagios-users@lists.sourceforge.net Subject: Re: [Nagios-users] Help - I am unable to get theNSClient++ to restart services Jonathan Williams wrote: I did (at least similar). I ran it and it returned: /usr/local/bin/pearl -w I'm guessing the output was actually #! /usr/local/bin/perl -w which is quite different from what you wrote, but I'll have to assume that the output you gave me is actually correct (who in their right minds would give false info to someone who's trying to help them??), so here it goes: * There's your error right there. To begin with, you probably don't have a binary named pearl anywhere on your system. * There's #! in front of the name of the script interpreter, so the kernel has no idea what to do with it. Run this command and it'll magically start working: sed -i '1s,.*,#!/usr/bin/perl -w,' check_sendmail.pl Note that similar hardly ever cuts it, especially if you want more help and don't paste the similar command you actually used along with the output it produced. copy-paste is your friend. -- Andreas Ericsson [EMAIL PROTECTED] OP5 AB www.op5.se http://www.op5.se/ Tel: +46 8-230225 Fax: +46 8-230231 Got it...as far as the top posting goes...makes sense. Thanks. And yes there was a #! In front as you said. I did say similar just because the OP who was helping me said I would get something similar to #!/usr/bin/perl args-to-perl. My output was similar to that, but not exact. Thanks for the response. I ran the following: sed -i '1s,.*,#!/usr/bin/perl -w,' check_sendmail.pl return: sed: can't read check_sendmail.pl: No such file or directory I been following your Emails on this issue and it looks like this must be some simple mistake somewhere, for example runtime Libexec is not the directory your using, FIlemames mispellings, things missing from the path or some other unkown issue. Try running some normal shell script that just gives a date or pwd to validate the Libexec directory you are copying files to is the one nagios is run from. In the above command was it suppose to be sendmail.pl instead of check_sendmail.pl ? (I am not sure I did not think hard about what the command does) but most of the prior emails mentioned only sendmail.pl while check_ is common prefix of most common nagios plugins. Last in prior posts I noticed the -n in the command has a space between the - and the n is it really there or is it just my email reader? if it is there should it be there? Tony (Author of NC_net) (I actually prefer reading Top posted msg - but I understand Andreas point on Bottom posting or inline posting) Good question Tony. There is no such file called check_sendmail on my system. Other scripts are running fine out of /usr/local/nagios/libexec. I am not sure if perhaps the send_mail.pl script is perhaps looking for the pearl binary in the wrong folder /usr/bin/perl as opposed to /usr/local/bin/perl? I am not at work now but will dig in later tonight. I am a victim of my own lack of Linux experience here I admit, but I'm learning. I have a feeling if any of you were looking at everything I have here it would jump out at you. I'm going to team up with a colleague of mine here who is a good Linux guy and get his input as well. As usual thanks again for your time and expertise. Jon - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world
Re: [Nagios-users] Thoughts about a custom plugin
Hi, NRPE could do this job, sure you could write a custom plugin, but there are 2 possible alternatives already there (albeit they might be overhead for what you're trying to do, unless you want to monitor the services on the dual-homed machine with Nagios as well.) You could run NRPE on each target, and on the dual-homed machine, then Nagios would request the plugin to be executed on the targets and send the request via NRPE to the dual-homed machine, which would in turn request the plugin to be run on the appropriate host. I do a similar thing to ping a router that cannot be reached from my Nagios machine, but can from one of the servers being monitored by Nagios. e.g. Nagios -- check_nrpe -- asks dual-homed to check disk space on target1 -- check_nrpe -- dual-homed asks target1 to check diskspace -- check_disk -- DISK: OK I have a feeling, however, that NCSA might be a more appropriate tool for this task, but I have no experience of it. From what I understand, I believe it would be possible to run NRPE on the targets, use NCSA on the dual-homed host to execute the plugins on the targets via NRPE and submit the results to Nagios. Hope this gives you some food for thought! Regards, Andy dave stern - e-mail.pluribus.unum wrote: This can be done without NRPE. We have a cluster on a private net. The head node is visible from nagios so I wrote a plugin that lives on the head node (The dual homed machine, in your case). On the nagios side, a plugin ssh'es to the head node, runs the script which talks to hosts on the private net and returns the output/status. On Sun, Jul 20, 2008 at 11:17 AM, stan [EMAIL PROTECTED] wrote: On Sun, Jul 20, 2008 at 10:46:39AM -0400, Paulus, Jake wrote: You should really look into NRPE (Nagios Remote Plugin Execution) http://nagios.sourceforge.net/docs/3_0/addons.html#nrpe There are alternate versions of NRPE that run on Windows, etc. if you must do that. Check out NagiosExchange.org for those. You should find that you can use normal plugins you already use elsewhere with NRPE to do what you need. I'm not certain this is intended for exactly the application I have. perhaps it is, and I am misunderstanding it. let me clarify my application a bit with an ASCI diagram: --- | | |||| | NAGIOS |--| DUAL || TARGET | | Host | | HOMED |---+|| | | | Machine| ||| | | || ||| - |-- | |-- ||| || TARGET | +|| ||| ||| |-- ~ The Nagios host can get to the dual homed machine, and I can use all the standard plugins to get status from it. What I want to do is get status from the TARGETS. Are you suggesting using NAPE running on the dual homed machines? And somehow using this to query the targets? The web page you pointed out makes me believe that NAPE is intended to allow me to execute checks on a reachable machine, by using local scripts there, rather than having the NAGIOS machine use the more traditional check_* plugins. Am I confused? -- One of the main causes of the fall of the roman empire was that, lacking zero, they had no way to indicate successful termination of their C programs. - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/ ___ Nagios-users mailing list Nagios-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/nagios-users ::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. ::: Messages without supporting info will risk being sent to /dev/null - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world
[Nagios-users] Monitor log file for inactivity?
How would you use nagios to monitor a log file for inactivity? I was looking at the check_file_age plugin and thought it might work for this purpose. - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/ ___ Nagios-users mailing list Nagios-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/nagios-users ::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. ::: Messages without supporting info will risk being sent to /dev/null
Re: [Nagios-users] Migrating to v3
2008/7/21 Andreas Ericsson [EMAIL PROTECTED]: Ciro Iriarte wrote: Hi, I'm migrating our v2.x installation of nagios to 3.0.3 and i'm stuck currently, can sameone check if i'm missing something here?: Verification reports: - Error: Service description, host name, or check command is NULL Error: Could not register service (config file '/etc/nagios/objects/services/filesystems.win.cfg', starting on line 1) - First lines of filesystems.win.cfg: - define service{ use filesystems hostgroup_name nrpe_nt service_description Unidad c:\ Nagios 3 supports line-continuation in configuration files. Remove the backslash at the end of this line and you'll be fine. -- Andreas Ericsson [EMAIL PROTECTED] OP5 AB www.op5.se Tel: +46 8-230225 Fax: +46 8-230231 Thanks to both of you, that was the issue, I had to add \\ instead and it worked! Regards, Ciro - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/ ___ Nagios-users mailing list Nagios-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/nagios-users ::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. ::: Messages without supporting info will risk being sent to /dev/null
Re: [Nagios-users] Thoughts about a custom plugin
On Sun, Jul 20, 2008 at 11:17:16AM -0400, stan wrote: On Sun, Jul 20, 2008 at 10:46:39AM -0400, Paulus, Jake wrote: You should really look into NRPE (Nagios Remote Plugin Execution) http://nagios.sourceforge.net/docs/3_0/addons.html#nrpe There are alternate versions of NRPE that run on Windows, etc. if you must do that. Check out NagiosExchange.org for those. You should find that you can use normal plugins you already use elsewhere with NRPE to do what you need. I'm not certain this is intended for exactly the application I have. perhaps it is, and I am misunderstanding it. let me clarify my application a bit with an ASCI diagram: Yeah; you have a non-routing dual homed machine on the edge of the LAN. You can use NRPE to monitor both the machine you install it on, and, with more careful configuation, any other machine it can talk to. So you should be able to use NRPE on the dual-home as an application gateway to let your Nagios console monitor all the machines at the remote site. Note, of course, that depending solely on non-routeability in the kernel to isolate that LAN isn't good enough; I presume you're a) also doing other stuff and b) smart enough not to tell us what that is. :-) Cheers, -- jra -- Jay R. Ashworth Baylink [EMAIL PROTECTED] Designer The Things I Think RFC 2100 Ashworth Associates http://baylink.pitas.com '87 e24 St Petersburg FL USA http://photo.imageinc.us +1 727 647 1274 Those who cast the vote decide nothing. Those who count the vote decide everything. -- (Josef Stalin) - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/ ___ Nagios-users mailing list Nagios-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/nagios-users ::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. ::: Messages without supporting info will risk being sent to /dev/null
Re: [Nagios-users] Monitor log file for inactivity?
On Jul 21, 2008, at 1:58 PM, Sean Carolan wrote: How would you use nagios to monitor a log file for inactivity? I was looking at the check_file_age plugin and thought it might work for this purpose. It all depends on how the application writes to a log file. Simply checking the log file for age or size might not determine if the application is running accurately. If you are sure you want to check the log file for age you will first have to figure out if the log file is stored on the local monitoring machine or a remote machine. If it is the local machine you can simply create a new command with the check_file_age plugin and define a service for the local machine to use. Otherwise if it is a remote machine you are going to need to run the plugins using NRPE ( http://www.nagios.org/download/addons/ ) or by SSH ( via plugin check_by_ssh ); for those you are going to need to nagios plugins compiled on the remote machine. For a local check you could use something like the following in your commands.cfg and then add it as a service to your local box: # 'check_file_age' command definition define command{ command_namecheck_file_age command_line$USER1$/check_file_age -w $ARG1$ -c $ARG2$ -f $ARG3$ # $ARG3$ is the full path to the log file. } Or you might want to look on nagiosexchange.com to see if there is a plugin created specifically for the program you are trying to check. I would start by testing the plugins from the command line. eg. /path/to/check_file_age -h (for help) /path/to/check_file_age -w 100 -c 1000 -f /path/to/logfile I hope this helps! Mark Young ___ Nagios Enterprises, LLC Web:www.nagios.com - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/ ___ Nagios-users mailing list Nagios-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/nagios-users ::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. ::: Messages without supporting info will risk being sent to /dev/null
[Nagios-users] read write error in checkresults
Hello Nagios :) I have finished my first instaltion two days back and I thought every thing is normal . In the morning I checked the message log and found ton of read/wright permision errors like this and this was only for ping check commands. Jul 21 22:03:08 nagios kernel: audit(1216702988.048:263963): avc: denied { read write } for pid=13027 comm=ping path=/usr/local/nagios/var/spool/checkresults/checkehZYV1 dev=hda3 ino=5201483 scontext=root:system_r:ping_t:s0 tcontext=root:object_r:usr_t:s0 tclass=file Jul 21 22:03:32 nagios kernel: audit(1216703012.212:263964): avc: denied { read write } for pid=13031 comm=ping path=/usr/local/nagios/var/spool/checkresults/checkaJbTU8 dev=hda3 ino=5201483 scontext=root:system_r:ping_t:s0 tcontext=root:object_r:usr_t:s0 tclass=file Folder permission drwxr-xr-x 2 nagios nagios 20480 Jul 21 22:13 checkresults My ping Check command: $USER1$/check_ping -H $HOSTADDRESS$ -w $ARG1$ -c $ARG2$ -p 5 Aruguments check_ping!1000.0,40%!3000.0,80% Forgive me if it is some basic error/stuff and thank you very much for your help. Kind Regards Gilbert Samson - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/___ Nagios-users mailing list Nagios-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/nagios-users ::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. ::: Messages without supporting info will risk being sent to /dev/null