0 bytes pin using check_ping

[Andy Shellam (Mailing Lists)]

Yep I see your problem.

One thing you could try, *note* I've not tried this so it may or may not 
be efficient, when you compile the Nagios plugins, add the following 
directive to ./configure:

--with-ping-command="/bin/ping -s 0 -n -U -w %d -c %d %s"

(ie. add the "-s 0" parameter to the ping plugin).

In theory this should compile check_ping with the near-0-byte ping 
command I ran manually earlier.
In practice, I don't know how you could check it's OK (unless you can 
monitor bandwidth manually, or notice really low RTAs compared to the 
64-byte command.)

Hope this helps some more!

Andy.

dhaval thakar wrote:
> Dear Andy,
>
> thanks for your reply,
> of course  practically I'll not get 0 byte ping.
>
> i need to monitor 200 branches over vsat,
> we have limited amount of bandwidth over vsat, this bandwidth is used 
> for our applications.
>
> i do not want to make 64 bytres ping for 200 branches, not even for 2 
> packets this will consume my 128bytes X 200 for ping. if i could use 0 
> byte ping consumption will drop down to 16bytes X 200.
>
> Secondly VSAT has latency of approx 600ms, this might not get me 
> proper host result if i ping onely once or twice.
>
> I tried with check_icmp,
> but the results in "check_icmp: Failed to obtain ICMP socket: 
> Operation not permitted".
> i used "chmod 777 check_icmp" but didn't worked out.
>
> Kindly help me if there any way to drop down ping bytes.
>
>
>
>> From: "Andy Shellam (Mailing Lists)" 
>> <andy.shellam-lists at mailnetwork.co.uk>
>> To: nagios-users at lists.sourceforge.net
>> Subject: Re: [Nagios-users] 0 bytes pin using check_ping
>> Date: Tue, 02 Jan 2007 14:13:33 +0000
>>
>> Why do you need to make a "0 byte" ping?  (I'm not particularly up on
>> networking, but a 0 byte ping would in theory send nothing, right?)
>>
>> Tried doing this on my Fedora system, and you still get a minimum of 8
>> bytes back:
>>
>> /bin/ping -s 0 www.google.com
>> PING www.l.google.com (216.239.59.99) 0(28) bytes of data.
>> 8 bytes from 216.239.59.99: icmp_seq=1 ttl=243
>>
>> The Nagios plugin doesn't seem to have a size parameter, so to limit
>> network traffic what you could do is only send 1 packet (in practice I
>> believe it will send 2 - one when it first runs the plugin, then another
>> to confirm the result - don't know why, but it's been bought to light on
>> the list toward the beginning of December.)
>>
>> Thus you would add "-p 1" to your check_ping command (or change the
>> current value of "-p" if it's already present) to only send 1 packet.
>>
>> Hope this helps.
>>
>> Andy.
>>
>>
>>
>> dhaval thakar wrote:
>> > Dear All,
>> >
>> > I want to monitor my VSAT branches using nagios,
>> > For that I need to make 0 bytes ping.
>> >
>> > Kindly suggest me how to ping 0 bytes useing check_ping plugin.
>> >
>> >
>> > Regards
>> > Dhaval
>> >
>> > _________________________________________________________________
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>>
>> -- 
>> Andy Shellam
>> NetServe Support Team
>>
>> the Mail Network
>> "an alternative in a standardised world"
>>
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>
> _________________________________________________________________
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>


-- 
Andy Shellam
NetServe Support Team

the Mail Network
"an alternative in a standardised world"

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m: +44 (0) 7818 000834


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