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Full Discussion: ping by hostname not working
Top Forums UNIX for Advanced & Expert Users ping by hostname not working Post 302576225 by frappa on Thursday 24th of November 2011 03:58:35 AM
Old 11-24-2011
Hi,

config files seem ok.
Googling around it seems somebody also experienced similar issues; not clear if and how they cleared the problem though..

First thing you could try to exclude problems with the internal nameservers you are using.
If you can, try reproduce the problem by ping/nslookup to an external site (i.e.: www. google.com).
If the above can be done, try also to use some external dns server (i.e. opendns) and repeat the test against an external host (i.e. www. google.com again).

If you can execute the above tests and if the results of the above tests replay the problem already posted, we can exclude a problem with internal dns servers.


Next thing I could suggest is verifying the shared libraries used by nslookup and by ping:
this can be done by:
- looking for the full paths to nslookup and ping:
Code:
which nslookup
which ping

- then listing the shared libraries to check for problems:
Code:
ldd -v /path/to/nslookup
ldd -v /path/to/ping

and verifying that the required libraries are actually available (in particular, the libdns* and libresolv* ones).

I may also suggest the following forum:
Weird ping issue on redhat box - Page 2 - [H]ard|Forum
the user ScYcS experienced similar problem, you could contact her/him directly to kow if and how he cleared the issue.

see ya
fra

Last edited by frappa; 11-24-2011 at 04:59 AM.. Reason: removed urls to google.com, only string values needed
This User Gave Thanks to frappa For This Post:
 

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Wiki::Toolkit::Plugin::Ping(3pm)			User Contributed Perl Documentation			  Wiki::Toolkit::Plugin::Ping(3pm)

NAME
Wiki::Toolkit::Plugin::Ping - "ping" various services when nodes are written SYNOPSIS
use Wiki::Toolkit::Plugin::Ping; my $ping = Wiki::Toolkit::Plugin::Ping->new( node_to_url => 'http://mywiki/$node', services => { "geourl" => 'http://geourl.org/ping?p=$url' }, agent => "My Wiki ping agent", ); $wiki->register_pugin( plugin => $ping ); DESCRIPTION
A plug-in for Wiki::Toolkit sites, which will "ping" various external services when a node is written. A list of the services to ping, and where in their URLs to add the URL of the node, are supplied when the plugin is created. You need to tell it how to turn a node into a URL (node_to_url), and what services to ping (services). You can optionally pass a custom user-agent string AUTHOR
The Wiki::Toolkit team (http://www.wiki-toolkit.org/) COPYRIGHT
Copyright (C) 2003-2004 I. P. Williams (ivorw_openguides [at] xemaps {dot} com). Copyright (C) 2006-2009 the Wiki::Toolkit team (http://www.wiki-toolkit.org/) All Rights Reserved. This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself. SEE ALSO
Wiki::Toolkit, Wiki::Toolkit::Plugin, OpenGuides perl v5.10.1 2009-02-24 Wiki::Toolkit::Plugin::Ping(3pm)
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