<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=us-ascii"> <meta name="Generator" content="Microsoft Exchange Server">  <style></style> </head> <body> <font face="Calibri, sans-serif" size="2"> <div>Hi,</div> <div> </div> <div>I have Nagios installed on Ubuntu 8.04 running on Vmware Vsphere and Centos 5.4 running on IBM hs20 blade.</div> <div>Both are identical setup and they are checking same servers.</div> <div> </div> <div>But for some reason in centos almost half of the checked host are flapping at any given time (40 host to check)</div> <div>Biggest difference between this environments is that Ubuntu is using Nagios 3.0.6 and centos 3.2.1.</div> <div> </div> <div>Have any of you noted similar behavior ?</div> <div> </div> <div>I followed this guide when installing nagios to centos:</div> <div><a href="http://docs.cslabs.clarkson.edu/wiki/Install_Nagios_on_CentOS_5"><font color="#0000FF"><u>http://docs.cslabs.clarkson.edu/wiki/Install_Nagios_on_CentOS_5</u></font></a></div> <div> </div> <div>And for some reason I can’t stop nagios service in the Centos:</div> <div>/etc/init.d/nagios stop</div> <div>nagios (pid 2647) is running...</div> <div>Stopping nagios: [FAILED]</div> <div> </div> <div>Or restart:</div> <div>/etc/init.d/nagios restart</div> <div>Stopping nagios: [FAILED]</div> <div>Starting nagios:</div> <div> </div> <div>Restart via nagios.cmd works. Any idea why this is happening ?</div> <div> </div> <ul style="margin-top: 0pt; margin-bottom: 0pt; margin-left: 36pt; "> <li>Kimmo</li></ul> <div> </div> <div> </div> <div> </div> <div> </div> <div> </div> <div> </div> <div> </div> <div> </div> <div> </div> <div> </div> </font> </body> </html>