<HTML><HEAD> <META http-equiv=Content-Type content="text/html; charset=utf-8"> <META content="MSHTML 6.00.6000.16809" name=GENERATOR></HEAD> <BODY style="MARGIN: 4px 4px 1px; FONT: 10pt Tahoma"> <DIV>Murali,</DIV> <DIV> </DIV> <DIV>In the NSC.ini config file under [Settings] is the parameter called allowed_hosts=</DIV> <DIV> </DIV> <DIV>Is the IP address of your Nagios server in the list ?</DIV> <DIV>If so then do you have multiple IP addresses in this list, if you do then make sure that there are no spaces between the entries.</DIV> <DIV> </DIV> <DIV>Even when you get past this problem I found that check_nt didn't always return performance data, switch to check_nrpe if you want it to be reliable. It is slightly more complicated to use, but it is much more flexible after you get going.</DIV> <DIV><BR> </DIV> <DIV> </DIV> <DIV> </DIV> <DIV><FONT size=1><FONT face=Verdana><STRONG><FONT color=#da130e>Simon Finch </FONT><FONT color=#808080>|</FONT></STRONG><FONT color=#808080> <STRONG>ES</STRONG></FONT><FONT color=#808080><STRONG>M Specialist</STRONG></FONT></FONT></FONT><BR><FONT face=Arial color=#da130e size=1><FONT color=#808080><IMG height=33 alt="" src="cid:DUIVHVJEPPGD.IMAGE.xxx" width=87></FONT></FONT></DIV> <DIV><FONT face=Arial color=#da130e size=1><FONT color=#808080>Ground Floor, 4-16 Montgomery St, Kogarah NSW 2217</FONT></FONT></DIV> <DIV><FONT face=Arial color=#da130e size=1><FONT color=#808080><FONT face=Wingdings>(</FONT><FONT face=Arial color=#808080 size=1>+61 2 9952 2574 </FONT><FONT face="Wingdings 2" color=#808080 size=1>7</FONT><FONT color=#808080 size=1> </FONT><FONT face=Arial color=#808080 size=1>+61 412 256 814</FONT></FONT></FONT></DIV> <DIV><FONT face=Arial color=#da130e size=1><FONT color=#808080>Email: <A href="mailto:finchs@stgeorge.com.au">finchs@stgeorge.com.au</A><BR><A href="http://www.stgeorge.com.au/"><B><U><FONT face=Arial color=#808080 size=1>www.stgeorge.com.au</FONT></U></B></A><BR>______________________________________</FONT><BR><EM>St.George Bank IT - Good with people. Good with monitoring.</EM></FONT></DIV> <DIV><BR></DIV></BODY></HTML>