<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=Content-Type content="text/html; charset=iso-8859-1"> <META content="MSHTML 6.00.2716.2200" name=GENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=#ffffff> <DIV><FONT face=Arial size=2>Hello list,</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2> I'm trying to use "check_ifoperstatus" to check the serial interfaces on my router as well as some switches here. I checked all the plugins in the "/usr/local/nagios/libexec/" dir and everything is owned by nagios. I was even able to log in as the nagios user and execute the plugins. However, in the services.cfg file I have it hardcoded just to test as follows:</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>define command{<BR> command_name check_ifoperstatus_int1<BR> command_line $USER1$/check_ifoperstatus -k 2 -H xx.xx.xx.xx -C blah<BR> }</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>But, for some reason I keep checking the website and under the service problems I keep receiving "<FONT face="Times New Roman" size=3><TD class=statusBGCRITICAL></TD><TD class=statusBGCRITICAL>(Return code of 127 is out of bounds - plugin may be missing)". If I am able to run the command as the "nagios" user, why would the running daemon have a problem executing this command? Any insight would be very much appreciated. Thanks!</FONT></FONT></DIV> <DIV><FONT face=Arial size=2><FONT face="Times New Roman" size=3></FONT></FONT> </DIV> <DIV><FONT face=Arial size=2><FONT face="Times New Roman" size=3>- Jeff</TD></FONT></DIV> <DIV><BR></DIV></FONT></BODY></HTML>