<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <meta content="text/html;charset=ISO-8859-1" http-equiv="Content-Type"> <title></title> </head> <body bgcolor="#ffffff" text="#000000"> Hi jan, ya i'm using 1.4alpha and problem is solved by commenting line 520 and 521. so now from local monitoring system it is giving proper output, but while checking through check_nrpe it is giving CHECK_NRPE: Received 0 bytes from daemon. check the remote server logs for error messages. and on remote server in /var/log/messages i had following error message .. Nov 25 09:00 host nrpe[9206]: Error: Request contained command arguments! Nov 25 09:00 host nrpe[9206]: Client request was invalid, bailing out... Any suggestigons / solutions regards linux admin Jan Scholten wrote: <blockquote cite="mid41A4FDD7.3050302@iconz.net" type="cite">Nilesh wrote: <blockquote type="cite">Hey evbdy, I'm getting difficulty in configuring check_mailq. while executing check_mailq it is giving o/p with with two additional unnecessary messages as mentioned below ----------- o/p of /usr/local/nagios/libexec/check_mailq -w 10 -c 12 ------------- Duplicate specification "Warning=i" for option "warning" Duplicate specification "Critical=i" for option "critical" OK: mailq is empty|unsent=0;10;12;0 --------------------------------------------------------------------------------- while viewing o/p through check_nrpe it is giving error of CHECK_NRPE: Error receiving data from daemon. which is due to two unnecessary lines in beginning of output .. pl guide me how to resolve it .. </blockquote> I think you use 1.4alpha? just comment out line 520 and 521 and it should work fine. Jan </blockquote> </body> </html>