Re: [Nagios-users] check_udp error message

2013-09-06 Thread Roger Bell_West
On Fri, Sep 06, 2013 at 01:44:06PM +0200, Marco Borsani wrote: >I already have read that wiki... OK, I'll try to explain in a different way. With a TCP-based service there's a standard handshake. You send a SYN, you get a SYN+ACK, you send an ACK; if that happens, the TCP port is open. (It may no

Re: [Nagios-users] check_udp error message

2013-09-03 Thread Andreas Ericsson
On 2013-09-03 12:33, Marco Borsani wrote: > Hi all > > I need to control many UDP ports. > > > > I run the command: > > ./check_udp –H –p 88 > > > > I receive following error message (with state UNKNOWN) : > > With UDP checks, a send/expect string must be specified > > > > Can anyone help me to so

[Nagios-users] check_udp error message

2013-09-03 Thread Marco Borsani
Hi all I need to control many UDP ports. I run the command: ./check_udp –H –p 88 I receive following error message (with state UNKNOWN) : With UDP checks, a send/expect string must be specified Can anyone help me to solve it? Those parameters should be optional.. regards Ma