Re: [PATCH] NTP protocol test

[Jan-Henrik Haukeland]

On Jan 25, 2005, at 12:40, Michel Marti wrote:

> SYN/ACK is part of TCP, so this cannot be used to test UDP 
> connectivity.

Yes, of course, a little hick up there.


>  Looking at the manpage of nmap, they describe their UDP scan like 
> this:
>
> "UDP  scans:  This method is used to determine which UDP ports are 
> open on a host. The technique is to send 0 byte UDP packets to each 
> port on the target machine. If we receive an ICMP port unreachable 
> message, then the port is closed. If a UDP response is received to the 
> probe (unusual), the port is open. If we get no response at all, the 
> state is "open|filtered", meaning that the port is either open or 
> packet filters are blocking the communication."
>
> I guess we could do the same in monit's UDP check!?!

Absolutely, you want to give it a stab :-)

--
Jan-Henrik Haukeland
Mobil +47 97141255