Re: daemon-problems

[simos@athena.teiath.gr]

On Mon, 23 Feb 1998, Martin Joachim Wolf wrote:

> I'm trying to set up a diskless linux client, but I've got some problems
> with the daemons. I tested booting with the "netboot-patched floppy", and
> the client seems to send his requests.
> But I cannot detect any reactions of the server.
> I installed  NFS, exported the important directories (okay, I'm also new
> on NFS, so this could be another problem, but this should appear later!
> ;-)))  ), and set up the bootpd.
> But I could  not detect him working; I started it "by hand" - even
> twice at the same time - no reaction.
> And then tftpd: in  /etc/services  tftp seems to be provided (SuSE 4.4.1):
> Do I also have to install the tftpd? And how? (Step-by-step?)
> And I couldn't even find tftpd at  sunsite's :-(((
> 
> Is there a possibility to controll the network? (I'd like to know whether
> the requests of the client reach the server or not)
Hi!
	I will give you generic advice on how to check whether the
server/client send the correct packets.
	There are some "packet analysers", programs that grab all the
packets from the ethernet wire and output them on screen. These programs
do some basic analysis, so you know what each packet does.
	Thus,
		there is "tcpdump" (unix).
		You may run it like "tcpdump ip host myserver.domain.gr",
		and it will output the packets that contain "myserver"
		as source or destination. 
		(you do that to filter reduntat traffic).	
		
		there is "snoop" for solaris 2.x (from sun.com for sunos
4.x)
		I just found snoop better in the tftp protocol analysis
		on a certain occasion.
	
	You need root access for both.

Simos KSenitellis