Problem with ping/telnet

[David A. Gatwood]

On Tue, 5 Feb 2002, murali nagarajan wrote:

> - PING command does not work
>   The erro message I get is   "ping: unknown protocol icmp"

Don't know.  Might be a kernel compile issue or something, or it might be
related to the second issue.  Not sure.


> - Telnet program does not work which tells me that the service is unknown.
>    The error message I get is "telnet: tcp/telnet: unknown service"

This one's easy.  Telnet explicitly asks the system for the default port
number for telnet service.  If you don't have a valid /etc/services file
(with telnet listed), it won't be able to do so, and it will fail.  If you
specify a port number by hand (e.g. telnet foo.com 23), it should work.
Or you can just put in an /etc/services file.


Later,
David

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