No telnet from LAN into RH7.1 box
 

Hi

We have a problem telneting into our RH7.1 box from M$ boxen on the LAN.

We can ping the linux server from the LAN so no IP addressing problems

telnet to 127.0.0.1 or 10.0.0.2 (IP of eth0) from the linux box is OK, so the telnet server is installed, running and listening.

telnet to 10.0.0.2 from the LAN times out.

hosts.allow and hosts.deny are both blank

there is no firewall installed / enabled

Where else can I look? Do I need to enable IP forwarding to allow incoming telnet?

[I know that telnet is not recommended but we can't install 3rd party software on the M$ boxen, and its over the LAN - who cares?]

TIA

Mark Bleyerveld

- Are you really sure it's the RH box being pinged?
- Can other service (eg web server) be accessed from the Winbox?

> - Are you really sure it's the RH box being pinged?

Will switch off the RH box and try the ping again. I guess there *could* be another machine with the same IP on the LAN responding to the pings.

> - Can other service (eg web server) be accessed from the Winbox?

No other services running to test. I will try turning on sshd, install putty on one of the winboxen, and try a ssh session as a test.

Will post again when I get more info
(it's 2am here and it will have to wait until tomorrow)

Mark

> - Are you really sure it's the RH box being pinged?

Yes it is definitely the RH box that is being pinged. Shutdown and watched the pings stop responding; started up again and the pings started too.

> - Can other service (eg web server) be accessed from the Winbox?

Still haven't tried this.

I seem to remember that there was a master config file someplace where you had to put "networking = yes" or "server = yes" or something like that to enable any services to be accessible from the network. Particularly if you picked "workstation" when installing RH (I wasn't around when this one was installed)

Any ideas?

TIA

Mark Bleyerveld

Can you show your netstat output?
This is unlikely, but...is there a firewall on the CLIENT end that blocks outbound telnet connections?

You might want to try netcat if you have it installed instead of running a full server:

on the server:
nc -l -p 12345 < anyfile.txt

on the client:
nc 10.0.0.2 12345

you should see a dump off the file on the client.