[f-nsp] Root Shell on FastIron

[Hunter Fuller]

Some more tricks. These are done from the boot loader ('b' on boot):
 - 'setenv debug noautostart' - The box will not start FastIron OS and
will pause at a linux shell
 - 'setenv quiet' - This nulls-out the quiet setting so you see Linux
boot messages


--
Hunter Fuller
Router Jockey
VBH Annex B-5
+1 256 824 5331

Office of Information Technology
The University of Alabama in Huntsville
Network Engineering

On Tue, Oct 29, 2019 at 5:34 AM Franz Georg Köhler <lists at openunix.de> wrote:
>
> A while ago, I asked SE if it is possible to get Root Shell on FastIron
> for diagnosis.
> The answer was, that there is no possibility to connect low level.
>
> Finally, I found out that this is not true and there is a possibility:
>
> - Direct serial connection required
> - If this is a non-master stacked unit: dm mport-enable to enable the
>   management LAN port
> - go to OS mode with Ctrl+Y+M and Enter
> - Now IP address can be set:
>         OS>remote address 172.20.1.10 255.255.255.0
> - Gateway if needed:
>         OS>remote def 172.20.1.1
> - Start telnet server:
>         OS>telnetd start
> - Now you can connect via telnet to (additional and special) IP address
>   configured above. No authentication is taking place, root access.
>
>
>
>   Best regards,
>
>   Franz Georg Köhler
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