<div dir="ltr"><div dir="ltr"><div>Regarding serial ports - if you have IPMI then of course you have a virtual serial port.</div><div><br></div><div>I learned something new about serial ports and IPMI Serial Over LAN recently..</div><div>First of all you have to use the kernel config option console=ttyy0 console=ttyS1,115200</div><div>This is well known.</div><div><br></div><div>In the bad old days you had to edit the /etc/inittab and arrange a spawn of a getty process on /dev/ttyS1</div><div>One gotcha - /dev/ttyS1 usualy corresponds to serial port 0 in the BIOS. (I may have that work=g but there is a mismatch)</div><div><br></div><div>These days there is a service which is managed under system and will automatically detect and configure the serial terminal.</div><div>You still need the kernel console= option of course.</div><div>system enable serial-getty</div><div><br></div><div>The youth of today etc. Not having to solder up RS232 plugs and find the baud rate by listening to a modem...</div><div><br></div><div>Blog here on serial consoles in system <a href="http://0pointer.de/blog/projects/serial-console.html">http://0pointer.de/blog/projects/serial-console.html</a></div><div>I am genuinely impressed at how good this is - it worked first time on Debian system</div><div><br></div><div><br></div><div><br></div><div><br></div><div><br></div><div><br></div><div><br></div><div><br></div><div><br></div><div><br></div><div><br></div><div><br></div></div></div><br><div class="gmail_quote"><div class="gmail_attr" dir="ltr">On Fri, 14 Jun 2019 at 02:39, Robert G. Brown <<a href="mailto:rgb@phy.duke.edu">rgb@phy.duke.edu</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;padding-left:1ex;border-left-color:rgb(204,204,204);border-left-width:1px;border-left-style:solid">On Thu, 13 Jun 2019, Jonathan Engwall wrote:<br>
<br>
> I did not see Robert Brown's reply until J?rg Sa?manshausen quote the entire<br>
> thing.It's all gone now. I got rid of the netgear router too. My policies<br>
> are Drop and my rsa keys are specific. It works perfectly when nobody slips<br>
> in.<br>
> "Hang a console on it" this sound fscinationg. Consoles give me trouble.<br>
> I will read up on it.<br>
<br>
In the old days -- and I'm a relic of the old days;-) -- one did<br>
EVERYTHING from a console. Even now I do most of my systems work from a<br>
tty interface, basically an xterm.<br>
<br>
It's a lot harder to manage now, since serial ports are dead... if the<br>
particular problem you're trying to debug is the network...<br>
<br>
rgb<br>
<br>
> Thank you.<br>
> Jonathan Engwall.<br>
> <br>
><br>
<br>
Robert G. Brown <a href="http://www.phy.duke.edu/~rgb/" target="_blank" rel="noreferrer">http://www.phy.duke.edu/~rgb/</a><br>
Duke University Dept. of Physics, Box 90305<br>
Durham, N.C. 27708-0305<br>
Phone: 1-919-660-2567 Fax: 919-660-2525 <a href="mailto:email%3Argb@phy.duke.edu" target="_blank">email:rgb@phy.duke.edu</a><br>
<br>
<br>
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</blockquote></div>