Changes between Initial Version and Version 1 of sunsetpark_serial_access

Timestamp:

Oct 15, 2009, 10:35:40 PM (16 years ago)

Author:

Jamie McClelland

Comment:

--

sunsetpark_serial_access

@@ +1 @@
+[[PageOutline]]
+= How do I connect to an MF/PL server located at Sunset Park via the serial port? =
+
+Note: if you are trying to connect to a server in our XO/Bandcon, see [wiki:xo_serial_access our XO serial access page]; for Telehouse see [wiki:telehouse_serial_access Telehouse serial acess page].
+
+== Serial Console physical setup ==
+
+In Sunset Park we have an 8 port USB to serial adapter using the pl2303 chipset that is plugged into our office router (ida.mayfirst.org. They 8 ports are allocated:
+
+ * `ignatz` (Cable 1: ttyUSB0)
+ * `audre` (Cable 2: ttyUSB1)
+ * `melanie` (Cable 3: ttyUSB2)
+ * NOT IN USE (Cable 4: ttyUSB3)
+ * NOT IN USE (Cable 5: ttyUSB4)
+ * NOT IN USE (Cable 6: ttyUSB5)
+ * NOT IN USE (Cable 7: ttyUSB6)
+ * NOT IN USE (Cable 8: ttyUSB7)
+
+The serial consoles of the attached machines are all remotely accessible (to properly-authenticated people), and they are also logged and timestamped.  We are using [http://cmrg.fithhorseman.net/wiki/cereal cereal] to do this cleanly and easily.
+
+== How to connect ==
+
+In order to connect via serial console to one of the servers named above, ssh into `ida.mayfirst.org` as ''servername''`-console`
+
+For example:
+
+{{{
+ssh -t melanie-console@ida.mayfirst.org cereal attach melanie 
+}}}
+
+Would give you full read/write access to the console on `melanie`.
+
+The SSH RSA host key for `console.mayfirst.org` should have a fingerprint of:
+{{{
+a5:67:26:83:0d:43:2c:32:0a:c5:3e:5c:0a:8b:32:10
+}}}
+
+We can also setup additional users that have read-only access to the sessions created by each of these usernames, should that be desirable.  You can request such access by creating a [/newticket ticket].
+
+== Setting up a new console user ==
+
+To setup a new console user (this is something only admins can do), do the following as `root@ida`:
+
+{{{
+adduser --disabled-password --gecos='fred console user,,,' fred-console
+cereal-admin create fred /dev/ttyS15 115200 fred-console fred-console
+cereal-admin start fred
+}}}
+