Coprocessor Testbed


Some documentation on the ongoing work at the Coprocessor Testbed.

Access to servers

How to access acctb01 (GIGABYTE server) outside CERN

1) lxplus login

ssh <CERN USERNAME>@lxplus.cern.ch

2) lbgw login

ssh <ONLINE USERNAME>@lbgw

3) acctb01 login

ssh <ONLINE USERNAME>@acctb01

How to access daqv0207 (ASROCK server) outside CERN

1) lxplus login

ssh <CERN USERNAME>@lxplus.cern.ch

2) lbgw login

ssh <ONLINE USERNAME>@lbgw

3) daqv0207 login

ssh <ONLINE USERNAME>@daqv0207

How to access IPMI panel of ASROCK server

1) If outside CERN network, open a terminal and create the following tunnel

ssh -L 2123:lbgw:22 lxplus.cern.ch -l<CERN USERNAME>

2) Open a second terminal to create another tunnel

ssh -L 8000:daqv0207-ipmi.lbdaq.cern.ch:80 localhost -p2123 -l<ONLINE USERNAME>

3) Open the browser and go to

http://localhost:8000

4) Enter login credentials

user: rtawp6
password: ASK OR OPEN A TICKET

1-CERN) If at CERN, where lbgw is reachable, simply start the tunnel at 2) and not 1) by doing

ssh -L 8000:daqv0207-ipmi.lbdaq.cern.ch:80 lbgw -l<ONLINE USERNAME>

Syntax:
ssh -L to create a ssh tunnel
xxxx:remotehost:yyyy traffic at xxxx port of localhost redirected to port yyyy of remotehost via the tunnel
tunnelhost pc mediating the tunnel
-pxxxx port used to connect to tunnelhost
-l USER username to connect to tunnelhost

Ports 22 and 80 CANNOT be changed

Ports 2123 and 8000 can be changed

How to use remote console of ASROCK server

The ASROCK server remote console uses Java Web Start. OpenJDK with icedtea-web is not supported. Oracle JDK 11 has dropped the support to Java Web Start.

To use the remote console:
1) Uninstall icedtea-web
2) Install Oracle JDK8
3) Open the ssh tunnels, the tunnel to the IPMI must use port 80, sudo permission can be required.

sudo ssh -L 80:daqv0207-ipmi.lbdaq.cern.ch:80 lbgw -l<ONLINE USERNAME>
4) Login in the IPMI page and go to remote control - console redirection
5) Launch the script with Java Web Start (javaws)

How to access IPMI panel of GIGABYTE server

1) If outside CERN network, open a terminal and create the following tunnel

ssh -L 2123:lbgw:22 lxplus.cern.ch -l<CERN USERNAME>

2) Open a second terminal to create another tunnel

ssh -L 8000:acctb01-ipmi.lbdaq.cern.ch:443 localhost -p2123 -l<ONLINE USERNAME>

3) Open the browser and go to

https://localhost:8000

4) Enter login credentials

user: operator
password: ASK OR OPEN A TICKET

1-CERN) If at CERN, where lbgw is reachable, simply start the tunnel at 2) and not 1) by doing

ssh -L 8000:acctb01-ipmi.lbdaq.cern.ch:443 lbgw -l<ONLINE USERNAME>

-- GiovanniBassi - 2021-06-23

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Topic revision: r2 - 2021-06-24 - GiovanniBassi
 
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