View source for How to login to Squiggles

====[[How to login to Squiggles]]====
Squiggles is general purpose analysis and storage computer for MEG/Neurophysiology/Epilepsy data

Configuration:
For Windows
For Mac/Linux

==FastX Connection (Preferred Connection):==
FastX is an alternative to VNC connect. It provides a more straightforward connection than VNC. Previously, we have had an issue with a large number of users logging in at once using the VNC. FastX resolves this issue.

The FastX server is installed on squiggles. You will need to download the client - https://www.starnet.com/fastx/current-client

[[File: FastX_config.png]]

Steps to setup the connection: <br />  
1. Open fastX <br />
2. Click the plus to start a new connection <br />
3. Enter the Connection Name, host (sguiggles.rcc.mcw.edu), and user (rcc username) <br />
4. Click the plus to enter a session.  Use /etc/X11/xinit/xinitrc for the command  <br />

==VNC (Old method - still works, FastX may be more reliable)==
===VNC User Ports:===
(make sure to log in under your port number)
{| class="wikitable"
|-
! scope="col"|User
! scope="col"|Port
|-
|Jeff Stout
|5910,5911
|-
|Joe Heffernan
|5912
|-
|Candida Ustine
|5914
|-
|Manoj Raghavan
|5913
|-
|Chad Carlson
|5915
|-
|Chris Anderson
|5916
|-
|Serena Thompson
|5917
|-
|Patrick Bauer
|5918
|-
|Jeff Binder
|5919
|-
|Leo Fernandino
|5920
|-
|Lisa Conant
|5921
|-
|Lindsay Nelson
|5922
|-
|Nick Guzowski
|5923
|-
|Zack Harper
|5924
|-
|Bill Gross
|5925
|-
|Michelle Kassel
|5926
|-
|Greg McQuestion
|5927
|-
|Monica Keith
|5928
|-
|Priyanka Shah
|5929
|-
|Vahab Youssofzadeh
|5931
|-
|Songhee Kim
|5935
|}

===Connecting to Squiggles===
====For Mac or Linux====
From a bash shell / terminal type the following. This will open a tunnel over ssh to log into VNC Viewer (see below).
ssh -N -L 59**:localhost:59** squiggles.rcc.mcw.edu

====For Windows====
An SSH tunnel must be performed using Putty or with windows 10 you can use the ssh command above.

Download Putty:
https://www.chiark.greenend.org.uk/~sgtatham/putty/

[[File:Putty config1.PNG]]

[[File:Putty config2 tunnel.PNG]]

===Logging into VNC session===

Once connected to squiggles over ssh 

====Creating a VNC session====
VNC sessions will be created at bootup using the port numbers above
If the VNC session fails or is not working:
vncserver :## -geometry 1900x1200    (This will open a vnc session on port 59## with a resolution of 1900x1200)  The ## must match your port number for this to work.
====Connecting to a VNC session====
Use realvnc viewer to log into your VNC session.  
=====VNC viewer download=====
Realvnc has been tested to work - https://www.realvnc.com/en/connect/download/viewer/
=====Log in using RealVNC=====
Open vncviewer 
In the top bar that accepts a VNC Server address <br />
type localhost:##  (where ## are the last two digits of your port number 59##) 
 [[image:vncviewer.png]]
Log into the VNC session using your VNC password <br />
Once the VNC window is open, log into the server using your RCC password
=====Killing a VNC session=====
From the terminal try, <br />
<code>vncserver -kill :xx</code> <br />
for a manual killing (if asked) try, <br />
<code>rm -f /tmp/.Xxx-lock</code>  <br />
<code>rm -f /tmp/.X11-unix/Xxx</code>