Cookies help us deliver our services. By using our services, you agree to our use of cookies.OK
(format - can longer make TOC sit next to network diagram for somereason)
(→‎Joshua: linked in textr)
Line 132: Line 132:
=== [ Joshua] ===
=== Joshua ===
Joshua, (named after [[Wikipedia:WOPR|WOPR]]), loves to play games, Tic Tac Toe, Chess, Global Thermonuclear War... all the family favourites.   
Joshua, (named after [[Wikipedia:WOPR|WOPR]]), loves to play games, Tic Tac Toe, Chess, Global Thermonuclear War... all the family favourites.   
We've co-opted him into running Quake II, Open Arena, Unreal Tournament & Counter Strike 1.5.  <br/>
We've co-opted him into running Quake II, Open Arena, Unreal Tournament & Counter Strike 1.5.  <br/>

Revision as of 20:11, 16 December 2018

This page give the details of the network.

Network Layout

This page will show the network topology & proposals for network expansion / modification.
This is images is outdated--'RepRap' Matt 11:21, 23 February 2012 (EST)

External IP address

External domain address (DNS record looked after by 'RepRap' Matt)

Hackspace Network

Static & Reserved IP's

Currently the network runs on

The following ranges are reserved for there given purpose

Start End Purpose kryten The Main Router Static Servers Static Computers Static Webcams openVPN DHCP pool Static HackSpace Instrumentation Static Printers DHCP Range Broadcast

These are assigned via DHCP/MAC using Kryten or set statically on the device

IP DNS Name Notes Kryten Router Holly Our always on server Joshua Our "playful" games server JARVIS Sandbox Debian VM open for all members Rommie HMS Development VM Collective ESXi Management Server vCMA VMware vCenter Mobile Access runnning under Collective HollyVM Holly VM running under Collective yoocnc YooCNC desktop studiocam Pan/Tilt Studio webcam gatekeeper Access Control nanode MatrixMQTT BIG LED Matrix Display nanode Vending Machine RFID cashless payment Mini-matrix Blue room mini-matrix display Wall of Faces Wall of members faces marvin A4 Laser Printer Clank A3 Laser Printer B4 A4 InkJet with Scanner

External Port Routing

Service External Port Internal Port Internal IP Notes
HTTP 80 80 Webserver on Holly
SSH 1921 22 SSH on Holly
SSH 1922 22 SSH on HollyVM

Server Naming

See here for our naming convention

Network Devices


Able is Kryten's brother the Linksys ADSL2MUE modem that talks to the outside world.
Running in PPPoA bridge mode Kryten passes the talktalk login detail to Able.


Kryten (named after Kryten) is a Linksys WRT54GL running DD-WRT VPN Build, he handles all our DHCP, routing from the external world and WiFi.
Kryten has a 4 port switch - Holly takes 1.
WiFi for Hackspace SSID: HSNOTTS passcode uses WPA2 protocol AES encryption. Members only, passcode on request, changes to the passcode will be posted to the members only Google group.
WiFi for guests is setup as HSNOTTS_GUEST and passcode can be provided and this will run on a seperate VLAN. <br/ The Nottinghack VLAN has access to local resources - e.g. a future NAS file-share , a local dropbox server for projects & collaborations, a backup of all Web / Wiki files (to allow a remote restore in the event of moving hosts / outage of services) and anything else we don't want to be web facing.
The VPN (when enabled) would allow remote management of the VLANS, which could come in handy in the event of issues with the client WiFi access point.

Router management username & password for Authorised members only. If there something you need changing ask on the google group or speak to 'RepRap' Matt or Tony S directly
Usual rules apply, as to any tool - if you don't know how to use it / don't do anything :)


Kryten runs our openVPN server for access to the hackspace network from the outside world.
For more details see the VPN page





Joshua, (named after WOPR), loves to play games, Tic Tac Toe, Chess, Global Thermonuclear War... all the family favourites. We've co-opted him into running Quake II, Open Arena, Unreal Tournament & Counter Strike 1.5.
The aim is to have a games server running games suitable for clients running low powered netbooks & laptops. This allows us to run LAN parties & have more people join in, without having to bring gaming rigs from home. Also QII & Open Arena have open source install paths available, with Unreal & Counter Strike available at low cost.
Joshua is running Windows XP Pro on a 1GHz PIII with 512MB RAM & a RIVA TNT2 graphics card.
Impressive I know.

There are 2 user accounts -
"David" - not password protected, but limited access - suitable for web browsing / printing etc.
"Falken" - admin account - speak to Tony_S if you need the password.



Marvin the Paranoid Android, named after Marvin_the_Paranoid_Android

According to Marvin, "The first ten million years were the worst, and the second ten million years, they were the worst too. The third ten million I didn't enjoy at all. After that I went into a bit of a decline." Apparently, the best conversation he'd had was over 40 million years ago, and that was with a coffee machine.

The HP Laserjet 4 Plus is set up on as marvin.
We have a few spare toners but donations towards paper usage are more than welcome.


The HP Laserjet 5Si is set up on as clank.
The printer feeds A4 paper from tray 2 and A3 paper from tray 3.
A duplexer is installed enabling double-sided printing.


The Brother MFC-5460CN is set up on as B4.
Printing and copying in colour, and scanning via "Control Center 3" software on quorra when running WindowsXP.


The main Nottinghack website is run for a dedicated linux server located in Florida provided by 'RepRap' Matt

This hosts the Wordpress blog, this wiki, the Nottinghack Planet, and all the external DNS recordes for Nottinghack domains, we have nottinghack.[||com]

The Twitterbot for @HSNOTTS is also hosted on on this server.

'Forth coming' online shop.

Hosted locally at the space on Holly
DNS record looked after by 'RepRap' Matt

Also hosted locally on Holly this provides graphing of various stats and info from the hackspace instrumentation


Our intranet, only accessible form the hackspace network

HackSpace Instrumentation

The Network and Holly provide the backbone to our HackSpace Instrumentation projects.

Other Info

ADSL Connection Reboot Procedure

If for some reason the internet connection is not responding! The Kryten and Able are located on the Internet shelf on the Members Storage room On Able check if the 'DSL' and 'Internet' lights are green If not on then reboot Able by cycling power using the power switch on the back, If two minutes after doing this the 'DSL' light does not come back on then you can also cycle power on Krtyen If there's still no look, it could well be an outside issue with talktalk.

Extra Equipment

See Network/Equipment for a list of our other network gear.