Equipment/Turing

Turing
Model	Virtual
Sub-category	Systems
Status	Good working order
Last updated	23 November 2018 17:33:32
Consumables	Unknown
Accessories	Unknown
Training requirement	yes
Training link	Unknown
ACnode	no
Owner	LHS
Origin	Sponsorship
Location	A Bitfolk datacenter
Maintainers	The Trustees

Purpose

Runs the UK Hackspace website and hosts wikis for any spaces that want. Also hosts the membership system and forwards the webcams for London Hackspace.

Name

Named after Alan Turing.

Access

Access is limited to Trustees only since it contains the membership db.

LDAP

Turing has an LDAP db on it that is replicated to ldap-secondary (Hackspace VM in Wembley) for use on machines in the space.

Turing has iptables rules that allow access to the LDAP server from ldap-secondary (Hackspace VM).

We use a schema that is compatible with Samba for 2 reason:

We might want user logins to Samba at some point
The sambaNTPassword attribute is understood by FreeRADIUS and is needed for MS-CHAP auth for spacefed.

however the sambaNTPassword hash is quite weak, and the sambaLMPassword hash is silly, so ideally:

the sambaLMPassword attribute would contain nonsense that can never be authenticated against
the sambaNTPassword attribute would be for a different password from the userPassword

Currently we are not adding sambaLMPassword attribute's to the database.

cheat sheet at the moment

list a users details

smbldap-usershow <username>

or:

smbldap-userinfo -l <username>

add a user to a group

smbldap-usermod -G +<groupname> <username>

List the members of a group

smbldap-groupshow <group name>

Remove a member from a group

smbldap-usermod -G -<groupname> <username>

Edit the acl's

(assuming ldapvi is installed)

ldapvi -Y EXTERNAL -h ldapi:/// -b olcDatabase={1}hdb,cn=config -v  "(olcAccess=*)" olcAccess

Issues

might need to add an index to memberUid

Changes to tools on Turing

The smbldap tools were patched with these patches

... and a few others, you can see them all here:

https://github.com/londonhackspace/hackspace-foundation-sites/tree/ldap/ldap

Graphs

IP

~~212.13.195.146~~ 85.119.83.146 (hackspace.vps.bitfolk.com)

Services

These run as daemons automatically:

Apache
postgres
mjpegproxy-webcams (in screen, no logging)