The acting CTO is responsible for maintaining TheLab's network/server infrastructure.

TheLab has a MikroTik router with a handful of APs, and a Cisco switch for PoE and extra ports.

The network is divided up into a few subnets, each on their own vlan.

• Members: 10.200.1.0/24
• Members Static IPs: 10.200.0.0/24
• Infrastructure: 10.200.10.0/24
• Cameras: 10.200.20.0/24
• Access Control: 10.220.4.0/24

Management points:

• 10.200.10.1: Mikrotik router web interface
• 10.200.10.2: Cisco network switch

The switch has 4 obvious bays of ports, each assigned to a VLAN like:

• Cameras
• Members
• Infrastructure
• Access Control

We use Cloudflare for various things including (most importantly) DNS. The account is associated with [email protected], so new CTOs should go reset the password to get access. Things don't change often in this account but it's worth knowing that it exists.

Foobar is the main internet-facing server running Conway and Dokuwiki.

• Azure Standard_B1s running Ubuntu 24.04 in southcentralus.
• Enable daily Azure backups during provisioning.
• Manually populate IP in Cloudflare dns record (foobar.thelab.ms)
• The cto user should trust the current acting CTO's ssh pubkey. It can always be updated through the Azure portal.
• Manually install cloudflared for tunneling. It would be hard to automate, very easy to do by hand.
  • Make sure to run as a service i.e. cloudflared service install
• Run make ansible!

Here's the cloudflared config at the time of provisioning:

snippet.yaml

tunnel: <redacted>
credentials-file: /root/.cloudflared/<redacted>.json

originRequest:
  connectTimeout: 10s

ingress:
  - hostname: members.thelab.ms
    service: http://localhost:8080

  - hostname: docs.thelab.ms
    service: http://localhost:8081

  - service: http_status:404

Baz is the main on-prem server at TheLab.

• Dell 16 core by 96gb r710 with a bunch of SSDs
• Manually configure the RAID controller with a keyboard/monitor
  • One RAID 1 group for the first two disks (boot/os drive)
  • One RAID 0 group for the rest
• Make sure the system option is set to turn on when power is lost
• Install Ubuntu 24 from a flash drive
  • Create a LACP bond for NICs 1 and 2 with the IP: 10.200.10.234
  • Mount the data drive to /mnt/data
• Make the default username “cto” with a reasonable password
• Run make ansible!

Here's the cloudflared config at the time of provisioning:

snippet.yaml

tunnel: <redacted>
credentials-file: /root/.cloudflared/<redacted>.json

originRequest:
  connectTimeout: 10s

ingress:
  - hostname: frigate.thelab.ms
    service: http://127.0.0.1:8971

  - service: http_status:404