Network Overview

Spark Makerspace Network Overview

This page is intended to give you an overview of the network at Spark Makerspace.

Network Graph

File:SparkNetworkDiagram.png

Network Graph

Editable Network Graph on yEd Live

Domain

Spark is using FreeIPA to manage host and user identities. While it's not a replacement for a Microsoft Active Directory domain controller, it get us close for the low price of free!

How to Create a New User

Point your browser tohttps://freeipa.spark.spork

while on the Spark network and login with administrator credentials.

FreeIPA Login Page

Once logged in, on the Identity > Users tab, click the Add button on the primary section. Enter the user's information. Spark uses a username format of first initial + last name. If this username is already in use, use full first name instead of first initial.

How to enroll a Ubuntu machine

It's easier to just deploy a new Ubuntu machine from MAAS. See Computer Deployment

1. Set hostname

$ sudo hostnamectl set-hostname new-host.spark.spork

2. Install freeipa-client package

$ sudo apt install -y freeipa-client

3. Edit /etc/hosts

$ sudo vim /etc/hosts
# Add FreeIPA Server IP and hostname
10.11.12.156 freeipa.spark.spork freeipa

4. Register host

$ sudo ipa-client-install --hostname=`hostname -f` \
--mkhomedir \
--server=freeipa.spark.spork \
--domain spark.spork \
--realm SPARK.SPORK

You can proceed with fixed values and no DNS discovery. It's also fine to not configure NTP.

5. Enable mkhomedir.

$ sudo bash -c "cat > /usr/share/pam-configs/mkhomedir" <<EOF
Name: activate mkhomedir
Default: yes
Priority: 900
Session-Type: Additional
Session:
required pam_mkhomedir.so umask=0022 skel=/etc/skel
EOF

Then run

$ sudo pam-auth-update

Ensure that "activate mkhomedir" is checked and hit enter when prompted.