MTU LUG Wiki - User contributions [en]

Main Page

2026-01-20T20:35:25Z

Plant: Update meeting location

Welcome to the MTU LUG Wiki!

Our hope for this wiki is to be a source of information related to Michigan Tech, the Upper Peninsula, and Linux, to be used by current and prospective students at MTU (and anyone else who finds it useful).

If you'd like to edit the wiki, please email the LUG mailing list ([mailto:lug-l@mtu.edu lug-l@mtu.edu]) or shoot us a message in LUG's [https://discord.gg/5mZUgcNWAK Discord] or [ircs://lug.mtu.edu:6697 IRC] and we'll happily make you an account (spambotters were griefing pages).

Alternatively, anyone currently with an account can make new ones for others by going to [[Special:CreateAccount]].

<strong>As of Spring 2026, meetings are Thursdays 7-8pm in Rekhi G05 (in the basement).</strong>

Meeting minutes are available at: [[Meeting Minutes]] (2006-2025+)

Upcoming talks are available at: [[Upcoming Talks]]

== Who we are ==
The Linux Users Group is a student organization at Michigan Tech that was established in 2001 to further students' knowledge of Linux/UNIX based operating systems and discuss technological advancements in Operating Systems.

Each week, we gather to discuss current news about tech and open-source software, after which a member will give a presentation about a technical topic (typically pertaining to Linux, FOSS, or computer protocols) that's different each week.

Whether you're a GNU Wizard running a custom distro on your laptop or a total Linux beginner who hasn't ever touched a shell, our mission is to provide an environment for anyone to learn more about using Linux on their gadgets and gizmos!

== About LUG ==
* <s>[[Archived Wiki]] (Note, many links are broken here and requesting an account on here will do nothing.)</s> As of 2024-07-11, the wikis have been merged.
* [https://lug.mtu.edu/archive/mail/threads.html LUG mailing list archives]
* [[Members|LUG members (+alumni)]]
* [[Docs]] <- (Almost) all of our internal documentation, from our servers and services to the process we use to screen-print custom t-shirts and more (very WIP, will be done #soon)

== Computer stuffs ==

List of links that I find beneficial for anything related to computers. Add to it any more topics that you like.

[[Testing page]]

=== Internal tips ===

* [[Archiving emails]]

* [[IRC Bouncer]]

=== Lectures ===

* [[ASIC Design]]

* [[FFmpeg]]

* [[Storage management]]

* [[vim]]

* [[nginx]]

* [[email]]

=== Tips ===

* [[Web safety]]

=== Servers ===

* [[Servers]] is a page for the (hopefully) current configuration of our servers.
* [[LUG Services|Services]] for a (currently outdated) listing of all the services we offer

=== Programming ===
* [https://overthewire.org/wargames/bandit/ Overthewire Bandit CTF] - A CTF for learning the basics of Linux and simple exploits.

* [[Bash]] - Crappy Bash Crash Course

* [https://teachyourselfcs.com/ Teach yourself CS] - Textbook-based learning.

* [https://projecteuler.net/archives Project Euler] - Small project, math-based learning.

* [https://www.beej.us/guide/bgnet/ Beej's guide to network programming] - A good user guide in C-based network programming (surprise).

* [https://handmadehero.org/ Handmade Hero] - A very long tutorial on how to write your own game engine in C/C++. Utilizes the Windows message handler. Rewrites SDL (and other) libraries before using them for a much better understanding.

* [https://github.com/ashier/martyrs-mega-project/ Martyr's Mega Project] - A list of ideas/projects to write to give ideas on what to keep programming.

* [https://github.com/danistefanovic/build-your-own-x Building your own X] - A list of ways to building your own types of systems. Some are very challenging, while some are straightforward.

* (Intermediate) [https://web.eecs.utk.edu/~azh/blog/challengingprojects.html Challenging projects 1] [http://web.archive.org/web/20220801012604/https://austinhenley.com/blog/challengingprojects.html archive] - Small list of week-to-month long projects that create some fascinating applications.

* (Intermediate) [https://web.eecs.utk.edu/~azh/blog/morechallengingprojects.html Challenging projects 2] [http://web.archive.org/web/20220721081608/https://austinhenley.com/blog/morechallengingprojects.html archive] - Small list of week-to-month long projects that create some fascinating applications.

* (Intermediate) [https://adventofcode.com/ Advent of Code] - a fun challenge to do data analysis and data parsers with daily challenges from December 1st to 25th (it's an advent calendar).

* (Advanced) [https://cryptopals.com/ Cryptopals] - A set of challenges that get insanely challenging extremely quickly. Look at the final challenges to see they do not hold back on any aspect of cryptography.

* (Advanced) [https://github.com/agelastic/eudyptula/blob/master/README Eudypatula challenge] - A dead challenge to start programming for the Linux kernel. Can still be done locally, but answers won't be verified.

=== Social ===

* [https://www.gwern.net/docs/technology/2005-shirky-agroupisitsownworstenemy.pdf Internet communities]

== Michigan Tech stuffs ==

* [[MTU Jargon]]

* [[Cool places in the Keweenaw]]
* [[MTU Building Codes]]

Docs/Plans

2025-10-30T17:47:27Z

Plant: add opnsense migration stuff

# 10 Gb/s backbone for internal network
## Install all Dell Daughterboards
## Program FiberStore SFP Sleds
# Rearrange servers
## Mirrors/Leskinen on bottom of our space
## Maho right above
## Proxmox cluster
## Shell
## Lasagna/Ravioli on very top (OPNSense servers)
# Redo Proxmox
## Change storage from local replication to either Ceph, or iSCSI/NFS via Leskinen
## Figure out firewalling local network from VMs for VPS idea (able to give people an ""unmanaged VM"", it should not be able to access any other VMs on the local network)
### New subnet? (10.10.2.0/24)
### Reverse-NAT via OPNSense (and mandatory DHCP) so we don't have to trust people to statically assign themselves the right public IP?
# Fix Mirrors LAN/WAN IP (currently only on WAN, via DHCP)
# Pterodactyl
# Faceplates for servers
## Stickerbomb idea!
# Consider hosting authoritative DNS resolver for linuxusers.group on our infra
## Automated domains via dhcp hostnames in opnsense
# Finish OPNsense transition
## Move Wireguard off of pfSense install
### People will need to edit their configs to point at the new gateway
## Migrate config from pfSense
### DHCP scary
### We should make any firewall/NAT/etc adjustments during this process
## Have OPNsense take over as main gateway
## Blow up pfSense and replace it with OPNsense
## Set up gateway redundancy
### How will VPN work with this?
# LDAP (on Leskinen?)
## Tie into iDrac/Switches
## VM/Proxmox/OPNSense/Debian servers (Leskinen, Maho, Mirrors)
## Everything but Shell (and maybe Wiki) so alums can have access
# Document, document, document.

Docs/Switches

2025-09-29T14:54:40Z

Plant: Document fiber switch configuration changes

[[Docs|<small>~/Docs</small>]]

'''For Layer 1 network details, see [[Docs/Cables]].'''

'''For Layer 3 network details, see [[Docs/OPNsense|Docs/OPNSense]].'''

== VLANs ==
{| class="wikitable"
!Network
!VLAN ID
|-
|Management
|1
|-
|LAN
|2
|-
|????
|30
|-
|WAN
|640
|}

== Switch Ports ==
Fiber switch:
{| class="wikitable"
!Switch port
!Client
!Client port
!VLAN 1 (Mgmt.)
!VLAN 2 (LAN)
!VLAN 30 (???)
!VLAN 640 (WAN)
|-
|11
|ravioli
|ix1 (left SFP)
|Tagged
|Tagged
|Excluded
|Excluded
|}
Ethernet switch:

=== WAN ===
Our WAN is a LAGG across two ports. The link needs '''LACP enabled''' ("Static mode" '''off''' in 1Gb Ubiquiti Switch) [https://www.reddit.com/r/Ubiquiti/comments/7xs70n/lag_dynamic_vs_static/duauolg/], and '''STP off'''.

IT configures their switches to automatically shut off ports if they detect STP advertisements.

Reference commands to make a Cisco switch satisfy the requirements:<syntaxhighlight lang="text">
(config-if)# spanning-tree bpdufilter enable
(config-if)# spanning-tree bpduguard disable
</syntaxhighlight>