Minutes 2024-10-03: Difference between revisions

# Met in Rekhi 114 for Install-a-thon at 5PM

## Going over new members to LUG

### Why they wanted to learn Linux

### Processes are privileged by default

### Tools 'work backwards' to subtract privileges from processes

### Clustering is hard

#### Proper clustering systems basically rewrite the entire application-level stack (e.g. Kubernetes)

### Scope creep in common utilities causes vulnerabilities

#### GTFOBins [https://gtfobins.github.io]

### Networking stack is represented as multiple filesystems in /net

### global mounts do not exist, all processes have their own namespace

### 9p protocol backs all inter-process file-based communication

### 9p is network transparent

### Plan 9 is a distributed operating system

#### An idealized Plan 9 lab consists of a number of servers

## 9Front fixes and improvements to Plan 9

### All around better hardware support, especially on Thinkpads

## Who is Cirno

### Official 9Front mascot

### Demo!

### How does piping raw audio files to audio filesystem work given sample rates?

### Threat landscape for 9Front?

#### that one path traversal exploit /g/ found on 9Front's homepage [https://cyber.vumetric.com/vulns/CVE-2022-28380/path-traversal-vulnerability-in-rc-httpd-project-rc-httpd/]

# Wrap up

## ....don't fork-bomb guardian (oops)

## No Schmidt's today :(

### most members had upcoming and/or take-home exams