Documentation Index
Fetch the complete documentation index at: https://docs.allthingslinux.org/llms.txt
Use this file to discover all available pages before exploring further.
atl.sh enforces per-user resource limits to keep the server fair and stable for everyone. Here’s what applies to your account.
Disk Quota
| Limit | Value |
|---|
| Soft limit | 5 GB |
| Hard limit | 6 GB |
quota -s # your disk usage and limits
du -sh ~ # total home directory size
du -sh ~/*/ # breakdown by subdirectory
ncdu ~ # interactive disk usage browser
node_modules/, target/, .cache/, and similar directories in check.
CPU Limit
| Limit | Value |
|---|
| Max CPU | 200% (2 cores) |
Memory Limit
Enforced via systemd cgroup v2. If your processes exceed this, the kernel OOM-kills them.
Process Limits
| Limit | Value |
|---|
| Max tasks (processes + threads) | 200 |
nproc) and systemd cgroup.
/tmp Isolation
Your /tmp, /var/tmp, and /run/lock are private to your session via pam_namespace. Other users cannot see or access files you create there. This is per-login — a new SSH session gets a fresh namespace.
This means:
/tmp/myfile from your session is invisible to other users- Shared IPC via
/tmp across users won’t work (use sockets in your home directory instead)
Persistent Sessions with tmux
SSH sessions end when you disconnect. Use tmux to keep processes running:
tmux # start a new session
# ... start your process ...
# Ctrl-a d detach (process keeps running)
tmux attach # reattach later
tmux ls # list running sessions
Process Accounting
The server runs acct (process accounting), which records every command executed by every user. Admins can review this with lastcomm and sa. This is a standard pubnix practice — be aware that your command history is logged at the system level.
Checking Resource Usage
# Your current processes
ps aux --user $USER
# Memory and CPU usage
htop # filter by user with 'u'
btop
# Per-process network usage
nethogs
# Disk I/O
iotop
# Bandwidth
vnstat # historical bandwidth stats