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✅ Update progress: Ex3 complete, permissions cheat sheet added

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mrsh
2026-05-22 03:29:35 +02:00
parent eb95dc7022
commit 0025bc5586
2 changed files with 21 additions and 6 deletions
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23
Midori's Linux Dojo 🌸/Phase 1 - Walking/Exercises.md
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@@ -133,10 +133,25 @@ vi /root/lab/notes/vi-practice.txt
--- ---
### 💡 Key Lesson: Root bypasses everything!
- **root** can read/write/execute ANY file regardless of permissions
- Permissions only protect against **non-root users**
- Always use a regular user + `sudo` in production!
- Directories need `+x` to be accessible
### 🔢 Permission Cheat Sheet
| Mode | Octal | Meaning |
|------|-------|---------|
| `rwx------` | `700` | Only owner can do anything |
| `rwxr-xr-x` | `755` | Owner full, others read+execute |
| `rw-r--r--` | `644` | Readable by all, writable by owner |
| `rw-------` | `600` | Only owner can read/write |
| `rw-rw-rw-` | `666` | Everyone can read/write (dangerous!) |
## ✅ Phase 1 Complete Checklist ## ✅ Phase 1 Complete Checklist
- [ ] Exercise 1: `whoami`, `uname -a`, file creation - [x] Exercise 1: `whoami`, `uname -a`, file creation
- [ ] Exercise 2: Directory structure, `cp`, `mv`, `cat` - [x] Exercise 2: Directory structure, `cp`, `mv`, `cat`
- [ ] Exercise 3: `chmod`, permissions understanding - [x] Exercise 3: `chmod`, permissions understanding
- [ ] Exercise 4: Text editors (nano + vi) - ⏭️ Exercise 4: Skipped (already know text editors)
**Next:** [[Phase 2 - Networking]] 🌐 **Next:** [[Phase 2 - Networking]] 🌐

4
Midori's Linux Dojo 🌸/Phase 2 - Networking/Exercises.md
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@@ -121,8 +121,8 @@ ip route
## ✅ Phase 2 Checklist ## ✅ Phase 2 Checklist
- [ ] Ping and ARP (`ip neigh`) - [ ] Ping and ARP (`ip neigh`)
- [ ] SSH key generation and passwordless login - [x] SSH key generation and passwordless login
- [ ] File transfer with `scp` / `rsync` - [x] File transfer with `scp` / `rsync` (need `apk add rsync` on Alpine!)
- [ ] Running a network service - [ ] Running a network service
**Previous:** [[Phase 1 - Walking]] | **Next:** [[Phase 3 - Users and Files]] **Previous:** [[Phase 1 - Walking]] | **Next:** [[Phase 3 - Users and Files]]