mirror of
https://github.com/mikaela/mikaela.github.io/
synced 2024-11-08 13:09:28 +01:00
65 lines
1.8 KiB
Markdown
65 lines
1.8 KiB
Markdown
---
|
|
layout: null
|
|
permalink: /n/firewalld.html
|
|
redirect_from:
|
|
- /n/firewall-cmd.html
|
|
sitemap: false
|
|
---
|
|
|
|
# Quick note on firewalld usage
|
|
|
|
This is practically [/ufw](/ufw), but fore Firewalld which Fedora comes with.
|
|
The blog post also predates me having a /n directory here.
|
|
|
|
**_After done, run `sudo firewall-cmd --reload`_**
|
|
|
|
<!-- editorconfig-checker-disable -->
|
|
<!-- prettier-ignore-start -->
|
|
|
|
<!-- START doctoc generated TOC please keep comment here to allow auto update -->
|
|
<!-- DON'T EDIT THIS SECTION, INSTEAD RE-RUN doctoc TO UPDATE -->
|
|
|
|
- [Zones](#zones)
|
|
- [Services](#services)
|
|
- [Ports](#ports)
|
|
|
|
<!-- END doctoc generated TOC please keep comment here to allow auto update -->
|
|
|
|
<!-- prettier-ignore-end -->
|
|
<!-- editorconfig-checker-enable -->
|
|
|
|
## Zones
|
|
|
|
firewalld zones are privilege of NetworkManager users, this tends to be
|
|
a systemd-networkd household. Then again I don't believe in absolutely trusted
|
|
zones.
|
|
|
|
Zone would be specified by `--zone=home` in the commands. The other zone I
|
|
could imagine using is `public`.
|
|
|
|
## Services
|
|
|
|
```bash
|
|
sudo firewall-cmd --add-service=ssh --permanent
|
|
sudo firewall-cmd --add-service=mosh --permanent
|
|
sudo firewall-cmd --add-service=ntp --permanent
|
|
sudo firewall-cmd --add-service=syncthing --permanent
|
|
```
|
|
|
|
- I trust Chrony (ntp) to not allow it to be used from outside of LAN
|
|
as `firewalld` is apparently not designed with limiting source
|
|
addresses in mind.
|
|
- `syncthing` is the client, not to be confused with `syncthing-gui`
|
|
or `syncthing-relay`.
|
|
|
|
## Ports
|
|
|
|
```bash
|
|
sudo firewall-cmd --permanent --add-port=9001/udp
|
|
sudo firewall-cmd --permanent --add-port=6771/udp
|
|
```
|
|
|
|
- `9001/udp` is Yggdrasil automatic peering, although link-local and
|
|
unlikely to be recognised by predefined rules.
|
|
- `6771/udp` is [Bittorrent Local Peer Discovery](http://bittorrent.org/beps/bep_0014.html)
|