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https://github.com/dvershinin/fds

The go-to FirewallD CLI app.
https://github.com/dvershinin/fds

ban centos centos7 centos8 cloudflare cloudflare-firewall continents countries fedora fedora-linux firewall firewall-management firewalld tor zones

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The go-to FirewallD CLI app.

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README 

        
# fds



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The go-to **F**irewallD CLI app that **d**oesn't **s**uck.



## What is `fds`?

 

Firewall management is often a task that you do once at the time of setting up a server.

But if you're maintaining a server like a PRO, you are monitoring logs, and blocking malicious users as they come, on a *regular basis*.



FirewallD is a great firewall software. It has the concepts of zones, sources, and supports IP sets. 

However, its client app, `firewall-cmd` is far from user-friendly when it comes to blocking and managing blocked IP addresses.

Furthermore, if you also use Cloudflare firewall, you also want to propagate your blocked IP addresses to it for best protection.

 

`fds` is the CLI client for FirewallD/Cloudflare, that you'll love to use any day.

It is an alternative, client for FirewallD.



Use it for simple or complex banning tasks, instead of `firewall-cmd`.



Look how simple things are with `fds`:



```bash

fds block 

fds block 1.2.3.4

```



It makes the task of managing your FirewallD easy and human-friendly.



## Installation on CentOS/RHEL, Fedora and Amazon Linux



First, install RPM repository configuration:



```bash

sudo yum -y install https://extras.getpagespeed.com/release-latest.rpm

```



## Free installation



For free installation and usage, disable the binary packages sub-repository,

which contains non-essential dependencies for `fds`:



```bash

sudo yum -y install yum-utils

sudo yum-config-manager --disable getpagespeed-extras

```



Now you can install `fds`:



```bash

sudo yum -y install fds

```



## Installation with subscription



By [subscribing to the GetPageSpeed RPM repository](https://www.getpagespeed.com/repo-subscribe), you gain access to a [number of packages](https://extras.getpagespeed.com/redhat/8/x86_64/repoview/) other than `fds`, as well support its development.



Simply run this command:



```bash

sudo yum -y install fds

```



The subscription ships with packages for IP prefixes' aggregation.

`fds` can use those, and thus essentially overcome some [serious FirewallD bugs](https://fds.getpagespeed.com/firewalld/).



So it's highly recommended to also run the following if you are a subscriber:



### CentOS/RHEL 7 only



```bash

sudo yum -y install python2-aggregate6

```



### CentOS/RHEL 8+, Fedora and Amazon Linux



```bash

sudo yum -y install python3-aggregate6

```



## What `fds` can do 



The `fds` is utility program for users of FirewallD. It is a helper to easily perform day-to-day 

firewall tasks:



* block users of Tor

* block countries

* block arbitrary IP addresses

* block the same over at Cloudflare



### Integrations



By default, `fds` only operates with FirewallD. 



To enable [Cloudflare integration](docs/cloudflare.md), run:

 

    fds config 



## Block Tor



You can block all Tor exit nodes by running:



```bash

fds block tor

```



Note that since these addresses constantly change, you may want to run this command in a cron.



## Ban a single IP



```bash

fds block 1.2.3.4

```



This blocks IP address in a proper(©) fashion by ensuring that the IP is in a set named `networkblock4`,

that the set is a source to FirewallD's `drop` zone. Using IP sets is the corner stone of consistent

firewall management!



`fds` is also smart enough to break any existing connections originating from that IP address.

Useful if malicious requests are in process.



You can specify base name of created/used IP set for blocking, by specifying it in `--ipset`, e.g.

for `banned4` (IPv4) or `banned4` (IPv6), use:



```bash

fds block 1.2.3.4 --ipset banned

```



## Ban a country or a continent



```bash

fds block 

fds block China

fds block Asia

```



To block a country which has spaces in its name, use quotes:



```bash

fds block "Country Name"

```



You can list all country names available for blocking by running:



```bash

fds list countries

``` 



You can list all continents available for blocking by running:



```bash

fds list continents

``` 



### `--no-reload` (`-nr`)



Use this optional flag to prevent FirewallD from being reloaded.

This is only useful when adding multiple blocks, as it ensure faster blocking:



```bash

fds block 1.2.3.4 --no-reload

fds block 2.3.4.5 --no-reload

fds block Country1 --no-reload

...

fds block Country2

```



In the above example, we block some IP addresses and a few countries.

The last block operation will reload FirewallD and actually apply our ban.



Alternatively, invoke all `fds block` with `--no-reload` option and invoke `firewall-cmd --reload`

in the end.



## List all blocked networks and countries



The following allows to easily see what is blocked: 



```bash

fds list blocked

``` 



## Unblock a country or IP/network



Use `fds unblock ...` like the following:



```fds

fds unblock China

fds unblock 1.2.3.4

```



## Reset all bans



You can quickly remove all blocks (and by that, all IP sets associated with `fds`):



```bash

fds reset

```



## Notes



The `fds` package automatically installs a cron job that syncs your blocked IP sets daily.

So there is no need to do anything to ensure a country (or Tor) stays blocked.



### Planned



* integration with [`trusted-lists`](https://github.com/dvershinin/trusted-lists) IP sets for easy whitelisting

* declare a CDN of servers and push blocking commands across those server from one place (ansible-like), useful for dynamic blocking

from the central server (honeypot)

* drop outbound connections (shortcut to https://cogitantium.blogspot.com/2017/06/how-to-drop-outbound-connections-with.html) 



See contributing guide for development setup (if not using packages).



## Files



* not in use: `/etc/fds.conf` (info on currently blocked countries or otherwise small data sets suitable for a single config file)

* not in use: `/var/lib/fds`: zone files, (state data) + (info on what is currently blocked) (???)

* `/var/cache/fds`: cachecontrol cache

* `/root/.cloudflare/cloudflare.cfg` Cloudflare authentication