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@@ -1651,6 +1651,36 @@ Then you can enable it like any other app:
sudo ufw allow plexmediaserver sudo ufw allow plexmediaserver
``` ```
#### Automatic IP-Blacklisting
The [IPSum](https://github.com/stamparm/ipsum) project is hosting a blacklist of known malicious IP addresses which gets updated daily. You can automatically import these with UFW and [these scripts](https://github.com/sysadt/UFW-Automatic-IP-Blacklisting).
Create a directory for your blacklist and the scripts:
```
mkdir /opt/ip-blacklist
```
Download the scripts to the created directory:
```
wget https://raw.githubusercontent.com/sysadt/UFW-Automatic-IP-Blacklisting/main/ip-blacklist.sh -P /opt/ip-blacklist
wget https://raw.githubusercontent.com/sysadt/UFW-Automatic-IP-Blacklisting/main/update-blacklist.sh -P /opt/ip-blacklist
```
Change permissions:
```
chmod 700 /opt/ip-blacklist/ip-blacklist.sh
chmod 700 /opt/ip-blacklist/update-blacklist.sh
```
Add the scripts to a daily cronjob:
```
sudo crontab -e
```
```
0 6 * * * /opt/ip-blacklist/update-blacklist.sh
10 6 * * * /opt/ip-blacklist/ip-blacklist.sh
```
([Table of Contents](#table-of-contents)) ([Table of Contents](#table-of-contents))
### iptables Intrusion Detection And Prevention with PSAD ### iptables Intrusion Detection And Prevention with PSAD