Block auth connections with iptables/ipset reading auth.log (rsyslog).
Go to file
2024-04-05 20:14:01 +02:00
config Add blockauth & config files 2024-03-28 12:32:00 +01:00
systemd Add blockauth & config files 2024-03-28 12:32:00 +01:00
blockauth Restart rsyslog when modify auth.log 2024-04-05 14:11:53 +02:00
install.sh Installer & Unninstaller 2024-03-28 12:49:09 +01:00
LICENSE.txt LICENSE (GPL v2.0) 2024-04-05 20:11:23 +02:00
README.md README.md 2024-04-05 20:14:01 +02:00
unninstall.sh Installer & Unninstaller 2024-03-28 12:49:09 +01:00

blockauth

Tool that blocks IPs that make ssh connection attempts by reading the auth.log file (rsyslog).

Install dependencies (Ubuntu/Debian):

sudo apt install iptables rsyslog grep sed

How to install blockauth:

git clone https://gitlab.com/q3aql/blockauth.git
cd blockauth
sudo ./install.sh

How to unninstall blockauth:

git clone https://gitlab.com/q3aql/blockauth.git
cd blockauth
sudo ./unninstall.sh

How to run service:

  • First, edit the file /etc/blockauth/blockauth.conf:

    # Blockauth configuration file
    valid_users="test1 test2"
    always_ip_allowed="192.168.0.1 192.168.0.2"
    blocklist="/etc/blockauth/blocklist.list"
    filelog="/etc/blockauth/blockauth.log"
    
  • Add the service to the system startup and start it:

systemctl enable blockauth
systemctl start blockauth
  • IPs using one of the users in valid_users variable will never be blocked.
  • IPs of always_ip_allowed variable will never be blocked.