Fake Ports mit socat

Socat installieren

• apt install socat

Skript erstellen

• vim /usr/local/sbin/fake-ports.sh

#!/bin/bash
IP="172.24.24.100"
PORTS=(25 389 465 636 139 88  993 445)

for PORT in "${PORTS[@]}"; do
    /usr/bin/socat -v TCP-LISTEN:$PORT,bind=$IP,reuseaddr,fork - &
done

wait

Unit erstellen

• vim /etc/systemd/system/fake-ports.service

[Unit]
Description=Fake Port Listener with socat
After=network.target

[Service]
Type=simple
ExecStart=/usr/local/sbin/fake-ports.sh
Restart=on-failure
User=root
CapabilityBoundingSet=CAP_NET_BIND_SERVICE
AmbientCapabilities=CAP_NET_BIND_SERVICE

[Install]
WantedBy=multi-user.target

Unit enablen

• systemctl daemon-reload
• systemctl enable --now fake-ports.service
• systemctl status fake-ports.service