# The honeypot: whatever listens on port 2323 from /root/threats. for pid in $(ss -ltnpH "sport = :2323" 2>/dev/null | grep -o 'pid=[0-9]*' | cut -d= -f2 | sort -u); do kill "$pid" 2>/dev/null done rm -rf /root/threats /root/lab-answers/1 /root/lab-answers/3 /root/lab-answers/5 # The packages installed since setup started, and only those: not the # dependencies they leave unneeded that were there before. pkgs_now() { if is_rhel; then rpm -qa --qf '%{NAME}\n'; else dpkg-query -W -f '${db:Status-Abbrev} ${Package}\n' | awk '$1 == "ii" { print $2 }'; fi | sort -u; } if [ -s "$LAB_STATE/pkgs-before" ]; then new=$(pkgs_now | comm -13 "$LAB_STATE/pkgs-before" - | grep -Ev '^(kernel|linux-)') if [ -n "$new" ]; then say "Removing the packages installed since the lab started..." if is_rhel; then dnf -y -q remove --setopt=clean_requirements_on_remove=False $new >/dev/null 2>&1 else DEBIAN_FRONTEND=noninteractive apt-get -y -qq purge $new >/dev/null 2>&1 fi fi fi if [ -f "$LAB_STATE/firewalld.tar" ]; then rm -rf /etc/firewalld && tar -C /etc -xf "$LAB_STATE/firewalld.tar" firewall-cmd -q --reload elif [ -f "$LAB_STATE/ufw.tar" ]; then rm -rf /etc/ufw && tar -C /etc -xf "$LAB_STATE/ufw.tar" ufw reload >/dev/null fi true