Владелец другого сервера пытается из-за конкуренции задушить мой)

#!/usr/bin/bash

SET_NAME="vpsblock"
LIST_URL="https://raw.githubusercontent.com/X4BNet/lists_vpn/main/ipv4.txt"
TMP_FILE="/tmp/${SET_NAME}.txt"

for cmd in curl ipset iptables; do
    if ! command -v "$cmd" >/dev/null 2>&1; then
        exit 1
    fi
done

if ! ipset list -n | grep -q "^${SET_NAME}$"; then
    echo "[+] Создаю ipset '${SET_NAME}'..."
    ipset create ${SET_NAME} hash:net
fi


if ! curl -fsSL "$LIST_URL" -o "$TMP_FILE"; then
    exit 1
fi

ipset create ${SET_NAME}_new hash:net -exist
ipset flush ${SET_NAME}_new


while read -r net; do
    [[ "$net" =~ ^#|^$ ]] && continue
    ipset add ${SET_NAME}_new "$net" 2>/dev/null
done < "$TMP_FILE"

ipset swap ${SET_NAME}_new $SET_NAME
ipset destroy ${SET_NAME}_new
rm -f "$TMP_FILE"

if ! iptables -C INPUT -m set --match-set ${SET_NAME} src -j DROP 2>/dev/null; then
    iptables -I INPUT -m set --match-set ${SET_NAME} src -j DROP
fi

echo "[✓] Готово. Заблокированы IP из VPN/VPS списков."