Man pages matching name icmpush in section 8:

icmpush.8.en	debian 10 / icmpush
icmpush.8.es	debian 10 / icmpush
icmpush.8.en	debian 11 / icmpush
icmpush.8.es	debian 11 / icmpush
icmpush.8.en	debian 12 / icmpush
icmpush.8.es	debian 12 / icmpush