Yes, it is possible to nail into concrete, but it requires special tools and techniques. Concrete is a very hard and dense material, so you can't simply use regular nails or a hammer to drive them into concrete like you would with wood.
To nail into concrete, you will need to use a drill with a masonry bit to create a pilot hole in the concrete. The size of the drill bit should match the diameter of the nails or masonry screws you plan to use. After drilling the hole, you can insert a nail or a masonry screw into the hole and use a hammer or a screwdriver, respectively, to drive it in.
Alternatively, you can use a powder-actuated tool (often referred to as a "concrete nail gun") that uses explosive charges to drive nails into concrete. These tools are typically used in construction and require proper training and safety precautions.
It's important to note that when nailing into concrete, you should consider the specific application and the weight or load the nail will bear. For heavier loads or more secure fastening, using concrete anchors or specialized concrete screws may be more appropriate than regular nails.