Prop surfing/killing & climbing

Hello guys,

can anyone tell me how I can disable prop kill, surfing and climbing? I have google it, but it dont found anything.
Thank you very much for you help.

You can’t do it by default, but there are various addons that prevent these things.

Prop-Kill
Prop Abuse (Could be used for the other 2)

There are no free tools?

You might find some one garrysmod.org but those are most likely outdated.