Hey, I'm trying to install adminmod on Linux server with NS 3. But the server crashes after I install the modified metamod.

Can someone please tell me how to install adminmod and metamod on linux NS server?

Thanks a lot.

Most likely you installed AdminMod and Metamod right. You just need to use a metamod binary compiled for NS 3.0. Check the Modns.org site for a few different ones, look around for one compiled for your system.