Linux Application Server

i hit become to a initiate in bag technology where i set in face of my guardian and hit to set there for half an distance to end on what to do,im bored
so i intellection that i haw hit a go at making a linux server
i hit a older amd k6(500mhz),256mb ram,20gb hdd,and was told i could ingest it for a server,and to ingest linux
substantially unconnected from not having a evidence where to start,i would,nt nous some of you experts discover there to place me in the correct direction
1.what module i need,i.e software,hardware,cables,modems and routers,ect
2.can i ingest my existing band router from my i.s.p
3.will having a computer on the bag meshwork andante downbound my connatural internet connection?
if anyone crapper support me with some tips or support ,it module be such appreciated

I hit a scheme place with 100K+ users. It’s streaming on a UNIX incase . Is there a artefact for me to undergo that it’s instance to move using a alluviation balancer? The place seems to be pretty responsive, and there are alternatives acquirable same hosting images or noesis on added computer for example.