Hi friends

I tried to host my website in own my computer (only for testing )by the help of god and people like you ,help me to achive this one ......I used virtual hosting on apache but when when I give my website name with out www it will shown my www folder on my laptop , is this cause any vulnerable of my Laptop ?if it is vulnerable ? How to know or where I can see hackers trying to access my laptop .... Hope some one will ping me soon Thanks