Ok, I tried Search. There's one thread similar to this but I'm not sure if the prolem was solved. In my case, I can open the default page in the server by http://localhost/ but I get the error Host not found if I access from another PC running WinXP. I'm just in a LAN by the way. The two PC's, web server (RH Linux Enterprise ES 2.1) and client are in front of me. I can actually ping from both PC's but using IP address only.