set locally. others can ping my nameserver but can't view the content of my url

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http://www.linuxquestions.org – gateway is content of resolv.conf is search apc.com nameserver nameserver>>> i remove it nameserver>>>i remove it no problem with nslookup and dig can querry my server. They can ping my domain name and hostname. I can view the content in my browsers url but others can't (HowTos)