i am a home user (you know DSL technology maybe VDSL soon) , since yesterday in daytime i couldn't connect websites of foreign countries. i could connect to Only some local sites (in Turkey) but it would be fine in evening time. The same has occurred today. Then i thought this is sourced from the dns server then changed it and all things got normal! i have three questions : 1- while we want to connect to a site for example in america (gamespot etc.) , (request)it goes out from my home dsl modem then reach ISP in Turkey (over phone wires) after that ? after that from the exit router to America side , request arrives www.gamespot.com ? 2- ımm , this one is different , In time we want to connect to a mail service(www.hotmail.com) , is the process same ? (from exit router of ISP to America ) OR do we have to use a mail server placed in ISP of Turkey? 3- why ARE servers located in ISP?