As you've discovered there is more to a crawler than socket programming. You don't seem to understand the basics or appreciate what is involved in implementing something like this properly, respecting robots.txt (or even learning what robots.txt is), not hammering servers etc.

I suggest you take the time to learn the basics, review the advice people have given to you on these topics, see Network Programming from the tutorials section.

In reply to Re^3: HTTP request by marto
in thread HTTP request by Sary

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