Your Web server can probably convert dotted numeric IP addresses to
Domain Naming System (DNS) names on the fly, but if you let it do this, your users will wait. Instead, do these lookups separately. Here's the essential algorithm in Perl: Read a line from the log, grab a dotted address, split it into an array, pack it into a 4-byte binary structure, and pass that to the gethostbyaddr function that's bound into most implementations of Perl.
Flexible C++
Matthew Wilson
My approach to software engineering is far more pragmatic than it
is
theoretical--and no language better exemplifies this than C++.
BYTE Digest editors every month analyze and evaluate the best articles from Information Week, EE Times, Dr. Dobb's Journal, Network Computing, Sys Admin,
and dozens of other CMP publications—bringing
you critical news and information about wireless communication,
computer security, software development, embedded systems,
and more!
