I recently found out about this:
https://code.google.com/p/logstalgia/
an interesting program to visually display apache traffic in real time.
It reminds me of glTail:
another cool “toy”.
Analyzing Apache Log Files
List Client IP and Count Hits
awk -F'[ “]+’ ‘$7 == “/” { ipcount[$1]++ } END { for (i in ipcount) { printf “%15s – %d\n”, i, ipcount[i] } }’ access.log
List Client IP and RDNS
cat access.log | awk ‘{print $1}’ | logresolve