These are different issues. The time online is usually monitored by your login (radius) server. The bandwidth is available from you squid logs, but need to be mapped back from IP to username (once again your radius server, complicated by dynamic IPs).

perl -ne '($ip,$bytes)=(split)[0,-1];$h{$ip}+=$bytes;END{print "$_\t$h
+{$_}\n" for keys %h}' access_log*
[download]

will give you the total bandwidth used by each IP for your entire log rotation period, so it is not like the data is hard to get. You can estimate the time online from the squid logs but you have to kludge and assume that activity within X time units represents being online for that period. Most people are more interested in the fact that someone is tying up one of the modem pool rather than activity per se when it comes to hours.

---

---

Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!

Titles consisting of a single word are discouraged, and in most cases are disallowed outright.

Read Where should I post X? if you're not absolutely sure you're posting in the right place.

Please read these before you post! —

• How do I compose an effective node title?
• How do I post a question effectively?
• Markup in the Monastery

Posts may use any of the Perl Monks Approved HTML tags:

a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr

You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)

	For:		Use:
	&		&
	<		&lt;
	>		&gt;
	[		&#91;
	]		&#93;

Link using PerlMonks shortcuts! What shortcuts can I use for linking?

See Writeup Formatting Tips and other pages linked from there for more info.