[GLLUG] content filtering

Karl Schuttler rexykik at gmail.com
Tue Apr 1 13:50:53 EDT 2008


Cross reference with who was logged on at that time?

On Tue, Apr 1, 2008 at 1:46 PM, Michael George <george at idealso.com> wrote:
>
>  On Tue, April 1, 2008 1:36 pm, Karl Schuttler wrote:
>  > If you need somewhere to store logs and stuff like that, be aware that
>  > you can samba mount stuff with ddwrt and openwrt, so you could just
>  > have it automount the samba partition and store stuff there.
>
>  True.  And for that matter, I can tell it to ship the logs off to a syslog
>  server.  As long as it will log with the detail I'd need.  The downside is
>  that the router (probably) won't know who the user is that is sending the
>  requests.
>
>
>
>  > On Tue, Apr 1, 2008 at 8:34 AM, Michael George <george at idealso.com> wrote:
>  >> I'll look at the openwrt site and see what I can find for modules.  I
>  >>  understand that dd-wrt is based on it and can use its modules, but they
>  >>  will have to be hand-configured.
>  >>
>  >>  Do you know of any "recipies" for setting up firewall rules on a server
>  >> to
>  >>  run transparent/forced proxy?  I'm hoping for a solution that doesn't
>  >>  require me to dig knee-deep into learning firewall rules...
>  >>
>  >>  I'm also quite happy with a multi-layered approach.  I can use OpenDNS,
>  >>  and dansguardian, and the log files.  Putting the system in a public
>  >> place
>  >>  is probably one of the best moves, but there are some physical
>  >>  complexities going in that direction...
>  >>
>  >>  Hmm, I bet I can get a boot CD that will fire up the system and do the
>  >>  same things that LTSP does over wireless...  I'll have to look into
>  >> that
>  >>  option.  Then I can put the system in more places in the house without
>  >>  stringing more ethernet cables...
>  >>
>  >>
>  >>
>  >>  On Mon, March 31, 2008 11:37 pm, Richard Houser wrote:
>  >>  > -----BEGIN PGP SIGNED MESSAGE-----
>  >>  > Hash: SHA1
>  >>  >
>  >>  > Michael George wrote:
>  >>  > | It's time I get more serious about content filtering at home, now
>  >> that
>  >>  > my
>  >>  > | kids are able to get online.
>  >>  > |
>  >>  > | I know there is the dansguardian/squid proxy filter, but I don't
>  >> want to
>  >>  > | jump immediately to an approach that requires another computer.  I
>  >> use
>  >>  > | LTSP for myself and for the kids, so we're all on the same system
>  >>  > | (therefore I can't just use mine as the proxy server).
>  >>  > |
>  >>  > | I've heard of OpenDNS for DNS-level filtering, but I'm not sure if
>  >> that
>  >>  > | will have some loopholes that I hadn't though of...
>  >>  >
>  >>  > For starters, a loophole is that someone can just bypass DNS.  It
>  >>  > wouldn't be convenient, but is still relatively easy to do if your
>  >> kids
>  >>  > are so inclined.  They certainly won't fall into that loophole by
>  >>  > accident, however, so with good parenting, I don't think this would
>  >> be
>  >>  > an issue.
>  >>  >
>  >>  > | I should have thought ahead more when I got my router.  I put in a
>  >>  > Linksys
>  >>  > | WRT54GL running dd-wrt just recently.  I'm happy with it so far,
>  >> and it
>  >>  > | will facilitate a transparent proxy, but it doesn't implement one.
>  >>  > Since
>  >>  > | I only use it for basic router and firewall tasks, it would be nice
>  >> to
>  >>  > | have a content filtering proxy built into it.
>  >>  > |
>  >>  > | Anyone here have opinions/advice?  Thanks!
>  >>  >
>  >>  > I don't know about your kids, but have you looked into providing
>  >> either
>  >>  > a mostly open internet connection (regarding http port 80/443) with
>  >>  > logging for later review OR a whitelist based approach?  I don't know
>  >>  > about dd-wrt, but if you were running OpenWRT that should certainly
>  >> be
>  >>  > doable (especially with the up to 2GB flash storage you can put in
>  >> the
>  >>  > GL).
>  >>  >
>  >>  > Also, since you are running on the same system, you CAN use your
>  >> machine
>  >>  > as the proxy.  When on the same machine, you can use firewall rules
>  >> to
>  >>  > force certain users to use the proxy and allow others open access.
>  >>  > While still on the same machine, I think this is the best option.
>  >>  > -----BEGIN PGP SIGNATURE-----
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>  >>  > Comment: Using GnuPG with Mandriva - http://enigmail.mozdev.org
>  >>  >
>  >>  > iD8DBQFH8a3mUMkt1ZRwL1MRAjDYAJ9+lHH0t+XK+/lT3SCADkxLvok3AgCglh9l
>  >>  > ql2l5Ej5l4zqketet3lSJhk=
>  >>  > =mNuB
>  >>  > -----END PGP SIGNATURE-----
>  >>  >
>  >>
>  >>
>  >>  -Michael George
>  >>
>  >>
>  >> _______________________________________________
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>  >>
>  >
>
>
>  -Michael George
>


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