RE: aklug Digest V5 #91

GCI does not generally filter your network access.
I -believe- that only windows filesharing protocols are filtered on
cablemodem
networks, but that is it.

> -----Original Message-----
> From: aklug-bounce@aklug.org [mailto:aklug-bounce@aklug.org]
> On Behalf Of Tony
> Sent: Friday, May 19, 2006 2:50 PM
> To: aklug@aklug.org
> Subject: Re: aklug Digest V5 #91
>
> Hi:
>
> Is anyone having problems with running their webserver. I run
> a web server that is headless and suddenly I am not able to
> access it anymore. My IP address also changed (it was never
> static) so I thought I ask. I think GCI did something to
> their network to disable http access.
>
> Tony
>
> --- aklug@aklug.org wrote:
>
> > aklug Digest Wed, 17 May 2006 Volume: 05 Issue: 091
> >
> > In This Issue:
> > Re: aklug Digest V5 #90
> > RE: Postfix now has support for sendmail's
> milter protocol.
> > Presentation on SimplyMEPIS
> > Scary. Really scary
> > testing 1 2 3...
> >
> >
> ----------------------------------------------------------------------
> >
> > Date: Wed, 17 May 2006 14:49:35 -0800
> > From: barsalou <barjunk@attglobal.net>
> > Subject: Re: aklug Digest V5 #90
> >
> >
> > Care to share this stuff with other milter users? :)
> >
> > Mike B.
> > >
> > > Date: Wed, 17 May 2006 14:02:50 -0800
> > > From: Matthew Schumacher <schu@schu.net>
> > > Subject: Postfix now has support for sendmail's
> > milter protocol.
> > >
> > >> From the postfix mailing list:
> > > X-Bogosity: No, tests=bogofilter,
> > spamicity=0.001616, version=0.92.8
> > >
> > >
> >
> http://archives.neohapsis.com/archives/postfix/2006-05/0750.html
> > >
> > > For those of you who don't know what milter is and
> > why it's the greatest
> > > thing since sliced bread take a look at the docs:
> > >
> > > http://www.milter.org/milter_api/index.html
> > >
> > > Also here is a link to a fantastic milter called
> > mimdefang:
> > >
> > > http://www.mimedefang.org
> > >
> > > Mimedefang is a milter that keeps a pool of perl
> > children around to
> > > filter email. Since this pool is always running
> > there is virtually no
> > > performance hit for filtering the message unless
> > your waiting for ldap,
> > > spamassassin, or some other external filters that
> > mimedefang can call.
> > >
> > > Here is a quick example of how powerful this is:
> > >
> > > This filter_recipient function in mimedefang:
> > >
> >
> ==============================================================
> ===========
> > >
> > > sub filter_recipient {
> > >
> > > # set vals
> > > my ($recipient, $sender, $ip, $hostname, $first,
> > $helo, $rcpt_mailer,
> > > $rcpt_host, $rcpt_addr) = @_;
> > >
> > > # if the user is sending email to a list then
> > check for auth
> > > if( $sender !~ /.+\.net$/ ){
> > > return ('REJECT', 'Sorry, sender must come from
> > a .net domain.');
> > > }
> > > }
> > >
> > >
> >
> ==============================================================
> ===========
> > >
> > > Washes the $sender though a quick regex, and
> > rejects if the sender
> > > doesn't end with .net:
> > >
> > >
> >
> ==============================================================
> ===========
> > > 220 testserver ESMTP Sendmail 8.13.6/8.13.6; Wed,
> > 17 May 2006 13:48:20 -0800
> > > helo fred.com
> > > 250 pleased to meet you
> > > mail from: fred@fred.com
> > > 250 2.1.0 fred@fred.com... Sender ok
> > > rcpt to: user@domain.net
> > > 554 5.7.1 Sorry, sender must come from a .net
> > domain.
> > > quit
> > >
> >
> ==============================================================
> ===========
> > >
> > > As you can see, the ability of the mail system to
> > call an external
> > > filter via socket during the SMTP transaction,
> > combined with a good
> > > milter that lets you do things in perl, pretty
> > much results in endless
> > > flexibility. On one mail system I manage, I have
> > mimedefang stripping
> > > out winmail.dat attachments and re-attaching them
> > with mime. Now I can
> > > get attachments from outlook users. YAY!!!
> > >
> > > schu
> > >
> >
> >
> >
> ----------------------------------------------------------------
> > This message was sent using IMP, the Internet
> > Messaging Program.
> >
> >
> >
> > ----- End forwarded message -----
> >
> >
> >
> ----------------------------------------------------------------
> > This message was sent using IMP, the Internet
> > Messaging Program.
> >
> >
> > ------------------------------
> >
> > From: "Jared Armstrong"
> > <jared.armstrong@hotmail.com>
> > Subject: RE: Postfix now has support for sendmail's
> > milter protocol.
> > Date: Wed, 17 May 2006 15:43:20 -0800
> >
> > Milter also lets you do some great things like
> > dynamic blacklisting,
> > stripping hazardous attachments, quarantining
> > potentially hazardous
> > attachments, greylisting, automatic boilerplate
> > attachment, automatic
> > encryption and decryption, policy adherence (volume,
> > source, destination,
> > size, content, attachments, headers, whatever, or
> > combinations thereof),
> > advanced re-addressing, etc. Also allows you to do
> > these things based on
> > time of day, day of week, etc. Tie your mail
> > transport agent into a
> > database like MySQL and you really see the power of
> > it.
> >
> > Really, the limit is your own imagination and needs.
> >
> > >From: Matthew Schumacher <schu@schu.net>
> > >To: Alaska Linux Users Group <aklug@aklug.org>
> > >Subject: Postfix now has support for sendmail's
> > milter protocol.
> > >Date: Wed, 17 May 2006 14:02:50 -0800
> > >
> > >From the postfix mailing list:
> > >
> >
> >http://archives.neohapsis.com/archives/postfix/2006-05/0750.html
> > >
> > >For those of you who don't know what milter is and
> > why it's the greatest
> > >thing since sliced bread take a look at the docs:
> > >
> > >http://www.milter.org/milter_api/index.html
> > >
> > >Also here is a link to a fantastic milter called
> > mimdefang:
> > >
> > >http://www.mimedefang.org
> > >
> > >Mimedefang is a milter that keeps a pool of perl
> > children around to
> > >filter email. Since this pool is always running
> > there is virtually no
> > >performance hit for filtering the message unless
> > your waiting for ldap,
> > >spamassassin, or some other external filters that
> > mimedefang can call.
> > >
> > >Here is a quick example of how powerful this is:
> > >
> > >This filter_recipient function in mimedefang:
> >
> >=============================================================
> ============
> > >
> > >sub filter_recipient {
> > >
> > > # set vals
> > > my ($recipient, $sender, $ip, $hostname, $first,
> > $helo, $rcpt_mailer,
> > >$rcpt_host, $rcpt_addr) = @_;
> > >
> > > # if the user is sending email to a list then
> > check for auth
> > > if( $sender !~ /.+\.net$/ ){
> > > return ('REJECT', 'Sorry, sender must come
> > from a .net domain.');
> > > }
> >
> === message truncated ===
>
>
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Received on Mon May 22 13:25:11 2006