accept some IP/users deny others

Hi friends...

I am using exim4 (exim4-daemon-light) 4.52-1 in my Sarge, and I have a
little
LAN (PC1:192.168.1.1, PC2:192.168.1.2, PC3:192.168.1.3) the first is my box.

Please, how do I accept any local mail in my LAN, but just
PC2:192.168.1.2
can send mails to Internet? and if you can help me with the same but only few
users can send to Internet.

I hope that you can help me, it is urgent for me.

Thanks

--
Linux User Registered #232544
Jabber : pepo@jabberes.org
ICQ : 337889406
GnuPG-key : www.keyserver.net
---------------- -------------------------------
dum loquimur, fugerit invida
aetas: carpe diem, quam minimum credula postero.


_____________________________________
Este mensaje ha sido analizado por el
Servicio Gratuito de Protección contra Virus de E-mail de EtapaOnLine.

-
To unsubscribe from this list: send the line "unsubscribe linux-newbie" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.linux-learn.org/faqs

Re: accept some IP/users deny others

pepo wrote:
> Hi friends...
>
> I am using exim4 (exim4-daemon-light) 4.52-1 in my Sarge, and I have a
> little
> LAN (PC1:192.168.1.1, PC2:192.168.1.2, PC3:192.168.1.3) the first is my box.
>
> Please, how do I accept any local mail in my LAN, but just
> PC2:192.168.1.2
> can send mails to Internet? and if you can help me with the same but only few
> users can send to Internet.
>
> I hope that you can help me, it is urgent for me.
>
> Thanks
>

Hi, pepo:

You did not send any information about 'Internet', only about three (3)
computers IP addresses on a 'little LAN'. Yours is .1 and is running a
version of 'exim'. I would suggest that, if your LAN used a
'router/firewall' to obtain access the the internet, that the firewall
be adjusted to not allow email ports (25,110) to flow )to,from) the
internet from the selected host(s). If the other computer that you want
not to be able to send email to the internet is not using the 'exim' on
your workstation, the solution does not lie within the information you
presented.

HTH, Chuck


-
To unsubscribe from this list: send the line "unsubscribe linux-newbie" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.linux-learn.org/faqs

Re: accept some IP/users deny others

On Saturday 03 September 2005 05:39, pepo wrote:
> Hi friends...
>
> I am using exim4 (exim4-daemon-light) 4.52-1 in my Sarge, and I
> have a little
> LAN (PC1:192.168.1.1, PC2:192.168.1.2, PC3:192.168.1.3) the first is my
> box.
>
> Please, how do I accept any local mail in my LAN, but just
> PC2:192.168.1.2
> can send mails to Internet? and if you can help me with the same but only
> few users can send to Internet.

I have been waiting for a responce to your mail from others to see if i can
really help you, i saw one reply to which you did not eply to so i presume
you may not have understood what was said/asked...


Firstly, your mail is somewhat lacking in detail, detail as to just what you
have as LAN and for all, just what you want to do.

As i see it, you want mail on 192.168.1.2 (your machine) correct.???.

You do not say if you are going to be collecting mail from your provider or
you want to run sendmail on 192.168.1.2 to listen for incomming connections,
(not such a good thing to do thesedays with all that spam around), leave that
to your provider...

Let me say this.

A normal "Local Area Network", (LAN) would have a router possably in this case
192.168.1.1, that computer would be connected to the internet with another
NIC and have a set of firewall rules via the command iptables, now i can only
guess here but you said "sarge" meaning i presume debian.
I have no knowlage of how debian sets it default iptables rules or even what
frontend for iptables it uses, what i can tell you is that iptables decides
who does and who does not enter your computer or who passes thro' it via the
rules which you or some frontend defines.

A good place to start leaning about iptables is;
http://www.linuxguruz.com/iptables/
There you will find many example firewalls for all sorts of needs.

The basic rule for a home LAN is to Masquarde all traffic from inside to the
outside with the Inet IP# of the router, to do that one needs to use a basic
masquerading firewall. (I am sure thats what debian sets as a default as most
all distro's do the same thing).

Your distro, will no doubtably have some or other GUI interface for doing such
a job.

If you need more help please explain in more detail just what you want and
what you are using.

>
> I hope that you can help me, it is urgent for me.
>
> Thanks

--
Regards Richard.

PS, spelling mistakes are free in this mail.
-
To unsubscribe from this list: send the line "unsubscribe linux-newbie" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.linux-learn.org/faqs

Re: accept some IP/users deny others

Hi...
First thanks for your help and sorry for the time to responce, I was =
so=20
busy.

I wanna send/receive any mails from any host inside my LAN, but only=20
PC2:192.168.1.2, PC4:192.168.1.4 and PC6:192.168.1.6 can send mails to=20
Internet like smarthost, so the others PCs just inside the LAN.

Thanks again

El Mar 06 Sep 2005 14:15, Richard Adams escribi=F3:
> On Saturday 03 September 2005 05:39, pepo wrote:
> > Hi friends...
> >
> > I am using exim4 (exim4-daemon-light) 4.52-1 in my Sarge, a=
nd I
> > have a little
> > LAN (PC1:192.168.1.1, PC2:192.168.1.2, PC3:192.168.1.3) the first i=
s my
> > box.
> >
> > Please, how do I accept any local mail in my LAN, but just
> > PC2:192.168.1.2
> > can send mails to Internet? and if you can help me with the same bu=
t only
> > few users can send to Internet.
>
> I have been waiting for a responce to your mail from others to see if=
i can
> really help you, i saw one reply to which you did not eply to so i pr=
esume
> you may not have understood what was said/asked...
>
>
> Firstly, your mail is somewhat lacking in detail, detail as to just w=
hat
> you have as LAN and for all, just what you want to do.
>
> As i see it, you want mail on 192.168.1.2 (your machine) correct.???.
>
> You do not say if you are going to be collecting mail from your provi=
der or
> you want to run sendmail on 192.168.1.2 to listen for incomming
> connections, (not such a good thing to do thesedays with all that spa=
m
> around), leave that to your provider...
>
> Let me say this.
>
> A normal "Local Area Network", (LAN) would have a router possably in =
this
> case 192.168.1.1, that computer would be connected to the internet wi=
th
> another NIC and have a set of firewall rules via the command iptables=
, now
> i can only guess here but you said "sarge" meaning i presume debian.
> I have no knowlage of how debian sets it default iptables rules or ev=
en
> what frontend for iptables it uses, what i can tell you is that iptab=
les
> decides who does and who does not enter your computer or who passes t=
hro'
> it via the rules which you or some frontend defines.
>
> A good place to start leaning about iptables is;
> http://www.linuxguruz.com/iptables/
> There you will find many example firewalls for all sorts of needs.
>
> The basic rule for a home LAN is to Masquarde all traffic from inside=
to
> the outside with the Inet IP# of the router, to do that one needs to =
use a
> basic masquerading firewall. (I am sure thats what debian sets as a d=
efault
> as most all distro's do the same thing).
>
> Your distro, will no doubtably have some or other GUI interface for d=
oing
> such a job.
>
> If you need more help please explain in more detail just what you wan=
t and
> what you are using.
>
> > I hope that you can help me, it is urgent for me.
> >
> > Thanks
>
> --
> Regards Richard.
>
> PS, spelling mistakes are free in this mail.

--=20
Linux User Registered #232544
Jabber : pepo@jabberes.org
ICQ : 337889406
GnuPG-key : www.keyserver.net
---------------- -------------------------------
dum loquimur, fugerit invida
aetas: carpe diem, quam minimum credula postero.


_____________________________________=20
Este mensaje ha sido analizado por el
Servicio Gratuito de Protecci=F3n contra Virus de E-mail de EtapaOnLine=


-
To unsubscribe from this list: send the line "unsubscribe linux-newbie"=
in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.linux-learn.org/faqs