Very Computer

Hi there!

We are planning on connecting to the Internet with a permanent ISDN
connection, but are a little concerned about the security issues.
So, we gathered we'll need a firewall between the Internet and the
server.

We are a small company, so we'd like to make this as cheap as
possible, and I understand that a firewall implementation on
a PC with Linux will be the most affordable solution.

What do we need in terms of software and hardware, and what
would be the approximate costs of obtaining this.
I'm a "UNIX/C-guy", so I can do the programming myself.

Thanks,

Nils
--
Nils C. Hertzberg
EDB-Utvikling Konsulent A/S             Home:
Helleveien 126                          Lyngvegen 40
5035 Bergen-Sandviken                   5082 Eidsvaagsneset
NORWAY                                  NORWAY
Tel:    +47-55951581                    +47-55950304
Fax:    +47-55952935
WWW:    http://www.ii.uib.no/~nilsch

Quote:>We are planning on connecting to the Internet with a permanent ISDN
>connection, but are a little concerned about the security issues.
>So, we gathered we'll need a firewall between the Internet and the
>server.

>We are a small company, so we'd like to make this as cheap as
>possible, and I understand that a firewall implementation on
>a PC with Linux will be the most affordable solution.

>What do we need in terms of software and hardware, and what
>would be the approximate costs of obtaining this.
>I'm a "UNIX/C-guy", so I can do the programming myself.

1. IP-masquerading (http://www.xos.nl)
2. TIS Firewall Toolkit (http://www.tis.com)

Do you plan to use a seperate ISDN router or equip the Linux box with
an ISDN card?

You might consider using the Squid caching proxy server
(http://squid.nlanr.net) to save some bandwidth, but this requires
more computing power (Pentium/32Mb).

You could run this on your firewall, make sure you also filter on your
ISDN router, or install this on a machine behind the firewall.

Quote:>Hi there!
>We are planning on connecting to the Internet with a permanent ISDN
>connection, but are a little concerned about the security issues.
>So, we gathered we'll need a firewall between the Internet and the
>server.
>We are a small company, so we'd like to make this as cheap as
>possible, and I understand that a firewall implementation on
>a PC with Linux will be the most affordable solution.
>What do we need in terms of software and hardware, and what
>would be the approximate costs of obtaining this.
>I'm a "UNIX/C-guy", so I can do the programming myself.

Fuego will soon exist in an international version with english and
german support also, but you have to talk to the guys at Signum for
more details.

Quote:>Thanks,
>Nils
>--
>Nils C. Hertzberg
>EDB-Utvikling Konsulent A/S         Home:
>Helleveien 126                              Lyngvegen 40
>5035 Bergen-Sandviken                       5082 Eidsvaagsneset
>NORWAY                                      NORWAY
>Tel:        +47-55951581                    +47-55950304
>Fax:        +47-55952935
>WWW:        http://www.ii.uib.no/~nilsch