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In aus.computers.linux on Wed, 04 Nov 1998 19:44:49 GMT
Debbie Seltitz <dseltitz@*no*spam*dipix.com> wrote:
>We are looking to set up a firewall on linux and I would like to get
>some feedback from people who are alrready doing this.  How is it
>working?  Do you have many problems?  I've also heard that there are
>free versions of firewalls. Where would I find this information?  And
>if they are not very reliable does anyone know of a good commercial
>firewall to run on Linux?  Any help or information you can give me
>will be greatly appreciated.

See the TIS "FWTK - Firewall Tool Kit" from Trusted Information
Systems - www.tis.com.  Search on fwtk or Firewall TOol Kit.

As to how easy it is to set up, I have done two of them and
found it easy to do following the documentation, but I can't
say how easy it would be for anyone else.  Depends on how
skilled you are in general concepts, what you know about mail
and web and TCP/IP and DNS.  You don't need to know heaps
but if you know nothing you won't get far.


Whether you use a software solution or the ipfwadm packet filter 
depends on a number of things.  I preferred the software because
oif the logging, if you don't need logging or password authentication
then ipfwadm may be enough for you.

Zebee
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  System Administrators in technical as well as professional issues.

IPFWADM is also very simple to set up if you only want a simple firewall




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Zebee Johnstone <zebee@zip.com.au> wrote in message
slrn741g49.a6c.zebee@zipper.zip.com.au...
>In aus.computers.linux on Wed, 04 Nov 1998 19:44:49 GMT
>Debbie Seltitz <dseltitz@*no*spam*dipix.com> wrote:
>>We are looking to set up a firewall on linux and I would like to get
>>some feedback from people who are alrready doing this.  How is it
>>working?  Do you have many problems?  I've also heard that there are
>>free versions of firewalls. Where would I find this information?  And
>>if they are not very reliable does anyone know of a good commercial
>>firewall to run on Linux?  Any help or information you can give me
>>will be greatly appreciated.
>
>See the TIS "FWTK - Firewall Tool Kit" from Trusted Information
>Systems - www.tis.com.  Search on fwtk or Firewall TOol Kit.
>
>As to how easy it is to set up, I have done two of them and
>found it easy to do following the documentation, but I can't
>say how easy it would be for anyone else.  Depends on how
>skilled you are in general concepts, what you know about mail
>and web and TCP/IP and DNS.  You don't need to know heaps
>but if you know nothing you won't get far.
>
>
>Whether you use a software solution or the ipfwadm packet filter
>depends on a number of things.  I preferred the software because
>oif the logging, if you don't need logging or password authentication
>then ipfwadm may be enough for you.
>
>Zebee
>--
>SAGE-AU: The System Administrator's Guild. www.sage-au.org.au
>  To advance the profession of System Administration by raising
>  awareness of the need for System Administrators, and educating
>  System Administrators in technical as well as professional issues.

In article <3644ae65.21407802@news.magmacom.com>,
	dseltitz@*no*spam*dipix.com (Debbie Seltitz) writes:
> We are looking to set up a firewall on linux and I would like to get
> some feedback from people who are alrready doing this.  How is it
> working?  Do you have many problems?  I've also heard that there are
> free versions of firewalls. Where would I find this information?  And
> if they are not very reliable does anyone know of a good commercial
> firewall to run on Linux?  Any help or information you can give me
> will be greatly appreciated.
> 
> Thanks in advanced, Debbie


Debbie,

Firewalls are reasonably easy to set up under Linux. Iam using
the newer IP-CHAINS programs which replaces IPFWADM in 2.1.108
and newer Linux kernels.

Ip-Chains will be mandatory in Linux using the soon-to-be-released
2.2 kernels.  So it may pay up to forget IPFWADM and go straight
to IP-Chains.

Have a look at:
Paul Russell (the local maintainer) at: 
http://www.adelaide.net.au/~rustcorp/linux/ipchains/

Hope this assists you,
Grahame



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