Question

internet sharing iptable

Asked by: teera

    I use linux 9 as a internet sharing it have 3 net work cards It connect to router

   eth0 (192.168.0.1)connect to router
   eth1 (192.168.1.1)conect the account department (4 computers)
   eth2 (192.168.2.1)connect to guest user (4computers)


   both acount depart ment and guest want to use internet account depart ment use win 98 and xp and want to share file to each staff but do not want for gest user to see their sharing f ile  how can i set up iptable
 

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Asked On
2004-01-22 at 04:44:21ID20859026
Tags

9

,

acount

,

iptable

Topic

Linux Setup

Participating Experts
5
Points
250
Comments
12

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Answers

 

by: HasuesPosted on 2004-01-22 at 21:43:02ID: 10181685

Have you verified that each department (each subnet) can ping each netcard that they are configured?
If you wanted, I could take a script, make it your firewall script, and make it where upon boot, it could do what you want.  Also one more thing, when you say Linux 9, Linux is nothing more than a kernel, and the current highest I have seen is 2.6.1.  You are referring to the version of our distribution I imagine, so is it SuSE 9, RedHat 9, Slackware 9 or which that you are using?

Has

 

by: teeraPosted on 2004-01-22 at 23:30:58ID: 10182084

Thank you very much please make a script for me I use redhat 9

yes each account can ping each department

 

by: teeraPosted on 2004-01-22 at 23:30:59ID: 10182085

Thank you very much please make a script for me I use redhat 9

yes each account can ping each department

 

by: m1fcjPosted on 2004-01-23 at 04:26:38ID: 10183232

How do you share your files? Are you using Samba or are the users share files between each other?
Since there is a router (your Redhat) between two subnets, you can block access of one subnet using iptables. If you have a SAMBA server in the middle to act as a file server, you should modify your smb.conf to accept connections from one of the subnets only.

 

by: HasuesPosted on 2004-03-02 at 07:23:31ID: 10495776

Uhh, why did you award me any points when I hadn't even provided the script yet?  Did you get it working?  Would you still like a script to get your stuff working?  I have been quite busy lately, but I hand't forgot about your stuff.  If you do need a better short term solution, might I suggest Webmin?  It would give you a GUI to configure your interfaces as well as set up your filtering rules that would give you what you need.  However, if you do need the script, lemme know.

Has

 

by: elvir911Posted on 2004-03-16 at 03:34:32ID: 10605210

Hi,

I am having the same problem and if you could  submit that scrip.

Thanks a lot.

 

by: HasuesPosted on 2004-03-16 at 07:40:01ID: 10607038

elvir:
  Have you tried out webmin?  It would give you a GUI to configure your network as opposed to editing a script file everytime you need changes.  If you want me to write a script for you, I can, but state out what you want it to accomplish first.

Thanks.

Haz

 

by: space_beyondPosted on 2004-03-18 at 17:56:43ID: 10629795

How I can know if POP3 is active or not? How to configure/setup POP3 for others (for regional offices)?

 

by: HasuesPosted on 2004-03-19 at 20:57:42ID: 10639014

For starters, that is a very vague question.   I don't know if you are asking how to set up a POP3 server for an existing mail server, or if you are talking about receiving POP3 messages through a firewall, and finally, I don't know what regional offices are.  I think this is unrelated to this original thread, and I suggest you ask a question on a new thread.

Haz

 

by: learner79Posted on 2004-03-29 at 01:56:42ID: 10702655

yeah...i have a problem related to this question...

previously I using 2 NIC on redhat9 and the samba connection is succesfull but when I added the 3rd NIC to become 3 NIC on my redhat9, the samba did not work out...

 

by: HasuesPosted on 2004-03-29 at 05:46:59ID: 10703950

Well, actually configuring a firewall isn't in the same realm as configuring a service, such as Samba.  You really should start a thread for this so the search engines will be able to use this site for others who have the same problems.

If I had to guess, you probably had the two NIC's present while you installed Red Hat 9, and you added the other NIC later.  Go in your smb.conf file for Samba (perhaps its in /etc/samba, I don't know where Red Hat keeps it, nor do I know what admin tool they use to administer their services.  But anyway, in the smb.conf file, look for an "interfaces" statement, make sure it has all your nics in that line, not just two.  Secondly, check your "bind interfaces only" statement and see how you have it configured.  Finally, check your "hosts allow" statement to make sure it is allowing the subnet that your new NICi s using.

Also, I suppose it would be a good idea to make sure your new NIC has a configured interface by running "ifconfig".  If its not showing up there, then it certainly won't work.  If you aren't configuring it by boot time, then when Samba starts, it might not bind to that interface unless it knows its present.  There is a wealth of information on how to configure Samba on their website www.samba.org.  The documentation link has a really good amount of documentation, and is also available as a book.

Haz

 

by: learner79Posted on 2004-03-29 at 20:30:20ID: 10710524

Great...now I get it

20120131-EE-VQP-002

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