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Old 04-07-2004, 07:16 AM   #1
citizen_x
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Exclamation spam filter


good day

i have an e-mail server setup with linux 7.2 < with a terminal interface only, there is no GUI >
the problem's im having are.

1) bandwidth is been used by people surfing the net < anyway of limiting this >

2) need to restrict web sites < most of the time people R surfing for porn during office hours, taking up our bandwidth and makeing e-mails delayed >

3) spam < some people seem to be getting about 150 e-mails from porn sites and advertising sites each so its conjesting our system >

our main problem s the bandwidth with people downloading porn and over 150 e-mails each it seems to have slowed down our work.

takes us some times 2 days to download norton updates.

always X < am a beginer so need detailed information on how to do this if any one has any ideas >
 
Old 04-07-2004, 07:28 AM   #2
rob-n
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well i think the answer to ur question no. 2 is to block all the websites that are not allowed to be surfed to in your router. Unless u are using that email server as a router, then u need to block them on there.
Oh yeah, there is no linux 7.2, the kernel is only at 2.6.5. u probably mean a distribution like suse or redhat
 
Old 04-07-2004, 07:48 AM   #3
citizen_x
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thanx

thanxs for the info.

i noticed that to about the 7.2 it is red hat.
how would i configure the server to regect the un wanted sites ??

X
 
Old 04-12-2004, 03:52 AM   #4
rob-n
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i think you mean router, cause a server, mail or whatever will not reject sites, because the web access dosent even go through a server. You probably want to got to your routers, manufacturers web site and figure out how to get into the router config, either by web acces (usually http://the.ip.of.router) or telnet.. then you have to connect like telnet the.ip.of.router.

hope that could help.
 
Old 04-13-2004, 12:43 AM   #5
citizen_x
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thanks ;-)
 
Old 04-13-2004, 02:08 AM   #6
Electro
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You can setup LINUX to make a few virtual IP address. Then use something like iptables or shorewall to send to the right virtual IP address. iptables can also reject ip addresses or MAC addresses. To scan for spam, you can setup SpamAssassin.

To setup iptables easier, use Firestarter. Then put firewall.sh in your runtime scripts.

Yes, you can limit bandwidth but LINUX will just put a timer like every 100 ms to get a packet instead of every 1 ms.

If your clients are eating up bandwidth, you can try to get another pipe for only system updates.

Sorry, I do not know how to setup a virtual IP address, SpamAssassin, and limiting bandwidth. You can read through LINUX Document Project and other LINUX sites to get an idea of how to setup those services.

The only way I know is taking control who can access the internet and who can not.
 
  


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