[K12OSN] Re: Limit Network Access by time

[Jim Kronebusch]

Thanks everyone, I think I have more than enough suggestions to achieve
what I want.  This list is awesome.

Thanks again.

-----Original Message-----
From: k12osn-admin at redhat.com [mailto:k12osn-admin at redhat.com] On Behalf
Of rob focus
Sent: Wednesday, February 25, 2004 5:40 PM
To: k12osn at redhat.com
Subject: [K12OSN] Re: Limit Network Access by time


another way is to add an iptables rule blocking
the red interface(external) and toggle it
on/off using crontab.
--
#crontab -e (on one line)
0 22 * * * /sbin/iptables -A CUSTOMINPUT -i $RED_DEV -s 192.168.1.0 -j
REJECT 0 6 * * *  /sbin/iptables -D CUSTOMINPUT -i $RED_DEV -s
192.168.1.0 -j REJECT

--
or Block everything except the above network by replacing REJECT with
ACCEPT and adding -A CUSTOMINPUT -i $RED_DEV -j REJECT , first. if your
directors are on the same network use a subnet mask to limit the ip's to
the addresses you want to block.

http://www.troubleshooters.com/lpm/200305/200305.htm#_Blocking_a_Subnet
http://www.mkssoftware.com/docs/man1/crontab.1.asp

robert


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