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#1
July 23rd, 2002, 10:56 AM
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Internet Access
Right now I have a network of windows 2000 computers and a computer running linux is connected to the net. Each win2k has a unique IP. How do I make it so certain ips can only access the net (but still have pop3 access, which is on linux computer) at certain times of day?
-Nick
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#2
July 23rd, 2002, 12:59 PM
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make cron entries like this:
0 8 * * * /usr/local/bin/reconfig_firewall.sh morning 0 12 * * * /usr/local/bin/reconfig_firewall.sh afternoon 0 14 * * * /usr/local/bin/reconfig_firewall.sh morning (starts this script at 08:00, 12:00 and 02:00pm) and in /usr/local/bin/reconfig_firewall.sh Code:
#!/bin/sh case "$1" in morning) # only me and my boss are allowed to access the net ipchains -F forward ipchains -P forward DENY ipchains -A forward -s 192.168.1.1 -d 0/0 -j ACCEPT ipchains -A forward -s 192.168.1.2 -d 0/0 -j ACCEPT ;; afternoon) # anyone can access the net during noon break ipchains -F forward ipchains -P forward DENY ipchains -A forward -s 192.168.1.0/24 -d 0/0 -j ACCEPT ;; *) echo "Syntax: $0 morning|afternoon" esac do you get the idea? (services on the box (=pop3) are not affected by the "forward" chain.)
__________________
-- Manuel Hirsch - Linux, FreeBSD, programming, administration articles, tutorials and more. Last edited by M.Hirsch : July 23rd, 2002 at 01:01 PM.
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