I'm trying to build some firewalls on a LM 8.0 box with kernel 2.4.7-12.3 and iptables 1.2.2. I'm trying to convert some rules I had on a 2.2 box written with ipchains, based on what I read in O'Reilly's "Building Internet Firewalls".
What I can't fathom is why I can type in some rules at a root prompt, but when I put the identical rules in a shell script I get syntax errors! for example, to open up the HTTP port (where XXX is my IP number) and close everything else: iptables -A INPUT -p tcp -s 0/0 --sport 1024: -d XXX --dport 80 -j ACCEPT iptables -A OUTPUT -p tcp -s XXX --sport 80 -d 0/0 --dport 1024: --tcp-flags ACK ACK -j ACCEPT iptables -A OUTPUT -p tcp -s XXX --sport 1024: -d 0/0 --dport 80 -j ACCEPT iptables -A INPUT -p tcp -s 0/0 --sport 80 -d XXX --dport 1024: --tcp-flags ACK ACK -j ACCEPT iptables -A INPUT -i lo -j ACCEPT iptables -A INPUT -p tcp -s 0/0 -d XXX -j DROP When I put those in a bash script, I get errors like: 'ptables v1.2.2: Invalid target name `ACCEPT Try `iptables -h' or 'iptables --help' for more information. I'm sure it's something obvious, but I can't see it. Any ideas? Thanks for any help, Dan Make a difference, help support the relief efforts in the U.S. http://clubs.lycos.com/live/events/september11.asp
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