ssh argument command not passed

Question

Doing this command:

iptables -I INPUT -d xxx.xxx.xxx.xxx -p tcp --dport 80 -m string --to 70 \ --algo bm --string 'GET /w00tw00t.at.ISC.SANS.' -j DROP

I got this error on ssh console: "bad argument (--algo)". How can solve this?

Answer 1

It should be:

iptables -I INPUT -d xxx.xxx.xxx.xxx -p tcp --dport 80 -m string --to 70 \
--algo bm --string 'GET /w00tw00t.at.ISC.SANS.' -j DROP

or:

iptables -I INPUT -d xxx.xxx.xxx.xxx -p tcp --dport 80 -m string --to 70 --algo bm --string 'GET /w00tw00t.at.ISC.SANS.' -j DROP

The backslash (\) is used when you want to write a shell command on multiple lines.