Hi
I try to create some rules to detect an outgoing traffic from my debian jessie that is not from my IP or loop. Can you please take a review this little script let me know what you think (okay, has bugs ...).
Thanks,
#!/bin/bash
/sbin/iptables -N C_OUT_N_LOCAL
/sbin/iptables -N C_OUT_N_LOCAL_LO
/sbin/iptables -A C_OUT_N_LOCAL -m limit --limit 2/min -j LOG --log-prefix "PK: output not local : " --log-level 4
LO_IP="127.0.0.1"
MY_IP="192.168.0.4"
/sbin/iptables -I OUTPUT -p ALL ! -s $LO_IP -j C_OUT_N_LOCAL_LO
/sbin/iptables -A C_OUT_N_LOCAL_LO -p ALL ! -s $MY_IP -j C_OUT_N_LOCAL
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