I've managed to use below command to block ip address:

/sbin/route add -host reject

How do I view if this is in the list? How do I view all IP's that are currently blocked?


You can view the routing table with:

netstat -r
netstat -rn



will display the current rules. You should see something like this:

[user@host ~]$ sudo /sbin/route
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
KD111111111011. -      !H    0      -        0 -

This isn't too viewer friendly, but the Destination is the IP without any .'s in it. 11 became 011 because it uses 3 places for each octet.

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