Block IP Address including ICMP using UFW

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http://serverfault.com – I prefer ufw to iptables for configuring my software firewall. After reading about this vulnerability also on askubuntu, I decided to block the fixed IP of the control server: I don't think I'm vulnerable to this particular worm (and understand the IP could easily change), but wanted to answer this particular comment about how you would configure a firewall to block it. I planned on using: # sudo ufw deny to # sudo ufw deny from However as a test that the rules were working, I tried pinging after I setup the rules and saw that my default ufw sett (HowTos)