Inside the virtual machine:

1. Block PING to 193.226.19.42:
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	-> Test ping before block: "ping 193.226.19.42"
	-> Run iptables command as root: "iptables -A OUTPUT -d 193.226.19.42 -p icmp -j DROP" -> this will terminate ping to that destination
	-> Afte test, remove command with "iptables -D OUTPUT -d 193.226.19.42 -p icmp -j DROP"

2. Block Insecure Web to 193.226.19.42:
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	-> Test insecure web before block: "http://davos.umfst.ro/"
	-> Run iptables command as root: "iptables -A OUTPUT -d 193.226.19.42 -p tcp --dport 80 -j DROP" -> this will terminate insecure web access to that destination
	-> Afte test, remove command with "iptables -D OUTPUT -d 193.226.19.42 -p tcp --dport 80 -j DROP"

<> Remove all iptables commands by flushing: "iptables -t filter -F"
<> Change default policy: "iptables -P CHAIN ACCEPT/REJECT/DROP"