From the course: Oracle Cloud Infrastructure Foundations
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VCN security
From the course: Oracle Cloud Infrastructure Foundations
VCN security
(gentle music) - Welcome back to this lesson on VCN Security. So within VCN, you have this concept of security list. Think about security list as firewall rules associated with a subnet and applied to all instances inside the subnet. So what does it look like? The security list consists of rules that specify the type of traffic allowed in or out of the subnet. This applies to a given instance whether it is talking with another instance in the VCN or a host outside the VCN. And you can see a couple of entries here. These rules can be stateful or stateless. Stateful means that if traffic is allowed in a particular port, allowed in, it is always allowed out from that port and vice versa. So you can see here, couple of examples. Traffic is coming in at port 80, and the traffic is coming in from anywhere on the web. So that's 0.0.0/0, that's the source, can be anywhere. Protocol is TCP and it's coming at port 80, that's a…
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