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vanda-scw
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Jun 12, 2026
| ## Stateless security groups | ||
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| Stateless security groups strictly apply the default policy and inbound/outbound rules, regardless of whether a connection is initiated from your Instance or not. This is useful if you know exactly which ports you will always require for your Instance, e.g. port `22` for SSH. You can make your security group stateless, define a rule to allow traffic on port `22` and block incoming traffic on other ports regardless of whether a connection is initiated from your Instance on this port. [Learn how to use security groups](/instances/how-to/use-security-groups/). | ||
| Stateless security groups do not track connection states; they evaluate every single packet entirely on its own merits. If you define a rule to allow inbound traffic on a specific port (e.g., port 22 for SSH), you must also ensure your outbound rules explicitly permit the response traffic to flow back out to the client. |
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Suggested change
| Stateless security groups do not track connection states; they evaluate every single packet entirely on its own merits. If you define a rule to allow inbound traffic on a specific port (e.g., port 22 for SSH), you must also ensure your outbound rules explicitly permit the response traffic to flow back out to the client. | |
| Stateless security groups do not track connection states; they evaluate every single packet based only on its own characteristics. If you define a rule to allow inbound traffic on a specific port (e.g., port 22 for SSH), you must also ensure your outbound rules explicitly permit the response traffic to flow back out to the client. |
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I'm suggesting this change only for the sake of non-native speakers of English. Otherwise, there's nothing wrong with the sentence.
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