Hi Florent, No, two VMs in the same security group will have the same rules applied to them. So if they both allow outbound port 22, they won't be able to talk over SSH, as neither allows inbound SSH.
If your network was created with a default allow, then they will be able to communicate over all ports until you start applying rules to them. Paul. [email protected] www.shapeblue.com Amadeus House, Floral Street, London WC2E 9DPUK @shapeblue -----Original Message----- From: Florent Paillot <[email protected]> Sent: 04 November 2019 16:01 To: cs users <[email protected]> Subject: Security Groups default behavior Hello, I'm looking for the default behavior for Security Groups when using a shared network with SG support. Can't find it in the docs. Are two VM in the same SG implicitly allowed to communicate with each other ? Maybe i'm wrong but it's seemed to be the case with 4.9.3 (KVM) but not anymore with 4.11.3 (KVM). Thanks
