A developer reports that newly spawned virtual machines intended for software update testing cannot connect to the required company resource hosting the latest patches. While the virtual machines are part of the designated security group, the connection to a specific internal server is unsuccessful. What is the BEST course of action to resolve this issue?
Reconfigure the virtual machines' network interfaces to use public addressing and bypass internal restrictions.
Increase the rule count in the Access Control List to ensure there are enough entries to cover all virtual machines.
Disable the Access Control List entirely for the affected security group, granting all machines open access to the network.
Audit the Access Control List for the applicable security group and adjust rules to allow traffic to the designated server.
The inability to access the company's internal resource for updates suggests that there might be a restrictive rule in the Access Control List (ACL) associated with the network security group which the virtual machines belong to. The BEST course of action is to audit the ACL rules pertaining to the security group and modify them as necessary to allow traffic to the desired server. This approach targets the specific problem without compromising security by disabling ACLs or diluting the effectiveness of security groups by creating unnecessary additional ones. Increasing the size of the ACL rules list would not address the underlying connectivity issue.
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What is an Access Control List (ACL)?
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What are security groups in cloud computing?
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Why is simply increasing the rule count in an ACL insufficient to fix connectivity issues?