@디엔소프트 DNSOFT Thank you for your query!!!
To secure web servers, a Transport Layer Security (TLS), previously known as Secure Sockets Layer (SSL), certificate can be used to encrypt web traffic. These TLS/SSL certificates can be stored in Azure Key Vault, and allow secure deployments of certificates to Linux virtual machines in Azure.
You can refer to below article for step by step guide to secure a Linux VM using SSL:
Hope it helps!!!
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