7 Security Measures to Protect Your Servers

7 Security Measures to Protect Your Servers

Introduction

When setting up infrastructure, getting your applications up and running will often be your primary concern. However, making your applications to function correctly without addressing the security needs of your infrastructure could have devastating consequences down the line.

In this guide, we will talk about some basic security practices that are best to configure before or as you set up your applications.

SSH Keys

SSH keys are a pair of cryptographic keys that can be used to authenticate to an SSH server as an alternative to password-based logins. A private and public key pair are created prior to authentication. The private key is kept secret and secure by the user, while the public key can be shared with anyone.

SSH Keys diagram

To configure the SSH key authentication, you must place the user’s public key on the server in a special directory. When the user connects to the server, the server will ask for proof that the client has the associated private key. The SSH client will use the private key to respond in a way that proves ownership of the private key. The server will then let the client connect without a password. To learn more about how SSH keys work, check out our article here.

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From www.digitalocean.com

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