Linode setup

In short, it is possible to install custom iso in Linode servers. Today, we discussed the actual steps to do the custom iso install in Linode and how our Support Engineers fix the common errors in the process. Never again lose customers to poor server speed! Let us help you. Your email address will not be published. Submit Comment. When you visit any website, it may store or retrieve information on your browser, mostly in the form of cookies.

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Sign Up. Newly created Linode accounts have restrictions on ports 25 , , and Use a StackScript to quickly deploy software platforms and system configuration options to your Linux distribution. You can read more about Stackscripts and how they work in our Automating Deployments with Stackscripts Guide.

If Network Helper is unable to determine the operating system during boot, or if you boot an unsupported operating system, Network Helper will not attempt to write any new configuration files.

See the Network Helper guide to learn which distributions it supports. For Linux and macOS: ssh-keygen -R You may be prompted to make a menu selection when the Grub package is updated on Ubuntu. If prompted, select keep the local version currently installed. Your Feedback Is Important Let us know if this guide made it easy to get the answer you needed.

Provide Feedback. Read other comments or post your own below. You may need to type your password to confirm your intentions. SSH keys allow you to login to your server without a password. When prompted, just accept the default locations for the keyfiles. Now, copy your public key to the server.

This tells the server that it should allow anyone with your private key to access the server. This is why we set a password on the private key earlier. Since all Ubuntu servers have a root user and most servers run SSH on port 22 the default , criminals often try to guess the root password using automated attacks that try many thousands of passwords in a very short time.

This is a common attack that nearly all servers will face. We can make things substantially more difficult for automated attackers by preventing the root user from logging in over SSH and changing our SSH port to something less obvious. This will prevent the vast majority of automatic attacks. Save the file and restart the SSH service:. Make sure your SSH port is below but still not More info here.

Fail2Ban is a security tool to prevent repeated failed login attempts from attackers. It works by monitoring important services like SSH and blocking IP addresses which appear to be malicious i. This way, only the services we choose can communicate with the internet.

This means that the firewall rules will get automatically applied at server startup:. All other ports will be blocked. I like to get an email anytime someone uses sudo.