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Hostwinds Tutorials

Tools and instructions enabling you to maximize the potential of your Hostwinds product and service experience.

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Firewall Tutorials


What is CSF? CSF stands for ConfigServer Security & Firewall. CSF is a Stateful Packet Inspection (SPI) firewall. It is used primarily used to limit types of connections and public access. This guide goes over how to check if CSF is running and how to disable it on CentOS 7....

What is RDP? RDP (Remote Desktop Protocol) is a network communications protocol developed by Microsoft, allowing users to connect to another computer. The remote desktop protocol is available for Windows, Linux, and Mac operating systems. With Remote Desktop Protocol, one...

A Firewall is an important tool for security in your server, choosing who can and cannot enter your Hostwinds server. The Firewall manager has a simple layout to add, delete, and edit any firewall rules. This guide will go through all of these options and how to operate each...

By default, the built-in Windows Firewall will block inbound and outbound traffic from unknown applications. If, after installing and running a program on your Windows server, the application seems to not be accessible externally over the internet, you may need to allow the...

By default, Hostwinds does not block any ports on your VPS. However, this article will discuss the Windows built-in firewall and how to open and close ports. This article is intended for Hostwinds clients who need to open or block a port to their Windows VPS, and we will go...

Uncomplicated FireWall, or UFW for short, is a piece of software that manages your default Netfilter firewall on your Ubuntu system. The following steps will walk you through the process of adding different rules that will secure your server. Setup Default Rules When...

The TCP port for FTP is normally set to 21 as a default. If you're having trouble connecting with FTP, it may be blocked by your firewall. Check your firewall's logs to see if it's been blocking connecting to or from the server IP you're trying to connect to. To see if your...

What are IPTables? IPTables is an extremely flexible command-line-based firewall utility built specifically for Linux distros. IPTables uses policy chains to allow or block traffic. When a connection is being established on your server, IPTables will identify a rule in its...