Learn how to add, remove, enable, and disable firewalld rules & zones in this guide.
The firewall is essential for controlling the flow of network traffic in and out of the Linux server.
It enables users to control incoming network traffic on h...
OPNsense is an open-source, FreeBSD-based firewall and routing security software that also acts as a DNS resolver for all of your desktops and mobile devices. Learn how to configure the OPNsense DNS resolver to encrypt all DNS queries to protect from eavesdropping and increase your privacy and security online in this tutorial.
A content filtering proxy server, helps distribute Internet access while providing control to the administrators over the content delivered. It is usually used in organizations or schools to ensure that Internet usage conforms to the local acceptable use policy. A content filtering proxy must necessarily accommodate the demands of granular rules for Internet access privileges and restrictions across an enterprise.
Here's a quick step-by-step guide on setting up a proxy server. It's great to have such functionality freely available. But like all tools, how much knowledge do you think you need to make it work consistently and effectively?
This article looks at some of the decision considerations in selecting a Linux-based firewall, including both considerations specific to firewall technology and general considerations about understanding Linux-based and open source options.