Welcome to the tag category page for Firewall!
OPNsense is an open source, FreeBSD-based firewall and routing software developed by Deciso, launched in January 2015 as a fork of pfSense. It offers features such as intrusion detection, application control, web filtering, and anti-virus. It includes most of the features available in expensive commercial firewalls, and more in many cases. It is easy to configure and use and has valuable features such as reporting, the Sensei plugin, and firewall capabilities. OPNsense is a free, open-source solution ready to protect networks from intrusion. It offers everything needed to secure a network and provides data center security appliances that now come with a dual power supply and SFP28. In comparison to pfSense's user interface, OPNsense is easier to use and more logical.
Zero Trust is a security model that eliminates implicit trust and continuously validates every stage of access in an organization. It aims to reduce cybersecurity threats, such as ransomware, by assigning the least required access needed to perform specific tasks. Authentication and authorization are discrete functions that cybersecurity teams perform before allowing access to networks and systems. The model has three main tenets: risk awareness, least privileged access, and continuous access verification. The five pillars of Zero Trust are identity, device, network, application workload, and data. The strategy lays out four main goals: zero trust culture adoption, DoD information systems secured and defended, technology acceleration, and zero trust enablement. An example of a Zero Trust policy is allowing granular access only to the data and functionality of an application that a specific entity requires.
Data filtering is the process of examining a dataset to exclude, rearrange, or apportion data according to certain criteria. This can involve refining data sets for analysis, hiding unwanted data temporarily, or creating subsets of data based on filter criteria. In IT, data filtering can refer to various strategies and solutions for refining data sets. Filtering in Excel allows for sorting and organizing data within a spreadsheet. Different types of data filtering include BoolFilter, RangeFilter, DateRangeFilter, ChecklistFilter, and CalendarFilter. Overall, data filtering is a valuable tool for organizing, analyzing, and managing data effectively.
