DNSBL for Internet Content Filtering Utilizing pfSense as The Next Generation of Opensource Firewall Alby Al Mugni Departement of Informatics Muhammadiyah University of Sukabumi Sukabumi, Indonesia mugnialby@gmail.com Muhammad Firdaus Herdiansah Departement of Informatics Muhammadiyah University of Sukabumi Sukabumi, Indonesia firdausherdiansah@gmail.com Muhammad Ridwan, S.Kom., M.T. Departement of Informatics Muhammadiyah University of Sukabumi Sukabumi, Indonesia ridthone@gmail.com Muhammad Gelar Andhika Departement of Informatics Muhammadiyah University of Sukabumi Sukabumi, Indonesia gelarandhika@gmail.com Abstract—The internet at this time has become an important part of everyday life. From an early age, children already introduced to a digital environment and used to use internet connected devices for various activities such as learning, entertainment, have a chat with family and friends. Apart from convenience and benefits, the Internet also poses a threat to children and adolescents, from inappropriate content such as pornography, violence, narcotics culture, exposure to online pedophiles or dangerous behavior that can make children unsafe. The role of parents in monitoring the online activities of children and adolescents becomes very important. The market offers a variety of control systems for parents who can block or filter content, manage usage, monitor activities, set boundary lines, and quota. This research was conducted to collect basic information about several sites that are often accessed by children with the aim of implementing an internet content screening program utilizing DNSBL and pfSense to increase parental awareness of various technologies that can be used to protect children from the dangers of cyberspace, providing various information for parents of tools that can protect children, and as a form of socialization about the importance of children internet usage monitoring by parents. The study was conducted in the city of Sukabumi by using 30 respondents who were parents of children aged 3-11 years. The most accessible site for children in the city of Sukabumi is Youtube. Therefore, preventive measures are needed to reduce the negative impact caused by filtering content. Keywords: DNSBL, pfSense, Filter, Website. I. INTRODUCTION Information can be considered as a message contained in a data where the message can be processed into knowledge [1]. Public information is disclosed or disseminated without any limitation on content, audience, or publication time [2]. Access to excess information given to users will result in deviation outside of the actual interests [3]. Financial and security associated advantages are both offered by cloud storaging. In the perspective of financial, cheap maintenance cost of the cloud’s virtual resources system are more popular than dedicated physical resources systems that are associated with every workstation and networks. On the security side, the cloud offered secure archives storaging which reduces accidental erasure or hardware crashes risks that can damage the archives, mainly because a different method is implemented by the cloud which is duplicating and storing it in multiple physical platforms; even when this method duplicated much more copies of the archives, the cloud will always function as normal even if one or more physical platforms go offline. If one physical platform crashes, the cloud will duplicate the archives on other physical platforms in the cloud. The internet become the one of many methods to access the information or archives stored in a cloud [4]. The internet is an easy place to find various kinds of content that is free and always available. The internet is a global computer network system that is interconnected and uses an internet standard protocol (TCP / IP) to serve billions of users worldwide [5]. Sites that are created on the Internet are generally for good purposes, namely improving the standard of living for various needs, both economic, social, culture, information, politics, and others. The internet is like two sides of the same coin, which there are also a lot of sites that are considered to display negative contents such as pornographic content [6]. The number of radical and pornographic sites in Indonesia is currently growing rapidly. Until 2019, the Ministry of Communication and Information (Depkominfo) has blocked around 773,716 radical and pornographic sites, but the number of sites that have not been detected is still very large [7], not to mention sites created by individuals. Information are expressed freely in many ways on the internet which has a very large platform, with the possibility of expanding the reach of pornography that can shape children's behaviour, including sexual violence [8]. Harassment or sexual violence in children occurs in many forms, can be either direct or indirect physical contact such as through speech. One of the causes of sexual violence in children is the presence of pornographic media [9]. Studies have shown that violence in media encourages children to develop a lot of violent behavior and aggression. Violent scenes, pornography, crime, violent games and other inappropriate content displayed on internet sites encourages children to engage themselves in sexual violence and non sexual violence. [10]. Based on facts sourced from the Proc. EECSI 2019 - Bandung, Indonesia, 18-20 Sept 2019 117