منابع مشابه
Firewall Monitoring
Securing resources against unauthorized access and/or use is a major concern of every organization that uses computer networks. To protect internal networks from external attacks, firewalls are utilized since they restrict network access while letting legitimate users have unencumbered access. Firewalls are also used to log security auditing information about connections and operations. We desc...
متن کاملFirewall Management With FireWall Synthesizer
Firewalls are notoriously hard to configure and maintain. Policies are written in lowlevel, system-specific languages where rules are inspected and enforced along non-trivial control flow paths. Moreover, firewalls are tightly related to Network Address Translation (NAT) since filters need to be specified taking into account the possible translations of packet addresses, further complicating th...
متن کاملFirewall Queries
Firewalls are crucial elements in network security, and have been widely deployed in most businesses and institutions for securing private networks. The function of a firewall is to examine each incoming and outgoing packet and decide whether to accept or to discard the packet based on a sequence of rules. Because a firewall may have a large number of rules and the rules often conflict, underst...
متن کاملFirewall Patterns
In this paper we provide three firewall patterns. The firewall pattern describes how access to internal networks can be restricted in general. It shows the basic problems and indicates a general solution. The other two patterns are more specific variants which are usually used in order to implement access control at the network border. This paper is also an experiment of understanding what it m...
متن کاملInternet Firewall
This paper commences by explaining some firewall definitions in order to understand basic terms for firewall techniques. Three firewall techniques, from packet filtering through to proxy services and stateful packet inspection are then discussed. Following techniques, various firewall architectures, ranging from dual-home host architecture, screened host architecture and screened subnet archite...
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ژورنال
عنوان ژورنال: CLEI Electronic Journal
سال: 1998
ISSN: 0717-5000
DOI: 10.19153/cleiej.1.1.4