The firewall is developed in recent years to protect a computer network security technology， is currently the most widely used of a network security The firewall is one or a group of access control strategy for the implementation of the system， which can be software， hardware or a combination of hardware and software， its purpose is to provide security protection for the Firewalls often in the internal network and external networks， can monitor， control and changes in internal and external networks of the mobile communication network; control external access to internal computer protected environment， and to determine the time to visit， competence， the types of service And quality， check the spread of internal information， avoid the outflow of confidential information， to resist external invasion and prevent the leakage of internal information This paper presents a firewall configuration in the importance of network security， explain the firewall rule set is a firewall product safety is an important Key words: network security firewall configuration
Abstract along with computer technology's full scale development， our life as well as the work is day by day In order to cause the management to be more scientific， to be more convenient， is more At the same time， can also help the telecommunication cost concerned personnel to raise the working efficiency and the grade of Reduces the nonessential loss for the telecommunication Thus effective enhances the telecommunication bureau economy the The terminal cost system's development then fast develops， it can realize to the different model program controlled switch the primitive telephone bill information which fixed time or hands down from generation to generation immediately to the cost center carries on prompt accurate classified， the inquiry， the browsing， the revision， the deletion， statistical， the telephone bill information printing and so Can inquire the customer telephone conversation data promptly， avoids causing the phone bill to dispute， enhances the customer the degree of this article by through to the telecommunication bureau cost center routine work's analysis， realized fully based on the management science angle the computer technology development has managed the influence which for the telecommunication bureau brings， in this paper had demonstrated comprehensively used the VB program control to realize the automated cost system's design and to realize in the cost system's immediate cost pattern plate key words: VB cost system
In recent years the firewall is one kind of protection computer network security technical measure which develops， is also uses the most widespread one kind of network security to protect the technology at The firewall is or a group implements the access control strategy the system， it may be the software， the hardware or software and hardware's union， its goal is provides to the network safekeeping of The firewall usually is located at between the internal network and the exterior network， may monitor， the control and the change the network service which flows between the interior and the exterior network; Controls the exterior computer to be possible to visit the interior the environment which protects， and determined the visit the time， the jurisdiction， the service type and the quality and so on， the inspection interior spreads the information， avoids the privacy information flowing out， achieves resists exterior invades and prevents the goal which the insider information divulges a This article proposed firewall's disposition in network security's importance， has explained the firewall ruleset is the firewall product security important
