July 30, 2018

210-065 Lab material the effect to prevent illegal access external

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Hierarchical integrated defense: cisco SAFE that successful security solution should adopt integrated protection on the network infrastructure, and not only consider 210-065 Cisco A++ some special safety equipment.As a result, cisco has integrated security capabilities into its various network products 210-065 Cisco A++ to ensure that the entire network is fully integrated and three-dimensional.Guangdong development bank has implemented such a three-dimensional integrated security defense.Take the guangdong development bank’s outreach network system, 200-310 exam for example, which USES three layers of integrated security protection, including routers, firewalls and switches.1, the first layer security protection provided 200-310 exam by the router to achieve router in Internet/extranet wan connection of public information network, such as DNS server with guangdong development bank, the WWW server and E-mail servers located in external PIX firewall, with these 210-065 Cisco A++ servers as 210-065 Cisco A++ part 210-065 Cisco A++ of the opening to the outside world, the ministry of internal and external users to provide the corresponding services, its itself also become 210-065 Lab material a part 210-065 Lab material of the public information network.These servers in order to provide effective security, prevent the outside of the user to the illegal operation of the server, the server, 210-065 Lab material delete, modify, or the content, should be carried out to external access can strictly control.With the firewall function of 200-310 exam Cisco router, the operation of external users on the servers can be 200-310 exam restricted to prevent the servers from being damaged from the outside.2. The second layer of security protection is protected by PIX firewall, which completely separates the internal network of enterprises from 210-065 Cisco A++ the external network. PIX is the only outlet for the internal network subsystems.By using 210-065 Lab material PIX 200-310 exam firewall to isolate the internal and external 200-310 exam network, 210-065 Lab material the security of the internal network is further guaranteed.PIX provides a complete record of all access, including 210-065 Cisco A++ illegal intrusion attempts.PIX realized from the network layer to application layer security protection, 210-065 Cisco A++ can be based on packet source address, 200-310 exam destination address, TCP port Numbers and packet length on the communication 210-065 Lab material control, as a move method 210-065 Lab material to access is prohibited.3, 210-065 Lab material the third layer security protection provided by the LAN switches Catalyst 6500 core switches deployed IDS and firewall module, monitoring the safety of the complex intranets effectively, is the third barrier against external attacks to prevent, is a good method to prevent internal attacks.Another Catalyst series switches have MAC address filtering function, therefore can be defined according to the need to switch each port, only allow specific MAC address of the workstation through the specific port access, port to communicate with the connection PIX.Due to the uniqueness of the MAC address and not configured, this kind of control, in fact, from hardware to control a specific machine, compared with the IP address filtering, 210-065 Cisco A++ this protection has higher security.Through the above three layers of security protection, guangdong development bank network system to realize the reliable from link layer to application layer security control, have 210-065 Lab material the effect to prevent illegal access external, has the very high security.Reading this wasn’t the first time I’ve paused to consider whether my heart’s and my people’s infatuation with autumn is not a worldly indulgence. The promise of the Kingdom is fullness of life, not pretty death. Halloween 210-065 Lab material just means “the night before the Saints” and all the gruesomeness on display represents the demons coming out one last night before the Saints arrive and drive them all away. A Christian may secretly treasure the festival for 200-310 exam that reason, but how can she join in when her place is not with the demons and decay, but with the Saints 210-065 Cisco A++ and salvation? Whence this covert delight in the season’s 210-065 Cisco A++ celebration of fear and death?

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