tiny hardware firewall

All along, hardware professional firewall products are in the eyes of the user to create a mysterious and unattainable impression, firewall cheap price and product function is powerful like fish and Bear's paw, both often can not have both, its at a price of hundreds of thousands of yuan is not generally commercial users can afford. The number of hidden dangers a

Part I see: How to configure a hardware firewall 10. Address Translation (NAT) The NAT configuration of a firewall is basically the same as the NAT configuration of a router, and it must first define the internal IP address group for NAT conversion, and then define the internal network segment. The command that defines the internal address group for NAT conver

If DDoS attackers increase attack traffic and consume the total outbound bandwidth of the data center, any firewall is equivalent to a firewall. No matter how powerful the firewall is, the outgoing bandwidth has been exhausted, and the entire IDC seems to be in a disconnected state, just like a door already crowded with people, no matter how many guards you have

A remote backup was scheduled this morning, but I found that the entire backup process was not completed successfully.The exception is thrown repeatedly during the backup process:Java.net.SocketException:Connection ResetStrangely, in the previous one months, each backup can be completed successfully, but today is always throwing such a mistake.I started thinking it was a problem with the program, but I checked for more than 10 minutes and didn't find the cause.Later I began to wonder if the serv

The port itself is turned on by default, but does not mean that the link to the port must be up. Only link devices are connected and connected devices such as PC are working properly ...Three-layer switch port, still have 24, or fa0/1-24, its three-tier routing function is not implemented through the FastEthernet port, but through its VLAN interface to achieve,therefore, on the two two-layer switch of unicom, it is necessary to configure VLAN to realize interoperability. Accordingly, the export