top enterprise firewalls

between the enterprise public network and branches, business partners, and mobile users; 4. Anti-spoofing: spoofing is a common means of obtaining network access from the outside. It makes data packets come from inside the network. The firewall can monitor such data packets and discard them; 5. C/S mode and cross-platform support: enables the management module running on one platform to control the monitoring module running on another platform. Let's

CC attacks are extremely low-cost DDOS attacks. As long as there are hundreds of IP addresses and each IP address gets several processes, there can be hundreds of thousands of concurrent requests, it is easy to exhaust server resources, resulting in website downtime; defense against CC attacks, the hardware firewall is not very effective, because the IP address volume of CC attacks is too small, it is difficult to trigger the defense mechanism, however, software

In addition to the security protection provided by a gateway based antivirus program, the SonicWALL enforces client antivirus and anti-spyware options to further enhance security. Present situation At present, a new generation of firewalls has been released, designed to provide the Web 2.0 environment with strong security performance, robust intrusion prevention capabilities and fine-grained application control capabilities. However, are all the nex

firewall can fully utilize its own speed and processing capabilities, regardless of the number of sessions. In addition, the ASIC hardware firewall completely removes the impact of the PC structure. Next we will compare the firewall in the PC structure with the firewall in the ASIC structure. If a firewall in a PC structure is able to complete a task (such as address translation under a single policy or Session), it can also achieve or be close to the processing capability of the ASIC firewall,

functions into every corner of the network, even remote access users, not only to the external network to the internal network of communication filtering, but also according to the needs of the internal network to filter the communication between users. The idea of its protection is that other than their own access to any user is "not credible", are required to filter. Similar to previous personal firewall software products, but not exactly the same. First, they are very different, and the secu

Topics Cisco ASA Virtualization Overview Virtual Firewall Deployment guidelines:the information you need before you deploy Virtual firewalls Configuration Tasks Overview Configuring Security Contexts Verifying Security contexts Managing Secuirty Contexts Configuring Resource Management Verify Resource Management Troubleshooting Security Contexts Perhaps you is an Internet service provider and would like to

configuration and usage. 2. Access Control at the application layer This function is the best choice for various Firewall vendors. Although many firewalls based on free operating systems can have status monitoring modules (because kernel modules such as Linux and FreeBSD support status monitoring ), however, the control of the application layer cannot achieve "come-as-you-go" and requires real programming. In terms of application layer control,

Today, knowledgeable hackers can use the ports opened by the network firewall to cleverly bypass the monitoring of the network firewall and directly target the application. They have come up with complex attack methods that can bypass traditional network firewalls. According to expert statistics, currently, 70% of attacks occur at the application layer rather than the network layer. For such attacks, the protection effect of traditional network

As for server security, one of the most common problems novice encounters is: What kind of firewall should we choose? In the face of such a wide range of server firewalls, when the choice is to consider the visibility of the manufacturer or the firewall itself performance? is the choice of domestic firewall or foreign firewall? Should you use a fee-based enterprise firewall or try a free firewall? These pro

Article Title: using NMAP commands and firewalls in linux. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. A firewall is deployed in the Linux operating system, which prevents other hosts from scanning the local machine. If an enterprise network has an independent firewa

often use these NMAP commands to improve the security of network deployment. For example, I like to use this command to play games with security software such as firewalls. That is to say, I pretend to be an attacker to test whether these security systems can block my attacks or leave my traces in the security system logs. From another perspective, you may be able to discover security vulnerabilities in your ente