System Security Firewall

Over the past few decades, firewalls have been a port-based guardian of the Internet. 　　Now vendors are scrambling to roll out so-called "next-generation firewalls" because these "application-aware" firewalls can monitor and control access based on application usage. In addition, many firewalls have added more and more features to try to discover the 0 attacks, including intrusion prevention systems (IPS), web filtering, VPN, data loss protection, malware filtering, and even threat detection sandbox. For a separate IPs, because of its application control, it may be called "Next Generation IPs" ...

On the afternoon of February 4, 2015, under the guidance of the Ministry of Public Security and the Ministry of Information Technology Informatization, the Third Research Institute of the Ministry of Public Security and other relevant departments, the deep convincing science and technology, NSFocus and the net God Information technology were jointly held by the second generation Firewall standard conference in Beijing National Conference Center. The chief engineer of the Network Security Bureau of the Ministry of Public Safety, Shun Chunming of the Third Institute of the Ministry of Public Security, as well as the senior security experts who are deeply convinced, NSFocus and Guo Qiquan, made an important speech at the meeting. The second generation firewall standard should rise to the national standard Guo Qiquan introduced our country network security development ...

Today, open source firewalls are numerous. 　　This article will cover 10 of the most practical open source firewalls that fit your business needs. 1. Iptables Iptables/netfilter is the most popular command line based on firewalls. It is the safe line of defense for Linux servers. Many system administrators use it to fine-tune the server. The function is to filter packets from the network stack in the kernel, including: listing the contents of the packet filtering rule set, and executing fast because it only checks the header of the packet, and the administrator can ...

Firewall products from the 90 's to the present, although through the system architecture and software form of many innovations, but in technology development and users, bandwidth growing today, but increasingly difficult to meet the challenges of many aspects. Especially in the current hottest data center and cloud computing environment, the Ethernet standard starts from million trillion to 40g/100g forward, our country all kinds of data center and engine room total already reached 50余万个. Low latency, high reliability and intelligent security management have put forward new requirements for the performance and function of gateway security products. This year, Rui Jie network, Pike, deeply convinced ...

Cisco believes that the advent of cloud firewalls means the emergence of the fifth generation of firewalls (the first four generations are: software firewalls, hardware firewalls, ASIC firewalls, UTM). Cloud Firewall 4 features include: Anti-Zombie network/Trojan, to prevent the network internal host infection, cloud detection-Global IPS linkage, cloud access-sslvpn, cloud monitoring-the only support NetFlow firewall, the NOC and SOC two integration. Firewall technology refers to the isolation between the local network and the external network of a defense system collectively. Firewall on the Internet is a very effective ...

According to IDC's estimate, from the operating cost control point of view, in the IT industry, the cost of energy consumption has reached its hardware procurement costs of 25%. The data is rising at a compound annual rate of 52%. 　　When enterprises and large and medium-sized organizations face the changing business pressure and the data of exponential growth, it is necessary to consider and pay attention to the characteristics of environmental protection and energy saving in the data center. At the same time, the Enterprise data center areas of various products have been affixed to the "green energy-saving" label, a variety of "green energy-saving" as the main selling point of the new technology is also emerging ...

In the information industry, security is an embarrassing profession. 　　Computing, network, storage and other vendors can proudly enumerate the recent advances in technological performance, and the security industry in the continuous development and investment, faced with more and more troublesome security issues. Zombies into "clouds" if you want to further illustrate the deterioration of the situation, in addition to the ongoing security incidents in the newspapers, we can also try to ask the question: compared with the past, today, to become a hacker, or launch a cyber attack, it is more difficult or easier? The answer is obviously the latter, just like f ...

Due to the application of VoIP, the firewall market will be completely changed. New research shows that institutions underestimate the need for companies to increase VoIP security capabilities based on existing firewalls, and that these requirements are changing the pattern of the firewall market. Due to the application of VoIP, the firewall market will be completely changed. New research shows that institutions underestimate the need for companies to increase VoIP security capabilities based on existing firewalls, and that these requirements are changing the pattern of the firewall market. INSTAT, a market research firm based in Arizona, State Scottsdale, this year ...

The following article is mainly about the security firewall to prevent Windows blue screen attacks in the actual operation process, the Windows family of operating systems in the crash, often displays a blue screen, which is written with some complex symbols and numbers. The blue screen attack actually takes advantage of the kernel flaw of the Windows operating system, or uses a large number of illegal format packets to send to the attacked machine, causing the network layer of the Windows operating system to be damaged, which causes the Bluetooth to panic. At present, the most common attack methods are: L.netbios attack: To ...

Cisco believes that the advent of cloud firewalls means the emergence of the fifth generation of firewalls (the first four generations are: software firewalls, hardware firewalls, ASIC firewalls, UTM). Cloud Firewall 4 features include: Anti-Zombie network/Trojan, to prevent the network internal host infection, cloud detection-Global IPS linkage, cloud access-sslvpn, cloud monitoring-the only support NetFlow firewall, the NOC and SOC two integration. Firewall technology refers to the isolation between the local network and the external network of a defense system collectively. Firewalls on the Internet are a very effective ...