bluecoat firewall

Traditional firewalls only prevent the perimeter Traditional edge firewalls provide only protection for the perimeter of the corporate network. These edge firewalls filter and censor traffic from outside the Internet into the intranet of the enterprise. However, they do not ensure secure access within the enterprise LAN. It's like adding a lock to the door of an office building, but every room in the office building is open, and once someone passes the door of the office building, they can acces

enterprise users. The Stuxnet, the so-called "super Factory virus", which caused part of the shutdown of Iran's nuclear facilities in 2010, was successfully invaded by exploiting the loopholes in the Siemens SIMATICWINCC Monitoring and Data Acquisition (SCADA) system of the enterprise-class application software at the Iranian nuclear equipment plant. But in the domestic, in recent years exploits the Web security loophole to become the mainstream which the hacker attacks, many websites all suffe

This article will introduce some practical knowledge, that is how to configure the security policy in the firewall. However, it should be noted that the specific configuration of the firewall is not uniform, do not say that different brands, is the same brand different models are not exactly the same, so this can only be some general firewall configuration method

. In the first line of network security, firewall management is such a behavior-when you change rules and configuration files, a small error may cause you a huge problem. The following are some common mistakes: 1. Create a meaningless firewall group. A firewall administrator has more than half of the Rule permissions when adding the device to the network. Later,

First, we need to understand some basic principles of firewall implementation. Firewall is currently the main packet filter, and stateful detection package filtering, Application Layer Agent firewall. But their basic implementations are similar. ││---Router-----network card │ Firewall │ network card │----------Interna

Linux iptables firewall, linuxiptables Content summary Firewall Firewall Definition Firewall category Netfilter/iptables Netfilter design architecture Brief description of iptables Iptables command details Command syntax Table Parameters Command Parameters Match P

Following the previous article http://www.cnblogs.com/EasonJim/p/6851241.html explained the UFW firewall is no interface, below will introduce the GUI configuration function in GUFW.Ubuntu simplifies the iptables firewall and can install UFW, which is the uncomplicated Firewall (simple firewall). UFW is the front-end o

Today, we are in the information age, but also can be said to be the virus and hackers in the era, it is indeed a bit pessimistic but today's network indeed, from the Internet to the intranet, from the PC to the Internet mobile phone platform, no place is safe. Every time the network virus attack, will let the home user, the Enterprise user, 800 hotline even is the operator Tourian. But after another viral crisis, people have begun to think about the safety of the network. Now any enterprise to

Author: Lin shanmao Status detection firewall is currently the most widely used firewall to protect against hacker attacks. However, as the number of Web attacks targeted at the application layer increases, the effectiveness of the status detection firewall is getting lower and lower in attack protection. Status detection firewalls are not designed speci

Press "Win+w" to enter the WIN8 system's Setup Search interface (the touchscreen user can move from the right side of the screen to the middle and select search from the Super button menu), enter the keyword "firewall", the left immediately appear Windows Firewall, allow application through Windows Firewall, Check for related search results such as

The default firewall rules for 1 rhel5 boot are in Linux. you can use the iptables command to build various types of firewalls. When the RHEL5 operating system is installed by default, the iptables firewall has been installed, and some rules are automatically added after the system is started. these rules are actually determined by the iptables file in the/etc/sysconfig directory. Accessible 1 RHEL 5 defaul

1. Scenario: Hardware? Or the software? Now the function of the firewall is more and more fancy, so many functions must require the system to have an efficient processing ability. Firewall from implementation can be divided into software firewalls and hardware firewalls. The software firewall is represented by the firewall