optim intranet

Intranet is a major component of network applications, and its security has been paid more and more attention. According to incomplete statistics, 15% of the investment in building an intranet outside China is used to enhance the network security of the Intranet. Security vendors maintain a strong growth momentum in China's IT market. The proportion of investment

: Class C network address 192.168.0.1 and the corresponding default shielding value 255.255.255.0.Determine the destination address of the packetWe say that the "and" operation of shielding values and IP addresses is an internal process that determines whether a packet is passed to a host on a local or remote network. The corresponding procedure is this: when the TCP/IP initialization, the host's IP address and subnet mask value phase "and". Before the packet is sent, the destination address and

Find the private channel for the VPN Intranet to log on to the Internet. The author is located in a branch. There are two network lines, one is frame relay to the headquarters of the company, and the other is the normal ADSL bandwidth, only 512 K. The entire branch uses the K broadband Internet shared by each user, the available bandwidth becomes very small, and the network application experience is not smooth. I have heard that the Internet egress ba

Use the intruded vro to enter the Intranet Last year, we started to use vrouters to penetrate the destination intranet. Before seeing wooyun, there was an article about translation of foreigners about routertraffic hijacking. The use conditions were harsh and the results were not very effective. So I decided to write an example of my own test. 0x01 control Router Now we only work on cisco routers, but the

To protect Intranet security, I believe that firewall programs are installed on the Intranet of the vast majority of organizations. As a result, the idea of many network administrators attempting to remotely control the Intranet workstation on the internet is forcibly "contained. This is not the case. Because my local network is installed with a firewall and only

From the first day of commercial use, LAN technology has been adopting an open and shared resource-based model. While pursuing high convenience, security will inevitably be affected, which is also the most important cause for the problem of Intranet security from the beginning. The fineness and depth of management often determine the final level of an Intranet security system. The solutions with higher leve

As an omnidirectional Security Network Technology in Intranet security, it uses a flexible key management solution to implement secure network communication between any two computer terminals in an open network. 1. Overview of omnidirectional Security Network Technology Omni Directional Secure Network (ODSN) is a patented technology applied by Ming Dynasty Wanda. Omnidirectional security network technology uses flexible key management solutions to eff

The idea of Intranet penetration is derived from the idea of Trojan horse-bastion hosts are the easiest way to break through from the inside. A large website, a large company, a large target, and an external target, administrators will always do everything they can to strengthen prevention and fix vulnerabilities. It is almost impossible to use conventional methods. The breakthrough of Intranet penetration

I once saw an article on the Internet that introduced a method for direct access to the Intranet. In fact, we only need to use the port ing tool to easily penetrate the Intranet. Port er is a tool like this. It is even more worth mentioning that it breaks away from the command line mode and provides a graphic interface operating environment. I. Basic Ideas To help you better understand the principle, let me

Article 1 1. Set a gateway in the attributes of one network card (for example, you can set one of the two Intranet segments and one Intranet for the convenience of setting up the Internet). Leave the other gateway blank first. 2. Run cmd. Run the "route-p add Intranet CIDR Block mask subnet mask Intranet Gateway (lef

One, dynamic public network IP environment1, Environment Description:Routers are assigned a dynamic public IP and have routing management privileges, and Linux hosts are deployed in the routed intranet. How to implement external network SSH access to intranet Linux host?2. Solution:Use nat123 dynamic Domain name resolution to solve dynamic public network IP problems.3, the implementation process:Method One:

Figure text: udb311 topic: MSSQL Intranet penetration case analysis published: Black and White Front Line Description: it has always been mysterious to the Intranet penetration technology, and a webshell is an intranet server. I would like to take this opportunity to practice the Intranet intrusion penetration technolo

The current work environment cannot be connected to the Internet, but there are some wireless hotspots around, use a laptop to connect to the wireless network, you can access the Internet, but if you connect to the Intranet, you can not connect to the Internet, this is very troublesome, so I try to find some ways to solve this problem, so that the Intranet and the Internet can be connected at the same time

have been paying attention to network security for a long time generally believe that the changing trend of Enterprise Intranet security applications is actually a realistic portrayal of the rapid development of networks, today, enterprise users are very clear that they want to protect "information" rather than "Information Systems ". "Information" is everywhere in the network and constantly flowing in the network. Today, the transformation of custom

"Three-Point Technology and seven-point management" is a famous saying in the Intranet security field. Large enterprises and organizations, small to each of us, are dealing with management all the time. outstanding management is the starting point of enterprise competition and a necessary choice for enterprise success, this has become the consensus of the industry. With the further development of office information technology, enterprises have establi

Firewalls and switches are still commonly used. What will happen to the cooperation between the two? I would like to share it with you here and hope it will be useful to you. With the maturity and rapid development of network and Internet technologies, more and more enterprises and institutions have begun to set up networks to automate office work and share Internet information. However, security issues have also emerged. iMaxNetworks (memory network company) proposed a solution based on the cha

Public network IP and intranet IPFirst, let's take a look at the IP address Division:Class A address:0.0.0.0------127.255.255.255Where 127.255.255.255 is the broadcast address and cannot be assignedClass B Address:128.0.0.0------191.255.255.255Class C Address:192.0.0.0------223.255.255.255Class D Address:224.0.0.0-----239.255.255.255Class E Address:240.0.0.0------255.255.255If you want to see how much IP you have on your machine, you can view it like

Intranet SecurityIn the face of threats, firewall, anti-virus software, IPS, and other products are often ineffective. These products have been widely deployed in the enterprise network, but these products are mainly for Internet security protection.CAIt is a third-party trust institution that uses the PKI public key infrastructure technology to provide network identity authentication services, is responsible for issuing and managing digital certifica

What is port ing: Port ing (NAT or napt) refers not to a port in the physical sense, but to a port in the TCP/IP protocol. It is a logical port. Port ing: if a computer on the Intranet needs to access the Internet, port ing is required. Port ing is divided into dynamic and static. dynamic port ing: if a computer in the Intranet needs to access xinlang, it will send packets to the NAT gateway, including the

Today, we will talk about how to use port ing without using the gateway to open the Intranet. 　　I. Prerequisites A public IP address is required. Assume that we have a public IP Address: 210.210.21.21. 　　Ii. Tools used 1.lcx.exe 2. vdic 　　Iii. Methods Method 1: Use lcx.exe for ing. (1)we will upload lcx.exe to the public IP address, and execute lcx-listen Port 1 Port 2 in the DOS environment on the public IP Address See lcx-listen 3030 for details. T