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One, the internal LAN all use the private address on the network, under the normal circumstances, the internal computer in the direct use route external access, will because the computer uses is the Internet reservation address, but is filtered by the router, thus causes cannot access the Internet resources, The solution to this problem is to use the NAT address translation function provided by the routing operating system to convert the private address of I
Copy Code code as follows: function Ce_getmac () { if (Php_os = = ' WINNT ') { $return _array = Array (); $temp _array = Array (); $mac _addr = ""; @exec ("Arp-a", $return _array); foreach ($return _array as $value) { if (Strpos ($value, $_server["Http_client_ip"])!== false Preg_match ("/(:? [ 0-9a-f]{2}[:-]) {5}[0-9a-f]{2}/i ", $value, $temp _array)) { $mac _addr = $temp _array[0]; Break } } Return $mac _addr? Strtoupper ($mac _addr): '; } else if
Firefox and Chrome support WEBRTC can request the stun server to return to the intranet IP, unlike the XMLHttpRequest request, stun request is not seen in the developer tool. Get the IP addresses associated with a account function Getips (callback) {var ip_dups = {}; Compatibility for Firefox and chrome var rtcpeerconnection = window. rtcpeerconnection | | window.mozrtcpeerconnection | | Window.webkitrtcpeerconnection; var mediaconstraints
It is very convenient to develop MIS system on internet/intranet based on ASP technology, first of all, it borrows ADO technology and concept, and accesses database through ODBC, and achieves full flexibility and multi-platform, in addition, because of ASP using VBS and JS scripting language, It also ensures that most developers quickly enter the development process and reduce the learning process. However, because the ASP is based on the Internet/
Often the company's development environment will be arranged in the intranet, and then there will be a common server for everyone to develop, test, so often there will be SSH connection server, or local MySQL client connection server needs, I personally experienced the company often occurs ssh/ MySQL connection to the public server is very slow, because the SSH service and MySQL service by default will be at the time of the DNS reverse parsing process
Tags: view NTS Basic Principles Network HTTP gateway out order principleOpen Terminal, enter the following command# View current routing tableNetstat-rn# Get the default routeRoute get 0.0. 0.0 # Delete Default routesudo route-n Delete default 10.2. 0.1 # Add a public network gateway sudo Route add-net 0.0.0.0 10.2. 0.1 # Add intranet Gateway sudo route add-net 194.0. 0.0 194.2. 100.254 After the command is entered, open the s
"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
How to use "mathematical modeling-graph theory model" for automated intranet penetration testing Privilege escalation in the Active Directory domain is an important part of the struggle between most intruders and the Intranet administrator. Although obtaining the permissions of the domain or enterprise intranet administrator is not the ultimate goal of evaluation
Using dnsmasq to build a small Intranet DNS dnsmasq is a very small dns server that can solve small-scale dns query problems, such as the Intranet of the IDC. The general idea of www.2cto.com is as follows: Configure dnsmasq as the DNS Cache Server and add local Intranet resolution to the/etc/hosts file, when querying an intr
Reference address: www. nat123.comPages _ 8_266.jsp: (1) install and enable nat123 on the Intranet, add ing, and use other application types. The Intranet address port is the Intranet MSSQL address port, which is customized by the Internet address port. (2) After the ing is successful, access the Internet to connect to MSSQL using the mapped Internet address doma
The Enterprise Network Security Administrator pays great attention to the harm to the Internet. Whether it is to deploy a security gateway or other protection products, the ultimate goal is to prevent the enterprise from being compromised by network security. However, administrators should pay attention to Enterprise Intranet security protection while enhancing Internet protection. This article analyzes six internal network security threats through so
Question 1: Cross-origin penetration In an intranet, the domain administrator permission of Domain a (a. AB .abc.com) has been obtained, and the entire domain has been controlled. Net view/domain: B shows that many machines exist in B domain (B. AB .abc.com). machines in the domain can be pinged to machines in the B domain and want to penetrate machines in the B domain across domains, obtain the domain administrator permission of Domain B. Can I ask t
After a lot of chickens have been put on the horse, the black friends may be thinking about how to use the loot in their hands. Some people like to spy on the privacy of others, some may use the Trojan horse keylogger to steal someone's QQ password, some people may want to steal someone's broadband Internet access account charge Q currency. But have you ever thought that these chickens in the intranet into a SOCKS5 server? In this way, we can use thes
Performance test of LAN switch interface in Flight Tower firewallUnited States flight Tower Fortinet Firewall, the default intranet interface type is hardware exchange, all intranet interfaces share a gateway, the intranet interface allows mutual access, here will be two notes A, B access to the 13, 14 ports to be tested. Notebook A's
The first step is to ensure that your intranet machine can smoothly connect to the Internet through the so-called proxy server. Here we will not talk much about it. Let's look at this picture. As for how the proxy server with a public IP address (or the proxy gateway) connects to the Internet (also in the question mark), this is an ISP problem for individual users, I won't talk about it here. This server has dual-nic, one set IP address is 61.134.36.5
Use Cases: Network problems when using both wired and wireless Internet access in a notebook: 1. My environment is Intranet/Internet isolation. 2. Wired connection is an Intranet (LAN ). 3. Connect a wireless router that can access the Internet (generally Internet. 802.1.1 Problems: If my local network connection and wireless network connection are enabled at the same time, I cannot access the Interne
The following describes how to perform the operation. Take my computer as an example to give a demonstration. I also have two NICs, one is the Office intranet and the other is the Internet.Set the IP address to 192.168.1.111 and the gateway to 192.168.1.1.Nic connected to the Internet, IP: 192.168.0.111, and Gateway: 192.168.0.1In the command line, run the route print command to view the current default route table:The bottom row: Default Gateway: 1
Experiment name: Huawei Pat address translation, and intranet Web server publishingExperimental topology diagram:3. Purpose of the experiment:1. Transform the intranet through Pat to Sisu network2. Using static NAT for Port mapping, publishing a Web server3. Configure the Switch Telnet4. Address PlanningClient 1--web:192.168.1.2/24Gateway 192.168.1.254Client 2:192.168.1.1/24Gateway 192.168..1.254LSW1 Manage
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