how to find what devices on network

Detailed explanation of network interconnection devices used for LAN construction computer networks are often made up of many different types of network interconnection connections. If several computer networks are physically connected together and cannot communicate with each other, then this "interconnection" is meaningless. Therefore, when talking about "inter

, and other functions to increase the signal transmission distance; Data link layer, bridge, switch Hub: Distribute the data received on a port to all ports; Extension Method: STACK: shared bandwidth. Data is transmitted on only one port at a time, which reduces the average bandwidth. The backplane is logically a separate device; Cascade: uplink port, logically multiple devices; Transceiver: Used to connect a computer to different transmission media

Recently, Abo's company has expanded its scale and added many employee clients. The leaders also demanded that the company's internal network telephone project be launched as soon as possible, and all the tasks were put on ABO's shoulders. With a sigh of relief from the cisco devices purchased a few years ago, these devices cannot meet the company's scale and nee

name) Server:127.0.1.1 (Server 127.0.1. 1 is the primary DNS server to resolve, there is no www.baidu.com this domain name, some words on the parse out, do not go to other DNS server to find) Address:127.0.1.1#53 (address:127.0.1.1#53, other DNS servers from 1 to 53 to find) Non-authoritative answer:www.baidu.com canonical name=www.a.shifen.com. (another 2 name and IP address of the Baidu server) Name:www.

650) this.width=650; "Src=" http://7xo6kd.com1.z0.glb.clouddn.com/ Upload-ueditor-image-20161220-1482241871705028023.jpg "/>In the previous section we enabled open VSwitch, this section will review the current network status and describe the various network devices involved in open VSwitchInitial network statusCheck th

we use for our virtual machine, what is the qvb48e06cd2-60? We use lshw-class network to print out all network devices (Part 1 ): *-network:5 description: Ethernet interface physical id: 7 logical name: qvb48e06cd2-60 serial: be:d5:53:6f:f3:12

What if devices are scattered? Try link layer Discovery Protocol In a large network, it is very important to know what is connected to the network. The larger the network, the more logical and physical it is-the harder it is to c

The third part of the popular explanation 　　The above terminology is a little bit more, the beginner may still have a little not understand the feeling of thorough. Below I will use these three kinds of network devices to make a popular analogy to help understand: LAN is like a building, everyone (like the host) has its own room (the room is like a network card,

Mobile Internet is undoubtedly the new favorite of the industry, do not see this potential before, or only focus on their own field, now you do not talk about this you are not enough tide. This afternoon, the UCD in BEIJING, including organizers, only a few people do the relevant work, but as long as the mobile device or the Internet has a relationship with the business, are interested in this area or eyeing. I agree with a friend of Baidu who is worried about the future of mobile internet i

created the virtual machine again, I suddenly found that the Linux option was not only CentOS, but alsoCentOS x64I am a guy to stay, incredibly ignore this ~~~~~ decisively continue.Problem solved! 5. Summary1, have problems to think calmly, and constantly repeat the wrong attempt can only make oneself more crazy2, search keywords is very important, daily life in the same meaning of keywords, search engine revealed the results are very different"for example. Baidu

How enterprises consider their network protection devices In addition to powerful routers (such as Cisco, Huawei, and 3Com), most of the companies that are willing to invest in it have security devices such as UTM, IPS, and Web security gateway. Of course, we must not forget the common firewall that has been working hard for a long time (non-integrated securi

Article Title: How to install and configure network devices on 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. Since the birth of linux, it has been doomed to an unprecedented powerful network function. Therefore, it is

With the advent of the Internet of everything/internet of things, a growing number of new electronic products for consumers to choose from, wearable smart devices are among them, and they are gaining popularity at an alarming rate. What is wearable smart device? As the name implies, it is the equipment that people can wear in their daily life. In addition to the famous Google Glass, more common are fitness

in the previous section we enabled open VSwitch, this section will review the current network status and describe the various network devices involved in open VSwitchInitial Network StatusCheck the current network status.Control NodeThe ifconfig display has three Bridges Br-

users to join the Internet connection of this computer ", in "Home Network Connection", select "wireless network connection 2"-"OK ". C: \ Windows \ system32> netsh wlan start hostednetwork has started the bearer network. In this case, other laptops or smart phones can find Wifi, with the SSID test-wlan and the key te

Security Warning: more than 300 juniper network devices in China are affected by Backdoors On July 15, the Juniper official website published a Security Bulletin stating that unauthorized code was found in their Netscrren firewall's screnos software, which involved two security issues, one is in the VPN authentication code implementation is placed in the backdoor, allow attackers to passively decrypt the VP

the computer does not sound, the system service may stop causing "no audio device." Resolved as follows: 1. Click on the bottom right corner of the desktop to start, find "Run" 2. Enter services.msc and return to open the service 3. Find Windows Audio Service, right click, view properties 4. Set the startup type to "Automatic" and click the "Start" button below the service status. Postscript "No audi

In network programming, you must understand the basic knowledge and master these knowledge to make your network programming more perfect and reasonable. Common network devices include routers, bridges, gateways, and modems. The key lies in the fact that a router is the most common device. The most common

"Netizen asks a question": have been not clear exactly what difference does photoelectric converter, fiber transceiver, light cat, light module have? "Answer": Optical module is inserted in the router or switch, can not be used independently, belong to other devices part. and netizens mentioned (photoelectric converter, optical transceiver, light cat, optical module) A few things are basically one thing,

Excerpted from the original article: Decompress the downloaded package: Tar xzf WiFi_Hostapd_AP-0.9.4.10_10.03.12.tar.gz Install some dependencies before use: Sudo apt-Get install wireless-tools bridge-utils hostapd dnsmasq libqtgui4 Edit one Configuration: Sudo gedit/etc/init. d/hostapd Find row 19th and change it as follows: Daemon_conf =/etc/hostapd. conf Save and exit. You can run the GUI program as follows: Go to the decompressed directory and r