find someones ip address

|+----+-----------+----------------+ 3. Comparison method If you need to find the users in a network segment (for example: 172.16.11.1 ~ 172.16.11.100), you can use the PHP Ip2long method, the IP address to the integer type, and then compare. Inquire: Mysql> Select Ip,name,inet_ntoa (

three subnets, one of which has 100 hosts, and two hosts for the rest of the seven subnets. We know that a class C address has 254 available addresses, so how do you choose a subnet mask? From the table above, we find that this problem cannot be solved when we use a subnet mask in all subnets. At this point vlsm comes in handy, we can use the 255.255.255.128 mask on the subnet of 100 hosts, which can use 1

We need to edit the file. The code is as follows Copy Code /etc/init.d/networking restart Locate the Ifcfg-eth0 file and duplicate a copy of the renamed Ifcgf-eth0:0″ The code is as follows Copy Code device=eth0:0Onboot=yesBootproto=staticipaddr=198.40.52.132 #IPnetmask=255.255.255.224 #子掩码gateway=198.40.52.129 #网关 The main card is the setting name, to be consistent with the filename, and modify your new

DHCP service of the wireless router. However, if the "address pool" parameter of the DHCP service in your wireless router is set improperly and contains the IP address segments used by the above five computers, an IP address conflict may occur. The cause of

. In Chinese, it is "Myself ". In Windows, this address has a few Name: "localhost ". Addressing such an address cannot send it to network interfaces. Unless an error occurs, it should never be in the transmission media. The packet whose destination address is 127.0.0.1 appears. Iv. 224.0.0.1 Pay attention to the differences between multicast addresses and broadc

the serial number and press enter to select:ClsIf defined net % num % (set NET =! Net % num %! Set MAC =! MAC % num %: =! Set MAC =! MAC :~ 0, 17 !) The number entered by else (echo. echo is incorrect. Please reselect it! Goto: net) : LibSet MASK = 255.255.255.0Set GATE = 192.168.0.1Cls echo. echo current! NET! MAC! MAC!For/f "tokens = 2 delims = []" % a in ('findstr/I "! MAC! "% 0') do set IP = %If defined

0x01 verifies that CDN Method 1 is present: Very simple, using a variety of multi-ping services, to see if the corresponding IP address is unique, if not the only most of the use of CDN, the multi-ping site is: http://ping.chinaz.com/ http://ping.aizhan.com/ http://ce.cloud.360.cn/ Method 2: Using Nslookup to detect, the same principle, if the return domain name resolution for multiple

The IP address is composed of four digits. Here, let's take a look at three common IP addresses.Class a ip segments 0.0.0.0 to 127.255.255.255Class B IP segments 128.0.0.0 to 191.255.255.255C-type IP segments 192.0.0.0 to 223.255.

is normal. Since there is no problem with the network parameter configuration of the computer, is it true that there is a problem with the computer system? The old computer of the finance department installed Windows 98. The author carefully checked some program files automatically loaded during the system startup, as well as some currently running applications, no suspicious information is found, and the author also used the system detection program to conduct a comprehensive inspection of the

whether the server encountered a fault, but the result of the attempt told me, the server is working normally, because my workstation can smoothly access the content on the server. Later, I came to the server and wanted to find some clues from the server log file. However, when I opened the server computer display screen, I saw an error message indicating IP address