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Deep understanding of the OpenStack Network Architecture (3)-----Routing

8a069c7c-ea05-4375-93e2-b9fc9e4b3ca1 Bridge "Br-eth2" Port "Br-eth2" Interface "Br-eth2" Type:internal Port "Eth2" Interface "Eth2" Port "Phy-br-eth2" Interface "Phy-br-eth2" Bridge Br-ex Port

JSP file operations

the object has been read to the end While (C! =-1 ){ Out. Print (char) C); // output the read data C = Fr. Read (); // continue reading data from the file If (C = 13) {// determines whether the row is a broken line character Out. Print (" Fr. Skip (1); // skip one character // C = Fr. Read (); // read a character } } Fr. Close (); %> Read data in one row String Path = request. getrealpath (""); // obtain the path of the current directory Filereader Fr = new filereader (path + "\ file \

JS get IP, mac and host name of several methods

Method one (only for IE and the client's IE allows Acitivex to run, through the platform: xp,server03,2000):Gets the client IP. HTML> HEAD> title>getlocaliptitle> HEAD> BODY> Get IP: ScriptLanguage="JavaScript"> Function getlocalipaddr () {varosetting=null;var ip=null;try{ osetting=newactivexobject ("Rcbdyctl. Setting "), ip=osetting.getipaddress; if (ip.length==0) {return "Not connected to the Internet"; } osetting=null;}catch (e) { Returnip;}returnip;}document.write (GE

Zabbix Mail Alarm (v)

-actionConfiguration--ActionDefault recipient:Fault {TRIGGER. STATUS}, server: {HOSTNAME1} occurred: {Trigger.name} failed!Confidence Information:Alarm host: {HOSTNAME1}BR>Alarm time: {EVENT. DATE} {EVENT. TIME}BR>Alarm level: {TRIGGER. SEVERITY}BR>warning message: {trigger.name}BR>Alarm item: {TRIGGER. KEY1}

[Switch] virtual network devices in UOS

connected to the open vswitch. Let's verify it: # ovs-vsctl show1910d375-2692-4214-acdf-d364382c25a4 Bridge br-int Port br-int Interface br-int type: internal Port patch-tun Interface patch-tun type: patch options: {peer=patch-int} Port "qvo48e06cd2-60" tag: 1

Use pure javascript to implement the classic clearance game _ javascript skills

. _ mineFieldEle; // set whether the thunder flag. if (str = 'seton') {var thisMine = allMine [index]; thisMine. on = thisMine. on = 0 Math. ceil (T + 1)/x) = br-1 mineField. mineMap [T] = 0) {continue} if (R_T> = 0 Math. ceil (R_T + 1)/x) = br-1 mineField. mineMap [R_T] = 0) {continue} if (L> = 0 Math. ceil (L + 1)/x) = br mineField. mineMap [L] = 0) {

Use pure javascript to implement the classic clearance game _ javascript skills

. _ mineFieldEle; // Set whether the Thunder Flag. if (str = 'seton') {var thisMine = allMine [index]; thisMine. on = thisMine. on = 0 Math. ceil (T + 1)/x) = BR-1 mineField. mineMap [T] = 0) {continue} if (R_T> = 0 Math. ceil (R_T + 1)/x) = BR-1 mineField. mineMap [R_T] = 0) {continue} if (L> = 0 Math. ceil (L + 1)/x) = br mineField. mineMap [L] = 0) {

Neutron Command Test 4

[Email protected]:~$ route-nKernel IP Routing TableDestination Gateway genmask Flags Metric Ref use Iface0.0.0.0 192.168.98.1 0.0.0.0 UG 0 0 0 Br-ex169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 Br-ex192.168.98.0 0.0.0.0 255.255.255.0 U 0 0 0 Br-ex192.168.122.0 0.0.0.0 255.255.255.0 U 0 0 0 virbr0[Email protected]:~$ ifconfigBr-ex Link encap:ethernet HWaddr 00:0c:29:f6:f4

Deep understanding of the OpenStack Network Architecture (3)-----Routing

enter the namespace inside to see:# IP netns exec qrouter-fce64ebe-47f0-4846-b3af-9cf764f1ff11 IP addr1:lo: MTU 65536 qdisc noqueue State UNKNOWN L Ink/loopback 00:00:00:00:00:00 BRD 00:00:00:00:00:00 inet 127.0.0.1/8 Scope host lo INET6:: 1/128 Scope Host Valid_lft Forever preferred_lft forever20:qr-0b7b0b40-f9: MTU qdisc noqueue State UNKNOWN Link/ether FA:16:3E:82:47:A6 BRD ff:ff:ff:ff:ff:ff inet 10.10.10.1/24 BRD 10.10.10.255 scope global QR-0B7B0B40-F9 Inet6 FE80:

Java Review of network communication

In this article, we mainly discuss how to use Java for network communication, including TCP communication, UDP communication, multicasting, and NiO.TCP connectionsTCP is based on the socket, in the TCP connection, we will use ServerSocket and sockets, when the client and the server to establish a connection, the rest of the basic is the I/O control.Let's take a look at a simple TCP communication, which is divided between the client and the server side.The client code is as follows:Simple TCP Cli

html--form and Anchor Point

;Display Name:TD>TD>inputtype= "text"/>TD>TR>TR>TD>TD>TD>That is, the nickname, the number of characters is not less than 2TD>TR>TR>TD>Password:TD>TD>inputtype= "Password" />TD> TR>TR>TD>Confirm Password:TD> TD>inputtype= "Password" />TD> TR>TR>TD>TD> TD>At least 8 digits, must contain letters, numbers, special charactersTD> TR>TR> TD>Gender:TD> TD>Selectsize= "1" >optionvalue= "1">Manoption>optionvalue= "2">Womanoption>Select>TD> TR>TR> TD>Preferences:TD> TD>Selectsize= "1">optionvalue= "1">Lis

Aurora Push Development-thinkphp Integration

1. Download the PHP SDK HTTP://DOCS.JPUSH.IO/SERVER/PHP_SDK/2 to the Aurora push website. Unzip vendor.tar.gz to your project, thinkphp/library/vendor/under 3. Create a PHP code for the Jpushcontroller file under the Home module controller of the app folder: ‘; $client = new Jpushclient (' 64237c873a665c79b1ece96c ', ' 41aeddfab4828ddb64a5a1f1 '); try {$result = $client->push ()->setplatform (M\all)->setaudience (m\all)->setnotification (m\ Notification (' Hi, Jpush ', m\android (' Hi, Android

Use of FMT tags in jsp

@taglib prefix="FMT"URI="http://java.sun.com/jsp/jstl/fmt"%>the code shown on the JSP:Fmt:bundlebasename= "Get.test">location of the//. properties Filespan>Read the simplest information output from the. Properties file:span> Fmt:messageKey= "Smtphostname" /> HR/> span>From the. properties file, read the information with the optional parameters and fill in the parameters and output:span> Fmt:messageKey= "Msgwithparam"> spanclass= "notice">Fmt:param

Form elements for HTML5

Forms are the means to get user input in HTML, and for Web application system and its importance, the text can not explain the problem;Directly on the code to put;Html>Htmllang="EN">Head> Metacharset="UTF-8"> Title> Create a formTitle>Head>Body> Form> InputType ="Text"> Br> Br> InputType ="Text"Value ="I am Baidu"> Br> Br

Hypertext Markup Language--html

(spaces, tabs, carriage return, line wrapping, etc.), the browser will be displayed when the resolution to a space character, in our above-mentioned example, the BODY element of the contents of the carriage return space, Basically are ignored by the browser, so in the browser window, we see the above display effect, if we want this poem to display in a certain format, we need to paragraph control tags, the following small part of the paragraph control tag to design our "brocade" code written as

Build Vxlan environment with CentOS Linux Bridge

One Basic EnvironmentUse VMware virtual two Linux machines. The CentOS 7,linux kernel is as follows:4.5.3-1.el7.elrepo.x86_64If the kernel version is too low, Vxlan is not supported. Kernel upgrades can be done with commandsRPM--import https://www.elrepo.org/RPM-GPG-KEY-elrepo.orgRPM-UVH Http://www.elrepo.org/elrepo-release-7.0-2.el7.elrepo.noarch.rpmyum--enablerepo=elrepo-kernel Install Kernel-ml-devel kernel-ml-yReboot to select New kernel after upgrade.Second, the Group Network DiagramTwo v

CSS Position Positioning Properties

the browser shrinks to this element when it is not visible.②fixed: The edge element that contains this value, and the scroll bar does not appear when the browser shrinks to this element when it is not visible.3.2 Example 3.2.1 View3.2.2 CodeDOCTYPE HTML PUBLIC "-//W3C//DTD XHTML 1.0 transitional//en" "Http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd ">Htmlxmlns= "Http://www.w3.org/1999/xhtml">Head>Title>positionTitle>StyleType= "Text/css">Div{Height:200px;Width:300px;Border-color:Black;B

Baidu Homepage HTML code

html>head>title>title>head>br/>br/>br/>br/>center>formaction="http://www.baidu.com/baidu"target="_blank">table bgcolor="#FFFFFF"align=center>tralign=center>td>inputname=tntype=hidden=baidu>imgsrc="https://www.baidu.com/img/bd_logo1.png"width=270height=129 border="0">br/>td>t

Baidu Front-end Technical College task-01

These two days found a very good learning front-end place: Baidu front-end Technical college.There are different types of tasks, the difficulty between tasks is incremental, it is suitable as an exercise.The following is the code for task-01 (which does not involve CSS):DOCTYPE HTML>HTMLLang= "en">Head> MetaCharSet= "UTF-8"> title>Baidu Front-end Technical College task-01title>Head>Body> H1Align= "Center">Baidu Front-end Technology classroom task-01H1> P>em>Strong>This is a page that

Java File Operations

. getrealpath (""); // obtain the path of the current directoryFilereader Fr = new filereader (path + "// file // Inc // t.txt"); // create a filereader object and instantiate it as frBufferedreader BR = new bufferedreader (FR); // create a bufferedreader object and instantiate it as BrString line = Br. Readline (); // read a string from a file// Judge whether the read string is not emptyWhile (line! = NULL

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