cip checklist

First word: masquerade indicates the meaning of makeup disguise... NatTest Machine: VM1 VM2 vm3 three virtual machine VM1 has a dual Nic, a connection to the Internet a host-only connection to the Intranet, the network structure of the LVS--NAT environment is deployed Both VM2 and vm3 are in the host-only network. Lab physical structure: Lab diagram and address Distribution Description: the IP address of clinet is CIP. In this experiment, the VIP addr

function GetIP () {if (!empty ($_server["Http_client_ip")) {$cip = $_server["Http_client_ip"];} elseif (!empty ($_server ["Http_x_forwarded_for"])){$cip = $_server["Http_x_forwarded_for"];} ElseIf (!empty ($_server["REMOTE_ADDR"])) {$cip = $_server["REMOTE_ADDR"];} else{$cip = "Cannot get!"";} return $

("http_x_forwarded_for"); } ElseIf (getenv ("Http_client_ip")) { $ip = getenv ("Http_client_ip"); } ElseIf (getenv ("REMOTE_ADDR")) { $ip = getenv ("remote_addr"); } else { $ip = "Unknown"; } Echo $ip; Method 5: if (getenv (' http_client_ip ')) { $onlineip = getenv (' http_client_ip '); } elseif (' getenv For ') { $onlineip = getenv (' http_x_forwarded_for '); } elseif (getenv (' remote_addr ')) { $onlineip = getenv (' remote_addr '); } else { $onlineip = $HTTP _serv

request Dip:ds and RS communicate with each other RIP: Back-end server IP Cip:client IP Client IP CIP How the Lvs-nat type works: When a user requests to reach the director Server, the requested data message is first reached to the prerouting chain in the kernel space. At this point the source of the message IP for the CIP, the target IP for VIP prerouting check found that the target IP packet is local,

destination IP of the request message 1. Lvs-nat mode Working principle:主要是数据到达VS后，VS根据VSIP和调度算法，去服务地址池中去查找哪些节点提供此服务，然后将数据包的Dip改为RSip，可能还会改变Dport。然后RS上的网关需指向DIP。VS最终对用户做响应Application Scenarios:1、此模式对RS修改较少， 2. LVS-DR mode Working principle:主要是数据回去不经过VS，CIP数据到网关，然后网关去找VIP地址，数据到达VIP之后，VIP根据调度算法，转发给响应的RIP，此时目标MAC构建为RIP的MAC地址，此时数据转发出去，不经过TCP/IP的ip层检查。不会经过网关，通过交换机时查看mac表，然后转发给RIP，因此VS和RS必须在同一个交换机下，但是不用在同一个ip网络中，然后RIP收到ip地址，查看mac是自己的

# Region Set or obtain the selected checkboxlist value. /**/ /// /// Initialize the checked items in the checkboxlist. /// /// Checkboxlist /// The selected value string, for example, ", 1" /// The delimiter used in the value string, such as a comma in ", 1 ". Public Static String Setchecked (checkboxlist checklist, String Selval, String Separator) ... {Selval = Separator + Selv

demonstration of dialog. Dialog -- clear The entire screen is cleared and left Dialog -- create-RC file Dialog supports dynamic planning, which generates a sample. Dialog [-- Title] [-- backtitle] [-- Clear] [-- separate-output] box-Options -- Title Title text on the dialog box -- Backtitle Desktop background title Box-Options Dialog currently provides yes/no box, menu box, input box, message box, text There are nine widgets in box, info

It is a good idea to establish a database table maintenance specification on a regular basis, instead of checking the database table until the problem arises. Taking into account the creation of a schedule for preventive maintenance to assist with automatic problems, you can take measures to correct: Execute regular database backup and Allow Log updates. Schedule regular table checks. Checklist It is a good idea to establish a database table maintenan

----------------------------------------------- Begin --------------------------------------------- Title: Checklist: Protecting Data Access Time: 2004-12-10 11:00:00 Introduction: This checklist is the guide section for the units "building secure data access" and "securing your database server. Use it to help you build secure data access or provide a brief description of the corresponding unit. -----------

LVS Nat Model Creation I. Nat model topology of LVS When a client requests a message, director is used to change the target IP address for forwarding. (When directed ctor, the target IP address is changed from VIP to rip, but when the request message is sent from Director, it is still sent from the interface of the NIC where the dip is located .) Packet Flow Direction: 1-> 2-> 3 The source address of 1 is CIP, and the target address is ctor's VIP. The

released to the user space. 4. If the destination address and port inside the packet are within the rule, then this data message will be modified to the destination address as a pre-defined backend server and sent to the postrouting chain. 5. Finally, the backend server is sent through the postrouting chain.Three. Package forwarding model for LVS1.NAT Models:650) this.width=650; "src=" Http://s4.51cto.com/wyfs02/M01/83/6A/wKioL1dzI7jzvOgZAABXr1zmtqQ618.jpg "title=" 002. JPG "alt=" wkiol1dzi7jzv

; "src=" http://s3.51cto.com/wyfs02/M01/6F/79/wKiom1WdPJ-BScRBAAFxR5E55Eg076.jpg "style=" float: none; "title=" Image8.png "alt=" Wkiom1wdpj-bscrbaafxr5e55eg076.jpg "/>Effect650) this.width=650; "src=" Http://s3.51cto.com/wyfs02/M02/6F/79/wKiom1WdPMCAb_UyAAFej98IEfo453.jpg "title=" Image9.png "alt=" Wkiom1wdpmcab_uyaafej98iefo453.jpg "/> Dr ModelFirst, the benefit of the DR Model relative to the NAT model is that the Director receives the request only and forwards it to the Real server, wi

PHP access to client IP, simple and practical function Getonlineip () { $cip = getenv (' http_client_ip '); $XIP = getenv (' http_x_forwarded_for '); $rip = getenv (' remote_addr '); $srip = $_server [' REMOTE_ADDR ']; if ($cip strcasecmp ($cip, ' unknown ')) { $onlineip = $cip; } elseif ($xip strcasecmp ($XI

Copy Code code as follows: Import java.io.UnsupportedEncodingException; Import java.security.InvalidKeyException; Import Java.security.MessageDigest; Import java.security.NoSuchAlgorithmException; Import Java.security.PrivateKey; Import Java.security.PublicKey; Import Java.security.SecureRandom; Import javax.crypto.BadPaddingException;Import Javax.crypto.Cipher;Import javax.crypto.IllegalBlockSizeException;Import Javax.crypto.KeyGenerator;Import javax.crypto.NoSuchPaddingException

(server);(2) data sharing;shared storage;Nas:network attached Storage (file level);San:storage Area Network (Block level);Ds:distributed Storage;Data synchronization:Rsync...Type of LVS:Lvs-natLVS-DR (Direct routing)Lvs-tun (IP tunneling)Lvs-fullnat (simultaneous change of the source IP and destination IP of the request message)Note: The first three types are standard; Fullnat is the type that is added later, the kernel may not support it by default;Lvs-nat:Multi-Objective Dnat: By modifying th

=Document.queryselector ("#reverse"); varFlagcheck=document.getElementById ("Flagcheck"); varChecklist=Document.queryselectorall ("#checkboxList Input"); functionCheckall () { for(varJ= 0; JChecklist.length; J++) { if(!checklist[j].checked) { Break; } } if(J==checklist.length) {//alert ("All Is true")flagcheck.checked= true; }Else { //alert ("At least one is not true");flagcheck.checked= false; }

is they comprehensive? i.e. have at least your agreed on code coverage. Do unit tests actually test, the code is performing the intended functionality? is arrays checked for ' out-of-bound ' errors? Could any test code being replaced with the use of an existing API? You'll also want to add-checklist any language-specific issues that can cause problems.The checklist is deliberately not exha

. Checkboxlist is used to collect and display hobbies. Method: ...... 1. During collection, the items selected in the checkboxlist are converted into strings and separated by commas (,).Here, you only need to call the getchecked (checkboxlist checklist, string separator) method)You can get the desired data. Then store the data in the database. 2. Obtain the favorite data from the library (strings separated by commas (,) first ),Then call the

following points are summed up:1, to strengthen the importance of the issue of the degree, can not have a fluke mentality;2, the use of mobile statistics tools (currently we are using Baidu Mobile statistics) during the operation of the bug analysis;Note: Baidu Mobile statistics in the error report can be located to the code line of the bug, the bug processing is very convenient, during the product testing can also be fully utilized;3, product release before the code, especially for inexperienc

features. The main role of this process is to document existing risks and accumulate knowledge and skills for the project team to predict future events. Identify Risks: inputs, tools and technologies and outputs Data Flow chart for identifying risks2.1 checklist analysis Risk identification checklist can be prepared based on historical information and knowledge of similar projects and other sources in th