急，remoting的Server如何知道连接上来的Client的IP？？

cclx_net 2004-04-19 10:08:28

RT:remoting的Server如何知道连接上来的Client的IP？？

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yanwc 2004-09-29

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hychieftain 2004-04-28

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论坛下载地址：
http://kid.wincn.com/

hychieftain 2004-04-28

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可以用Request.UserHostAddress来得到Client的IP，参考天行论坛是把这个IP存到数据库的Forum_Online表里，主要语句是
GetOnline(NowPath,Action,Request.UserHostAddress,Request.UserAgent,OnlineName,OnlineClass);
函数定义如下：
public void GetOnline(string NowPath,string Action,string Ip,string Agent,string OnlineName,string OnlineClass)
{
Db List=new Db();
string Sql="Select count(*) from Forum_Online where Forum_Online_Ip='"+Ip+"'";
if (List.GetCount(Sql)>=1)
{
Sql="update Forum_Online set "+
"Forum_Online_Name='"+OnlineName+"',Forum_Online_Class="+Int32.Parse(OnlineClass)+",Forum_Online_Location='"+NowPath+"',Forum_Online_Action='"+Action+"',Forum_Online_Now=Sysdate"+" where Forum_Online_Ip='"+Ip+"'";

List.ExeSql(Sql);
}
else
{
Sql="insert into Forum_Online ("+
"Forum_Online_Name,Forum_Online_Class,Forum_Online_Ip,Forum_Online_System,Forum_Online_Browser,"+
"Forum_Online_Location,Forum_Online_Action,Forum_Online_Login,Forum_Online_Now)values("+
"'"+OnlineName+"',"+Int32.Parse(OnlineClass)+",'"+Ip+"','"+List.GetUsersInfo(Agent,1)+"','"+List.GetUsersInfo(Agent,2)+"',"+
"'"+NowPath+"','"+Action+"',sysdate,sysdate)";

List.ExeSql(Sql);
}
Sql="delete from Forum_Online where Forum_Online_Now-sysdate>30";
List.ExeSql(Sql);

jnnxwjh 2004-04-28

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将ClientIp写入Application或Database中,服务器端周期性的检查ClientIP即可.

cclx_net 2004-04-26

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踢

cclx_net 2004-04-22

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cclx_net 2004-04-21

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turnmissile 2004-04-21

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sign.

yzx110 2004-04-20

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这个没注意过，如果是局域网的话，client把它的信息以明文向服务器注册就行了。

cclx_net 2004-04-20

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兄弟们帮忙踢吧

cclx_net 2004-04-19

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分布式图书管理系统（C#），这是模仿本站的一个程序。但代码模式更简洁更易读更易调试。利用.net的remoting技术很好地实现了局域网内程序域的互访问题。经测试发布不完全版本，有兴趣地可以研究一下。文件夹结构：BLL（业务逻辑层）DLL(数据访问层）RemoteServer（启动服务器端）RemoteClient（远程客户端）IRemotingClass（客户端调用服务器端接口）RemoteWarpper（服务器端实现对IRemotingClass的调用）backup（数据库备份）。下载后需还原数据库，配置连接字符串，在DLL的DbExecute类里面。由于是分布式应用，服务器端开启后不需要指定IP,是你本地的IP地址；然后启动客户端软件，填写你所指向的服务器端IP，然后就可以进行远程进行访问了。嗬嗬，很有参考价值。本人所有程序都经过审查，保证质量，希望大家可以共同交流共同成长。QQ:63398650

分布式图书管理系统（C#），这是模仿本站的一个程序。但代码模式更简洁更易读更易调试。利用.net的remoting技术很好地实现了局域网内程序域的互访问题。经测试发布不完全版本，有兴趣地可以研究一下。文件夹结构：BLL（业务逻辑层）DLL(数据访问层）RemoteServer（启动服务器端）RemoteClient（远程客户端）IRemotingClass（客户端调用服务器端接口）RemoteWarpper（服务器端实现对IRemotingClass的调用）backup（数据库备份）。下载后需还原数据库，配置连接字符串，在DLL的DbExecute类里面。由于是分布式应用，服务器端开启后不需要指定IP,是你本地的IP地址；然后启动客户端软件，填写你所指向的服务器端IP，然后就可以进行远程进行访问了。嗬嗬，很有参考价值。本人所有程序都经过审查，保证质量，希望大家可以共同交流共同成长。QQ:63398650
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是英文的，全面包含了c#的各方面。是非常好的一本书，绝对值得下载。 Introduction xxvii Part I: The C# Language 1 Chapter 1: .NET Architecture 3 The Relationship of C# to .NET 4 The Common Language Runtime 4 Advantages of Managed Code 4 A Closer Look at Intermediate Language 7 Support for Object Orientation and Interfaces 8 Distinct Value and Reference Types 9 Strong Data Typing 9 Error Handling with Exceptions 16 Use of Attributes 17 Assemblies 17 Private Assemblies 18 Shared Assemblies 19 Reflection 19 .NET Framework Classes 19 Namespaces 21 Creating .NET Applications Using C# 21 Creating ASP.NET Applications 21 Creating Windows Forms 24 Windows Services 24 The Role of C# in the .NET Enterprise Architecture 24 Summary 26 Chapter 2: C# Basics 29 Before We Start 30 Our First C# Program 30 The Code 30 Compiling and Running the Program 31 Contents A Closer Look 31 Variables 34 Initialization of Variables 34 Variable Scope 35 Constants 38 Predefined Data Types 39 Value Types and Reference Types 39 CTS Types 40 Predefined Value Types 41 Predefined Reference Types 44 Flow Control 47 Conditional Statements 47 Loops 51 Jump Statements 54 Enumerations 55 Arrays 57 Namespaces 58 The using Statement 59 Namespace Aliases 60 The Main() Method 61 Multiple Main() Methods 61 Passing Arguments to Main() 62 More on Compiling C# Files 63 Console I/O 65 Using Comments 67 Internal Comments Within the Source Files 67 XML Documentation 68 The C# Preprocessor Directives 70 #define and #undef 70 #if, #elif, #else, and #endif 71 #warning and #error 72 #region and #endregion 72 #line 72 C# Programming Guidelines 73 Rules for Identifiers 73 Usage Conventions 74 Summary 81 Chapter 3: Objects and Types 83 Classes and Structs 84 Class Members 85 Data Members 85 Function Members 85 xi Contents readonly Fields 99 Structs 101 Structs Are Value Types 102 Structs and Inheritance 103 Constructors for Structs 103 The Object Class 104 System.Object Methods 104 The ToString() Method 105 Summary 107 Chapter 4: Inheritance 109 Types of Inheritance 109 Implementation Versus Interface Inheritance 109 Multiple Inheritance 110 Structs and Classes 110 Implementation Inheritance 111 Virtual Methods 112 Hiding Methods 113 Calling Base Versions of Functions 114 Abstract Classes and Functions 115 Sealed Classes and Methods 115 Constructors of Derived Classes 116 Modifiers 122 Visibility Modifiers 122 Other Modifiers 123 Interfaces 123 Defining and Implementing Interfaces 125 Derived Interfaces 128 Summary 130 Chapter 5: Operators and Casts 131 Operators 131 Operator Shortcuts 133 The Ternary Operator 134 The checked and unchecked Operators 134 The is Operator 135 The as Operator 136 The sizeof Operator 136 The typeof Operator 136 Contents Operator Precedence 137 Type Safety 137 Type Conversions 138 Boxing and Unboxing 141 Comparing Objects for Equality 142 Comparing Reference Types for Equality 142 The ReferenceEquals() Method 142 The virtual Equals() Method 143 The static Equals() Method 143 Comparison Operator (==) 143 Comparing Value Types for Equality 143 Operator Overloading 144 How Operators Work 145 Operator Overloading Example: The Vector Struct 146 Which Operators Can You Overload? 153 User-Defined Casts 154 Implementing User-Defined Casts 155 Multiple Casting 161 Summary 165 Chapter 6: Delegates and Events 167 Delegates 167 Using Delegates in C# 169 SimpleDelegate Example 172 BubbleSorter Example 174 Multicast Delegates 177 Events 179 The Receiver’s View of Events 180 Generating Events 182 Summary 186 Chapter 7: Memory Management and Pointers 187 Memory Management under the Hood 187 Value Data Types 188 Reference Data Types 190 Garbage Collection 192 Freeing Unmanaged Resources 193 Destructors 193 The IDisposable Interface 195 xiii Contents Implementing IDisposable and a Destructor 196 Unsafe Code 197 Pointers 198 Pointer Example: PointerPlayaround 207 Using Pointers to Optimize Performance 212 Summary 216 Chapter 8: Strings and Regular Expressions 217 System.String 218 Building Strings 219 Format Strings 223 Regular Expressions 229 Introduction to Regular Expressions 229 The RegularExpressionsPlayaround Example 230 Displaying Results 233 Matches, Groups, and Captures 234 Summary 237 Chapter 9: Collections 239 Examining Groups of Objects 239 Array Lists 240 Collections 241 Dictionaries 245 Summary 256 Chapter 10: Reflection 257 Custom Attributes 258 Writing Custom Attributes 258 Custom Attribute Example: WhatsNewAttributes 262 Reflection 265 The System.Type Class 266 The TypeView Example 268 The Assembly Class 271 Completing the WhatsNewAttributes Sample 272 Summary 276 Contents Chapter 11: Errors and Exceptions 277 Looking into Errors and Exception Handling 277 Exception Classes 278 Catching Exceptions 280 User-Defined Exception Classes 290 Summary 297 Part II: The .NET Environment 299 Chapter 12: Visual Studio .NET 301 Working with Visual Studio .NET 2003 301 Creating a Project 304 Solutions and Projects 311 Windows Application Code 314 Reading in Visual Studio 6 Projects 314 Exploring and Coding a Project 315 Building a Project 326 Debugging 331 Other .NET Tools 334 The ASP.NET Web Matrix Project 335 WinCV 335 Summary 337 Chapter 13: Assemblies 339 What Are Assemblies? 339 The Answer to DLL Hell 340 Features of Assemblies 341 Application Domains and Assemblies 341 Assembly Structure 344 Assembly Manifests 346 Namespaces, Assemblies, and Components 346 Private and Shared Assemblies 347 Viewing Assemblies 347 Building Assemblies 348 Cross-Language Support 353 The CTS and the CLS 353 Language Independence in Action 354 CLS Requirements 364 xv Contents Global Assembly Cache 366 Native Image Generator 366 Global Assembly Cache Viewer 367 Global Assembly Cache Utility (gacutil.exe) 368 Creating Shared Assemblies 369 Shared Assembly Names 369 Creating a Shared Assembly 371 Configuration 376 Configuration Categories 376 Versioning 377 Configuring Directories 387 Summary 390 Chapter 14: .NET Security 391 Code Access Security 392 Code Groups 393 Code Access Permissions and Permissions Sets 399 Policy Levels: Machine, User, and Enterprise 403 Support for Security in the Framework 405 Demanding Permissions 406 Requesting Permissions 407 Implicit Permission 410 Denying Permissions 411 Asserting Permissions 412 Creating Code Access Permissions 414 Declarative Security 414 Role-Based Security 415 The Principal 415 Windows Principal 416 Roles 417 Declarative Role-Based Security 418 Managing Security Policy 419 The Security Configuration File 419 Managing Code Groups and Permissions 423 Turning Security On and Off 423 Resetting Security Policy 423 Creating a Code Group 423 Deleting a Code Group 424 Changing a Code Group’s Permissions 424 Creating and Applying Permissions Sets 425 Distributing Code Using a Strong Name 427 Contents Distributing Code Using Certificates 429 Managing Zones 435 Summary 437 Chapter 15: Threading 439 Threading 439 Applications with Multiple Threads 441 Manipulating Threads 441 The ThreadPlayaround Sample 444 Thread Priorities 448 Synchronization 449 Summary 453 Chapter 16: Distributed Applications with .NET Remoting 455 What Is .NET Remoting? 456 Application Types and Protocols 456 CLR Object Remoting 457 .NET Remoting Overview 457 Contexts 460 Activation 461 Attributes and Properties 461 Communication between Contexts 462 Remote Objects, Clients, and Servers 462 Remote Objects 462 A Simple Server 464 A Simple Client 465 .NET Remoting Architecture 466 Channels 466 Formatters 470 ChannelServices and RemotingConfiguration 471 Object Activation 472 Message Sinks 476 Passing Objects in Remote Methods 476 Lifetime Management 481 Miscellaneous .NET Remoting Features 484 Configuration Files 484 Hosting Applications 494 Classes, Interfaces, and SoapSuds 495 Asynchronous Remoting 498 Remoting and Events 499 Call Contexts 505 Summary 507 xvii Contents Chapter 17: Localization 509 Namespace System.Globalization 510 Unicode Issues 510 Cultures and Regions 511 Cultures in Action 516 Sorting 520 Resources 522 Creating Resource Files 522 ResGen 523 ResourceWriter 523 Using Resource Files 524 The System.Resources Namespace 527 Localization Example Using Visual Studio .NET 527 Outsourcing Translations 533 Changing the Culture Programmatically 534 Using Binary Resource Files 536 Using XML Resource Files 537 Automatic Fallback for Resources 539 Globalization and Localization with ASP.NET 539 A Custom Resource Reader 540 Creating a DatabaseResourceReader 541 Creating a DatabaseResourceSet 542 Creating a DatabaseResourceManager 543 Client Application for DatabaseResourceReader 544 Summary 544 Chapter 18: Deployment 545 Designing for Deployment 545 Deployment Options 546 Xcopy 546 Copy Project 546 Deployment Projects 546 Deployment Requirements 546 Simple Deployment 547 Xcopy 548 Xcopy and Web Applications 548 Copy Project 550 Installer Projects 551 What Is Windows Installer? 551 Creating Installers 552 Advanced Options 562 Summary 569 Contents Part III: Windows Forms 571 Chapter 19: Windows Forms 573 Creating a Windows Form Application 574 Control Class 579 Size and Location 580 Appearance 580 User Interaction 580 Windows Functionality 582 Miscellaneous Functionality 582 Class Hierarchy 582 Standard Controls and Components 584 Forms 598 Form Class 599 Multiple Document Interface (MDI) 607 Custom Controls 610 Summary 622 Chapter 20: Graphics with GDI+ 623 Understanding Drawing Principles 624 GDI and GDI+ 624 Drawing Shapes 626 Painting Shapes Using OnPaint() 629 Using the Clipping Region 630 Measuring Coordinates and Areas 632 Point and PointF 632 Size and SizeF 634 Rectangle and RectangleF 635 Region 636 A Note about Debugging 637 Drawing Scrollable Windows 638 World, Page, and Device Coordinates 644 Colors 645 Red-Green-Blue (RGB) Values 645 The Named Colors 646 Graphics Display Modes and the Safety Palette 646 The Safety Palette 647 Pens and Brushes 648 Brushes 648 Pens 649 xix Contents Drawing Shapes and Lines 650 Displaying Images 652 Issues When Manipulating Images 655 Drawing Text 655 Simple Text Example 656 Fonts and Font Families 657 Example: Enumerating Font Families 659 Editing a Text Document: The CapsEditor Sample 661 The Invalidate() Method 666 Calculating Item Sizes and Document Size 667 OnPaint() 668 Coordinate Transforms 670 Responding to User Input 671 Printing 675 Implementing Print and Print Preview 676 Summary 680 Part IV: Data 683 Chapter 21: Data Access with .NET 685 ADO.NET Overview 685 Namespaces 686 Shared Classes 686 Database-Specific Classes 687 Using Database Connections 688 Using Connections Efficiently 689 Transactions 692 Commands 693 Executing Commands 694 Calling Stored Procedures 698 Fast Data Access: The Data Reader 701 Managing Data and Relationships: The DataSet Class 704 Data Tables 704 Data Columns 705 Data Relationships 711 Data Constraints 713 XML Schemas 715 Generating Code with XSD 716 Populating a DataSet 721 Populating a DataSet Class with a Data Adapter 722 Populating a DataSet from XML 723 xx Contents Persisting DataSet Changes 723 Updating with Data Adapters 724 Writing XML Output 726 Working with ADO.NET 728 Tiered Development 728 Key Generation with SQL Server 730 Naming Conventions 732 Summary 734 Chapter 22: Viewing .NET Data 735 The DataGrid Control 735 Displaying Tabular Data 735 Data Sources 738 DataGrid Class Hierarchy 746 Data Binding 750 Simple Binding 750 Data-Binding Objects 751 Visual Studio.NET and Data Access 757 Creating a Connection 758 Selecting Data 759 Generating a DataSet 762 Updating the Data Source 763 Building a Schema 764 Other Common Requirements 770 Summary 778 Chapter 23: Manipulating XML 781 XML Standards Support in .NET 782 Introducing the System.Xml Namespace 782 Using MSXML in .NET 783 Using System.Xml Classes 786 Reading and Writing Streamed XML 786 Using the XmlTextReader Class 787 Using the XmlValidatingReader Class 791 Using the XmlTextWriter Class 794 Using the DOM in .NET 795 Using the XmlDocument Class 797 Using XPath and XSLT in .NET 802 The System.Xml.XPath Namespace 803 The System.Xml.Xsl Namespace 807 Contents XML and ADO.NET 812 Converting ADO.NET Data to XML 812 Converting XML to ADO.NET Data 820 Reading and Writing a DiffGram 822 Serializing Objects in XML 825 Serialization without Source Code Access 833 Summary 836 Chapter 24: Working with Active Directory 837 The Architecture of Active Directory 838 Features 838 Active Directory Concepts 839 Characteristics of Active Directory Data 843 Schema 843 Administration Tools for Active Directory 845 Active Directory Users and Computers 845 ADSI Edit 846 Active Directory Service Interfaces (ADSI) 847 Programming Active Directory 848 Classes in System.DirectoryServices 849 Binding 849 Getting Directory Entries 854 Object Collections 855 Cache 857 Creating New Objects 857 Updating Directory Entries 858 Accessing Native ADSI Objects 859 Searching in Active Directory 860 Searching for User Objects 864 User Interface 864 Get the Schema Naming Context 864 Get the Property Names of the User Class 866 Search for User Objects 867 Summary 869 Part V: Web Programming 871 Chapter 25: ASP.NET Pages 873 ASP.NET Introduction 874 State Management in ASP.NET 875 xxii Contents ASP.NET Web Forms 875 ASP.NET Server Controls 880 ADO.NET and Data Binding 892 Updating the Event-Booking Application 893 More on Data Binding 901 Application Configuration 906 Summary 907 Chapter 26: Web Services 909 SOAP 910 WSDL 911 Web Services 913 Exposing Web Services 913 Consuming Web Services 916 Extending the Event-Booking Example 918 The Event-Booking Web Service 919 The Event-Booking Client 922 Exchanging Data Using SOAP Headers 924 Summary 929 Chapter 27: User Controls and Custom Controls 931 User Controls 932 A Simple User Control 932 Custom Controls 939 Custom Control Project Configuration 940 Basic Custom Controls 944 Creating a Composite Custom Control 949 A Straw Poll Control 951 The Candidate Controls 953 The StrawPoll Control Builder 954 Straw Poll Style 955 The Straw Poll Control 956 Summary 962 Part VI: Interop 963 Chapter 28: COM Interoperability 965 .NET and COM 966 Metadata 966 Freeing Memory 966 xxiii Contents Interfaces 967 Method Binding 969 Data Types 969 Registration 969 Threading 969 Error Handling 971 Event Handling 972 Marshaling 972 Using a COM Component from a .NET Client 973 Creating a COM Component 973 Creating a Runtime Callable Wrapper 977 Threading Issues 980 Adding Connection Points 980 Using ActiveX Controls in Windows Forms 982 Using COM Objects from within ASP.NET 985 Using a .NET Component from a COM Client 985 COM Callable Wrapper 986 Creating a .NET Component 986 Creating a Type Library 987 COM Interop Attributes 989 COM Registration 992 Creating a COM Client 993 Adding Connection Points 995 Creating a Client with a Sink Object 996 Running Windows Forms Controls in Internet Explorer 997 Summary 998 Chapter 29: Enterprise Services 999 Overview 999 History 999 Where to Use Enterprise Services? 1000 Contexts 1001 Automatic Transactions 1001 Distributed Transactions 1001 Object Pooling 1002 Role-based Security 1002 Queued Components 1002 Loosely Coupled Events 1002 Creating a Simple COM+ Application 1003 Class ServicedComponent 1003 Application Attributes 1003 Creating the Component 1004 Contents Deployment 1005 Automatic Deployment 1005 Manual Deployment 1005 Component Services Admin Tool 1006 Client Application 1008 Transactions 1009 ACID Properties 1009 Transaction Attributes 1009 Transaction Results 1010 Sample Application 1011 Summary 1021 Part VII: Windows Base Services 1023 Chapter 30: File and Registry Operations 1025 Managing the File System 1026 .NET Classes That Represent Files and Folders 1027 The Path Class 1029 Example: A File Browser 1030 Moving, Copying, and Deleting Files 1035 Example: FilePropertiesAndMovement 1035 Reading and Writing to Files 1039 Streams 1040 Reading and Writing to Binary Files 1042 Reading and Writing to Text Files 1047 Reading and Writing to the Registry 1054 The Registry 1055 The .NET Registry Classes 1057 Example: SelfPlacingWindow 1059 Summary 1066 Chapter 31: Accessing the Internet 1067 The WebClient Class 1068 Downloading Files 1068 Basic Web Client Example 1068 Uploading Files 1070 WebRequest and WebResponse Classes 1070 Other WebRequest and WebResponse Features 1071 Displaying Output as an HTML Page 1074 The Web Request and Web Response Hierarchy 1075 xxv Contents Utility Classes 1077 URIs 1077 IP Addresses and DNS Names 1079 Lower-Level Protocols 1082 Lower-Level Classes 1083 Summary 1088 Chapter 32: Windows Services 1091 What Is a Windows Service? 1091 Windows Services Architecture 1093 Service Program 1093 Service Control Program 1095 Service Configuration Program 1095 System.ServiceProcess Namespace 1095 Creating a Windows Service 1096 A Class Library Using Sockets 1096 TcpClient Example 1100 Windows Service Project 1102 Threading and Services 1107 Service Installation 1107 Installation Program 1108 Monitoring and Controlling the Service 1113 MMC Computer Management 1114 net.exe 1114 sc.exe 1115 Visual Studio .NET Server Explorer 1116 ServiceController Class 1116 Troubleshooting 1122 Interactive Services 1123 Event Logging 1123 Performance Monitoring 1130 Power Events 1135 Summary 1135 At www.wrox.com Appendix A: Principles of Object-Oriented Programming 1137 Appendix B: C# for Visual Basic 6 Developers 1177 Appendix C: C# for Java Developers 1225 Appendix D: C# for C++ Developers 1253 Index 1307

In short, the Remoting Server can make use of Sink and Sink Provider to retrieve the IP address of the incoming request. The IP address is available in the Transport Headers of the incoming message. A

环境：Cent OS 7.0背景:这篇文章的标题可以设置为如下几个，因为他都是同一个解决方法：（1）Dubbo注册zookepper时为什么会自动使用内网IP？（2）Dubbo消费者无法连接到生产者提供的服务（3）。。。场景还原1、项目部署架构最近在开发一个项目，使用到Dubbo服务，以下是项目部署的情况，详细说明如下（IP地址不具有可连通性，为了具体情况假设，大家不要试了！）：1、服务

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