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Frequently Asked Questions

Q 2r-05: Can a process be both a server and a client?

DCE Frequently Asked Questions
A program might act as a server for interface A, and also as a client for interface B. This is easy. The program merely imports interface B like a normal client and exports interface A like a normal server. A program might want to provide a service, and also act as a client to other servers that provide the same service. In this case, the programmer must expend more effort. The problem is that the names of the server-side functions (manager routines) clash with the names of the client stubs.

Q 2r-09: How can a server identify the client that has called it?

DCE Frequently Asked Questions
The details vary, depending on exactly what you want to identify about the client, but it all comes down to handles. The server must receive a binding handle in order receive information about the client. If there is not a binding handle in the parameter list as defined in the IDL file, then use the [explicit_handle] attribute in the ACF file to add one when building the server.

Can the server and client be using different operating systems?

Synergy Frequently Asked Questions
Yes. The synergy network protocol is platform neutral so synergy doesn't care what operating systems are running on the server and clients.

What is Client/Server?

faqs on computer networks - SURESHKUMAR.NET FORUMS
Clients and Servers are separate logical entities that work together over a network to accomplish a task. Many systems with very different architectures that are connected together are also called Client/Server.

What is client-server mode? Why would I use it?

SEER*Stat Frequently Asked Questions
SEER*Stat can operate in one of two modes, "local" and "client-server". In local mode, all processing and data are local to your PC environment; that is, your PC performs all calculations, and the program and data files are stored on the PC's hard drive, your local network, or a CD. In client-server mode, the SEER*Stat software installed on your PC is the client and contacts the SEER server via the Internet to access data and perform calculations. Internet Connection Not Required.

Q 2r-08: How can a server detect that a client has exited or crashed?

DCE Frequently Asked Questions
The context handle provides this ability. When a context handle is created and passed to the client, the DCE runtime library keeps track of the connection between client and server; this may be done in the network code as in the case of TCP, or by DCE-specific ping messages if a connectionless protocol is used. When the client dies, the server is notified and executes a "rundown" function to clean up its data structures.

Why is the X usage of "server" and "client" backwards from everyone else's?

tinyX Window System Frequently Asked Questions (FAQ) List
People who have worked in LAN-type environments are easily confused by the X notions of client and server. In such a scenario, one might have dozens of "client" machines, each running an X server which uses the network to connect to X clients (application programs) running on the "server" in the machine room. However, X's client/server terminology makes perfect sense if one thinks about what resources are in demand, and what program's job it is to service requests.

What data are transferred from my PC in client-server mode?

SEER*Stat Frequently Asked Questions
Communications include username-password authentication, the server letting the desktop know what databases the specified user has access to, communications of analysis parameters to the server, and results (the calculated statistics) being returned from the server. In some situations, standard population or expected rate files that you created with SEER*Prep may be transferred to the SEER servers.

How does security context get established between client and server?

CORBASEC Frequently Asked Questions and Answers
Olivier Onimus (July, 1998) : This is done by sending client's credentials. The server can authenticate the client and get the session key with which the communication will be encrypted. Then the communication will be encrypted, using this context. The credentials are not sent anymore, only a reference on an existing context. Jonathan Biggar (July, 1998) : [in addition to the above] The encryption is optional, depending on the Quality of Protection (QoP) you have chosen.

Hmm..I'm confused. What does a client do? What's a server?

Undernet IRC FAQ [Part I] (updated 1st June 1996)
irc client reads in the commands that you give it, and parses them. It filters them and performs the appropriate actions, and if necessary, passes them on to a 'server'. An IRC server can serve many other clients. The server holds information about the channels and people on IRC, amongst other pieces of information. It is also responsible for routing your messages to other people on IRC.

Q2. Can Server operate without Client?

Support - VeraLab Computer Lab Software | Suricatta Software
A2. Yes. Server can perform all operations without Client except for computer locking, surveillance, and software metering. However, we recommend you to evaluate all the features.

Is Ziata! Client-Server?

FAQs
Ziata! is purposely not client-server software. This allows it to be compatible with the smallest and largest network installations. You do not need to purchase Exchange Server, SQL Server or similar other, very expensive, products. Ziata! will operate as wonderfully on a simple standard Windows network system as it will on a full blown multinational corporation network system. Although Ziata! does not require Exchange Server, if you have it, Ziata! will work great with it.

Is QEI a client/server application?

PCF Ltd - Frequently Asked Questions
No - the database engine is integrated into the application. However, you can install and run QEI on a remote server in the same way that you can have shared copies of Microsoft Office applications like Word or Excel. It is however possible to create a true client server environment running QEI if it is deployed using Windows Terminal Server or Citrix.

Do I need Client Access on my server?

FAQ
When using TCP/IP connections on your server or PC to the AS/400, TECA Data400 does not require Client Access or any other connectivity products.

Can I have a client with their own domain on my server?

Netsong - FAQ..Frequently Asked Questions..
You can have multiple domains resolve to one virtual server. In addition you can do virtual hosting for these domain names

What is client/server networking?

Eden Engineering
Conceptually, client/server networking is like peer-to-peer networking. In practice though, it is more robust. In a client/server configuration, resource sharing is restricted to fewer, more powerful peers called servers which provide centralized user authentication and security access to resources. Client/server configurations allow both data and program sharing and are not restricted to only DOS-based programs.

So how does a client talk to the server?

Frequently Asked Question for The Rossum Project and RP1 Rob...
The client communicates through a socket connection. The server does not need to be on the same host as the client, though it often will (using the "loopback" IP address 127.0.0.1). RP1 implements a simple protocol for client-server communications. The client sends messages called "requests" to the server. The server sends messages called "events" to the client. If you look at the RP1 code, you will note Java classes corresponding to each: RsWheelMotionRequest.

Do you have client-side and server-side solutions?

Netsurfer, Inc. Press & Events
Netsurfer's Netkit Subscriber Connectivity Management Suite focuses on modular client-side software with some server-side configuration. We believe that this approach benefits service providers immensely, as they do not have to invest heavily on server-side software, equipment and programming. In addition, they can utilize a variety of existing back-office applications according to their needs.

What is Client-Server mode (PRO only)?

Frequently Asked Questions about OsaSync
OsaSync PRO can be installed in two modes, a Peer-to-Peer mode and a Client-Server mode. Client-Server mode means that each computer running Outlook (= the Client computer) is configured to 'see' the central server. All data used by OsaSync to exchange new and changed Outlook items between synchronized computers will be stored on the server. It is less work to configure your computers.

Which server do I connect my client to?

It's usually best to try and connect to one geographically close, even though that may not be the best. You can always ask when you get on irc. You need to connect to a server connected to the IRCNet to join the regulars on #DeepPurple. Here's a list of servers avaliable for connection: This is, by no means, a comprehensive list, but merely a start. Connect to one of these servers and join the channel #DeepPurple
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