Recent techniques for multicast or broadcast delivery of streaming media can provide immediate service to each client request yet achieve considerable client stream sharing (i.e., server and network bandwidth savings). This paper considers (1) the maximum savings in the required server (disk I/O and network) bandwidth that any such technique can provide, (2) the interplay between achievable red...

Two server password-based authentication protocols (Two-Server PAKE), where two servers co-operate to authenticate a client on the basis of Password only and if one server is compromised due to Insider Attack or Distributed Denial Of Service Attack (DDOS). In Asymmetric two-server PAKE protocol runs in series and only the front-end server and the client need to establish a secret session key. I...

In this paper we present an interactive GPU-based, GUI client, working with rendering server employing ray tracing based global illumination. The client is designed to guarantee interactivity (namely 1/60sec response time) no matter how slow the rendering server is. The client dynamically adjusts image resolution to match the server performance and complexity of the rendered scene. When the sce...

In this paper, we study the problem of sending an n-bit binary string drawn from a probability distribution D across a communication channel connecting a client and a server, where the bandwidth from the client to the server is much smaller than the bandwidth from the server to the client. We assume that the client knows the string x but not the distribution D, and the server knows the distribu...

Maintaining the availability of critical network servers is an important concern for many organizations. Server redundancy is the traditional approach to provide availability in the presence of failures. From the client perspective, a network-accessible service is resolved via a set of public IP addresses specified for this service. Therefore, the continued availability of a service via these I...

Service rebalancing provides a way to determine an efficient division of effort between a client and its server. Decisions concerning this division of labor are made at runtime rather than at design time. Evaluating the current environment in which the client and server are executing and moving code between client and server based upon this evaluation can enhance the performance of client-serve...

This paper identifies the current difficulties faced by the IT professionals working for collaborative enterprises and explains how we exploit and extend the so-called stateless client systems to support those individuals in cooperative work. Stateless client systems are the software tools that separate the display interface from the application logic in windowing systems. They embed a client/s...

Streaming high quality videos consumes significantly large amount of network resources. In this context request-toservice delay, network traffic, congestion and server overloading are the main parameters to be considered in video streaming over the internet that effect the quality of service (QoS). In this paper, we propose an efficient architecture as a cluster of proxy servers and clients tha...

DESIGN Jemboss is a graphical user interface (GUI) for the European Molecular Biology Open Software Suite (EMBOSS). It is being developed at the MRC UK HGMP-RC as part of the EMBOSS project. This paper explains the technical aspects of the Jemboss client-server design. The client-server model optionally allows that a Jemboss user have an account on the remote server. The Jemboss client is writt...