Most modern cyber crime leverages the Domain Name System (DNS) to attain high levels of network agility and make detection of Internet abuse challenging. The majority of malware, which represent a key component of illicit Internet operations, are programmed to locate the IP address of their command-and-control (C&C) server through DNS lookups. To make the malicious infrastructure both agile and...

One major question facing operators everywhere is how to be sure that everything goes fine as well as how black holes can be detected in their networks? Passive network monitoring is very suitable for this purpose. It can be used for searching problems of a single network device, a major problem affecting the whole LAN or core network. Passive network monitoring, however, is not just for proble...

Active learning in relational networks has gained popularity in recent years, especially for scenarios when the costs of obtaining training samples are very high. We investigate the problem of active learning for both singleand multi-labeled relational network classification in the absence of node features during training. The problem becomes harder when the number of labeled nodes available fo...

Modern Network Interface Cards (NICs) incorporate programmable processors, DMA channels, and a significant amount of memory on them. Thus, they are becoming faster, smarter, and intelligent and are being designated as “Active Network Interfaces.” Similar to an executive offloading common tasks to his/her secretary, a modern NIC provides flexibility to offload parts of a communication protocol f...

Context-aware computing can play a major role to improve the services of mobile networking systems. In this paper, we focus on optimizing handover decisions in heterogeneous environments, where the user has a choice among different mobile networks and access points. In our approach, the decision is not only based on the signal quality, but also on the knowledge about the context of mobile devic...

The growing interest in multicast applications for the Internet, that will increase with the introduction of active network technology, brings out the need for providing effective congestion control mechanisms. This paper studies the problems and specific requirements for multicast congestion control. From this study, a general mechanism is proposed and its advantages and compliance with the re...

Active networks are aimed at incorporating programmability into the network to achieve extensibility. An approach to obtaining extensibility is based on downloading router programs into network nodes. Although promising, this approach raises several critical issues: expressiveness to enable programmability at all levels of networking, safety and security to protect shared resources, and eecienc...

The growing popularity of social networks has generated interesting data analysis problems. At the same time, it has raised important privacy concerns, because social networks contain personal and sensitive information. Consequently, social graphs, which express the relations between the actors in a social network, ought to be sanitized or anonymized before being published. Most work on privacy...

Active networks enable customization of network functionality without the lengthy standard-mediated committee processes. Most of the works in the literature utilize the capsules or active packets as the means to transfer code information across active networks. In this paper, we propose an active network infrastructure based on mobile agents technologies. In our prototype implementation, mobile...

Active services networks will give to users the flexibility to have access to custom services created by them or third party service providers. The Internet will become much more attractive but also services will turn out to be more versatile. The complexity of such a system is expected to be very high making traditional network management strategies unable to cope with the organization of the ...