Although the Domain Name System (DNS) was designed as a naming system, its features have made it appealing to repurpose it for the deployment of novel systems. One important class of such systems are security enhancements, and this work sheds light on their deployment. We show the characteristics of these solutions and measure reliability of DNS in these applications. We investigate the compati...

BACKGROUND This article concerns Swedish family physicians' (FPs) experiences collaborating with district nurses (DNs) when the DNs provide medical treatment for home care patients. The aim was to develop a model to illuminate this process from the FPs' perspective. METHODS Semi-structured interviews were conducted with 13 FPs concerning one of their patients with home care by a DN. The inter...

The Domain Name System (DNS) is an essential infrastructure service on the internet. It provides a worldwide mapping between easily memorizable domain names and numerical IP addresses. Today, legitimate users and malicious applications use this service to locate content on the internet. Yet botnets increasingly rely on DNS to connect to their command and control servers. A widespread approach t...

We present techniques for detecting unauthorized DNS root servers in the Internet using primarily endpoint-based measurements from RIPE Atlas, supplemented with BGP routing announcements from RouteViews and RIPE RIS. The first approach analyzes the latency to the root server and the second approach looks for route hijacks. We demonstrate the importance and validity of these techniques by measur...

We collected DNS responses at the University of Auckland Internet gateway in an SQL database, and analyzed them to detect unusual behaviour. Our DNS response data have included typo squatter domains, fast flux domains and domains being (ab)used by spammers. We observe that current attempts to reduce spam have greatly increased the number of A records being resolved. We also observe that the dat...

background: diabetic peripheral neuropathy (dpn) accounts for 80% of diabetic foot ulceration; therefore neurologic examination plays a critical role in screening at risk patients. our objective was assessment the prevalence of dpn and related factors based on clinical findings. methods: this cross-sectional study was conducted on 124 diabetics who were randomly recruited from diabetes clinic o...

This paper explores taking a passive approach to covert communication over DNS. By exploiting the slack space that can be created in DNS packets, data may be inserted into packets without affecting the operation of DNS resolvers and security tools. Several locations in the packet exist that allow additional data to be inserted into the network traffic without being noticed by applications befor...

Nanodrug delivery systems have been widely reviewed for their use in several drug formulations to improve bioavailability, sustain effect, and decrease side effects of many candidate drugs. The objective of this study was to evaluate the potential of chitosan (CS)-coated nanosuspensions to enhance bioavailability and reduce the diarrheal side effect of diacerein (DCN) after oral administration....

Lagrangian particles with mixing can be used as direct numerical simulations DNS , large eddy simulations LES , or filtered density function FDF methods depending on conditions of the simulations. We estimate major parameters associated with the DNS, LES, and FDF regimes and demonstrate that, under certain conditions specified in the paper, simulations using different mixing models approach the...