RDDR : n-versioning of microservices

N-versioning is a well-studied method to increase the reliability of software. In this paper, we study n-versioning as applied to microservice-based applications. We construct a generic proxy called RDDR that orchestrates and monitors N variants of a microservice in order to detect bugs that make them behave differently. We showcase RDDR's ability to close five exemplary information leaks, where diversity is derived from: different software versions, different implementations of the same logical service, and variation provided by the OS like ASLR. These case studies feature information leakage through both frontend and backend interfaces of various web applications. To show that RDDR can close vulnerabilities while handling large volumes of benign tra ffic, we also apply RDDR to components of GitLab, a complex cloud application. Finally, we quantify the performance overhead associated with deploying RDDR. Our findings indicate that RDDR can patch information leaks while incurring approximately 3x CPU and memory overhead for a deployment with 3 redundant instances as expected, with modest impact to throughput and latency.Electrical and Computer Engineerin

Courier Volume III, Number 1, Whole Number 17, March 1963

The Iron Monster, the Crackling Insects of Onondaga County, and Stephen Crane by Lester G. Wells; Horatio Alger and Ralph D. Gardner; Park Benjamin, Lillian B. Gilkes, and the Lanier Library; I Knew Stephen Crane at Syracuse; Chiromancers off the Scent; How about it, Tar Heels?; The Value of a Box of Old Letters; The Sir John Simeon Collection of Victorian Correspondence; Adult Education Materials; Dawson\u27s of Los Angeles; Page Proofs of Elizabeth Barrett Browning\u27s Aurora Leigh; Gypsies at Leeds; The Passing of a Great Lady; Leary\u27s Emporium Librorum; Back Numbers of the Courier; James Gibbons Huneker and Dr. Arnold T. Schwab; The Courier\u27s Hall of Donors Fame; Faults Escaped; Memorials

Echo, Winter/Spring 2009

Student-produced magazine formerly published as Chicago Arts and Communication, changed to Echo magazine in 1997. Cover Articles: Left side story: the everyday struggles of a southpaw; Does your budget make cents?; the Daley Show: why Chicago loves political comedy; WoW! we take on BlizzCon; Six quick fixes (from cars to colds); Check out our Facebook page. 66 pages.https://digitalcommons.colum.edu/echo/1025/thumbnail.jp

The Diamond, November 8, 2019

Front Page: Dordt Student Selected as National FFA Representative; Entomology Class Inspects and Identifies Insects; Students Dedicate Senior Design Project to Haitian Orphanage News: California Wildfires Run Rampant Again; Cheating and Academic Dishonesty at Dordt; Humans vs. Zombies Returns to Dordt; Kielstra Research and Scholarship Center; Planning for PLIA; Opinion: the Prodigal Son Returns: Kanye West and Jesus Is King; Practice Pays Off: Music Departmental Recital; The Price Is Fright on Saturday Night Feature: Kill the Conversation? Chapel Series on Sexuality Creates Controversy; Dordt Professor Selected for NASA Research; Midwest Miseries to A-maize-ing Memories: The Kernel Journal; The Sneaker Obsession; Food Insecurity: Are You Hungry?; A Fishy Roommate; CORE 160 Art Trip Provides New Perspective on Art Sports: Dordt Football Keeps on Moving; Dordt Basketball Teams Jump Into New Season Arts & Entertainment: Maleficent 2: Transformed by Love; Fall/Winter 2019 Movie Preview; A Capella Group Tonic Sol-Fa Takes the Stage at B.J. Haan; 2019 Addams Family Resurrects Beloved Characters (In More Ways Than One) The Back Page: Jesus Is King Album Review; Editor\u27s Corner: Anticipating the Zirconhttps://digitalcollections.dordt.edu/dordt_diamond/1818/thumbnail.jp

The Trail, 1993-09-16

https://soundideas.pugetsound.edu/thetrail_all/2619/thumbnail.jp

Mount Vernon Democratic Banner June 4, 1896

Mount Vernon Democratic Banner was a newspaper published weekly in Mount Vernon, Ohio. Until 1853, it was published as the Democratic Banner.https://digital.kenyon.edu/banner1896/1031/thumbnail.jp

Las Vegas Optic, 07-09-1913

https://digitalrepository.unm.edu/lvdo_news/3042/thumbnail.jp

Thematic Approach to Teaching Science in Kindergarten for Use with First and Second Language Students

Thematic Science units were established for the Wapato kindergarten in both Spanish and English. Approximately three hundred students are participants in the program for which this curriculum was designed. This study suggests how selected science objectives may be implemented using the thematic approach. Each theme contains a media resource list of Items available from the Wapato Primary Media Center and suggested activities which will help to integrate the science unit with other subject areas. The Intent of the curriculum design ls that children learn language and science naturally when they are developed in a meaningful context