Description
Type: oral presentations, 20 minutes + 5 minutes QA
This is a classic CS3 session to present technology, design, experimentation and research results relevant for development and operation of synchronization and sharing services. The topics include:
- algorithms and protocols for file sync and sharing
- sharing and metadata semantics
- data integrity, reliability
- conflict resolution
- network-aware design
- software QA hardening and resilience
- desktop and mobile integration
- backup strategies
- monitoring tools
- testing frameworks
- security frameworks and procedures
- new user interfaces
Rocket is the first attempt at handling one of the particular problems that other tools have failed to solve. This presentation will demonstrate AARNet’s experiences and tools used high-speed data transfers of different kinds of research data.
The research community in Australia is spread far and wide geographically, resulting in some cases to be physically far from one of our three...
Microservices are an approach to distributed systems that promote the use of finely grained services with their own lifecycles, which collaborate. The use of microservices facilitates embracing new technologies and architectural patterns. Sync and share providers could increase the modularity and facilitating the exchange of components and best practices adopting the use of microservices.
In...
Container technologies are rapidly becoming the preferred way to distribute, deploy, and run services by developers and system administrators. They provide the means to create a light-weight virtualization environment, i.e., a container, which is cheap to create, manage, and destroy, requires a negligible amount of time to set-up, and provides performance equatable with the one of the...
There is growing interest for self-hosted, scalable, fully controlled and secure file sync and share solutions among enterprises. The ownCloud has found its share as free-to-use, open-source solution, which can scale on-premise from a single commodity class server to a cluster of enterprise class machines, and serve from one to thousands of users and PB of data. Over the years, it has grown a...
Over the past year we dropped the requirement that ownCloud should run on every PHP platform. This allows us to research architectural changes, like push notifications, microservices, dockerized deployments, HSM integration and storing metadata in POSIX or object storages. On the client side we are exploring E2EE, virtual filesystems and delta sync. Together with feedback from our community...
The talk will introduce the main concepts of Shibboleth, advantages and disadvantages and show the integration of Shibboleth with a Sync and Share service (webapp with own session handling, not designed for using the Shibboleth session as webapp session) with Seafile as an example.
Furthermore it will discuss the problems of Shibboleth federations and possible mitigations.
A special focus will...
The typical Nextcloud setup for large installations includes a storage and a database cluster attached to multiple application servers behind a load balancer. This allows organisations to scale Nextcloud for thousands of users. But at some point the shared components like the storage, database and load balancer become a expensive bottleneck. Therefore Nextcloud introduced "Global Scale", a new...
Managing the database where you store your application data is always an
interesting challenge. As the scale of your service grows, so does the
challenge of keeping a healthy database service. However with just a few tools
and techniques it is possible to implement some serious performance
improvements with just a little bit of effort. Using the performance tools
included with MariaDB, at...
Nextcloud can be scaled from very small to very big installations. This talk gives an insiders look on how to deploy, run and scale Nextcloud in different scenarios. Discussed will be a very big installation in the research space, an installation in a global enterprise and the implementation of Nextcloud at one of the largest service providers in the world. The different infrastructural...
This talk covers a journey through fuzz-testing CERN's EOS file system with AFL, from compiling EOS with afl-gcc/afl-g++, to learning to use AFL, and finally, making sense of the results obtained.
Fuzzing is a software testing process that aims to find bugs, and subsequently potential security vulnerabilities, by attempting to trigger unexpected behaviour with random inputs. It is particularly...
We started looking at the site reports of CS3 with the goal of designing a large OwnCloud/Nextcloud solution. We learned that the main product used for sync and share is Nextcloud/Owncloud and looking at that large user base implementations, saw that most are implementations are large monolithic installs. The site reports also showed that these large installs have some weaknesses like scaling...
