Auth0 Token Vault handles secure token storage, exchange, and refresh for external providers so you don't have to build it yourself.
Rolling your own OAuth token storage can be a security liability. Token Vault securely stores access and refresh tokens from federated providers and handles exchange and renewal automatically. Connected accounts, refresh exchange, and privileged worker flows included.
Try Auth0 for Free
Secure File Transfer for Windows with Cerberus by Redwood
Protect and share files over FTP/S, SFTP, HTTPS and SCP with the #1 rated Windows file transfer server.
Cerberus supports unlimited users and connections on a single IP, with built-in encryption, 2FA, and a browser-based web client — all deployable in under 15 minutes with a 25-day free trial.
Database Replication, Filtered Synchronization, and Transformation
SymmetricDS is database replication and file synchronization software. It is a platform-independent, web-enabled, and database-agnostic synchronization tool. With initial data load, bidirectional change data capture, conflict resolution, and data transformation, it is a comprehensive data replication solution.
Pure Java NTP server.
Run as root/admin in cmd-mode without cmd argument, for example:
java -jar pj-ntp-server.jar (server start on standart UDP/123-port)
or run as root/admin in cmd-mode with UDP-port cmd argument, for example:
java -jar pj-ntp-server.jar 1111
where 1111=udp-port of server listen.
Need JRE-1.8. Source = https://github.com/harp077/pj-ntp-server
If you like this - put a star on https://github.com/harp077/pj-ntp-server/ for support project please.
A file synchronization/backup utility. Designed to synchronize two folders. It can be used as a backup by synchronizing to a backup source. You can synchronize multiple computers to the same storage source. Includes FTP, SFTP and FTPS support.
A Java library, webservice and webclient for harvesting metadata. It currently supports harvesting from OAI-PMH to Fedora 2, but can easily be extended to support more protocols.
CalDAV sync for Android
----
Stopped working on it. Doesn't make any sense to spend more time on it; I recommend e.g. DAVdroid as an opensource and ready-to-use solution on clientside.
----
For code look at:
https://github.com/e7o-de/android.caldav
Web Integrator is a Multiplatform web based Integration/replication solution with support for multiple data sources. Web Integrator allows connecting of diverse data sources/consumers located on different platforms and remote locations.