[Image](/uploads/documents/5/7/c/4/57c452da15658819e9898bc9e882370f/p1_1.jpg) # Firebird File and Metadata Security Geoff Worboys Version 0.6, 30 June 2020 ## Table of Contents 1. Introduction ..... 2 This article discusses the security of Firebird database files and in particular access to the metadata stored in those files. It has been written in response to frequent questions on the Firebird lists access to a database file there is no effective way to prevent that user from reading all data (and metadata) within that file. 

Summary • What is reflection? • Why? • Implementing runtime reflection ## What is reflection • Metadata of code • "What members do I have?" struct Entity { int health; std::string tag;

[Image](/uploads/documents/7/a/1/3/7a13352ace9d0e5a9426be5dcc3ed48e/p1_1.jpg) CurveBS uses the central node Metadata Server (MDS) to manage virtual disk mapping and data replicas distribution. Decentralization currently particularly strong in most cases. The CurveBS core consists of three parts: ### 1. Metadata Server (MDS) - Manages and stores metadata information and persists the data in ETCD ☑ Collect cluster status and schedule interfaces for upper-layer applications ● Interacts with MDS to add, delete, modify, and query metadata ● Interacts with the chunkServer to read and write data ### 4. Snapshotcloneserver ● Independent

opencurve.io/ ## Agenda • CurveBS Architecture • CurveBS Topology • CurveBS Data Organization • MetaData Server (MDS) • ChunkServer • Client • CurveBS IO processing flow • CurveBS Performance considerations failure domain  ## MetaData Server(MDS) ## MDS Master Heartbeat Scheduler TopoUpdatet CopySet Scheduler ConfGenerator Scheduler Recover Scheduler Topology NameServer MDS Slave1 Etcd Cluster (RAFT consensus) Metadata store MDS Master select ## ChunkServer Clients MDS Peers BRPC RAFT Service RAFT Service

extensions plugins 12 2.14 Package immutability optimizations 12 2.15 Package lists 13 2.16 Metadata files 13 2.17 Third party backup sources 13 2.18 Installing configuration from Conan packages Index Repository 146 5.3 Backing up third-party sources with Conan 150 5.4 Managing package metadata files 155 5.5 Versioning 162 5.6 Save and restore packages from/to the cache 163 6 Integrations • Read the example usages • Package lists blog post ### 2.16 Metadata files Conan 2 allows to store, upload, download, modify metadata files associated to recipes and packages. This feature can be very

EXAMPLES { "cell_type": "markdown", "metadata": { }, "source": [ ], { "cell_type": "markdown", "metadata": {}, "source": [ “The Jupyter Notebook [MathJax](https://www.mathjax.org/).” ], }, { "cell_type": "markdown", "metadata": { "slideshow": { "slide_type": "slide" understand that ”kernels run code.” }, { "cell_type": "markdown", "metadata": { "slideshow": { "slide_type": "slide"

EXAMPLES { "cell_type": "markdown", "metadata": { }, "source": [ ], { "cell_type": "markdown", "metadata": {}, "source": [ “The Jupyter Notebook by [MathJax](https://www.mathjax.org/).” ], { "cell_type": "markdown", "metadata": { "slideshow": { "slide_type": "slide" } }, "source": understand that ”kernels run code.” }, { "cell_type": "markdown", "metadata": { "slideshow": { "slide_type": "slide"