Top 20 NuGet server Packages

JsonRpc 2.0 Server for .NET
A fast TCP event based buffered server/client protocol for transferring data over the network in .NET Core/Classic
A package for hosting an FTP server, with authenticating and file managing customizable. Go to project site for usage example or executable version.
An implementation of SMTP (Simple Mail Transfer Protocol) conversation to build SMTP service.
Library for parsing and serializing DNS messages. Includes a basic DNS client and server.
Maple is an ultra-lightweight RESTful web server built specifically for network enabled Netduino devices. It's fully .NET MicroFramework 4.3 compatible and provides an easy to extend architecture.
Data Access Layer for SQL Server over EntityFrameworkCore for MicroNetCore.
Provides powerful data access components to WebAPI server featuring OData 4 extended implementation, view projection technology, two-way data synchronization and seamless integration with Entity Framework. For the client counterpart, please install Intersoft.AppFramework package.
A fluent networking library build on top of lidgren network.
This package is executable .NET Core DLL, which runs the HTTP server of Backend.HTTP.Server package. Graceful shutdown and restart are supported via semaphores, as implemented by UtilPack.ProcessMonitor package.
Contains skeleton implementation for types defined in Backend.Core and Backend.HTTP.Common packages.
Contains module implementing generic logout procedore for backend HTTP servers.
The library containing class implementing LoginProvider interface of Backend.HTTP.Common.Login package. Handles authentication over LDAP connection.
Contains class implementing Authenticator interface from Backend.HTTP.Common package, which operates based on HTTP headers. The authentication token is read from and written to configurable HTTP header.
Library containing code related to initialization of backend process, which involves dynamic (NuGet) assembly loading.
Webster - A tiny .net core websocket server
WebApi component which adds functionality for automatic server side processing for the famous table plugin for jQuery - DataTables. Supports paging, searching, sorting and custom filters (Less Than, Less than or equal, Greater than, Greater than or equal and Equal) and nested objects.