Soenneker.Utils.Network 4.0.1228

Prefix Reserved

dotnet add package Soenneker.Utils.Network --version 4.0.1228

NuGet\Install-Package Soenneker.Utils.Network -Version 4.0.1228

This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package.

<PackageReference Include="Soenneker.Utils.Network" Version="4.0.1228" />

For projects that support PackageReference, copy this XML node into the project file to reference the package.

<PackageVersion Include="Soenneker.Utils.Network" Version="4.0.1228" />
                    

                            Directory.Packages.props

<PackageReference Include="Soenneker.Utils.Network" />
                    

                            Project file

For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package.

paket add Soenneker.Utils.Network --version 4.0.1228

The NuGet Team does not provide support for this client. Please contact its maintainers for support.

#r "nuget: Soenneker.Utils.Network, 4.0.1228"

#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package.

#:package Soenneker.Utils.Network@4.0.1228

#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package.

#addin nuget:?package=Soenneker.Utils.Network&version=4.0.1228
                    

                            Install as a Cake Addin

#tool nuget:?package=Soenneker.Utils.Network&version=4.0.1228
                    

                            Install as a Cake Tool

The NuGet Team does not provide support for this client. Please contact its maintainers for support.

Soenneker.Utils.Network

Checks active local TCP listeners and asks the operating system for an available loopback port candidate.

Installation

dotnet add package Soenneker.Utils.Network

Quick start

using Soenneker.Utils.Network.Registrars;

services.AddNetworkUtilAsSingleton();

Then inject INetworkUtil wherever you need it.

Common operations

if (networkUtil.IsPortBusy(5000))
{
    // A local TCP listener was present in the snapshot.
}

int candidatePort = networkUtil.GetFreePort();

IsPortBusy compares the requested number with the operating system's active TCP listener snapshot. It does not test UDP, remote hosts, firewall reachability, or whether the current process can bind a particular address. The result can change immediately after the call.

GetFreePort asks the operating system to bind port zero on IPv4 loopback, reads the assigned port, then closes the listener before returning. The returned number is therefore a candidate, not a reservation: another thread or process can claim it before the caller binds. For reliable server startup, bind port zero on the actual server listener and keep that listener open instead of using a check-then-bind sequence.

Both methods can surface socket or operating-system errors. The utility contains no mutable network state, so scoped and singleton registration are both available; choose the lifetime needed by its consumers.

Product	Compatible and additional computed target framework versions.
.NET	net10.0 is compatible. net10.0-android was computed. net10.0-browser was computed. net10.0-ios was computed. net10.0-maccatalyst was computed. net10.0-macos was computed. net10.0-tvos was computed. net10.0-windows was computed.

Compatible target framework(s)

Included target framework(s) (in package)

Learn more about Target Frameworks and .NET Standard.

net10.0
- Soenneker.Extensions.Enumerable (>= 4.0.658)

NuGet packages (1)

Showing the top 1 NuGet packages that depend on Soenneker.Utils.Network:

Package	Downloads
Soenneker.Playwrights.TestEnvironment A test environment for testing with Playwright	24.9K

GitHub repositories

This package is not used by any popular GitHub repositories.

Version	Downloads	Last Updated
4.0.1228	631	8/31/2026
4.0.1227	87	8/31/2026
4.0.1226	76	8/30/2026
4.0.1225	79	8/30/2026
4.0.1224	79	8/30/2026
4.0.1223	82	8/30/2026
4.0.1222	74	8/30/2026
4.0.1221	74	8/29/2026
4.0.1220	91	8/29/2026
4.0.1219	84	8/29/2026
4.0.1218	79	8/29/2026
4.0.1217	583	8/26/2026
4.0.1216	131	8/25/2026
4.0.1215	960	8/12/2026
4.0.1214	1,202	7/28/2026
4.0.1213	115	7/28/2026
4.0.1212	99	7/28/2026
4.0.1211	843	7/18/2026
4.0.1210	302	7/16/2026
4.0.1209	107	7/16/2026

Clarify network operations