mvenditto

VirtualBox create host-only interface and attach

A host-only network interface is created virtually in software which appears to the host system.

This interface can be attached to one or more VMs, allowing connectivity between those VMs and communication between the host system and VMs.

• Create & attach interface
• Configure Ubuntu guests
  • Ubuntu 18.04+
  • Ubuntu pre 18.04

mvenditto

A simple overview of Zig's std.log for Zig v0.12.0 or higher

Logging functionality that supports:

• If a log message should be printed is determined at comptime, meaning zero overhead for unprinted messages (so just leave the code peppered with debug logs, but when it makes sense scope them; so downstream users can filter them out)
• Scoped log messages
• Different log levels per scope
• Overrideable log output (write to file, database, etc.)
• All the standard std.fmt formatting magic

Basic Usage:

mvenditto

// This shows how to change Kestrel's bindings programmatically through the IConfiguraiton abstraction.
// TFM: .NET 5.0

using Microsoft.AspNetCore.Hosting;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.Hosting;
using System;
using System.Threading;

namespace WebApplication85

mvenditto

#!/usr/bin/env bash

# Creates a 100Mb file send via SSH and test the transfer speed
perl -e 'print "\0" x 100000000' > test.txt && du -sh test.txt

# get a list of available ciphers on your machine
CIPHERS="$(ssh -Q cipher)"

for cipher in $CIPHERS; do
  echo "$cipher"

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#!usr/bin/python3
# -*- coding: utf-8 -*-

import sys
from datetime import date

from napalm import get_network_driver
from napalm.base.exceptions import ConnectionException
from paramiko.ssh_exception import SSHException
from rich import print

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COR_PRF_MONITOR where:

• i - COR_PRF_MONITOR_IMMUTABLE (0xEEF8CC00)
• a - COR_PRF_ALLOWABLE_AFTER_ATTACH (0x100502FE)
• n - COR_PRF_ALLOWABLE_NOTIFICATION_PROFILER (0xB1E32B7F)

 0 ..n COR_PRF_MONITOR_FUNCTION_UNLOADS
 1 .an COR_PRF_MONITOR_CLASS_LOADS
 2 .an COR_PRF_MONITOR_MODULE_LOADS
 3 .an COR_PRF_MONITOR_ASSEMBLY_LOADS
 4 .an COR_PRF_MONITOR_APPDOMAIN_LOADS

mvenditto

using Cysharp.Collections; // dotnet add package NativeMemoryArray

namespace BufferAllocExample;

public static class ExampleBufferedBytesProcessor
{
    public static int ProcessBytes(IUtf8Processor processor, ReadOnlySpan<char> source, Span<byte> destination)
    {
        const int StackAllocLimit = 1024; // 1KB
        const int ArrayPoolLimit = 1024 * 1024 * 10; // 10MB 

mvenditto

using System;
using System.IO.MemoryMappedFiles;
using MemoryMappingTools;

namespace MemoryMappingTools
{
    // We use a static modifier so the compiler will accept our ReadString extension method.
    unsafe static class MemoryMappedBinaryReader
    {
        /// <summary>

mvenditto

Name	Hex	Decimal
E_UNEXPECTED	0x8000FFFF	-2147418113
E_NOTIMPL	0x80004001	-2147467263
E_OUTOFMEMORY	0x8007000E	-2147024882
E_INVALIDARG	0x80070057	-2147024809
E_NOINTERFACE	0x80004002	-2147467262
E_POINTER	0x80004003	-2147467261
E_HANDLE	0x80070006	-2147024890
E_ABORT	0x80004004	-2147467260
E_FAIL	0x80004005	-2147467259

mvenditto

using System;
using System.ComponentModel;
using System.Runtime.InteropServices;

namespace ComWithoutRegisteringExample
{
	internal static class ComHelper
	{
		private delegate int DllGetClassObject(ref Guid clsid, ref Guid iid, [Out, MarshalAs(UnmanagedType.Interface)] out IClassFactory classFactory);