prydin

<#
.SYNOPSIS
    Creates PTR records in reverse lookup zones for every A record in a forward zone.

.DESCRIPTION
    Reads all A records from the forward zone (default: vcf.lab), finds the most
    specific matching reverse lookup zone for each IP address, and adds a PTR record
    pointing back to the host's FQDN.

    - Existing PTR records that already point to the correct host are skipped.

prydin

"""
Simple example: authenticate to VCFA (VMware Cloud Foundation Automation) 9.1
and list the VM App blueprints in a project.

Fill in the constants below and run: python list_blueprints.py
"""

import requests

# --- Configuration ---

prydin

`timescale 1ns / 1ps

module sig_mag_cell(
    input  [3:0] in,
    output [3:0] out,
    input  sign,
    input  cin,
    output cout
);

prydin

Configure a Private Registry on a VCF Operations Collector/Cloud Proxy for the vCommunity Management Pack for Disconnected Sites

Adapted from an original by Sean Cummins

The VCF Operations Coommunuty Management pack adds lots of useful new metrics to VCF Operations. This Management Pack was created using the VCF Operations SDK, which relies on Docker. Typically, the Collectors would contact a public registry to pull the images, but this doesn't work in air-gapped high-security sites. This document discusses a workaround.

Preparing the images

prydin

import numpy as np
import scipy.signal as signal
from matplotlib import pyplot as plt

def gen_sine(fs, f, periods):
    n = int(fs*(periods/f))
    t = np.linspace(start=0, stop=periods/f, num=n)
    return t, np.sin(t*f*2*np.pi)

def upsample(t, x, ratio):

prydin

Version 4
SHEET 1 1992 864
WIRE -1936 -1360 -2064 -1360
WIRE -1520 -1360 -1936 -1360
WIRE -1200 -1360 -1520 -1360
WIRE -976 -1360 -1200 -1360
WIRE -480 -1360 -976 -1360
WIRE -400 -1360 -480 -1360
WIRE 64 -1360 -400 -1360
WIRE 432 -1360 64 -1360

prydin

import numpy as np

noise_db = -80  # Noise added by each amplifier
gain_db = 60    # Closed loop gain

cycles = 2
resolution = 1000
length = np.pi * 2 * cycles
signal = np.sin(np.arange(0, length, length / resolution))
raw_noise = 10**(noise_db / 20)

prydin

`timescale 1ns / 1ps
//////////////////////////////////////////////////////////////////////////////////
// Company: 
// Engineer: 
// 
// Create Date: 12/17/2024 08:29:18 AM
// Design Name: 
// Module Name: main
// Project Name: 
// Target Devices: 

prydin

Version 4
SHEET 1 5264 1236
WIRE 272 -80 272 -112
WIRE 1600 -80 1600 -112
WIRE -496 -64 -496 -144
WIRE 208 -32 128 -32
WIRE 1536 -32 1456 -32
WIRE 128 16 128 -32
WIRE 272 32 272 16
WIRE 1600 32 1600 16

prydin

Version 4
SHEET 1 880 680
WIRE -448 -80 -560 -80
WIRE -416 -80 -448 -80
WIRE -320 -80 -336 -80
WIRE 96 -80 -320 -80
WIRE -560 -48 -560 -80
WIRE -320 -32 -320 -80
WIRE -576 48 -576 32
WIRE -560 80 -560 32