lggomez

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tcpdump -s 0 #capture entire etherner header and IP packet

tcpdump -ni tap55ec3c7f-91 ip6 #locate the ICMPv6 packets

tcpdump -s0 -n -i any -w /tmp/$(hostname)-smbtrace.pcap #if the SMB client or SMB server is a Unix host,Troubleshooting Server Message Block (SMB)

tcpdump -D #Print the list of the network interfaces available on the system and on which tcpdump can capture packet
tcpdump -X -vvv -n -i eth0

lggomez

var newLine = []byte("\n")[0]
var goPathPrefix = "\t/go/src/"
var goUsersPrefix = "\t/Users/"

func dumpStacktrace(skipLines int) []byte {
	stack := debug.Stack()
	init, lines := 0, 0

	// First pass: seek stack start skiping lines if necessary
	if skipLines > 0 {

lggomez

# Run tests for package in current location
go test -run=. -bench=. -benchtime=5s -count 5 -benchmem -cpuprofile=cpu.out -memprofile=mem.out -trace=trace.out ./ | tee bench.txt
go tool pprof -http :8080 cpu.out
go tool pprof -http :8081 mem.out
go tool trace trace.out

go tool pprof $FILENAME.test cpu.out
# (pprof) list <func name>

# go get -u golang.org/x/perf/cmd/benchstat

lggomez

# Install tzdata (used by golang timezones) along with other base & useful commands
RUN INSTALL_PKGS="wget diffutils net-tools bind-utils iproute nmap procps-ng vim-enhanced nano less libidn git gcc tzdata libaio make tzdata git" && \
    dnf install https://dl.fedoraproject.org/pub/epel/epel-release-latest-8.noarch.rpm -y && \
    dnf install -y --setopt=tsflags=nodocs $INSTALL_PKGS && \
    dnf update -y && \
    dnf clean all -y && \
    rm -rf /var/cache/dnf/*

# Install Oracle Instant Client, SQLPlus and GCC for golang interop
ARG OIC_RELEASE=19

lggomez

echo "** running formatters"
goimports -e -w -local my.domain.corp $(find . -type f -name '*.go' -not -path "./vendor/*")

# use gofumpt if available, see https://github.com/mvdan/gofumpt
if ! command -v gofumpt -version &> /dev/null
then
    echo "gofumpt could not be found, defaulting to gofmt"
    gofmt -s -w $(find . -type f -name '*.go' -not -path "./vendor/*")
else
    echo "gofumpt found, executing as formatter"

lggomez

#!/usr/bin/env bash
echo $BASH_VERSION

# GVM readme: https://github.com/e-nikolov/gvm/blob/master/README.md

bash < <(curl -s -S -L https://raw.githubusercontent.com/e-nikolov/gvm/master/binscripts/gvm-installer)
source $HOME/.gvm/scripts/gvm

# To view available versions to install run 'gvm listall' later on
# Older versions you'll probably not need

lggomez

__author__ = "lggomez"
__copyright__ = "Copyright 2017"
__credits__ = ["Luis Gomez"]
__license__ = "MIT"
__version__ = "0.3"
__maintainer__ = "lggomez"
__status__ = "Production"

import argparse
import os

lggomez

    public class MyStack<T>
    {
        readonly int m_Size;

        readonly T[] m_Items;

        int m_StackPointer = 0;

        public MyStack(int size)
        {

lggomez

private static List<MethodInfo> GetTypeMethods<T>()
{
	List<MethodInfo> interfaceMethods = new List<MethodInfo>();
	var targetType = typeof(T);

	foreach (MethodInfo method in targetType.GetMethods() )
	{
		if (!method.IsSpecialName &&
				!new List<string> { "tostring", "gethashcode", "equals", "gettype", "finalize", "memberwiseclone" }.Any(method.Name.ToLowerInvariant().Contains))
		{

lggomez

using System;
using System.Collections.Generic;
using System.Linq;
using System.Reflection;
using System.Runtime.CompilerServices;
using System.Runtime.Remoting;
using Bootstrapper.IoC.Behaviors;
using Microsoft.Practices.Unity;
using Microsoft.Practices.Unity.InterceptionExtension;