rjhansen

SKS Keyserver Network Under Attack

This work is released under a Creative Commons Attribution-NoDerivatives 4.0 International License.

Terminological Note

"OpenPGP" refers to the OpenPGP protocol, in much the same way that HTML refers to the protocol that specifies how to write a web page. "GnuPG", "SequoiaPGP", "OpenPGP.js", and others are implementations of the OpenPGP protocol in the same way that Mozilla Firefox, Google Chromium, and Microsoft Edge refer to software packages that process HTML data.

Who am I?

avafloww

/*<?php
//*/public class PhpJava { public static void main(String[] args) { System.out.printf("/*%s",
//\u000A\u002F\u002A
class PhpJava {
    static function main() {
        echo(//\u000A\u002A\u002F
        "Hello World!");
}}
//\u000A\u002F\u002A
PhpJava::main();

narutaro

Comparing NetFlow generators

Sharing my hands-on experience on some of the free NetFlow generators. I use Paessler NetFlow Generator for quick test, Flowalyzer™ NetFlow Generator for complicated flow creation and flowgen for automated performance testing.

Paessler NetFlow Generator

Screenshot:

Pros:

cben

[attaching this to a CloudFlare survey why I left them (for DNSimple)]

I was a free user using CloudFlare only for DNS, chiefly because it can simulate CNAME at an apex domain. The apex domains mathdown.net,mathdown.com point to mathdown-cben.rhcloud.com. Cloudflare "CNAME-flattening" nicely returns an A record; unfortunately it's served with a huge TTL of 7 days(!), which causes a long outage when the underlying IP changes.

I asked support how I can lower the TTL (BTW it's great that you provide free support at all) and was told [https://support.cloudflare.com/hc/en-us/requests/522551, emphasis mine]:

This is based on the TTL of your authoritative provider for mathdown-cben.rhcloud.com:

evgenypim

#!/bin/bash
 
INTERVAL="1"  # update interval in seconds
 
if [ -z "$1" ]; then
        echo
        echo usage: $0 [network-interface]
        echo
        echo e.g. $0 eth0
        echo

lukego

This is a simple example of a low-level script that uses the Snabb Switch 82599 10G ethernet device driver directly to feed packets into a C function provided as a shared library. Written for a discussion with Pavel Odintsov.

Here is now to run it:

1. Compile snabbswitch to get snabb executable.
2. Compile a C callback function to a shared library e.g. capturecallback.c below.
3. Run: sudo ./snabb snsh capture2c <pciaddress> <filename.so>

The output should look something like this:

benagricola

#!/usr/bin/env tarantool
local pickle = require('pickle')

local denumerate = function(num)
    local bin = ''
    while num > 0 do
        local char = num % 256
        num = num - char
        num = num / 256
        bin = string.char(char) .. bin

jpillora

// A small SSH daemon providing bash sessions
//
// Server:
// cd my/new/dir/
// #generate server keypair
// ssh-keygen -t rsa
// go get -v .
// go run sshd.go
//
// Client:

falzm

package main

import "fmt"
import "time"

func main() {
	commonlogDateFormat := "2/Jan/2006:15:04:05 -0700"
	iso8601DateFormat := "2006-01-02T15:04:05-07:00"

	parsedDate, err := time.Parse(commonlogDateFormat, "18/Oct/2014:08:53:14 +0200")

hiroyuki-sato

Overview

Build VyOS image image on Debian Jessie environment.

Install Debian jessie

Install Debian jessie.

• Jessie ISO