irvingpop

# ssh key generator data source expects the below 3 inputs, and produces 3 outputs for use:
#  "${data.external.ssh_key_generator.result.public_key}" (contents)
#  "${data.external.ssh_key_generator.result.private_key}" (contents)
#  "${data.external.ssh_key_generator.result.private_key_file}" (path)
data "external" "ssh_key_generator" {
  program = ["bash", "${path.root}/../ssh_key_generator.sh"]

  query = {
    customer_name = "${var.customer_name}"
    customer_group = "${var.customer_group}"

spinpx

TCP Reset attack

RESET is a flag in TCP packets to indicate that the conection is not longer working. So, if any of the two participants in a TCP connection send a packet contains such a RESET flag, the connection will be closed immediately.

Thus it can be use to attack TCP connections once the attacker can forge TCP packets from any of the two parties if he or she know their IPs, ports and the sequence number of current TCP connection.

The attack can be used to make certain users to fail to use certain network services based on TCP if we know the information above.

In practice, we should eavesdrop the victims’ communications to get their IPs, ports and the sequence number. You can do it by:

Raimondi

# comments example for .dat or .ledger files
@smallexample
; This is a single line comment,
# and this,
% and this,
| and this,
* and this.

# If you have a deeply nested tree of accounts, 
# it may be convenient to define an alias, for example:

mterwill

Note: everything here is pretty specific to my usage/accounts and not written for public use... You'll probably have to tweak a bunch of stuff.

$ bean-extract config.py ~/Downloads # the csvs should be in here

zarzen

from scapy.all import *

def main():
    """
    """
    packet = IP(dst="192.168.100.123")/TCP()/"from scapy packet"
    send(packet)


def packet_with_seq_n():

darnir

# for background in 16 color terminal, valid background colors include:
# base03, bg, black, any of the non brights

# style notes:
# when bg=235, that's a highlighted message
# normal bg=233

# basic colors ---------------------------------------------------------
# color normal        brightyellow    default
color error         color196        color235                        # message line error text

miglen

List of Linux networking tools

netstat (ss)

Displays contents of /proc/net files. It works with the Linux Network Subsystem, it will tell you what the status of ports are ie. open, closed, waiting, masquerade connections. It will also display various other things. It has many different options. Netstat (Network Statistic) command display connection info, routing table information etc. To displays routing table information use option as -r.

Sample output:

Proto Recv-Q Send-Q  Local Address          Foreign Address        (state)    
tcp4 0 0 127.0.0.1.62132 127.0.0.1.http ESTABLISHED

kylemanna

Install ARCH Linux with encrypted file-system and UEFI

The official installation guide (https://wiki.archlinux.org/index.php/Installation_Guide) contains a more verbose description.

Download the Arch ISO

• Image from https://www.archlinux.org/

Copy to a USB drive

kevin-smets

Requirements

Minikube requires that VT-x/AMD-v virtualization is enabled in BIOS. To check that this is enabled on OSX / macOS run:

sysctl -a | grep machdep.cpu.features | grep VMX

If there's output, you're good!

Prerequisites

Rich-Harris

Edit — February 2019

This gist had a far larger impact than I imagined it would, and apparently people are still finding it, so a quick update:

• TC39 is currently moving forward with a slightly different version of TLA, referred to as 'variant B', in which a module with TLA doesn't block sibling execution. This vastly reduces the danger of parallelizable work happening in serial and thereby delaying startup, which was the concern that motivated me to write this gist
• In the wild, we're seeing (async main(){...}()) as a substitute for TLA. This completely eliminates the blocking problem (yay!) but it's less powerful, and harder to statically analyse (boo). In other words the lack of TLA is causing real problems
• Therefore, a version of TLA that solves the original issue is a valuable addition to the language, and I'm in full support of the current proposal, which you can read here.

I'll leave the rest of this document unedited, for archaeological