fredbourni

import boto3

regions = frozenset([
    'us-east-1',
    'us-east-2',
    'us-west-1',
    'us-west-2',
    'eu-central-1',
    'eu-west-1',
    'eu-west-2',

pathcl

git config --global url."https://github.com/".insteadOf git@github.com:
git config --global url."https://".insteadOf git://

nimbupani

---
layout: default
---

<div class="blog-index">  
  {% assign post = site.posts.first %}
  {% assign content = post.content %}
  {% include post_detail.html %}
</div>

reiki4040

package main

import (
	"fmt"
	"os"
	"os/signal"
	"syscall"
)

func main() {

var23rav

import (
  "fmt"
  "io"
  "os"
)

/*
   GoLang: os.Rename() give error "invalid cross-device link" for Docker container with Volumes.
   MoveFile(source, destination) will work moving file between folders
*/

adulau

How to acquire memory from a running Linux system

Dumping memory on Linux system can be cumbersome especially that the behavior might be different among different GNU/Linux distribution or Linux kernel version. In the early days, the easiest was to dump the memory from the memory device (/dev/mem) but over time the access was more and more restricted in order to avoid malicious process to directly access the kernel memory directly. The kernel option CONFIG_STRICT_DEVMEM was introduced in kernel version 2.6 and upper (2.6.36–2.6.39, 3.0–3.8, 3.8+HEAD). So you'll need to use a Linux kernel module in order to acquire memory.

fmem

tpryan

BASEDIR = $(shell pwd)
RULELIST = $(shell gcloud compute forwarding-rules list --format='value[terminator=" "](name)')
include Makefile.properties

all: cluster app

app: db api frontend 

# Requests a GKE cluster
cluster: 

0xKayvan

sudo gitlab-rails console
ApplicationSetting.last.update_attributes(signin_enabled: true)
exit
sudo gitlab-ctl restart

rushilgupta

INTRO

Concurrency is a domain I have wanted to explore for a long time because the locks and the race conditions have always intimidated me. I recall somebody suggesting concurrency patterns in golang because they said "you share the data and not the variables".

Amused by that, I searched for "concurrency in golang" and bumped into this awesome slide by Rob Pike: https://talks.golang.org/2012/waza.slide#1 which does a great job of explaining channels, concurrency patterns and a mini-architecture of load-balancer (also explains the above one-liner).

Let's dig in:

Goroutines

rain-1

WannaCry|WannaDecrypt0r NSA-Cyberweapon-Powered Ransomware Worm

• Virus Name: WannaCrypt, WannaCry, WanaCrypt0r, WCrypt, WCRY
• Vector: All Windows versions before Windows 10 are vulnerable if not patched for MS-17-010. It uses EternalBlue MS17-010 to propagate.
• Ransom: between $300 to $600. There is code to 'rm' (delete) files in the virus. Seems to reset if the virus crashes.
• Backdooring: The worm loops through every RDP session on a system to run the ransomware as that user. It also installs the DOUBLEPULSAR backdoor. It corrupts shadow volumes to make recovery harder. (source: malwarebytes)
• Kill switch: If the website www.iuqerfsodp9ifjaposdfjhgosurijfaewrwergwea.com is up the virus exits instead of infecting the host. (source: malwarebytes). This domain has been sinkholed, stopping the spread of the worm. Will not work if proxied (source).

update: A minor variant of the viru