jvehent’s gists

jvehent / gist:4751342

Last active December 12, 2015 09:28

	julienv@nux:~$ mkdir -p non/executable/dir
	julienv@nux:~$ echo 'uptime' > non/executable/dir/script.sh
	julienv@nux:~$ chmod +x non/executable/dir/script.sh
	julienv@nux:~$ chmod -x non/executable/dir
	julienv@nux:~$ chmod -x non/executable
	julienv@nux:~$ chmod -x non
	julienv@nux:~$ bash non/executable/dir/script.sh
	bash: non/executable/dir/script.sh: Permission denied
	julienv@nux:~$ chmod +x non/ -R
	julienv@nux:~$ bash non/executable/dir/script.sh

jvehent / gist:4757514

Created February 11, 2013 20:52

	$ tree afw
	afw
	├── attributes
	│ └── default.rb
	├── files
	│ └── default
	│ ├── empty.iptables
	│ ├── initd-firewall
	│ └── upstart-firewall.conf
	├── libraries

jvehent / gist:5221185

Created March 22, 2013 13:19

On the client VM:

chef > r = search(:node, "role:keymaster AND chef_environment:vagrant")
 => [] 

chef > r = search(:node, "role:keymaster")
 => [node[keymaster.local.vm]] 

chef &gt; print node.chef_environment

jvehent / gist:5398670

Created April 16, 2013 19:08

	$ dig +short mx cs.drexel.edu
	10 mail.cs.drexel.edu.

	$ dig +short mail.cs.drexel.edu
	129.25.8.238

	$ nc 129.25.8.238 25
	(UNKNOWN) [129.25.8.238] 25 (smtp) : Connection timed out

jvehent / gist:5558963

Created May 11, 2013 05:03

LTE pings from PHL airport

	$ cat ping-phl-tmobile-lte.txt
	$ ping www.google.com
	PING www.google.com (173.194.75.106) 56(84) bytes of data.
	64 bytes from ve-in-f106.1e100.net (173.194.75.106): icmp_seq=1 ttl=42 time=3022 ms
	64 bytes from ve-in-f106.1e100.net (173.194.75.106): icmp_seq=2 ttl=42 time=5542 ms
	64 bytes from ve-in-f106.1e100.net (173.194.75.106): icmp_seq=3 ttl=42 time=4544 ms
	64 bytes from ve-in-f106.1e100.net (173.194.75.106): icmp_seq=4 ttl=42 time=3623 ms
	64 bytes from ve-in-f106.1e100.net (173.194.75.106): icmp_seq=5 ttl=42 time=1324 ms
	64 bytes from ve-in-f106.1e100.net (173.194.75.106): icmp_seq=6 ttl=42 time=324 ms
	64 bytes from ve-in-f106.1e100.net (173.194.75.106): icmp_seq=7 ttl=42 time=913 ms

jvehent / md5dir.go

Created July 12, 2013 00:44

	/* Get all the MD5 from a dir
	jvehent - ulfr - 2013
	example:
	$ go run md5dir.go /home/ulfr/Code/
	using path'/home/ulfr/Code/'
	2204ab698668813742535320d6b11692 /home/ulfr/Code//md5dir.go
	fbca743b51a503ced1aa29d3933123c7 /home/ulfr/Code//john-1.7.9-jumbo-7.tar.gz

	*/
	package main

jvehent / gist:6021332

Created July 17, 2013 14:57

	$ ./CiphersScan.sh www.aweber.com:443
	Testing 135 ciphersuites
	ADH-AES128-GCM-SHA256 (Failed)
	ADH-AES128-SHA (Failed)
	ADH-AES128-SHA256 (Failed)
	ADH-AES256-GCM-SHA384 (Failed)
	ADH-AES256-SHA (Failed)
	ADH-AES256-SHA256 (Failed)
	ADH-CAMELLIA128-SHA (Failed)
	ADH-CAMELLIA256-SHA (Failed)

jvehent / cipherscan top domains

Created September 26, 2013 07:06

Cipherscan of major internet websites that have HTTPS enabled. The output shows the server ciphers preferences, TLS version and PFS key size if present. https://github.com/jvehent/cipherscan

	$ for site in google.com facebook.com youtube.com yahoo.com wikipedia.org linkedin.com microsoft.com twitter.com amazon.com blogspot.com tumblr.com netflix.com mozilla.org marketplace.mozilla.com login.persona.org; do echo;echo "-- $site --"; ./CiphersScan.sh $site:443;done

	-- google.com --
	prio ciphersuite protocol pfs_keysize
	1 ECDHE-RSA-AES128-GCM-SHA256 TLSv1.2 ECDH,P-256,256bits
	2 ECDHE-RSA-RC4-SHA TLSv1.2 ECDH,P-256,256bits
	3 ECDHE-RSA-AES128-SHA TLSv1.2 ECDH,P-256,256bits
	4 AES128-GCM-SHA256 TLSv1.2
	5 RC4-SHA TLSv1.2
	6 RC4-MD5 TLSv1.2

jvehent / cpu_process_usage.sh

Created October 18, 2013 12:44

	#!/usr/bin/env bash

	# calculate the cpu usage of a single process
	# jvehent oct.2013

	[ -z $1 ] && echo "usage: $0 <pid>"

	sfile=/proc/$1/stat
	if [ ! -r $sfile ]; then echo "pid $1 not found in /proc" ; exit 1; fi

jvehent / gist:7885790

Created December 10, 2013 04:34

	package main

	import (
	"code.google.com/p/go.crypto/openpgp"
	"code.google.com/p/go.crypto/openpgp/armor"
	_ "code.google.com/p/go.crypto/ripemd160"
	"fmt"
	"log"
	"os"
	)

Julien Vehent jvehent