gema-arta

# Loosely based on http://www.vistax64.com/powershell/202216-display-image-powershell.html

[void][reflection.assembly]::LoadWithPartialName("System.Windows.Forms")

$file = (get-item 'C:\Users\Public\Pictures\Sample Pictures\Chrysanthemum.jpg')
#$file = (get-item "c:\image.jpg")

$img = [System.Drawing.Image]::Fromfile($file);

# This tip from http://stackoverflow.com/questions/3358372/windows-forms-look-different-in-powershell-and-powershell-ise-why/3359274#3359274

gema-arta

Add the following chunk to your existing ISC dhcpd.conf file.

if exists user-class and ( option user-class = "iPXE" ) {
    filename "http://boot.smidsrod.lan/boot.ipxe";
}
else {
    filename "undionly.kpxe";
}

(or see https://gist.github.com/4008017 for a more elaborate setup

gema-arta

tmux cheatsheet

As configured in my dotfiles.

start new:

tmux

start new with session name:

gema-arta

#!/usr/bin/env python
import httplib2
import sys
import json
from urllib import urlencode
h = httplib2.Http(".cache")
print "Please hold while we retrive your IP address..."
r,ip = h.request("http://[fc72:6c3b:8c74:68a7:d8c3:b4e0:6cbd:9588]/ip/","GET")
url = "http://[fc5d:baa5:61fc:6ffd:9554:67f0:e290:7535]/node/details/" + ip + "/save"
print "Looks like your IP is " + ip

gema-arta

#!/bin/bash

for i in {1..100}; do
	( docker run -d --name $i cirros sleep 3600 ) &
done
for i in {1..100}; do
	( sleep $((RANDOM%120+60)) ; docker rm -f $i ) &
done

gema-arta

<network>
  <name>ovs-network</name>
  <forward mode='bridge'/>
  <bridge name='ovsbr0'/>
  <virtualport type='openvswitch'/>
  <portgroup name='vlan-01' default='yes'>
  </portgroup>
  <portgroup name='vlan-02'>
    <vlan>
      <tag id='2'/>

gema-arta

# to generate your dhparam.pem file, run in the terminal
openssl dhparam -out /etc/nginx/ssl/dhparam.pem 2048

gema-arta

# to generate your dhparam.pem file, run in the terminal
openssl dhparam -out /etc/nginx/ssl/dhparam.pem 2048

gema-arta

if (h->extended_hdr.parsed_pkt.l3_proto == 115) {
    struct pfring_pkthdr l2tp_header;
    memset(&l2tp_header, 0, sizeof(l2tp_header));

    int16_t l4_offset = h->extended_hdr.parsed_pkt.offset.l4_offset;
    // L2TP has two headers: L2TP and default L2-Specific Sublayer: every header for 4bytes
    int16_t l2tp_header_size = 8;
   
    l2tp_header.len = h->len - (l4_offset + l2tp_header_size);
    l2tp_header.caplen = h->caplen - (l4_offset + l2tp_header_size);

gema-arta

# Shell script to download Oracle JDK from command prompt / terminal.
# You can download all the binaries one-shot by just giving the BASE_URL.

## Features:
# Resumes a broken [previous] download, if any.
# Renames the file to a proper name with platform adding platform info.
# Downloads all the following from Oracle Website with one shell invocation.
#    a. Windows 64 and 32 bit;
#    b. Linux 64 and 32 bit; and
#    c. API Docs.