lachesis

Keybase proof

I hereby claim:

• I am lachesis on github.
• I am aftbit (https://keybase.io/aftbit) on keybase.
• I have a public key whose fingerprint is 9E15 397E 4D53 7E3A 3A23 8F87 E620 C8A7 4BAF 5D09

To claim this, I am signing this object:

lachesis

--- a/Makefile	2010-08-23 08:46:24.000000000 -0700
+++ b/Makefile	2015-05-06 21:20:20.177910661 -0700
@@ -100,15 +100,15 @@
 ################
 ## CHANGE NAME OF ANSI COMPILER HERE
 ################
-CC      = 
+CC      = gcc
 # Current values for DATABASE are: INFORMIX, DB2, TDAT (Teradata)
 #                                  SQLSERVER, SYBASE, ORACLE

lachesis

# How to use "acme.sh" to set up Lets Encrypt without root permissions
# See https://github.com/Neilpang/acme.sh for more

# This assumes that your website has a webroot at "/var/www/<domain>"
# I'll use the domain "EXAMPLE.com" as an example

# When this is done, there will be an "acme" user that handles issuing,
# updating, and installing certificates. This account will have the following
# (fairly minimal) permissions:
#   - Host files at http://EXAMPLE.com/.well-known/acme-challenge

lachesis

I'm experiencing the weirdest internet issue. I use Comcast Xfinity in El Cerrito, CA. I have a new Arris SB6190 cable modem running firmware version 9.1.93N. A few days ago, I noticed that new tabs start taking a few seconds to load, and curl requests to example.com took ~5.1 seconds. However, if I specified -4 or -6 to curl, it resolved immediately. I immediately suspected DNS, but "host" resolved immediately as well.

So this was too weird to ignore. I set my resolv.conf to point to 8.8.8.8 (instead of my EdgeRouter X) and did:

time strace -f -T curl -s http://www.example.com > /dev/null 2> bad
time strace -f -T curl -4 -s http://www.example.com > /dev/null 2> good

Now if you look at the resulting logs, you'll see that curl starts a new thread to handle DNS resolution. In the good logs, the relevant bit looks like:

[pid 12438] socket(AF_INET, SOCK_DGRAM|SOCK_NONBLOCK, IPPROTO_IP) = 3 <0.000005>

lachesis

from __future__ import print_function, division, unicode_literals
import sys, time, re, struct, base64, hmac, hashlib
def get_hotp(secret, counter):
    """Return the HMAC-Based One-Time Password for the the given secret (base32 encoded) and the counter.
    >>> [get_hotp('GEZDGNBVGY3TQOJQGEZDGNBVGY3TQOJQ', i) for i in xrange(10)]
    [755224, 287082, 359152, 969429, 338314, 254676, 287922, 162583, 399871, 520489]
    """
    secret = re.sub(r'\s*', '', secret)    # remove whitespace
    secret = secret.upper()  # uppercase
    if len(secret) % 8 != 0:

lachesis

#!/bin/bash
# Get last value of statsd gauge from grafana server
# Set env vars:
#  GRAFANA_BASE="https://www.example.com"   <-- your grafana base URL
#  GRAFANA_API_KEY="eyJryJzd.....IxMj0F9"   <-- your grafana API key

curl --compressed --silent \
    "$GRAFANA_BASE/api/datasources/proxy/1/render" \
    -H "Authorization: Bearer $GRAFANA_API_KEY" \
    --data-urlencode "target=summarize($1, "'"1h", "last")' \

lachesis

#!/usr/bin/env python3
# Subscribes contacts in a CSV file to a Close campaign
# Requires python3.7 or newer (f-strings)
# Prepare: save this script in close_sub.py and `pip3 install closeio`
# CSV should be two columns with email followed by exact Sequence name on Close
# Usage: KEY=api_yourcloseiokey LIVE=0 python3 close_sub.py leads.csv
import csv
import fileinput
import os
import re

lachesis

#!/usr/bin/python3
# Prints current PM2.5 concentrations based on fire.airnow.gov map
# pip3 install requests pytz geobuf
# usage: LAT=37.9053745 LNG=-122.3048239 MAX_FEATURES=6 MAX_DIST=11 python3 airnow.py
# optional, for AQI instead of raw concentration (µg/m³): pip3 install python-aqi  and pass AQI=1
import collections
import datetime
import math
import os
import requests

lachesis

#!/usr/bin/env python3
# Get duke energy hourly electricity usage
# before running:  pip3 install requests
# use env vars to set username, password, and lookback days
# e.g.  DUKE_USERNAME=myemail@example.com DUKE_PASSWORD=hunter11 DUKE_DAYS_BACK=14 python dukeusage.py

import os
import datetime
import json
import re

lachesis

# License: Public Domain, use as you like, no warranty
import time
import threading
import pylru  # from pip

class ExpiringLRUCache(object):
    def __init__(self, size, exp=7200):
        self.exp = exp
        self.size = size
        self.lru = pylru.lrucache(size)