davewongillies

Supported built-in functions

• abs(float) - Returns the absolute value of a given float. Example: abs(1) returns 1, and abs(-1) would also return 1, whereas abs(-3.14) would return 3.14. See also the signum function.

• basename(path) - Returns the last element of a path.

• base64decode(string) - Given a base64-encoded string, decodes it and returns the original string.

davewongillies

Taken from http://damsteen.nl/blog/how-to-use-a-serial-connection-to-your-netgear-readynas as it always seems to be down

How-to: Use a serial connection to your Netgear ReadyNAS

It is possible to connect to the command-line interface of your Netgear ReadyNAS using a serial connection. I have seen a very old blog post on the internet describing how to connect via serial to a Infrant ReadyNAS NV but it wasn't very clear how to connect to a Netgear ReadyNAS NVX Pioneer Edition, which I have. I guess I'm not the only one who wants to connect to their ReadyNAS, so I'm sharing my knowlegde here :)

The obvious advantages of a serial connection to your ReadyNAS is that you can experiment with network settings without the fear of rendering your NAS inaccessible. I believe it is also possible to recover the firmware in the event an update fails, although I haven't tried this myself.

Requirements

davewongillies

General OpenSSL Commands

These commands allow you to generate CSRs, Certificates, Private Keys and do other miscellaneous tasks.

Generate a new private key and Certificate Signing Request

openssl req -out CSR.csr -new -newkey rsa:2048 -nodes -keyout privateKey.key

davewongillies

What do Etcd, Consul, and Zookeeper do?

• Service Registration:
  • Host, port number, and sometimes authentication credentials, protocols, versions numbers, and/or environment details.
• Service Discovery:
  • Ability for client application to query the central registry to learn of service location.
• Consistent and durable general-purpose K/V store across distributed system.
  • Some solutions support this better than others.
  • Based on Paxos or some derivative (i.e. Raft) algorithm to quickly converge to a consistent state.
• Centralized locking can be based on this K/V store.

davewongillies

Configuring Nginx to serve SSL content is straight forward, once you have your certificate and key ready:

server { 
    listen 443 default ssl;
    root /path/to/source;
    server_name mydomain;

    ssl_certificate      /path/to/cert;
    ssl_certificate_key  /path/to/key;

davewongillies

tmux cheat sheet

(C-x means ctrl+x, M-x means alt+x)

Prefix key

The default prefix is C-b. If you (or your muscle memory) prefer C-a, you need to add this to ~/.tmux.conf:

remap prefix to Control + a

davewongillies

function aws_config
  if not fgrep -q "[$argv]" ~/.aws/credentials
    echo "Please specify a valid profile."
  else

    set token_expired false

    if test $AWS_SESSION_EXPIRY
      set now (date +%s)
      # WARNING: this date command only works with GNU date

davewongillies

Compiling and flashing a QMK Proton C for use in a SpaceCat Launch Pad

The following instructions outlines how to flash the firmware on a QMK Proton C controller for use in a SpaceCat Launch Pad.

Launch Pad

davewongillies

{
  "author": "David Gillies",
  "documentation": "",
  "keyboard": "kbdfans/kbd67/mkii_soldered",
  "keymap": "davewongillies",
  "layers": [
    [
      "KC_GRV",
      "KC_1",
      "KC_2",

davewongillies

from redis.sentinel import Sentinel
sentinel = Sentinel([
                    ('redis-sentinel1', 26379),
                    ('redis-sentinel2', 26379),
                    ('redis-sentinel3', 26379),
                    ], socket_timeout=0.1)
redis_host = sentinel.discover_master('sentry')

SENTRY_REDIS_OPTIONS = {
    'hosts': {