maddiesch

Systemd managed Sidekiq

This assumes that sidekiq.service is located in <rails root>/lib/services/sidekiq.service

lesovsky

WITH table_opts AS (
    SELECT
        c.oid, c.relname, c.relfrozenxid, c.relminmxid, n.nspname, array_to_string(c.reloptions, '') AS relopts
    FROM pg_class c
    INNER JOIN pg_namespace n ON c.relnamespace = n.oid
    WHERE c.relkind IN ('r', 't') AND n.nspname NOT IN ('pg_catalog', 'information_schema') AND n.nspname !~ '^pg_temp'
), 
vacuum_settings AS (
    SELECT
        oid, relname, nspname, relfrozenxid, relminmxid,

rondy

FWIW: I (@rondy) am not the creator of the content shared here, which is an excerpt from Edmond Lau's book. I simply copied and pasted it from another location and saved it as a personal note, before it gained popularity on news.ycombinator.com. Unfortunately, I cannot recall the exact origin of the original source, nor was I able to find the author's name, so I am can't provide the appropriate credits.

---

Effective Engineer - Notes

• By Edmond Lau
• Highly Recommended 👍
• http://www.theeffectiveengineer.com/

What's an Effective Engineer?

cig0

# Fixex the error 'Failed: restore error: listDB.lists: error creating collection \
# listDB.lists: error running create command: exception: specify size: when capped is true'
# 
# Credits: Juan Pablo Nogueira, https://ar.linkedin.com/in/juan-pablo-nogueira-30645514/en

grep -rl ', "capped" : { "$undefined" : true }, "size" : { "$undefined" : true }' \
/path/to/DB/to/be/restored/* | xargs sed -i 's/, "capped" : { "$undefined" : true }, \
"size" : { "$undefined" : true }//g'

xenophonf

Dual-boot Mac OS X (FileVault2) and Ubuntu (OpenZFS/LUKS)

This procedure results in a computer that runs both Mac OS X and Ubuntu in a dual-boot configuration, each operating system using full (whole) disk encryption, and with the Ubuntu root file system stored on a ZFS pool encrypted using LUKS. The specific hardware and software versions used to document this procedure are:

• MacBookPro8,2

phumpal

CoreOS on Hetzner w/hardware RADI1

The existing docs when attempting to install CoreOS on Hetzner are a bit incomplete. This caused a bit of frustration for me so I am putting this doc together in hopes that it will help someone else.

Pre-requisites

After ordering your server you will need to log into the Hetzner server console

Add a public key

Uchean

Get ClamAV running on Mac OS X (using Homebrew)

The easiest way to get the ClamAV package is using Homebrew

$ brew install clamav

Before trying to start the clamd process, you'll need a copy of the ClamAV databases.

Create a freshclam.conf file and configure as so

maxivak

Sending emails with ActionMailer and Sidekiq

Send email asynchroniously using Sidekiq.

ActionMailer

Create your mailer us usual:

0XDE57

ABOUT

about:config settings to harden the Firefox browser. Privacy and performance enhancements.
To change these settings type 'about:config' in the url bar. Then search the setting you would like to change and modify the value. Some settings may break certain websites from functioning and rendering normally. Some settings may also make firefox unstable. I am not liable for any damages/loss of data.

Not all these changes are necessary and will be dependent upon your usage and hardware. Do some research on settings if you don't understand what they do. These settings are best combined with your standard privacy extensions (HTTPS Everywhere No longer required: Enable HTTPS-Only Mode, NoScript/Request Policy, uBlock origin, agent spoofing, Privacy Badger etc), and all plugins set to "Ask To Activate".

kolargol

#!/bin/bash
# Script that detects arrival,presence,departure of iPhone on local network
# Requires arp-scan tool
# Written by Zbyszek Żółkiewski, please visit: http://blog.onefellow.com
# Install:
# - copy ip_scan.sh to /usr/local/bin/
# - chmod ugo+x /usr/local/bin/ip_scan.sh
# - change 'ip_iphone' variable to point you your iPhone IP
# - option: insert your boxcar_id otherwise comment-out boxcar_send function in action_after_grace
# - put into cron: echo "*/1 * * * * root /usr/local/bin/ip_scan.sh" > /etc/cron.d/iphone_scan , or whatever user you want