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TLS

Certificates are valid for one year by default (i.e. generated by kubeadm)

The certificates validity periods can be checked with openssl.

For example, connected on one of the masters :

openssl -in /etc/kubernetes/pki/apiserver.crt -noout -text

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---
kind: Service
apiVersion: v1
metadata:
  name: ingress-nginx
  namespace: ingress-nginx
  labels:
    app.kubernetes.io/name: ingress-nginx
    app.kubernetes.io/part-of: ingress-nginx
  annotations:

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Overview

The Sierra MC7355 can run configurations for several North American carriers. These cards are easy to find on eBay and notable for their support for the Sprint LTE network. Unless you're luck out, you may find you need to flash a new carrier configuration onto the card you purchased before using it.

Notes

These procedures are specific to the setup I had to perform this on. Most notably, the only system I had with a mini-PCI-e slot was the target pfSense system, a PCengines APU1d with no VGA port (serial console only). If you're able to obtain a

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#!/usr/bin/env python2.7

# Copyright (C) 2017 Amazon.com, Inc. or its affiliates.
# All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License").
# You may not use this file except in compliance with the License.
# A copy of the License is located at
#
#    http://aws.amazon.com/apache2.0/

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Terraform vs PostgreSQL RDS

Thanks to new resources (postgresql_default_priviledges) and some fixes Terraform can now add new databases and manage ownership / access to them.

This example creates new database and two users. You can use owner to create new tables and run migrations and user for normal read/write access to database.

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QEMU

• Debian like systems

Dependencies

# git clone https://git.qemu.org/git/qemu.git && cd qemu
# git submodule init
# git submodule update --recursive

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HQLS

High Quality Linux Sound is just my memo about Linux sound stack configuration, as:

1. I never remember all the tools to configure (ALSA, PulseAudio...)
2. I never remember the correct parameter(s)
3. It must be automated

ALSA

PulseAudio

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Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management\PrefetchParameters]
"BootId"=dword:00000029
"BaseTime"=dword:22a20bb3
"EnableSuperfetch"=dword:00000000
"SfTracingState"=dword:00000001
"EnablePrefetcher"=dword:00000000

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Helm Semantics

Helm Commands

Install

$ helm install --dry-run --debug ./mychart
$ helm install --dry-run --debug --set favoriteDrink=slurm ./mychart
$ helm install --dry-run --debug --namespace foo --tiller-namespace foo --name my-chart .

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OpenVPN

Configuration

# general
verb 4
# silence repeating messages
mute 20
user root