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Docker - How to cleanup (unused) resources

Once in a while, you may need to cleanup resources (containers, volumes, images, networks) ...

delete volumes

// see: https://github.com/chadoe/docker-cleanup-volumes

$ docker volume rm $(docker volume ls -qf dangling=true)

$ docker volume ls -qf dangling=true | xargs -r docker volume rm

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Postfix + Dovecot on Linux

Inhalt:

• Prerequisites
• Software used
• Installation

Prerequisites

1. Debian x86_64 >=8 oder Ubuntu >= 16.04

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https://www.exratione.com/2014/05/a-mailserver-on-ubuntu-1404-postfix-dovecot-mysql/


Ex
Ratione
GitHub • Consulting • Blog • Archives • Feed
A Mailserver on Ubuntu 14.04: Postfix, Dovecot, MySQL
By Reason May 1, 2014 Permalink

This long post contains a recipe for building a reasonably secure Ubuntu 14.04 mail server in Amazon Web Services, using Postfix, Dovecot, and MySQL, with anti-spam packages in the form of amavisd-new, Clam AntiVirus, SpamAssassin, and Postgrey. Local users are virtual rather than being system users. Administration of users and domains is achieved through the Postfix Admin web interface. Webmail is provided by Roundcube.

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#!/bin/bash

DOMAIN=example.com
USERNAME=admin

# Configure hostname
sed s/"127.0.0.1   localhost"/"127.0.0.1   $DOMAIN localhost"/ -i /etc/hosts
sed s/HOSTNAME.*/HOSTNAME=$DOMAIN/ -i /etc/sysconfig/network

# Intall server and mutt

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'use strict';
console.log('Loading function');

var AWS = require('aws-sdk');
var fs = require('fs');
var https = require('https');
var spawn = require('child_process').spawn;
var util = require('util');

AWS.config.apiVersions = {

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#
# According to AWS Docs - http://docs.aws.amazon.com/ses/latest/DeveloperGuide/postfix.html
#
# Rewrites all sender addresses to a single canonical ses verified address.
#
# Expects a vars files at ../vars/PostfixSES-vars.yml with the following variables:
#   - ses_host: email-smtp.us-west-x.amazonaws.com
#   - ses_port: 587
#   - ses_username: ses-smtp-username
#   - ses_password: ses-smtp-password

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{
  "AWSTemplateFormatVersion" : "2010-09-09",
  "Description" : "Mail server for receiving",

  "Parameters" : {
     "MailServerDomain" : {
        "Type" : "String",
        "Default" : "mail.example.com",
        "Description" : "mail server domain"
     },

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#!/bin/bash
#Configuring postfix to use aws ses as a gateway.
#https://gist.github.com/JohnMorales/d554e227146735217536462141fc6898
#update via `gist -u d554e227146735217536462141fc6898 config_mail.sh`

# Configuring postfix.
if [ -z "$AWS_ACCESS_KEY_ID" ]; then
  echo "Must have AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY set"
  exit 1
fi

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key gen : NAVN-AUQL-LP2V-3GAJ
request code :
o3oHEuwvhh7v+A6TLNtma5KLZ55NHaj+RM9q/Th9FzsBJuwRWIf30ZqRFzhaHdPKyX8wMH+IENxrzetMa1egQLU11okKTpWJnkpBPJ7mpzRYF6pntD81ffxXuOZDuhuUruvGZNRtwJVpvckuYpH1BJgDP+xfprftjSGjxpOzyyNXu14gXEdWpsj4Z616WNfaPqwXcEIHKx4Xw64Bb6oT6NeT22SuWlKX7bLCU7jStjFPoziw
activation code:
IaBiNBLlJi40BYfmC8+bt2+y6fEBCLEPS9sngItbIsH+w/akZGWssMqLCxNkF/eXpoKgIJ6DH4KNoxhtR1PToWWw863yInFTMbv4WBnwxEN3hemyvxqTHLda6oskxFH3tg+qkEFAfOC7FalnFn/J+2lg71GQssZsKMxHn+JonsC+K3al2IU4lNga7sFE41La58NL/lZh2VidNwp1fAAFIadtjwLtvYaRJbbjdxOW9PGPbAJTEvQb2UnMyeyIdDWx9m1b232rAKMSI5fqkO9RLu48FkadwAZA0QrvZ1FYKIwKn+9g6r0lmNfTOUcRIAR2cEV/jQmz9khvd+V81+RGxw==

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#!/bin/bash

export LANG="en_US.UTF-8"

rm -Rf ~/Library/Application\ Support/PremiumSoft\ CyberTech/Navicat*
rm -Rf ~/Library/Caches/com.prect.NavicatPremium
rm -Rf ~/Library/Preferences/com.prect.NavicatPremium.plist
sudo rm -Rf /Applications/Navicat\ Premium.app/