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Network Configuration Management on Amazon Linux 2023

This guide details how to override the default gateway assigned by DHCP.

Opening and Editing Network Configuration

1. Open the Network Configuration File Use nano (or any text editor of your choice) to open the network configuration file:

sudo nano /usr/lib/systemd/network/80-ec2.network

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sudo apt update && sudo apt -y upgrade
sudo apt -y install lvm2 mdadm gdisk raidutils cryptsetup
lsblk

: <<'END'
    NAME         MAJ:MIN RM  SIZE RO TYPE MOUNTPOINTS
    loop0          7:0    0 24.9M  1 loop /snap/amazon-ssm-agent/7628
    loop1          7:1    0 55.7M  1 loop /snap/core18/2812
    loop2          7:2    0   87M  1 loop /snap/lxd/27037
    loop3          7:3    0 63.9M  1 loop /snap/core20/2182

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[Unit]
Description=Open-Mount and Unmount-Close LVM LUKS RAID6 Volume
After=local-fs-pre.targe

[Service]
Type=oneshot
RemainAfterExit=yes
ExecStartPre=-/bin/mkdir -p /mnt/raid6LVM
ExecStartPre=-/bin/umount /mnt/raid6LVM
ExecStart=/usr/lib/systemd/systemd-cryptsetup attach lv1_crypt /dev/vg1/lv1

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[Unit]
Description=Open-Mount and Unmount-Close LUKS RAID6 Volume
After=local-fs-pre.targe

[Service]
Type=oneshot
RemainAfterExit=yes
ExecStartPre=-/bin/mkdir -p /mnt/raid6NoLVM
ExecStartPre=-/bin/umount /mnt/raid6NoLVM
ExecStart=/usr/lib/systemd/systemd-cryptsetup attach md0_crypt /dev/md0

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from flask_appbuilder.security.manager import AUTH_OAUTH

SECRET_KEY = 'A1B4E2F0C3D7FE98456AC0BD34EF1234'

AUTH_TYPE = AUTH_OAUTH
AUTH_USER_REGISTRATION = True
AUTH_USER_REGISTRATION_ROLE = "Admin"
OAUTH_PROVIDERS = [
        {
            'name': 'auth0',

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1: "AC", 2: "A", 3: "C", 4: "DE", 5: "B", 6: "B", 7: "B", 8: "AB", 9: "B", 10: "BD",
11: "D", 12: "D", 13: "AB", 14: "C", 15: "D", 16: "D", 17: "D", 18: "AD", 19: "B", 20: "A",
21: "DE", 22: "D", 23: "C", 24: "C", 25: "D", 26: "C", 27: "C", 28: "A", 29: "D", 30: "D",
31: "BC", 32: "C", 33: "C", 34: "C", 35: "BE", 36: "BC", 37: "B", 38: "B", 39: "B", 40: "D",
41: "D", 42: "D", 43: "D", 44: "DE", 45: "BC", 46: "B", 47: "C", 48: "C", 49: "C", 50: "BC",
51: "B", 52: "D", 53: "B", 54: "D", 55: "B", 56: "D", 57: "A", 58: "C", 59: "D", 60: "C",
61: "D", 62: "B", 63: "C", 64: "AE", 65: "D", 66: "AB", 67: "D", 68: "A", 69: "AD", 70: "DE",
71: "A", 72: "A", 73: "A", 74: "C", 75: "B", 76: "C", 77: "C", 78: "C", 79: "BC", 80: "A",
81: "C", 82: "C", 83: "A", 84: "D", 85: "C", 86: "C", 87: "A", 88: "A", 89: "C", 90: "D",
91: "AE", 92: "D", 93: "C", 94: "C", 95: "BD", 96: "D", 97: "BEF", 98: "AD", 99: "D", 100: "D",

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#!/usr/bin/python3
import argparse
import hashlib
import json
import os
import socket
import sys
import time

jdmedeiros

Installing a Graphical User Interface (GUI) on AWS EC2 Linux-2 

sudo amazon-linux-extras install mate-desktop1.x
sudo amazon-linux-extras install epel
sudo amazon-linux-extras install chromium filezilla
sudo yum -y install xrdp chromium filezilla
sudo systemctl enable --now xrdp

# This will make the graphic interface available to all users
sudo bash -c 'echo PREFERRED=/usr/bin/mate-session > /etc/sysconfig/desktop'

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# Make sure to export the instance ID 
# export instance_id=$(curl -s http://169.254.169.254/latest/meta-data/instance-id)

import boto3
import os
from botocore.exceptions import ClientError
ec2 = boto3.client('ec2', region_name='us-east-1')
volume_info = ec2.describe_volumes(
    Filters=[
        {

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:'SET PASSWORD
sudo -i -u postgres
psql
\password postgres
'

# RHEL / CentOS 8
# https://www.postgresql.org/download/linux/redhat/
# https://www.postgresql.org/docs/current/runtime.html
dnf list installed |grep postgresql