SciTech

Creating a browser trusted, self signed, SSL certificate; X.509 v3 with Subject Alternate Name (SAN) Requesting certificates with Let's Encrypt's official certbot client https://shellcreeper.com/how-to-create-valid-ssl-in-localhost-for-xampp/

Q. I am using an IP Address to access my application website. Do I need a domain for an SSL? A: If it is just you and no one else (or the experience of anyone else [accidently] accessing your site does not matter), you can just use a self-signed SSL certificate for your IP, which you can create in one click at ZeroSSL for example with Self-Signed Certificate Generator  | But does this work for a cloud app?

How to Install a Self-Signed SSL Certificate on Your Ubuntu 18.04 VPS or Dedicated Server | How To Create a Self-Signed SSL Certificate for Apache in Ubuntu 16.04; DigitalOcean | Creating a self-signed SSL certificate for local Docker development |

Google queries: self-signed ssl certificate for ip address self-signed ssl certificate docker container

Create and use SSH keys

Ed Bott's review web hosting services | caltlgin's FOSS web hosting | DataCamp Tutorials | Cheat Sheets | How to Set Up SSH for your Ubuntu 18.04 VPS or Dedicated Server Connecting to your VPS with SSH and improving security The ultimate dictionary for essential server terms SSH two-factor authentication: How to enable on your VPS Tutorial: VPS Security Audits Using Lynis | How to Audit Your Linux System’s Security with Lynis | Self-hosted alternatives: Ultimate guide to cheaper SaaS Managing SSH Keys in Google Cloud Platform Amolith uses BuyVM | BuyShared.net is an affiliate | attractive reseller accounts | BuyVM wiki |

Experience with BuyVM/Frantech

Time4VPS kb |

Deploy Nextcloud thru Docker | Installing NextCloud and Collabora Office Online with Docker on Ubuntu 16.04 | How to Use Docker Containers – mte | Get to Know Docker's Ecosystem | Docker Tips 1-80+ | Google search |

docker run -d -p 8080:80 -p 443:443 -v $HOME/nextcloud:/var/www/html nextcloud

docker containers stored in /var/lib/docker/containers change install dir

delete docker images when force doesn't work | This worked for shiori golang when other commands failed: delete all images forcefully (use this command at your own risk it will delete all of your images): docker rmi $(docker images -q) -f

How to update a Docker image with new changes? | docker start <containerID> | docker exec -it <containerID> bash | karthequian/helloworld docker image: python3.6, nginx 1.14.0 (nginx -v) nextcloud official: php 7.3.9, Apache/2.4.38 (Debian) Docker tips, tricks | How to update/add a file in a Docker image | Command to exit from a Docker container without interrupting it: Ctrl+p+q You can use “Ctrl+d” command to exit from a container. But sometimes it causes issues, so using “Ctrl p q” is a good trick. Make sure that the container status using “docker ps” command. Docker tips and tricks – Docker cheat sheet | How To Get Information About a Container In Docker | How to update/add a file in the Docker Image | Building a Docker Security Program | updating Docker containers section

https://blog.ssdnodes.com/blog/getting-started-docker-vps/ https://blog.ssdnodes.com/blog/?s=docker https://blog.ssdnodes.com/blog/self-hosting-handbook/

https://hub.docker.com/_/nextcloud/ https://httpd.apache.org/docs/2.4/howto/reverse_proxy.html

Awesome Docker list | on github |

https://github.com/schollz/rwtxt

https://docs.docker.com/samples/library/nextcloud/

Deploy Docker containers in Google Cloud Platform – Machine Box

Dokuwiki: Bitnami docker | vimagick |

https://blog.ssdnodes.com/blog/category/self-hosting/ https://www.digitalocean.com/community/tutorials/how-to-install-and-use-docker-on-debian-9

id -nG (current user's groups)

Commit changes to a modified docker container, Step 7

docker-alpine

Host multiple websites on one VPS with Docker and Nginx

docker stop $(docker ps -aq) docker rm $(docker ps -a -q) docker stop $(docker ps -aq) docker rmi -f $(docker images -q)

App Engine requires that your application listens on port 8080

In the free tier, you have a limit of 12 projects. The free tier is available only for the Standard Environment (not flex env). Reddit thread: Is there is a new limit on free Google App Engine projects? : AppEngine

-— + Per this doc, only automatic scaling is supported in F1 instances. | “App Engine standard environment scales down to 0 instance by default so you shouldn't have to specify it in your app.yaml.” [source] + When you deploy your app to Google App Engine, it's automatically associated to one of the following instance types:   Frontend Instance: 28 free F1 instance-hours per day   Backend Instance: 9 free B1 instance-hours per day By default, your app is assumed to be a Frontend Instance with automatic scaling. But if you change the app.yaml in your root directory, and introduce a configuration to enable the Basic or Manual scaling, your app will become assumed to be a Backend Instance. To ensure that your app usage will always be free, you can define the following properties in your app.yaml file instance_class: F1 automatic_scaling: max_instances: 1 -—

appengine project cleanup useful gcloud commands gcloud app versions list

Choosing an appengine environment

Add the —quiet flag to your gcloud command to disable all interactive prompts When deploying using a gcloud command, specify explicitly your app's version to avoid having multiple instances being billed thus reducing your daily free hours allowance. A gcloud deploy command example would be: gcloud --quiet app deploy --version=production [source] -—

f1-micro only has 0.6gb RAM. So we'll need to allocate a swap file, just in case we ran out of memory. Use the commands below. 1. sudo fallocate -l 1G /swapfile 2. sudo chmod 600 /swapfile 3. sudo mkswap /swapfile 4. sudo swapon /swapfile 5. echo '/swapfile none swap sw 0 0' | sudo tee -a /etc/fstab Even if there is already plenty of RAM available, it's still beneficial to have swap [source] How to add swap space to Ubuntu 18.04 | Debian 9 |

Firewall rules overview, VPC, Google Cloud | Securely connecting to VM instances |

starting/stopping an instance

journalctl -u ssh.service | journalctl -u network.service faillog netstat -tulpn | netstat -npl tar -cvzf archive-name.tar.gz directory-name

The Compute Engine stores the disk data independently of the instance. A persistent disk's life cycle is not tied to a particular instance, making them flexible and easily migrated. Persistent disks are also encrypted, and data is encrypted the moment it leaves the instance. [source]

The gcloud CLI tool is accessible on all Compute Engine VMs when started through the console's ssh option. [source]

Reserve a static IP address

GCE static IP pricing | Note: Starting January 1st, 2020, GCP will introduce an additional charge for publicly addressed VM instances that don't fall under the Free Tier. You will not be charged for other publicly addressed resources, such as forwarding rules. | “Each month, eligible use of all of your f1-micro instances and associated external IP addresses are free until you have used a number of hours equal to the total hours in the current month” https://cloud.google.com/free/docs/gcp-free-tier

Installing JuypterHub on Google Compute Engine Outstanding and detailed article: Setting Up Google Cloud For Data Science (run Jupyter notebooks on GCE Compute Engine and Cloud Shell ) – DataCamp To upload and download files from the GCE terminal: gcloud compute scp source_path target_path (local folder: ./) gcloud compute scp [instance_name]:[path to file on instance] ./ To upload some local file to your instance: gcloud compute scp [local file].[instance_name]:[path]