diff --git a/free_cloud_hosting_VPS/readme.md b/free_cloud_hosting_VPS/readme.md new file mode 100644 index 0000000..248dc53 --- /dev/null +++ b/free_cloud_hosting_VPS/readme.md @@ -0,0 +1,165 @@ +# Free Hosting VPS + +###### guide-by-example + +# Purpose & Overview + +Free virtual private server hosting on a cloud.
+Here are github repos with details on various providers: + +* [Cloud Service Providers Free Tier Overview](https://github.com/cloudcommunity/Cloud-Free-Tier-Comparison) +* [Stack on a budget](https://github.com/255kb/stack-on-a-budget) + +So far I only run Oracle Cloud.
+Will add others if I will deal with them, or if Oracle fucks me over. + +# Oracle Cloud + +![logo](https://i.imgur.com/SVJ6dTP.png) + +### What Free Tier Offers + +As of 2023. + +[Official docs](https://docs.oracle.com/en-us/iaas/Content/FreeTier/freetier_topic-Always_Free_Resources.htm) + +* 1-2 instances of AMD based Compute VMs with 1/8 OCPU and 1 GB ram each
+ shape name: VM.Standard.E2.1.Micro +* 1-4 instances of 4 Arm-based Ampere A1 cores with 24 GB of ram to divide
+ shape name: VM.Standard.A1.Flex +* Block Volumes Storage, 200 GB total, default 50GB for boot of any VM +* 10 Mbps bandwidth +* 10 TB per month outbound data transfer + +### Registration + +* A **credit card** is needed during the registration. +* **[Home region](https://docs.oracle.com/en-us/iaas/Content/General/Concepts/regions.htm)** +is picked and it can **not** be changed later. +Choise here will impact the IP address location and possibly availability of +free instances to create. +* I read that you wont be able to re-use credit card if you **terminate** your account. + +Seen comments online that some just cant get the registration done. + +### Instance creaction + +![insance](https://i.imgur.com/nrR6Kx3.png) + +Instances > Create instance + +* Name - whatever +* Create in compartment - default +* Placement - default; `Always Free-eligible` +* Security - default - shield disabled +* Image and shape + * VM.Standard.E2.1.Micro `Always Free-eligible` + * Ubuntu 22.04 `Always Free-eligible` +* Networking - edit; create a new virtual cloud network; or pick existing one
+ same for subnet
+ Assign a public IPv4 address +* Add SSH keys - `Paste public keys`. Well it be good if you were not noob, + and already have your ssh identiy and that you just paste your public key.
+ Noobs will need to pick `Generate a key pair for me`, then download + both public and private keys and google out how to use them to + SSH in the VM once it's running. +* Boot volume - keep default + +You can ignore €1.85/month charge for Boot volume displayed, its a bug. +After the creation, in Billing & Cost Management - Subscriptions or Cost analysis +the ammount displayed should be 0€. + + +### Firewall settings + +in examples here port will be 7777/tcp + +**firewalld in ubuntu - allow stuff in** + +* `sudo apt-get update && sudo apt-get upgrade` +* `sudo apt install firewalld` +* `sudo firewall-cmd --zone=public --permanent --add-port=7777/tcp` +* `sudo firewall-cmd --reload` + +**Oracle network settings ingress rule** + +* Virtual Cloud Networks > VNC you got there > Subnet > Securty List > Ingress Rules +* A rule for port 22 should be there, to let in ssh. +* Add new rule + * Source Type - CIDR + * Source CIDR - `0.0.0.0/0` + * IP Protocol - `All Protocols` + +![ingress](https://i.imgur.com/YouPN9n.png) + +**To test** + +* ssh in to the VM +* `nc -l 7777` - starts a netcat server listening on port 7777/tcp +* go on site like [yougetsignal.com](https://www.yougetsignal.com/tools/open-ports/)
+ put in IP of the VM, port, test if you get `open` +* or from your linux machine `nc 7777`,
+ write something, it should appear in the VM + +If it works, then depending on the use, one can start securing stuff better. +For example, restricing from what public ip connection are accepted - +ingress rule has `Source CIDR` set to lets say `353.749.385.54/32` + +If set, the online test from a website will fail, but nc from +a machine with that public IP will work. + +### Docker on ubuntu + +For some reason [its not stupid simple](https://docs.docker.com/engine/install/ubuntu/) +to install docker on ubuntu. You are put to decisions.
+I picked the script way, which I guess dont get upated? + +* `curl -fsSL https://get.docker.com | bash` + +### Prevent reclaim if VM runs idle too much + +![idle](https://i.imgur.com/q7mGQns.png) + +I will not be running anything for now as a test, +if email about idle instance comes. + +IF it comes the solution should be to put regular load on the VM. +This should do it. + +* `echo "*/5 * * * * root timeout 46 nice md5sum /dev/zero" | sudo tee /etc/cron.d/dummy-load` + +Some discussion on this + +* [1](https://www.reddit.com/r/oraclecloud/comments/122b4gf/a_simple_cron_controlled_load_generator_for/) +* [2](https://www.reddit.com/r/oraclecloud/comments/125rege/what_to_run_on_always_free_to_prevent_idle/) + +## Archlinux + +![arch](https://i.imgur.com/eXGmmqR.png) + +I am used to archlinux and everything else feels wrong.
+So to get it as a VM on oracle cloud. + +* Download the latest qcow2 image
+ [https://geo.mirror.pkgbuild.com/images/latest/Arch-Linux-x86_64-cloudimg.qcow2](https://geo.mirror.pkgbuild.com/images/latest/Arch-Linux-x86_64-cloudimg.qcow2) +* Storage > Buckets > Bucket in the list > Upload +* Compute > Custom images > Import image + * Operating system - Generic Linux + * Import from an Object Storage bucket + * Image type - QCOW2 + * Paravirtualized mode + +arch/arch for SSH login, recommend disabling password login and do IP restriction + +Not tested but theres also this as option: + +* [Convert instructions](https://gist.github.com/zengxinhui/01afb43b8d663a4232a42ee9858be45e) +* [arch ARM](https://www.reddit.com/r/archlinux/comments/14iqb6h/how_to_install_arch_on_an_oracle_cloud_free_tier/) + +### Links + +Some youtube videos and articles + +* [youtube-1](https://youtu.be/NKc3k7xceT8) +* [youtube-2](https://youtu.be/zWeFD4NNF5o) +* [ryanharrison - oracle-cloud-free-server](https://ryanharrison.co.uk/2023/01/28/oracle-cloud-free-server.html)