Fail2Ban
terraform-provider-aws
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Fail2Ban | terraform-provider-aws | |
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49 | 98 | |
10,198 | 9,410 | |
4.4% | 2.5% | |
8.8 | 10.0 | |
2 days ago | about 16 hours ago | |
Python | Go | |
GNU General Public License v3.0 or later | Mozilla Public License 2.0 |
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Fail2Ban
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Looking for a way to remote in to K's of raspberry pi's...
now some things you need to think about: - cloud init - this will need to be secure so lock it down hard anything not needed an alternative OS to look at if you have the ability's is https://www.alpinelinux.org/ also as these devices are not that powerfull every extra agent / abstaction layer you add impacts performance need to look at low over head security https://www.crowdsec.net/ and https://github.com/fail2ban/fail2ban (if you call fail2ban security) - using certificates to authenticate ssh login
- Fail2Ban – Daemon to ban hosts that cause multiple authentication errors
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Home Lab Setup Recommendations
- Nginx & crowdsec/fail2ban if you are exposing your parts (services) to the public ( https://hub.docker.com/r/baudneo/nginx-proxy-manager, https://www.crowdsec.net, https://www.fail2ban.org )
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Firewall rules beyond "deny incoming, enable only the ports that you need"
https://github.com/fail2ban/fail2ban is a mature, easy to set up way to have some dynamic firewall rules that respond to attacks. There are more sophisticated options, but they are probably not worth the return on time investment for you.
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Fail2Ban Limitation
Others seem to be (or were) experiencing this too: https://github.com/fail2ban/fail2ban/issues/3100
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Configuring Fail2ban for Traefik Reverse Proxy
I've played a bit with Traefik as reverse proxy and wanted to implement fail2ban for it, after switching from Nginx Proxy Manager. It finally works and successfully bans threat actors that conduct malicous HTTP requests. As soon as a multitude of HTTP errors are detected by fail2ban in Traefik's JSON access logs, the attacker's IP address is banned. I am using a dockerized fail2ban container and ban locally via iptables as well as optionally on Cloudflare, using Cloudflare's API. A ban notification via Telegram can also be configured.
- SSHGuard
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About the roadmap...
However I do not merely rely on this trust. I monitor my systems aggressively. I implement additional security measures to mitigate my exposure and liability. There are systems like fail2ban and login-shield that I use as additional layers (and have audited the code - these systems are a lot simpler than Linux - it's unrealistic for anybody to actually fully-audit the Linux kernel).
- Fail2Ban Release 1.0.1 (2022/09/27)
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How to access Docker containers on home server from public IP?
You need to setup reverse proxy. nginx-proxy-manager, swag. There are also more options like caddy, haproxy etc... You can also setup a VPN and or a service like authelia, fail2ban, crowdsec to restrict access to your site.
terraform-provider-aws
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Authorization and Amazon Verified Permissions - A New Way to Manage Permissions Part XII: Terraform
If we check the support for the Terraform AWS Provider here (state for the date of publishing this article), we will see that the service is not yet fully supported. Last week, after more than half a year, support for creating a policy store was added. Additionally, we have the configuration to add template policies. However, the identity source is in the form of a PR draft, and there is no PR yet for the ability to create policies.
- 10 Ways for Kubernetes Declarative Configuration Management
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HashiCorp silently amend Terraform Registry TOS
https://github.com/hashicorp/terraform-provider-aws/issues/3...
The size is what you get when you add every single AWS Go client into one binary.
Each service client like 1-2MB. But when you have 200 services....
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A Cloud Development Troubleshooting Treasure Hunt
Well, at least we now have a promising lead. Some diligent googling and browsing through Github issues in the AWS provider project yielded no directly related findings. However, I did come across a few recent bug reports about the recent change AWS made regarding the treatment of public buckets. And interestingly, they described precisely the behavior I was encountering.
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Converting Full Terraform Programs to Pulumi
> We're coming up on 10000 resources in our main Terraform repository and while there is definitely some friction, it's overall much better than having to hit the cloud API's to gather each of those states which would probably take at least an order of magnitude longer.
I don't think that's necessary true. Most cloud API's actually can return hundreds of records with 1 API calls, e.g. https://docs.aws.amazon.com/elasticloadbalancing/latest/APIR... has a maximum page size of 400.
If I manage the cloud resources via some custom tools and/or with some ansible-fu, I can decide to batch the API calls when it makes sense.
With terraform, it is not possible to do so (https://github.com/hashicorp/terraform-plugin-sdk/issues/66, https://github.com/hashicorp/terraform-provider-aws/issues/2...).
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HEADS UP: Terraform AWS Provider 5.0.0
Release notes - https://github.com/hashicorp/terraform-provider-aws/releases/tag/v5.0.0
The only footgun I know of is changing the behavior of RDS instances created from snapshots. Force replacement on snapshot_identifier change for DB cluster resources will fuck up your world if you use a data source for snapshot_identifier since yesterday it would ignore any updates and today it will happily destroy your database (and, because AWS, all of the automated snapshots thereof) when the data identifier changes out from under it. 🎉
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Any tools out there, or better ways, to unit test IAM policy documents?
A while back I wrote a PR for the AWS provider to expose the policy simulator directly inside Terraform: https://github.com/hashicorp/terraform-provider-aws/pull/25569
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Weird warning after running pulumi preview
The reason you see that is because the AWS Classic provider (pulumi_aws) is built on top of the open-source terraform-provider-aws (via the Terraform bridge you identified), and terraform-provider-aws is emitting that notice at runtime. Not all Pulumi providers are built from Terraform providers, however, but some, like this one, still are. (There's a notice at the bottom of the page for each resource where this is the case.) It works like this:
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Script or software that automatically populate specific profile in ~/.aws/credentials
See: * https://github.com/hashicorp/terraform-provider-aws/issues/10491 * https://github.com/Sceptre/sceptre/issues/674
What are some alternatives?
crowdsec - CrowdSec - the open-source and participative security solution offering crowdsourced protection against malicious IPs and access to the most advanced real-world CTI.
Suricata - Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine developed by the OISF and the Suricata community.
Snort - Snort++
Denyhosts - Automated host blocking from SSH brute force attacks
OSSEC - OSSEC is an Open Source Host-based Intrusion Detection System that performs log analysis, file integrity checking, policy monitoring, rootkit detection, real-time alerting and active response.
pfSense - Main repository for pfSense
Wazuh - Wazuh - The Open Source Security Platform. Unified XDR and SIEM protection for endpoints and cloud workloads.
Nginx Proxy Manager - Docker container for managing Nginx proxy hosts with a simple, powerful interface
SpamAssassin - Read-only mirror of Apache SpamAssassin. Submit patches to https://bz.apache.org/SpamAssassin/. Do not send pull requests
maltrail - Malicious traffic detection system
crossplane - The Cloud Native Control Plane
terraform-provider-lastpass - Terraform Lastpass provider