# rhel 9

Red Hat Enterprise Linux 9 (RHEL 9) is a Linux-based operating system release for developing and deploying applications across physical infrastructure, virtual machines, containers, edge, and cloud environments.

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## Configurar Fail2Ban para proteger servicios

DevFeed: [Configurar Fail2Ban para proteger servicios](<https://devfeed.tech/articles/configurar-fail2ban-para-proteger-servicios-34051.md>)

Original publisher: [Read original article](<https://tengoping.com/blog/configurar-fail2ban-proteger-servicios/>)

Author: Antonio Pérez

Published: 2026-01-28T00:00:00Z

Content type: tutorial

Language: es

Sources: [tengoping.com](<https://devfeed.tech/sources/tengoping-com.md>)

Topics: [Fail2ban](<https://devfeed.tech/topics/fail2ban.md>), [OpenSSH](<https://devfeed.tech/topics/openssh.md>), [nginx](<https://devfeed.tech/topics/nginx.md>), [Debian](<https://devfeed.tech/topics/debian.md>), [Ubuntu](<https://devfeed.tech/topics/ubuntu.md>), [rhel 9](<https://devfeed.tech/topics/rhel-9.md>)

Tags: [debian](<https://devfeed.tech/tags/debian.md>), [error](<https://devfeed.tech/tags/error.md>), [fail2ban](<https://devfeed.tech/tags/fail2ban.md>), [internet](<https://devfeed.tech/tags/internet.md>), [ip](<https://devfeed.tech/tags/ip.md>), [login](<https://devfeed.tech/tags/login.md>), [logs](<https://devfeed.tech/tags/logs.md>), [nginx](<https://devfeed.tech/tags/nginx.md>), [rhel](<https://devfeed.tech/tags/rhel.md>), [rhel-9](<https://devfeed.tech/tags/rhel-9.md>), [ssh](<https://devfeed.tech/tags/ssh.md>), [ubuntu](<https://devfeed.tech/tags/ubuntu.md>)

### AI overview

A practical guide to installing and configuring Fail2Ban to protect SSH, Nginx, and other services from brute-force attacks. It covers jail configuration, custom Nginx filters, nftables and iptables actions, status checks, and manually unbanning IP addresses.

### Source excerpt

Guía práctica para instalar y configurar Fail2Ban: protege SSH, Nginx y otros servicios contra ataques de fuerza bruta.

## Blog: Introducing Falco 0.38.2

DevFeed: [Blog: Introducing Falco 0.38.2](<https://devfeed.tech/articles/blog-introducing-falco-0-38-2-32486.md>)

Original publisher: [Read original article](<https://falco.org/blog/falco-0-38-2/>)

Published: 2024-08-19T00:00:00Z

Content type: release

Language: en

Sources: [Falco - Falco](<https://devfeed.tech/sources/falco-falco.md>), [Falco - The Falco blog](<https://devfeed.tech/sources/falco-the-falco-blog.md>)

Topics: [bug](<https://devfeed.tech/topics/bug.md>), [Linux](<https://devfeed.tech/topics/linux.md>), [rhel 9](<https://devfeed.tech/topics/rhel-9.md>), [Prometheus](<https://devfeed.tech/topics/prometheus.md>), [Docker](<https://devfeed.tech/topics/docker.md>), [container images](<https://devfeed.tech/topics/container-images.md>)

Tags: [bugfixes](<https://devfeed.tech/tags/bugfixes.md>), [container-images](<https://devfeed.tech/tags/container-images.md>), [docker](<https://devfeed.tech/tags/docker.md>), [falco](<https://devfeed.tech/tags/falco.md>), [linux](<https://devfeed.tech/tags/linux.md>), [prometheus](<https://devfeed.tech/tags/prometheus.md>), [release](<https://devfeed.tech/tags/release.md>), [rhel-9](<https://devfeed.tech/tags/rhel-9.md>)

### AI overview

Falco 0.38.2 is a patch release that fixes crashes, networking comparison bugs, missing flags, Linux 6.10 kernel module build issues, and possible kernel module crashes on RHEL 9. It also adds troubleshooting logs and changes experimental Prometheus metric labels to support groupBy queries.

### Source excerpt

Today we announce the release of Falco 0.38.2 🦅! Fixes Falco's 0.38.2 is a patch release that includes the most important bugfixes addressed this summer ☀: Fixed a crash when using transformer operators (e.g. tolower()) with a parameter that evaluates to an empty string Fixed a bug and a regression that could result in incorrect comparison between ipv4 addresses and ipv6 subnets and vice versa Fixed an issue that could result in missing exe_upper_layer flag Fixed kernel module build for Linux 6.10 Fixed a bug that may result in kernel module crashes on recent versions of RHEL 9 Added additional logging to better troubleshoot hard to reproduce issues like "could not parse param ... for event ... of type ...: expected length X, found Y" This patch also introduces a small change with the format of the new experimental Prometheus metrics to make them easier to use. Metrics are now distinguished by the file_name or rule_name labels, in line with Prometheus best practices and supporting groupBy queries. Thanks to everyone in the community for helping us with spotting these annoying bugs and improving Falco every day 🐛! You make Falco successful 🦅! Thanks as always to the Falco maintainers for their support and effort during the entire release process. Try it! 🏎 As usual, in case you just want to try out the stable Falco 0.38.2, you can install its packages following the process outlined in the docs: CentOS/Amazon Linux Debian/Ubuntu openSUSE Linux binary package Prefer to use a container image? No problem at all! 🐳 You can read more about running Falco with Docker in the docs. You can also find the Falcosecurity container images on the public AWS ECR gallery: falco falco-no-driver falco-driver-loader Let's meet 🤝 We meet every Wednesday in our community calls, if you want to know the latest and the greatest you should join us there! If you have any questions Join the #falco channel on the Kubernetes Slack Join the Falco mailing list Thanks to all the amazing contributor