O Ubuntu está para tentar novamente na mudança do IPTables para usar o back-end do Nftables

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Critical Linux Kernel Vulnerability CVE-2023-32233: Privilege Escalation Risk in Ubuntu Systems

 

Critical Linux kernel vulnerability CVE-2023-32233 exposes Ubuntu 18.04+/cloud systems to privilege escalation & DoS attacks. Learn patching steps, mitigation strategies, and kernel security best practices.

A Netfilter lança o Nftables 1.0

 

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O Fedora 32 está olhando para mudar o Firewalld do Iptables para o Nftables

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Urgent Security Patch: Analyzing and Mitigating CVE-2024-26924 in Ubuntu Linux Kernels

 

Critical Linux kernel vulnerability (CVE-2024-26924) patched by Ubuntu. This zero-day flaw in the netfilter subsystem allows local privilege escalation, posing a severe security risk. Learn the impacted kernels, immediate mitigation steps, and best practices for enterprise Linux server hardening.

Deprecated Linux Commands You Should Stop Using (And Modern Alternatives)

 

Discover deprecated Linux commands (like scp, ifconfig, netstat) and their modern, secure alternatives. Learn why enterprises are switching to tools like rsync, ss, and nftables—plus how to future-proof your workflow. Essential for sysadmins and DevOps professionals.

Optimized Systemd 258-RC2 Release Analysis: Boosting Container Security & Network Scalability

 

Systemd 258-RC2 boosts Linux container security with BPF delegation & scales DNS for complex clouds. Learn critical updates on iptables deprecation, networkd changes & enterprise impact. Optimize your infrastructure now.

Ubuntu Kernel Security Patch: Mitigating the Netfilter nf_tables DDoS Vulnerability (CVE-2024-26921)

 

Critical Linux kernel vulnerability (CVE-2024-26921) patched in Ubuntu. This flaw in the Netfilter subsystem posed a significant denial-of-service (DDoS) risk. Our analysis covers the security patch, exploit mechanisms, and essential system hardening steps for Ubuntu servers to prevent kernel-level threats.

O Debian 11 está para descontinuar ainda mais o IPTables em favor do Nftables Plus Promovendo o Firewall

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Critical Linux Kernel Vulnerability Patched: Mitigating CVE-2024-26917 Netfilter Flaw

 

Critical Linux kernel vulnerability CVE-2024-26917 patched in Ubuntu. This detailed advisory explains the netfilter heap-out-of-bounds write flaw, its high-security impact, and provides step-by-step mitigation instructions for system administrators to secure enterprise servers and cloud infrastructure.

O openSUSE Tumbleweed agora é alimentado pelo kernel Linux 4.18, introduz o suporte a AV1 Search...

O Mozilla Firefox 61.0.2, FFmpeg 4.0.2 e Xen 4.11 também desembarcou.

O Firewall Linux baseado em BPF "bpfilter" mostra potencial de desempenho impressionante

 

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Atualização de segurança do SUSE para o sles-15-sp2-chost-byos-v20210405 aviso SUSE: 2021: 430-1

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Stop Rushing to Patch Every libarchive Alert: A Repeatable Security Playbook

 

Stop worrying about libarchive zero-days. Learn to check, patch, and mitigate CVE-2026-4424 & CVE-2026-5121 on Rocky Linux, Ubuntu & SUSE with actual commands. Includes automation script & AppArmor/i​ptables workarounds. Future‑proof your archive parsing now. (198 chars)

Atualização de segurança do SUSE para o suse-sles-15-sp2-chost-byos-v20210405-hvm-ssd-x86_64m aviso SUSE: 2021: 429-1

 

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strongSwan no SUSE: da Correção Urgente à Segurança Duradoura para sua VPN IPsec

 

Aprenda a identificar, corrigir e mitigar a vulnerabilidade double‑free no strongSwan (CVE‑2026‑47895) em distribuições SUSE. Comandos práticos, script de automação, mitigação com firewall e recomendações de leitura para aprofundar seus conhecimentos em segurança de redes.

Critical Linux Kernel Patch for Fedora 41: Securing Against CVE-2024-26914 Network Flaws

 

Critical Linux kernel vulnerability (CVE-2024-26914) patched in Fedora 41. This guide details the security flaw, its impact on system stability, and provides step-by-step instructions for applying the update to prevent crashes and potential privilege escalation. Secure your Fedora workstation or server now.

Atualização de segurança do SUSE para o sles-15-sp1-chost-byos-v20210304, aviso SUSE: 2021: 413-1

 

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Guia definitivo de segurança para kernel Linux: verificação, automação e mitigação (Debian/Ubuntu)

 

Vulnerabilidade no kernel? Use este guia eterno: comandos para verificar no Debian, script de automação, mitigação sem reboot (iptables, AppArmor, modulejail) e livro recomendado. 

From Zero to Root in 732 Bytes: The “Copy Fail” Vulnerability (CVE‑2026‑31431) and How to Lock Down Your Ubuntu Servers Right Now

 

Patched but still worried about CVE-2026-31431 (Copy Fail)? This guide explains the algif_aead bug, shows how to test your Ubuntu systems with concrete commands, provides a production-ready bash automation script, and offers AppArmor/iptables alternatives. 

Stay safe for years with this canonical, high‑value resource.