Let’s Encrypt is a Certificate Authority (CA) that provides an easy way to obtain and install free TLS/SSL certificates, thereby enabling encrypted HTTPS on web servers. In this tutorial, you will use Certbot to obtain a free SSL certificate for Apache on Debian 9 and set up your certificate to renew automatically.
🟢 Low ⏱ 5–15 min Last verified: 25 May 2026 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read • Source: Ubuntu Security Notice USN-7700-1 Related CVEs: CVE-2023-4039 Upstream summary: It was discovered that the -fstack-protector hardening feature in GCC for AArch64 did not properly protect dynamically-sized local variables such as those created using […]
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read • Source: Ubuntu Security Notice USN-6629-2 Related CVEs: CVE-2021-45958 CVE-2022-31116 CVE-2022-31117 Upstream summary: USN-6629-1 fixed vulnerabilities in UltraJSON. This update provides the corresponding updates for Ubuntu 20.04 LTS. Original advisory details: It was discovered that […]
🟠 High ⏱ 15–60 min Last verified: 25 May 2026 Affected versions: Oracle Linux 8 📖 ~4 min read • Source: ELSA advisory ELSA-2023-12121 Related CVEs: CVE-2022-42896 CVE-2022-4139 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & […]
Uma parte importante do gerenciamento da configuração e infraestrutura de servidores inclui a manutenção de maneira fácil de verificar as interfaces de rede e endereços IP por nome, através da configuração de um Sistema de Nome de Domínio (DNS). Ao usar os nomes de domínio…
Overview: Using Terraform with Azure and AWS from Windows Server 2022 Windows Server 2022 is frequently used as a CI/CD build agent, jump host, or automation server in enterprise environments. Terraform running on Windows Server 2022 can provision resources in both Microsoft Azure and Amazon Web Services (AWS) using the same HCL configuration workflow. This […]
Um dos métodos mais populares para realizar iterações em conjuntos de dados em JavaScript é o método `.map()`. O `.map()` cria uma matriz depois de chamar uma função específica em cada item na matriz mãe. O `.map()` é um método de não mutação que cria uma nova matriz ao invés de alterar a original. Neste tutorial, vamos analisar quatro usos dignos de atenção do `.map()` em JavaScript: chamar uma função de elementos de matriz, converter strings em matrizes, renderizar listas em bibliotecas e refo
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 0.23.93-r0 📖 ~4 min read • Source: Alpine secdb entry — zbar 0.23.93-r0 Related CVEs: CVE-2023-40889 CVE-2023-40890 Upstream summary: Alpine community repository for vedge ships zbar 0.23.93-r0 which addresses CVE-2023-40889. Table of contents Symptom & Impact […]
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: Oracle Linux 9 📖 ~4 min read • Source: ELSA advisory ELSA-2022-6590 Related CVEs: CVE-2022-21444 CVE-2022-21534 CVE-2022-21478 CVE-2022-21556 CVE-2022-21547 CVE-2022-21435 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read • Source: SUSE advisory SUSE-CU-2023:3924-1 (see also SUSE bugzilla) Related CVEs: CVE-2023-46316 Upstream summary: In buc Traceroute 2.0.12 through 2.1.2 before 2.1.3, the wrapper scripts do not properly parse command lines. Table of contents Symptom & […]
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