Percona XtraBackup is an open-source hot backup utility for MySQL and Percona Server that performs physical backups without locking tables or interrupting active queries on InnoDB tables. Unlike mysqldump, which produces logical SQL dumps, XtraBackup copies InnoDB data files directly and replays the transaction log to bring the backup to a consistent state, making it […]
In this guide, we will discuss the basics of managing software packages with apt-get and apt-cache. The apt packaging tools provide a user-friendly interface to mange packages and their dependencies. A working knowledge of this tool is required to accomplish many tasks on an Ubuntu or Debian server.
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read • Source: SUSE advisory SUSE-SU-2013:1103-1 (see also SUSE bugzilla) Related CVEs: CVE-2013-2003 CVE-2017-16612 Upstream summary: Integer overflow in X.org libXcursor 1.1.13 and earlier allows X servers to trigger allocation of insufficient memory and a buffer overflow […]
Secrets management is one of the most commonly mishandled aspects of containerized applications. Embedding passwords, API keys, or tokens directly in a Dockerfile or committing them to a repository exposes credentials to anyone who can read the image history or the source tree. RHEL 8 gives you several layers of defense: environment variable files, Docker […]
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: Amazon Linux 2 📖 ~4 min read • Source: Amazon Linux advisory ALAS2-2023-2199 Related CVEs: CVE-2019-25051 Upstream summary: objstack in GNU Aspell 0.60.8 has a heap-based buffer overflow in acommon::ObjStack::dup_top (called from acommon::StringMap::add and acommon::Config::lookup_list). (CVE-2019-25051) Table of contents Symptom & Impact […]
FTP, short for File Transfer Protocol, is a network protocol that was once widely used for moving files between a client and server. It has since been replaced by faster, more secure, and more convenient ways of delivering files. Many casual Internet users expect to download…
🟠 High ⏱ 15–60 min Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read • Source: SUSE security advisory (see also SUSE bugzilla) Related CVEs: CVE-2010-4225 Upstream summary: Unspecified vulnerability in the mod_mono module for XSP in Mono 2.8.x before 2.8.2 allows remote attackers to obtain the source code for […]
Use Grafana and Zabbix to create a custom dashboard that displays data about your servers.
🟠 High ⏱ 15–60 min Last verified: 31 July 2019 Affected versions: Oracle Linux 8 📖 ~4 min read • Source: ELSA advisory ELSA-2019-2925 Related CVEs: CVE-2019-9517 CVE-2019-9518 CVE-2019-9511 CVE-2019-9516 CVE-2019-9513 CVE-2019-9514 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]
The mdadm utility can be used to create and manage storage arrays using Linux’s software RAID capabilities. Administrators have great flexibility in coordinating their individual storage devices and creating logical storage devices that have greater performance or…
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