Tag : Update

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Upgrading MariaDB 10.0 to 10.3.9 on Ubuntu 16.04

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MariaDB is quickly becoming the de facto open-source database software to use in development, production, and even enterprise environments. Our very own Cloud Sites product uses the newest in MariaDB as it’s mostly known for being a fork and drop-in replacement to MySQL, which is created and maintained by the......
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DNF (Dandified Yum) Command Examples: Install, Remove, Upgrade, and Downgrade

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DNF (Dandified Yum) 101: Basic Package Manager Interaction I. What is DNF (Dandified Yum)? II. DNF Examples: Install, Remove, Upgrade, and Downgrade Install a Package Syntax: dnf install <package> Install a Single Package – Example: dnf install mysql-server Where mysql-server is the package name. Install Multiple Packages – Example: dnf......
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Update and Patch OpenSSL on Ubuntu for the CCS Injection Vulnerability

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What is OpenSSL? OpenSSL is a common cryptographic library which provides encryption, specifically SSL/TLS, for popular applications such as Apache (web), MySQL (database), e-mail, virtual private networks (VPNs), and more. What is “the CCS Injection Vulnerability”? The ChangeCipherSpec (CCS) Injection Vulnerability is a moderately severe vulnerability in OpenSSL, known formally......
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Information on CVE-2014-9322 Vulnerability for Red Hat and CentOS

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A vulnerability found in the Linux kernel, specifically a flaw in fault handling associated with the Stack Segment (SS), allows an unprivileged user to potentially gain privileges. CentOS 4, CentOS 5, CentOS 6, and CentOS 7 are potentially affected, thus we want to highlight the following information. To verify your......
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Update and Patch OpenSSL on CentOS for the CCS Injection Vulnerability

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What is OpenSSL? OpenSSL is a common cryptographic library which provides encryption, specifically SSL/TLS, for popular applications such as Apache (web), MySQL (database), e-mail, virtual private networks (VPNs), and more. What is “the CCS Injection Vulnerability”? The ChangeCipherSpec (CCS) Injection Vulnerability is a moderately severe vulnerability in OpenSSL, known formally......
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Information on CVE-2014-6271 and CVE-2014-7169 Bash Vulnerabilities (Shell Shock)

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On September 24th, a vulnerability was reported in the GNU Bourne-Again-Shell (BASh, or Bash), specifically a flaw with how Bash processes values of environment variables, that allows remote code execution of varying types in many common configurations. The overall risk is severe due to bash being configured for use, by......
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Information on CVE-2015-0235 (GHOST) Vulnerability for Red Hat and CentOS

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A vulnerability found in the glibc library, specifically a flaw affecting the gethostbyname() and gethostbyname2() function calls, that allows a remote attacker to potentially execute arbitrary code. CentOS 5, CentOS 6, and CentOS 7 are potentially affected, thus we want to highlight the following information. sxi.io Web package repositories have......
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How to Update Bash on Fedora 20 and Fedora 21

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Note: Please note that this article is considered legacy documentation because Fedora 20 and 21 has reached its end-of-life support. Pre-Flight Check These instructions are intended specifically for updating Bash on Fedora 20 and Fedora 21. I’ll be working from both a sxi.io Web Self Managed Fedora 20 server and......
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Information on CVE-2014-0196 Vulnerability for CentOS and Ubuntu

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A vulnerability found in the Linux kernel, specifically a flaw with the pseudo tty (pty) device, allows an unprivileged user to cause a denial of service (system crash) or potentially gain administrator privileges. A small number of CentOS and Ubuntu versions are vulnerable, thus we want to highlight the following......
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MySQL Performance: Converting MySQL to MariaDB

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MySQL Performance MySQL Performance: Identifying Long Queries MySQL Performance: MyISAM vs InnoDB MySQL Performance: How To Leverage MySQL Database Indexing MySQL Performance: MySQL vs. MariaDB MySQL Performance: Converting MySQL to MariaDB MySQL Performance: System Configuration File & Routine Maintenance MySQL Performance: InnoDB Buffers & Directives MySQL Performance: MyISAM As we......
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Information on CVE-2015-3456 QEMU Vulnerability (VENOM)

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Overview VENOM, or Virtualized Environment Neglected Operations Manipulation, was made public on May 13, 2015. The vulnerability is in QEMU, a generic and open source machine emulator and virtualizer that is utilized by Xen, KVM, and other modern hypervisors / virtualization platforms. Impact Specifically a flaw with how QEMU handles......
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Remove Permissions for a MySQL User on Linux via Command Line

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MySQL via Command Line 102: Basic User Interaction Create a MySQL User on Linux via Command Line Grant Permissions to a MySQL User on Linux via Command Line Remove Permissions for a MySQL User on Linux via Command Line Remove a MySQL User on Linux via Command Line Previous Series:MySQL......
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Grant Permissions to a MySQL User on Linux via Command Line

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MySQL via Command Line 102: Basic User Interaction Create a MySQL User on Linux via Command Line Grant Permissions to a MySQL User on Linux via Command Line Remove Permissions for a MySQL User on Linux via Command Line Remove a MySQL User on Linux via Command Line Previous Series:......