Tag: Security
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How to Check the glibc Version In Fedora
Pre-Flight Check
- These instructions are intended specifically for checking the installed version of glibc.
- I’ll be working from a Liquid Web Self Managed Fedora 20 and Fedora 21 server, and I’ll be logged in as root.
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.
Updating glibc on Red Hat Linux or CentOS Linux is a very simple process. Most commonly you will use the following command in the case of a security vulnerability, or perhaps just to verify that you’re running the most up-to-date library:
- These instructions are intended specifically for checking the installed version of glibc.
- I’ll be working from a Liquid Web Core Managed CentOS 6 and CentOS 7 server, and I’ll be logged in as root.
Let’s do a quick preflight check to ensure we have everything we need to get started:
CVE-2014-9322 Vulnerability Info for Red Hat and CentOS
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.
Pre-Flight Check
- These instructions are intended specifically for stopping and disabling firewalld on Fedora 21.
- I’ll be working from a Liquid Web Self Managed Fedora 21 server, and I’ll be logged in as root.
How to Start and Enable Firewalld on Fedora 21
Pre-Flight Check
- These instructions are intended specifically for enabling and starting firewalld on Fedora 21.
- I’ll be working from a Liquid Web Self Managed Fedora 21 server, and I’ll be logged in as root.
- These instructions are intended specifically for stopping and disabling firewalld Fedora 20.
- I’ll be working from a Liquid Web Self Managed Fedora 20 server, and I’ll be logged in as root.
- These instructions are intended specifically for enabling and starting Firewalld Fedora 20.
- I’ll be working from a Liquid Web Self Managed Fedora 20 server, and I’ll be logged in as root.
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