Smart and Efficient Byte-Range Caching with NGINX & NGINX Plus

2016-01-22 KENNETH 0

When correctly deployed, caching is one of the quickest ways to accelerate web content. Not only does caching place content closer to the end user (thus reducing latency), it also reduces the number of requests to the upstream origin server, resulting in greater capacity and lower bandwidth costs. The availability of globally-distributed cloud platforms like AWS and DNS-based global load balancing systems such as Route53 make it possible to create your own global content delivery network (CDN). In this article, we’ll look at how NGINX can cache and deliver traffic that is accessed using byte-range requests. A common use case is HTML5 MP4 video, where requests use byte ranges to implement trick-play (skip and seek) video. Our goal is to implement a caching solution for video delivery that minimizes user latency and upstream network traffic. Our Test Framework We need [ more… ]

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Simplified SSL/TLS Setup for MySQL Community

2016-01-22 KENNETH 0

Transport Layer Security (TLS, also often referred to as SSL) is an important component of a secure MySQL deployment, but the complexities of properly generating the necessary key material and configuring the server dissuaded many users from completing this task.  MySQL Server 5.7 simplifies this task for both Enterprise and Community users. … Source: mysqlserverteam.com

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USN-2878-1: Perl vulnerability

2016-01-22 KENNETH 0

Ubuntu Security Notice USN-2878-1 21st January, 2016 perl vulnerability A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 15.10 Ubuntu 15.04 Summary Perl incorrectly handled the taint attribute. Software description perl – Practical Extraction and Report Language Details David Golden discovered that the canonpath function in the Perl File::Specmodule did not properly preserve the taint attribute. An attacker couldpossibly use this issue to bypass the taint protection mechanism. Update instructions The problem can be corrected by updating your system to the following package version: Ubuntu 15.10: perl 5.20.2-6ubuntu0.1 Ubuntu 15.04: perl 5.20.2-2ubuntu0.1 To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades. In general, a standard system update will make all the necessary changes. References CVE-2015-8607 Source: ubuntu-usn

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USN-2879-1: rsync vulnerability

2016-01-22 KENNETH 0

Ubuntu Security Notice USN-2879-1 21st January, 2016 rsync vulnerability A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 15.10 Ubuntu 15.04 Ubuntu 14.04 LTS Ubuntu 12.04 LTS Summary rsync could be made to write files outside of the expected directory. Software description rsync – fast, versatile, remote (and local) file-copying tool Details It was discovered that rsync incorrectly handled invalid filenames. Amalicious server could use this issue to write files outside of theintended destination directory. Update instructions The problem can be corrected by updating your system to the following package version: Ubuntu 15.10: rsync 3.1.1-3ubuntu0.15.10.1 Ubuntu 15.04: rsync 3.1.1-3ubuntu0.15.04.1 Ubuntu 14.04 LTS: rsync 3.1.0-2ubuntu0.2 Ubuntu 12.04 LTS: rsync 3.0.9-1ubuntu1.1 To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades. In general, a standard system update will make all the necessary changes. References CVE-2014-9512 Source: ubuntu-usn

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RHSA-2016:0061-1: Moderate: httpd and httpd22 security update

2016-01-22 KENNETH 0

Red Hat Enterprise Linux: Updated httpd and httpd22 packages that fix two security issues are now available for Red Hat JBoss Web Server 2.1.0 for Red Hat Enterprise Linux 5, 6, and 7. Red Hat Product Security has rated this update as having Moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available from the CVE links in the References section. CVE-2013-5704, CVE-2015-3183 Source: rhn-errata