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Executive summary Phusion Passenger is an app server that supports Ruby. We have released version 5 beta 1, codename “Raptor”. This new version is much faster, helps you better identify and solve problems, and has a ton of other improvements. If you’ve followed the Raptor campaign then you may wonder why we held the campaign like this. Read on if you’re interested. If you just want to try it, scro
On 24 September 2014, an important security vulnerability for Bash was published. This vulnerability, dubbed “Shellshock” and with identifiers CVE-2014-6271 and CVE-2014-7169, allows remote code execution. This vulnerability is not caused by Phusion Passenger, but does affect Phusion Passenger. We strongly advise users to upgrade their systems as soon as possible. Please note that while CVE-2014-6
Phusion Passenger now supports the new Ruby 2.1 Out-Of-Band GC Phusion Passenger is a fast and robust web server and application server for Ruby, Python, Node.js and Meteor. Passenger takes a lot of complexity out of deploying web apps, and adds powerful enterprise-grade features that are useful in production. High-profile companies such as Apple, New York Times, AirBnB, Juniper, American Express,
We heavily utilize Vagrant in our development workflow. Vagrant is a tool for easily setting up virtual machines as development environments, making it easy to distribute development environments and making them reconstructible and resetable. It has proven to be an indispensable tool when working in development teams with more than 1 person, especially when not everybody uses the same operating sy
Phusion Passenger is software that deploys Ruby and Python web apps, by integrating into Apache and Nginx and turning them into a fully-featured application server. It is very fast, stable and robust and thus used by the likes of New York Times, AirBnB, Symantec, Pixar, etc. It comes with many features that make your life easier and your application perform better. “Flying Passenger” is a technolo
Phusion Passenger is software that deploys Ruby and Python web apps, by integrating into Apache and Nginx and turning them into a fully-featured application server. It is very fast, stable and robust and thus used by the likes of New York Times, AirBnB, Symantec, Pixar, etc. It comes with many features that makes your life easier and your application perform better. After a period of being in beta
Update February 2015: this blog post has been superseded by the Server Optimization Guide. Please read that guide instead. Phusion Passenger turns Apache and Nginx into a full-featured application server for Ruby and Python web apps. It has a strong focus on ease of use, stability and performance. Phusion Passenger is built on top of tried-and-true, battle-hardened Unix technologies, yet at the sa
Yesterday saw the release of Rack 1.5.0, which adds a new feature to the Rack specification dubbed socket hijacking. This feature allows applications to take over the client socket and perform arbitrary operations on it, e.g. implementing WebSockets, streaming data to the client, etc. Did Rack not support streaming? Actually yes it did, you can do it by returning a body object that outputs body ch
Phusion Passenger is an Apache and Nginx module for deploying Ruby and Python web applications. It has a strong focus on ease of use, stability and performance. Phusion Passenger is built on top of tried-and-true, battle-hardened Unix technologies, yet at the same time introduces innovations not found in most traditional Unix servers. Since mid-2012, it aims to be the ultimate polyglot application
The recent Rails SQL injection vulnerability sparked very large discussions. One of the discussion threads in particular caught my attention. In one of the exploitable scenarios, the attacker must know the session secret key. This is not so problematic for proprietary apps where the session secret is kept hidden, but is problematic for many open source Rails apps because the session secret is stor
Update: see also the article Securing the Rails session secret. Update 2: a statement from Michael Koziarski of the Rails security team regarding the severity of this bug has been added. He urges people to upgrade immediately. Please scroll to the “Conclusion” section for details. Update 3: new advisories (CVE-2013-0155 and CVE-2013-0156) have been published. These vulnerabilities are unrelated to
A few days ago, NIST announced the winner of the SHA-3 competition: Keccak (prounced [kɛtʃak], ketchak). The researchers who authored Keccak released a reference implementation in C. We’ve created Ruby and Node.js extensions for Keccak. Our extensions utilize the code from the official reference implementation and come with a extensive suite of unit tests. But note however that I do not claim to b
Those who administer production Unix systems have undoubtedly encountered the problem of frozen processes before. They just sit around, consuming CPU and/or memory indefinitely until you forcefully shut them down. Phusion Passenger 3 – our high-performance and advanced web application server – was not completely immune to this problem either. That is until today, because we have just implemented a
TLDR: Rails Live Streaming allows Rails to compete with Node.js in the streaming arena. Streaming requires application servers to support either multi-threaded or evented I/O. Most Ruby application servers are not up for the job. Phusion Passenger Enterprise 4.0 (a Ruby app server) is to become hybrid multi-processed, multi-threaded and evented. This allows seamless support for streaming, provides
Phusion Passenger is an Apache and Nginx module for deploying Ruby web applications. It has a strong focus on ease of use, stability and performance. Phusion Passenger is built on top of tried-and-true, battle-hardened Unix technologies, yet at the same time introduces innovations not found in most traditional Unix servers. In our last Phusion Passenger sneak preview article we described a number
We host many git repositories on our servers using SSH and file system ACLs for access control. However, having been spoiled by Github for so long, this method feels archaic and cumbersome. While Github provides private repositories, sometimes it’s just not an option because there are some things that may never leave the organization. If you still want to have a fancy web interface for your Git re
We’ve been working on Phusion Passenger 3.2 on local repositories for a while now. Today we just pushed this code to Github. You can find it in the experimental branch. Despite the relatively minor version bump, Phusion Passenger 3.2 has actually received a major internal overhaul. This is because our version number growth rate is based on the quantity of user-visible improvements, not internal (t
Update: Ruby Enterprise Edition has officially reached End-of-Life in 2012. What is Ruby Enterprise Edition? Ruby Enterprise Edition (REE) is a server-oriented distribution of the official Ruby interpreter, and includes various additional enhancements, such as: A “copy-on-write friendly” garbage collector, capable of reducing Ruby on Rails applications’ memory usage by 33% on average. The tcmalloc
You may have heard of LLVM, a compiler infrastructure library. You may have heard of GCC, the GNU C and C++ compiler. Those two are completely separate software products, but there exists llvm-gcc which is a GCC frontend that utilizes LLVM. All OS X versions <= Snow Leopard originally shipped with regular gcc, but as of Xcode 4 (which is also the default on OS X Lion) Apple has switched to llvm-gc
Phusion Passenger is an Apache and Nginx module for deploying Ruby web applications. It has a strong focus on ease of use, stability and performance. Phusion Passenger is built on top of tried-and-true, battle-hardened Unix technologies, yet at the same time introduces innovations not found in most traditional Unix servers. Since version 3.0 it can also run standalone without an external web serve
Web application monitoring: easy, high quality, detailed and low overhead We are pleased to announce Union Station, our state-of-the-art web application performance monitoring and behavior analysis service. It aids web application developers by helping them to understand their web application’s behavior and identifying bottleneck and problems. It aids system administrators by notifying them of pot
What is Ruby Enterprise Edition? Ruby Enterprise Edition (REE) is a server-oriented distribution of the official Ruby interpreter, and includes various additional enhancements, such as: A “copy-on-write friendly” garbage collector, capable of reducing Ruby on Rails applications’ memory usage by 33% on average. The tcmalloc memory allocator, which lowers overall memory usage and boosts memory alloc
We are pleased to announce native Linux packages for RedHat/Fedora derived RPM distributions, including RHEL, Fedora, CentOS, and ScientificLinux. Installation and updates can be accomplished via yum, and the passenger-release package includes all of the necessary yum configuration. Installation The easiest way to install Phusion Passenger and keep it up to date is to install the passenger-release
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