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The Netbsd Project
The NetBSD Project Introducción a NetBSD Julio M. Merino Vidal <[email protected]> iParty 8 22 de abril de 2006 Contenido NetBSD vs. Linux. Un poco de historia. Objetivos. Política de versiones. pkgsrc. Cómo obtener NetBSD. Dónde obtener ayuda. Cómo reportar fallos. NetBSD vs. GNU/Linux Sistema completo. Núcleo = Linux. Basado en 4.4BSD. Aplicaciones de GNU. Licencia BSD. Escrito desde cero. Licencia GPL. Un poco de historia (1/4) Fork de 4.3BSD Networking/2: 386BSD. Motivo: Frustración en la integración de parches. Un poco de historia (2/4) 386BSD deriva en: NetBSD (portabilidad) FreeBSD (i386) Primera versión: NetBSD 0.8 20 de abril de 1993 Un poco de historia (3/4) Integración de las mejoras en 4.4BSD (Lite). NetBSD 1.0 ve la luz 26 de octubre de 1994. Un poco de historia (4/4) Últimas versiones: NetBSD 2.0.3, 31 de octubre de 2005. NetBSD 2.1, 2 de noviembre de 2005. NetBSD 3.0, 23 de diciembre de 2005. Objetivos (1/5) Diseño correcto: Posiblemente el objetivo más importante. Ejemplo: abstracción del acceso al bus del sistema. “It doesn't work unless it's right”. Completitud del sistema: Protocolos de red. Utilidades de desarrollo. Sistema de paquetes. Objetivos (2/5) Estabilidad: Sistema usado en producción. Rapidez: Plataformas antiguas vs. nuevas. Micro vs. macro-optimizaciones. Objetivos (3/5) Libre distribución: Uso de la licencia BSD. Algunas herramientas añadidas son GPL. Transportable: División MI/MD. Ejemplo: fxp(4) funciona sobre alpha, i386, macppc, etc. 40 arquitecturas soportadas. Objetivos (4/5) Interoperable: Emulación binaria: Linux, FreeBSD, Solaris, etc. -
The Design of the Openbsd Cryptographic Framework
The Design of the OpenBSD Cryptographic Framework Angelos D. Keromytis Jason L. Wright Theo de Raadt Columbia University OpenBSD Project OpenBSD Project [email protected] [email protected] [email protected] Abstract the design of these systems is intended to impede sim- ple, brute-force, computational attacks. This complexity drives the belief that strong security is fundamentally in- Cryptographic transformations are a fundamental build- imical to good performance. ing block in many security applications and protocols. To improve performance, several vendors market hard- This belief has led to the common predilection to avoid ware accelerator cards. However, until now no operating cryptography in favor of performance [22]. However, system provided a mechanism that allowed both uniform the foundation for this belief is often software imple- and efficient use of this new type of resource. mentation [8] of algorithms intended for efficient hard- ware implementation. To address this issue, vendors We present the OpenBSD Cryptographic Framework have been marketing hardware cryptographic acceler- (OCF), a service virtualization layer implemented in- ators that implement several cryptographic algorithms side the kernel, that provides uniform access to accel- used by security protocols and applications. However, erator functionality by hiding card-specific details be- modern operating systems lack the necessary support hind a carefully-designed API. We evaluate the impact to provide efficient access to such functionality to ap- of the OCF in a variety of benchmarks, measuring over- plications and the operating system itself through a all system performance, application throughput and la- uniform API that abstracts away device details. As tency, and aggregate throughput when multiple applica- a result, accelerators are often used directly through tions make use of it. -
Free and Open Source Software - a Feasibility Study
2003:8a Free and Open Source Software - a feasibility study Appendix 1: Extensive survey This publication is available from: The Swedish Agency for Public Management Publication Service Box 2280 SE-103 17 Stockholm Phone +46 8 454 46 43 Fax +46 8 454 46 45 E-mail: [email protected] www.statskontoret.se STATSKONTORET ISBN: 91-7220-526-1 Redners tryckeri, 2003 Content 1 INTRODUCTION................................................................................................... 7 1.1 FREE SOFTWARE AND OPEN SOURCE SOFTWARE................................................. 7 1.2 SHORT BACKGROUND......................................................................................... 7 1.3 CONCEPTS .......................................................................................................... 9 1.4 LICENSES ......................................................................................................... 15 1.5 DEVELOPMENT AND MAINTENANCE ................................................................. 18 2 TECHNOLOGY FORECASTING ..................................................................... 23 2.1 CURRENT SITUATION WITHIN THE EUROPEAN UNION....................................... 23 2.2 EUROPEAN INITIATIVES – EXAMPLES ............................................................... 26 2.3 INTERNATIONAL INITIATIVES – EXAMPLES....................................................... 32 3 PRESENT SITUATION – PUBLIC ADMINISTRATION IN SWEDEN ...................................................................................................................... -
Modernizing Netbsd Networking Facilities and Interrupt Handling
Modernizing NetBSD Networking Facilities and Interrupt Handling Ryota Ozaki Kengo Nakahara [email protected] [email protected] Internet Initiative Japan Inc. Internet Initiative Japan Inc. Abstract This paper is organized as follows. Section 2 describes the current status of network processing in NetBSD. Sec- Networking facilities of NetBSD still have a lot of room tion 3 describes how to make networking facilities MP- for improvement, especially the scalability of its network safe; we pick vioif and bridge to explain that in de- processing is one of big issues that we have to address. tail. Section 4 and Section 5 describe how we support We have been working on making the network stack and hardware mentioned above in NetBSD. Section 6 reports network device drivers MP-safe to run NetBSD network- the results of preliminary performance evaluations on our ing facilities run in parallel. Supporting MSI/MSI-X and implementation. At last, Section 7 concludes the paper. multi-queue (with interrupt affinity) features of network devices in NetBSD device drivers is also an important task towards the goal. 2 Current Status of Network Processing This paper describes the current status of NetBSD net- working facilities and our recent work to improve them. In this section, we describe the current status of network The paper also reports the results of preliminary evalu- processing of NetBSD, including how the network facil- ations on our implementation and shows that our imple- ities of NetBSD work on multi-core systems, how tra- mentation scales up well on a multi-core system. -
Quality of the Open Source Software
Master Thesis Computer Science Thesis no: MCS-2008:29 August 2008 Quality of the Open Source Software Muhammad Tahir Aleem Tariq Department of Interaction and System Design School of Engineering Blekinge Institute of Technology Box 520 SE – 372 25 Ronneby Sweden This thesis is submitted to the Department of Interaction and System Design, School of Engineering at Blekinge Institute of Technology in partial fulfillment of the requirements for the degree of Master of Science in Computer Science. The thesis is equivalent to XXX weeks of full time studies. Contact Information: Author(s): Muhammad Tahir E-mail: [email protected] Aleem Tariq E-mail: [email protected] University advisor: Dr. Mia Persson Department of Internet : www.bth.se/tek Interaction and System Design Phone : +46 457 38 50 00 Blekinge Institute of Technology Fax : + 46 457 102 45 Box 520 ii SE – 372 25 Ronneby Sweden ABSTRACT Quality and security of software are key factors in the software development. This thesis deals with the quality of open source software (OSS for short) and different questions that are related with open source and close source software has discussed in the thesis proposal. Open source software is a process by which we can produce cheap and qualitative software and its source could be re-use in the development of the software. Close source software is more expensive than open source software and we can not re-use its source code, so there should be a way by which cheap and qualitative software should be produced. This thesis describes that how the quality of the open source software can be evaluated and increased. -
Firewalling with Openbsd's PF Packet Filter
Firewalling with OpenBSD’s PF packet filter Peter N. M. Hansteen [email protected] Copyright © 2005 - 2012 Peter N. M. Hansteen This document is © Copyright 2005 - 2012, Peter N. M. Hansteen. All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. THIS DOCUMENTATION IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS “AS IS” AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. The document is a ’work in progress’, based on a manuscript prepared for a lecture at the BLUG (see http://www.blug.linux.no/) meeting of January 27th, 2005. Along the way it has spawned several conference tutorials as well as The Book of PF (http://nostarch.com/pf2.htm) (second edition, No Starch Press November 2010), which expands on all topics mentioned in this document presents several topics that are only hinted at here. -
Why Is Netbsd So Special? Use Your Favorite Tools and Applications All the Software You Ever Wanted
Why is NetBSD so special? Use Your Favorite Tools and Applications All the software you ever wanted Since NetBSD was founded in 1993, it has always been at NetBSD contains all the features you would expect in an open NetBSD consists of a slim base operating system that can the forefront of Open Source operating system development. source operating system today, including X11, tools for fire- be configured for many uses by adding software from the NetBSD has been the complete foundation or reference for walls, and software RAID. With NetBSD’s package tools you NetBSD Packages Collection, pkgsrc. The collection in- other projects. Many advantages of NetBSD are not found in can install more than 5400 freely available software packages cludes more than 5400 packages of which we have room here any other open source operating system: easily. (See "All the software you ever wanted", below) to mention but a few: NetBSD’s binary compatibility feature lets you run applica- • Support for 55 different hardware platforms today, tions compiled for other operating systems (for the same CPU • Web serving and website development, including more will follow: acorn26 acorn32 algor alpha amd64 amiga amigappc arc atari bebox architecture). This includes most applications for Linux, So- Apache (with many modules), PHP, and Jakarta Tom- cats cesfic cobalt dreamcast evbarm evbmips evbppc evbsh3 evbsh5 hp300 hp700 hpcarm hpcmips hpcsh laris, SCO, FreeBSD, BSD/OS, OSF/1, and Ultrix; and some cat i386 luna68k mac68k macppc mipsco mmeye mvme68k mvmeppc netwinder news68k newsmips next68k for Darwin and IRIX. In fact, testing has shown NetBSD runs ofppc pc532 playstation2 pmax pmppc prep sandpoint sbmips sgimips shark sparc sparc64 sun2 sun3 sun68k the Sun JDK/JRE for Linux as well as Linux itself does. -
March/April 2021
March/April 2021 FreeBSD 13 n Looking to the Future n Tool Chain n Boot Loader n TCP Cubic n Zstd in ZFS Also: Vendor Summit Report Practical Ports ® LETTER J O U R N A L from the Foundation E d i t o r i a l B o a r d John Baldwin FreeBSD Developer and Chair of • FreeBSD Journal Editorial Board. Justin Gibbs Founder of the FreeBSD Foundation, • President of the FreeBSD Foundation, and a Software Engineer at Facebook. Daichi Goto Director at BSD Consulting Inc. • (Tokyo). Tom Jones FreeBSD Developer, Internet Engineer • and Researcher at the University of Aberdeen. Dru Lavigne Author of BSD Hacks and elcome to the 13.0 Release issue! • The Best of FreeBSD Basics. Like you, we are excited to see the hard Michael W Lucas Author of Absolute FreeBSD. • work from the last two years come together Ed Maste Director of Project Development, • FreeBSD Foundation and Member W in a single release. Results from many Foundation- of the FreeBSD Core Team. funded projects are evident in the latest release. They Kirk McKusick Treasurer of the FreeBSD Foundation • Board, and lead author of The Design include help with the transition from SVN to Git, and Implementation book series. George V. Neville-Neil Director of the FreeBSD Foundation Board, contracting with Moritz Systems to update LLDB in • Member of the FreeBSD Core Team, and FreeBSD to fully replace GDB as a modern debugger, co-author of The Design and Implementation of the FreeBSD Operating System. and funding improvements to Linuxulator including Philip Paeps Secretary of the FreeBSD Foundation • Board, FreeBSD Committer, and stabilizing the code base and making it easier to get Independent Consultant. -
Openbsd Security Practises
I assure on my honour that I have actively participated in these solutions, and that the solutions were developed independently from other groups. Group members: Nian Tang, [email protected] Kai Hatje, [email protected] My name and personal number: Ahmad Bijairimi, 780214-1171 [email protected] (2010-03-08) Secure Computer Systems OpenBSD Security Practices: What do they do, What does it give them Group 8 1. INTRODUCTION 1.1 What is OpenBSD OpenBSD is an "free, functional and secure" [1] operating system (OS). It is unix-like and currently officially runs on 12 different architectures, such as i386, amd64 and sparc. The OpenBSD Project was founded in 1994 by Theo de Raadt, using a fork of NetBSD 1.0 in 1995 [2] as the base for the OpenBSD OS. It has since become one of the leading OS' when it comes to security. The main objectives of the OpenBSD project are to - provide free code (via the BSD license) - have high quality standards (of code) - have correctness (of code) - adhere to standards (POSIX, ANSI) - Provide good crypto tools (SSH, SSL, IPSEC, ...) all in order to provide better security [3]. Since security in an OS is very much dependent on its tools and software and the developers were unsatisfied with aspects like the licence or the quality of a number of tools usually used in an OS, there are quite a few spinoffs from the OpenBSD Project, the best known one probably being OpenSSH [4]. The main focus of OpenBSD is on security. -
Application of Software Components in Operating System Design
CHARLES UNIVERSITY IN PRAGUE FACULTY OF MATHEMATICS AND PHYSICS DOCTORAL THESIS Martin Děcký Application of Software Components in Operating System Design Department of Distributed and Dependable Systems Supervisor of the Doctoral Thesis: Doc. Ing. Petr Tůma, Dr. Study Programme: Computer Science Specialization: I2 Software Systems Prague 2015 ii Acknowledgements The text of this doctoral thesis captures my original thoughts related to the HelenOS microkernel multiserver operating system. The text describes my overall inluence on the design of HelenOS and also my individual contributions to the implementation of HelenOS. That being written, it is completely necessary to acknowledge that no human is an island and (almost) all ideas are always extensions and recombination of previous ideas. The current source code of HelenOS in its mainline branch [42] comprises of more than 287,000 physical lines of code (see Figure 7.2). These 287,000 physical lines of code were contributed by more that 50 individuals and organizations (including myself) over the entire history of HelenOS and its direct ancestors since 2001. The size of the code would be even higher if we would also count in all the original code that can be found in the numerous feature branches of HelenOS [41] and the code in standalone patches that still wait for their inal review and merging into the main- line branch. For the sake of simplicity, we also ignore the code that was once written, but later refactored, replaced or removed. Assessing my own personal contribution to the HelenOS mainline branch can be done in a straight- forward way by examining the source code repository. -
Committer's Guide
Committer's Guide The FreeBSD Documentation Project Revision: e194334c79 Copyright © 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020 The FreeBSD Documentation Project FreeBSD is a registered trademark of the FreeBSD Foundation. Coverity is a registered trademark; Coverity Extend, Coverity Prevent and Coverity Prevent SQS are trademarks of Coverity, Inc. IBM, AIX, OS/2, PowerPC, PS/2, S/390, and ThinkPad are trademarks of International Business Machines Corporation in the United States, other countries, or both. Intel, Celeron, Centrino, Core, EtherExpress, i386, i486, Itanium, Pentium, and Xeon are trade- marks or registered trademarks of Intel Corporation or its subsidiaries in the United States and other countries. SPARC, SPARC64, and UltraSPARC are trademarks of SPARC International, Inc in the United States and other countries. SPARC International, Inc owns all of the SPARC trademarks and un- der licensing agreements allows the proper use of these trademarks by its members. Many of the designations used by manufacturers and sellers to distinguish their products are claimed as trademarks. Where those designations appear in this document, and the FreeBSD Project was aware of the trademark claim, the designations have been followed by the “™” or the “®” symbol. 2021-01-08 14:04:42 +0100 by Daniel Ebdrup Jensen. Abstract This document provides information for the FreeBSD committer community. All new com- mitters should read this document before they start, and existing committers are strongly en- couraged to review it from time to time. Almost all FreeBSD developers have commit rights to one or more repositories. -
Ebook - Informations About Operating Systems Version: September 3, 2016 | Download
eBook - Informations about Operating Systems Version: September 3, 2016 | Download: www.operating-system.org AIX Operating System (Unix) Internet: AIX Operating System (Unix) AmigaOS Operating System Internet: AmigaOS Operating System Android operating system Internet: Android operating system Aperios Operating System Internet: Aperios Operating System AtheOS Operating System Internet: AtheOS Operating System BeIA Operating System Internet: BeIA Operating System BeOS Operating System Internet: BeOS Operating System BSD/OS Operating System Internet: BSD/OS Operating System CP/M, DR-DOS Operating System Internet: CP/M, DR-DOS Operating System Darwin Operating System Internet: Darwin Operating System Debian Linux Operating System Internet: Debian Linux Operating System eComStation Operating System Internet: eComStation Operating System Symbian (EPOC) Operating System Internet: Symbian (EPOC) Operating System FreeBSD Operating System (BSD) Internet: FreeBSD Operating System (BSD) Gentoo Linux Operating System Internet: Gentoo Linux Operating System Haiku Operating System Internet: Haiku Operating System HP-UX Operating System (Unix) Internet: HP-UX Operating System (Unix) GNU/Hurd Operating System Internet: GNU/Hurd Operating System Inferno Operating System Internet: Inferno Operating System IRIX Operating System (Unix) Internet: IRIX Operating System (Unix) JavaOS Operating System Internet: JavaOS Operating System LFS Operating System (Linux) Internet: LFS Operating System (Linux) Linspire Operating System (Linux) Internet: Linspire Operating