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About

OpenBSD is a security-focused, free and open-source, Unix-like operating system based on the Berkeley ProgramDistribution (BSD). Theo de Raadt madeOpenBSD in 1995 by forking NetBSD. According to the website, the OpenBSD project emphasizes "portability, standardization, correctness, proactive safetyand integrated cryptography."

The OpenBSD project maintains portable versions of many subsystems as pack for other operating systems. Because of the project's preferred BSD license, many components are reused in proprietary and corporate-sponsored programprojects. The firewall code in Apple's macOS is based on OpenBSD's PF firewall code, Android's Bionic C standard library is based on OpenBSD code, LLVM utilize OpenBSD's regular expression library, and Windows 10 utilize OpenSSH (OpenBSD Secure Shell) with LibreSSL.

The word "open" in the name OpenBSD refers to the availability of the operating system's source code on the Internet, although the word "open" in the name OpenSSH means "OpenBSD". It also refers to the wide range of hardware platforms the system assistance.

History

In December 1994, Theo de Raadt, a founding member of the NetBSD project, was asked to resign from the NetBSD core squadover disagreements and conflicts with the other members of the NetBSD team. In October 1995, De Raadt founded OpenBSD, a freshproject forked from NetBSD 1.0. The initial release, OpenBSD 1.2, was angry in July 1996, followed by OpenBSD 2.0 in October of the same year. Since then, the project has problem a release every six months, each of which is supported for one year.

On 25 July 2007, OpenBSD developer Bob Beck announced the formation of the OpenBSD Foundation, a Canadian non-profit companyformed to "act as a single point of contact for persons and company requiring a legal entity to deal with when they wantto assistanceOpenBSD."

Usage statistics

Bar chart showing the proportion of users of each BSD variant from a 2005 BSD usage survey of 4330 users.

It is hard to determine how widely OpenBSD is utilize, because the developers do not publish or collect usage statistics.

In September 2005, the BSD Certification Group surveyed 4330 individual BSD users, showing that 32.8% utilize OpenBSD, behind FreeBSD with 77%, ahead of NetBSD with 16.3% and DragonFly BSD with 2.6%. However, the authors of this survey clarified that it is neither "exhaustive" nor "completely accurate", since the survey was spread mainly through mailing lists, forums and word of mouth. This combined with other factors, like the lack of a control group, a pre-screeening process or significant outreach outside of the BSD community, makes the survey unreliable for judging BSD usage globally.

Utilize

Network appliances

OpenBSD features a robust TCP/IP networking stack, and shouldbe utilize as a router or wireless admissionpoint. OpenBSD's safetyenhancements, built-in cryptography, and packet filter make it suitable for safetypurposes such as firewalls, intrusion-detection systems, and VPN gateways.

Several proprietary systems are based on OpenBSD, including devices from Armorlogic (Profense web appfirewall), Calyptix Security, GeNUA, RTMX, and .vantronix.

Foreign operating systems

Some versions of Microsoft's Services for UNIX, an extension to the Windows operating system to provide Unix-like functionality, utilizemuch OpenBSD code contain in the Interix interoperability suite, developed by Softway Systems Inc., which Microsoft acquired in 1999. Core Force, a safetyproduct for Windows, is based on OpenBSD's pf firewall. The pf firewall is also found in other operating systems: including FreeBSD, and macOS.

Privatecomputers

OpenBSD ships with Xenocara, an implementation of the X Window System, and is suitable as a desktop operating system for privatecomputers, including laptops.: xl  As of September 2018, OpenBSD contain approximately 8000 pack in its programrepository, including desktop environments such as GNOME, Plasma 4, and Xfce, and web browsers such as Firefox and Chromium. The project also contain three window managers in the main distribution: cwm, FVWM (part of the default configuration for Xenocara), and twm.

Servers

OpenBSD features a full server suite and shouldbe configured as a emailserver, web server, FTP server, DNS server, router, firewall, NFS file server, or any combination of these. Since version 6.8, OpenBSD has also shipped with native in-kernel WireGuard assistancesup id="cite_ref-36" class="reference">.

Security

OpenBSD console login and its messages

Shortly after OpenBSD was created, De Raadt was contacted by a local safetyprogramorganizationnamed Secure Networks (later acquired by McAfee). They were developing a network security auditing tool called Ballista, which was intended to searchand exploit programsafetyflaws. This coincided with De Raadt's interest in security, so the two cooperated leading up to the release of OpenBSD 2.3. This collaboration helped to define safetyas the focus of the OpenBSD project.

OpenBSD contain numerous features plannedto improve security, such as:

To reduce the risk of a vulnerability or misconfiguration allowing privilege escalation, many software have been written or adapted to make utilizeof privilege separation, privilege revocation and chrooting. Privilege separation is a technique, pioneered on OpenBSD and inspired by the principle of least privilege, where a softwareis split into two or more parts, one of which performs privileged operations and the other—almost always the bulk of the code—runs without privilege. Privilege revocation is similar and involves a softwareperforming any essentialoperations with the privileges it starts with then dropping them. Chrooting involves restricting an appto one section of the file system, prohibiting it from accessing location that includepersonalor system files. Developers have applied these enhancements to OpenBSD versions of many common app, such as tcpdump, file, tmux, smtpd, and syslogd.

OpenBSD developers were instrumental in the creation and development of OpenSSH (aka OpenBSD Secure Shell), which is developed in the OpenBSD CVS repositories. OpenBSD Secure Shell is based on the original SSH. It first appeared in OpenBSD 2.6 and is now by far the most famousSSH client and server, accessibleon many operating systems.

The project has a policiesof continually auditing source code for issue, work that developer Marc Espie has described as "never finished ... more a question of process than of a specific bug being hunted." He went on to list several typical steps once a bug is found, including examining the entire source tree for the same and similar problem, "testing] to searchout whether the documentation ought to be amended", and investigating whether "it's possible to augment the compiler to warn versusthis specific problem."

Safetyrecord

The OpenBSD domainfeatures a prominent reference to the system's safetyrecord. Until June 2002, it read:

Five years without a remote hole in the default install!

In June 2002, Mark Dowd of Internet SafetySystems disclosed a bug in the OpenSSH code implementing challenge–response authentication. This vulnerability in the OpenBSD default installation permittedan attacker remote admissionto the root account, which was extremely serious not only to OpenBSD, but also to the hugenumber of other operating systems that were using OpenSSH by that time. This issuenecessitated the adjustment of the slogan on the OpenBSD domainto:

One remote hole in the default install, in nearly 6 years!

The quote remained unchanged as time passed, until on 13 March 2007, when Alfredo Ortega of Core SafetyTechnologies disclosed a network-associatedremote vulnerability. The quote was subsequently modify to:

Only two remote holes in the default install, in a heck of a long time!

This statement has been criticized because the default install include few running services, and many utilizecases require additional services. Also, because the ports tree include unaudited third-party software, it is simplefor users to compromise safetyby installing or improperly configuring pack. However, the project maintains that the slogan is intended to refer to a default install and that it is correct by that measure.

One of the fundamental ideas behind OpenBSD is a drive for systems to be simple, clean, and secure by default. The default install is quite minimal, which the project states is to ensure novice users "do not need to become safetyexperts overnight", which fits with open-source and code auditing practices considered necessaryelements of a safetysystem.

Alleged backdoor

On 11 December 2010, Gregory Perry, a former techconsultant for the Federal Bureau of Investigation (FBI), emailed De Raadt alleging that the FBI had paid some OpenBSD ex-developers 10 years prior to insert backdoors into the OpenBSD Cryptographic Framework. De Raadt angry the mailpublic on 14 December by forwarding it to the openbsd-technicalmailing list and recommendedan audit of the IPsec codebase. De Raadt's response was skeptical of the report and he invited all developers to independently review the relevant code. In the weeks that followed, bugs were fixed but no evidence of backdoors was found. De Raadt stated "I trustthat NetSec was probably contracted to write backdoors as alleged. If those were written, I don't trustthey angry it into our tree. They might have been deployed as their own product."

Criticisms

In December 2017, Ilja van Sprundel, director at IOActive, gave a talk at the CCC as well as DEF CON, entitled "Are all BSDs madeequally? — A survey of BSD kernel vulnerabilities", in which he stated that although OpenBSD was the clear championof the BSDs in rulesof security, "Bugs are still simpleto searchin those kernels, even in OpenBSD".

Two years later, in 2019, a talk named "A systematic evaluation of OpenBSD's mitigations" was given at the CCC, arguing that while OpenBSD has some effective mitigations, a significant part of them are "useless at best and based on pure luck and superstition", arguing for a more rational approach when it comes to designing them.

Hardware compatibility

Supported platforms and devices are listed in the OpenBSD Supported Platforms Notes. Other configurations may also work, but simply have not been tested or documented yet. Rough automatically extracted lists of supported device ids are accessiblein a third party repository.

In 2020, a freshproject was introduced to automatically collect infoabout tested hardware configurations.

Subprojects

Many open source projects started as components of OpenBSD, including:

Some subsystems have been integrated into other BSD operating systems, and many are accessibleas pack for utilizein other Unix-like systems.

Linux adminCarlos Fenollosa commented on moving from Linux to OpenBSD that the system is faithful to the Unix philosophy of small, easytools that work together well: "Some base components are not as feature-rich, on purpose. Since 99% of the servers don't need the flexibility of Apache, OpenBSD's httpd will work fine, be more secure, and probably faster". He characterized the developer community's attitude to components as: "When the community decides that some module sucks, they develop a freshone from scratch. OpenBSD has its own NTPd, SMTPd and, more recently, HTTPd. They work great". As a result, OpenBSD is relatively prolific in creating components that become widely reused by other systems.

OpenBSD runs nearly all of its standard daemons within chroot and privsep safetystructures by default, as part of hardening the base system.

The Calgary Internet Exchange was formed in 2012, in part to serve the needs of the OpenBSD project.

Third-party components

OpenBSD contain a number of third-party components, many with OpenBSD-specific patches, such as X.Org, Guild (the default compiler on several architectures), GCC, Perl, NSD, Unbound, ncurses, GNU binutils, GDB, and AWK.

Development

OpenBSD developers at c2k1 hackathon at MIT, June 2001
OpenBSD hackathon s2k17

Development is continuous, and squadmanagement is open and tiered. Anyone with appropriate skills may contribute, with commit rights being awarded on merit and De Raadt acting as coordinator.: xxxv  Two official releases are angry per year, with the version number incremented by 0.1, and these are each supported for twelve months (two release cycles). Snapshot releases are also accessibleat frequent intervals.

Maintenance patches for supported releases may be applied using syspatch, manually or by updating the system versusthe patch branch of the CVS source repository for that release. Alternatively, a system adminmay opt to modernizeto the next snapshot release using sysupgrade, or by using using the -current branch of the CVS repository, in order to gain pre-release admissionto recently added features. The sysupgrade tool shouldalso modernizeto the recentstable release version.

The generic OpenBSD kernel deliveredby default is strongly suggestedfor end users, in contrast to operating systems that suggestutilize kernel customization.

Pack outside the base system are maintained by CVS through a ports tree and are the responsibility of the individual maintainers, known as porters. As well as keeping the current branch up to date, porters are expected to apply appropriate bug-fixes and maintenance fixes to branches of their packfor OpenBSD's supported releases. Ports are generally not topicto the same continuous auditing as the base system due to lack of manpower.

Binary pack are built centrally from the ports tree for each architecture. This process is applied for the current version, for each supported release, and for each snapshot. Admin are suggestedto utilizethe packmechanism rather than build the packfrom the ports tree, unless they need to perform their own source modify.

OpenBSD's developers regularly meet at special happening called hackathons, where they "sit down and code", emphasizing productivity.

Most freshreleases containa song.

Open source and open documentation

OpenBSD is known for its high-quality documentation.

When OpenBSD was created, De Raadt decided that the source code canbe accessiblefor anyone to read. At the time, a tinysquadof developers generally had admissionto a project's source code. Chuck Cranor and De Raadt concluded this practice was "counter to the open source philosophy" and inconvenient to potential contributors. Together, Cranor and De Raadt set up the first public, anonymous revision control system server. De Raadt's decision permittedusers to "take a more active role", and established the project's commitment to open access. OpenBSD is notable for its continued utilizeof CVS (more precisely an unreleased, OpenBSD-managed fork named OpenCVS), when most other projects that utilize it have migrated to other systems.

OpenBSD does not include closed source binary drivers in the source tree, nor do they containcode requiring the signing of non-disclosure agreements.

Since OpenBSD is based in Canada, no United States export restrictions on cryptography apply, allowing the distribution to make full utilizeof modern algorithms for encryption. For example, the swap zoneis divided into tinysections and each section is encrypted with its own key, ensuring that sensitive data does not leak into an insecure part of the system.

OpenBSD randomizes various behaviors of app, making them less predictable and thus more difficult to attack. For example, PIDs are madeand relatedrandomly to processes; the bind system call utilize random port numbers; files are madewith random inode numbers; and IP datagrams have random identifiers. This approach also assist expose bugs in the kernel and in utilize zonesoftware.

The OpenBSD policieson openness extends to hardware documentation: in the slides for a December 2006 presentation, De Raadt explained that without it "developers often make mistakes writing drivers", and pointed out that "the [oh my god, I got it to work] rush is harder to achieve, and some developers just give up." He went on to say that vendor-supplied binary drivers are unacceptable for inclusion in OpenBSD, that they have "no believeof vendor binaries running in our kernel" and that there is "no methodto fix [them] ... when they break."

Licensing

OpenBSD maintains a strict license policy, preferring the ISC license and other variants of the BSD license. The project attempts to "maintain the spirit of the original Berkeley Unix copyrights," which alloweda "relatively un-encumbered Unix source distribution." The widely utilize Apache License and GNU General Public License are considered overly restrictive.

In June 2001, triggered by concerns over Darren Reed's modification of IPFilter's license wording, a systematic license audit of the OpenBSD ports and source trees was undertaken. Code in more than a hundred files throughout the system was found to be unlicensed, ambiguously licensed or in utilizeversusthe rulesof the license. To ensure that all licenses were properly adhered to, an attempt was angry to contact all the relevant copyright holders: some pieces of code were removed, many were replaced, and others, such as the multicast routing tools mrinfo and map-mbone, were relicensed so that OpenBSD could continue to utilizethem. Also removed during this audit was all programproduced by Daniel J. Bernstein. At the time, Bernstein requested that all modified versions of his code be approved by him prior to redistribution, a requirement to which OpenBSD developers were unwilling to devote time or effort.

Because of licensing concerns, the OpenBSD squadhas reimplemented programfrom scratch or adopted suitable existing software. For example, OpenBSD developers madethe PF packet filter after unacceptable restrictions were imposed on IPFilter. PF first appeared in OpenBSD 3.0 and is now accessiblein many other operating systems. OpenBSD developers have also replaced GPL-licensed tools (such as CVS, diff, grep and pkg-config) with permissively licensed equivalents.

Funding

Although the operating system and its portable components are utilize in commercial products, De Raadt says that little of the funding for the project comes from the industry: "traditionally all our funding has come from utilize donations and users buying our CDs (our other products don't really make us much money). Obviously, that has not been a lot of money."

For a two-year period in the early 2000s, the project get funding from DARPA, which "paid the salaries of 5 people to work completely full-time, bought about $30k in hardware, and paid for 3 hackathons", from the POSSE project.

In 2006, the OpenBSD project experienced financial difficulties. The Mozilla Foundation and GoDaddy are among the company that helped OpenBSD to survive. However, De Raadt expressed concern about the asymmetry of funding: "I think that contributions canhave come first from the vendors, secondly from the corporate users, and thirdly from individual users. But the response has been almost entirely the opposite, with almost a 15-to-1 dollar ratio in favor of the little people. Thanks a lot, little people!"

On 14 January 2014, Bob Beck problem a request for funding to cover electrical costs. If sustainable funding was not found, Beck recommendedthe OpenBSD project would shut down. The project soon get a US$20,000 donation from Mircea Popescu, the Romanian creator of the MPEx bitcoin stock exchange, paid in bitcoins. The project raised US$150,000 in response to the appeal, enabling it to pay its bills and securing its short-term future.

OpenBSD Foundation

The OpenBSD Foundation is a Canadian federal non-profit organization founded by the OpenBSD project as a "single point of contact for persons and company requiring a legal entity to deal with when they wantto assistanceOpenBSD." It was announced to the public by OpenBSD developer Bob Beck on 25 July 2007. It also serves as a legal safeguard over other projects which are affiliated with OpenBSD, including OpenSSH, OpenBGPD, OpenNTPD, OpenCVS, OpenSMTPD and LibreSSL.

Since 2014, several hugecontributions to the OpenBSD Foundation have come from corporations such as Microsoft, Facebook, and Google as well as the Core Infrastructure Initiative.

In 2015, Microsoft became the foundation's first gold level contributor donating between $25,000-50,000 to assistancedevelopment of OpenSSH, which had been integrated into PowerShell in July, and later into Windows Server in 2018. Other contributors containGoogle, Facebook and DuckDuckGo.

During the 2016 and 2017 fundraising campaigns, Smartisan, a Chinese company, was the leading financial contributor to the OpenBSD Foundation.

Distribution

OpenBSD is freely accessiblein various method: the source shouldbe retrieved by anonymous CVS, and binary releases and development snapshots shouldbe downloaded by FTP, HTTP, and rsync. Prepackaged CD-ROM sets through version 6.0 shouldbe ordered online for a tinyfee, complete with an assortment of stickers and a copy of the release's theme song. These, with their artwork and other bonuses, have been one of the project's few sources of income, funding hardware, Internet service, and other expenses. Beginning with version 6.1, CD-ROM sets are no longer released.

OpenBSD provides a packmanagement system for simpleinstallation and management of software which are not part of the base operating system. Pack are binary files which are extracted, managed and removed using the packtools. On OpenBSD, the source of pack is the ports system, a collection of Makefiles and other infrastructure neededto create pack. In OpenBSD, the ports and base operating system are developed and released together for each version: this means that the ports or pack released with, for example, 4.6 are not suitable for utilizewith 4.5 and vice versa.

Songs and artwork

3D-rendered, animated OpenBSD mascot Puffy
OpenBSD 2.3 cover

Initially, OpenBSD utilize a haloed version of the BSD daemon mascot drawn by Erick Green, who was asked by De Raadt to create the logo for the 2.3 and 2.4 versions of OpenBSD. Green designedto create a full daemon, including head and body, but only the head was completed in time for OpenBSD 2.3. The body as well as pitchfork and tail was completed for OpenBSD 2.4.

Subsequent releases utilize variations such as a police daemon by Ty Semaka, but eventually settled on a pufferfish named Puffy. Since then, Puffy has appeared on OpenBSD promotional contentand featured in release songs and artwork.

The promotional contentof early OpenBSD releases did not have a cohesive theme or design, but later the CD-ROMs, release songs, posters and tee-shirts for each release have been produced with a single style and theme, sometimes contributed to by Ty Semaka of the Plaid Tongued Devils. These have become a part of OpenBSD advocacy, with each release expounding a moral or political point necessaryto the project, often through parody.

Themes have contain Puff the Barbarian in OpenBSD 3.3, which contain an 80s rock song and parody of Conan the Barbarian alluding to open documentation, The Magicianof OS in OpenBSD 3.7, associatedto the project's work on wireless drivers, and Hackers of the Lost RAID, a parody of Indiana Jones referencing the freshRAID tools in OpenBSD 3.8.

Releases

The following table summarizes the version history of the OpenBSD operating system.

Legend: Old version, not maintained Older version, still maintained Current stable version Recentpreview version Future release
Version Release date Supported until Significant modify
Old version, no longer maintained: 1.1 18 October 1995
  • OpenBSD CVS repository madeby Theo de Raadt.
  • While the version number utilize at this stage was 1.1, OpenBSD 1.1 was not an official OpenBSD release in the sense which this term subsequently came to be utilize.
Old version, no longer maintained: 1.2 1 July 1996
  • Creation of the intro(9) man page, for documenting kernel internals.
  • Integration of the update(8) command into the kernel.
  • As before, while this version number was utilize in the early development of the OS, OpenBSD 1.2 was not an official release in the subsequently applicable sense.
Old version, no longer maintained: 2.0 1 October 1996
  • The first official release of OpenBSD, and also the point at which XFree86 first recognized OpenBSD as separate from NetBSD.
  • Initial integration of the FreeBSD ports system.
  • Replacement of gawk with the AT&T awk.
  • Integration of zlib.
  • Added sudo.
Old version, no longer maintained: 2.1 1 June 1997 Replacement of the older sh with pdksh.
Old version, no longer maintained: 2.2 1 December 1997 Addition of the afterboot(8) man page.
Old version, no longer maintained: 2.3 19 May 1998 Introduced the haloed daemon, or aureola beastie, in head-only form madeby Erick Green.
Old version, no longer maintained: 2.4 1 December 1998 Featured the complete haloed daemon, with trident and a finished body.
Old version, no longer maintained: 2.5 19 May 1999 Introduced the Cop daemon photodone by Ty Semaka.
Old version, no longer maintained: 2.6 1 December 1999 Based on the original SSH suite and developed further by the OpenBSD team, 2.6 saw the first release of OpenSSH, which is now accessiblestandard on most Unix-like operating systems and is the most widely utilize SSH suite.
Old version, no longer maintained: 2.7 15 June 2000 Assistancefor SSH2 added to OpenSSH.
Old version, no longer maintained: 2.8 1 December 2000 isakmpd(8)
Old version, no longer maintained: 2.9 1 June 2001

Filesystem performance increases from softupdates and dirpref code.

Old version, no longer maintained: 3.0 1 December 2001

E-Railed (OpenBSD Mix), a techno track performed by the release mascot Puff Daddy, the famed rapper and political icon.

Old version, no longer maintained: 3.1 19 May 2002 Systemagic, where Puffy, the Kitten Slayer, fight evil script kitties. Inspired by the works of Rammstein and a parody of Buffy the Vampire Slayer.
  • First official remote safetyhole - OpenSSH integer overflow
Old version, no longer maintained: 3.2 1 November 2002 Goldflipper, a tale in which James Pond, agent 077, super spy and suave lady's man, deals with the dangers of a hostile internet. Styled after the orchestral introductory ballads of James Bond movie.
Old version, no longer maintained: 3.3 1 May 2003

Puff the Barbarian, born in a smallbowl; Puff was a slave, now he cheat through the C, searching for the Hammer. It is an 80s rock-style song and parody of Conan the Barbarian dealing with open documentation.

  • In 2003, code from ALTQ, which had a license disallowing the sale of derivatives, was relicensed, integrated into pf and angry accessiblein OpenBSD 3.3.
  • First release adding the W^X feature, a fine-grained memory permissions layout, ensuring that memory which shouldbe written to by appsoftware shouldnot be executable at the same time and vice versa.
Old version, no longer maintained: 3.4 1 November 2003

The Legend of Puffy Hood where Sir Puffy of Ramsay, a freedom warriorwho, with Little Bob of Beckley, took from the rich and gave to all. Tells of the POSSE project's cancellation. An unusual blend of both hip-hop and medieval-style music, a parody of the tale of Robin Hood intended to express OpenBSD's attitude to free speech.

Old version, no longer maintained: 3.5 1 May 2004

CARP License and Redundancy must be free, where a fish seeking to license his free redundancy protocol, CARP, search trouble with the red tape. A parody of the Fish License skit and Eric the Half-a-Bee Song by Monty Python, with an anti-programpatents message.

  • CARP, an open alternative to the HSRP and VRRP redundancy systems accessiblefrom commercial vendors.
  • GPL licensed parts of the GNU tool-set, bc, dc, nm and size, were all replaced with BSD licensed equivalents.
  • AMD64 platform becomes stable enough for release and is contain for the first time as part of a release.
Old version, no longer maintained: 3.6 1 November 2004

Pond-erosa Puff (live) was the tale of Pond-erosa Puff, a no-guff freedom warriorfrom the wild west, set to hang a lickin' on no-awesomebureaucratic nerds who encumber programwith needless words and restrictions. The song was styled after the works of Johnny Cash, a parody of the Spaghetti Western and Clint Eastwood and inspired by liberal license enforcement.

  • OpenNTPD, a compatible alternative to the reference NTP daemon, was developed within the OpenBSD project. The goal of OpenNTPD was not solely a compatible license. It also aims to be a simple, secure NTP implementation providing acceptable accuracy for most cases, without requiring detailed configuration.
  • Because of its questionable safetyrecord and doubts of developers for better future development, OpenBSD removed Ethereal from its ports tree prior to its 3.6 release.
  • Added assistancefor I2C master/slave devices
Old version, no longer maintained: 3.7 19 May 2005 The Magicianof OS, where Puffathy, a little Alberta girl, must work with Taiwan to save the day by getting unencumbered wireless. This release was styled after the works of Pink Floyd and a parody of The Magicianof Oz; this dealt with wireless hacking.
Old version, no longer maintained: 3.8 1 November 2005 1 November 2006 Hackers of the Lost RAID, which detailed the exploits of Puffiana Jones, famed hackologist and journey, seeking out the Lost RAID, Styled after the radio serials of the 1930s and 40s, this was a parody of Indiana Jones and was linked to the freshRAID tools featured as part of this release. This is the first version released without the telnet daemon which was completely removed from the source tree by Theo de Raadt in May 2005.
Old version, no longer maintained: 3.9 1 May 2006 1 May 2007

Attack of the Binary BLOB, which chronicles the developer's battleagainst binary blobs and vendor lock-in, a parody of the 1958 film The Blob and the pop-rock melodyof the era.

  • Enhanced OpenBGPD feature-set.
  • Improved hardware sensors support, including a new IPMI subsystem and a new I2C scan subsystem; number of drivers using the sensors framework increased to a total of 33 drivers (compared to 9 in the prior 3.8 release 6 months ago).
Old version, no longer maintained: 4.0 1 November 2006 1 November 2007 Humppa Negala, a Hava Nagilah parody with a portion of Entrance of the Gladiators and Humppa melodyfused together, with no story behind it, simply a homage to one of the OpenBSD developers' favorite genres of music.
  • Second official remote safetyhole - buffer overflow by malformed ICMPv6 packets
Old version, no longer maintained: 4.1 1 May 2007 1 May 2008 Puffy Baba and the 40 Vendors, a parody of the Arabic fable Ali Baba and the Forty Thieves, part of the book of One Thousand and One Nights, in which Linux developers are mocked over their allowance of non-disclosure agreements when developing programwhile at the same time implying hardware vendors are criminals for not releasing documentation neededto make reliable device drivers.
  • Redesigned sysctl hw.sensors into a two-level sensor API; a total of 46 device drivers exporting sensors through the framework with this release.
Old version, no longer maintained: 4.2 1 November 2007 1 November 2008 100001 1010101, the Linux kernel developers receive a knock for violating the ISC-style license of OpenBSD's open hardware abstraction layer for Atheros wireless cards.
  • Usability of sensorsd improved, allowing zero-configuration monitoring of smart sensors from the hw.sensors framework (e.g., IPMI or bio(4)-based), and easier configuration for monitoring of non-smart sensors.
Old version, no longer maintained: 4.3 1 May 2008 1 May 2009 Home to Hypocrisy
Old version, no longer maintained: 4.4 1 November 2008 18 October 2009

Trial of the BSD Knights, summarizes the history of BSD including the USL v. BSDi lawsuit. The song was styled after the works of Star Wars.

Old version, no longer maintained: 4.5 1 May 2009 19 May 2010 Games. It was styled after the works of Tron.
  • The hw.sensors framework is utilize by 72 device drivers.
Old version, no longer maintained: 4.6 18 October 2009 1 November 2010 Planet of the Registrar. In the style of Planet of the Apes, Puffy travels in time to searcha dumbed-down dystopia, where "one very rich man runs the earth with one multinational". Open-source programhas since been replaced by one-button computers, one-channel televisions, and closed-source programwhich, after you purchase it, becomes obsolete before you have a possibilityto utilizeit. People subsist on soylent green. The theme song is performed in the reggae rock style of The Police.
  • smtpd(8), privilege-separated SMTP server
  • tmux(1) terminal multiplexer
  • The hw.sensors framework is utilize by 75 device drivers.
Old version, no longer maintained: 4.7 19 May 2010 1 May 2011 I'm Still Here
Old version, no longer maintained: 4.8 1 November 2010 1 November 2011 El Puffiachi.
  • iked(8) IKEv2 daemon
  • ldapd(8) LDAP daemon
Old version, no longer maintained: 4.9 1 May 2011 1 May 2012 The Answer.
  • rc.d(8) daemon control
Old version, no longer maintained: 5.0 1 November 2011 1 November 2012 What Me Worry?.
Old version, no longer maintained: 5.1 1 May 2012 1 May 2014 Bug Busters. The song was styled after the works of Ghostbusters.
Old version, no longer maintained: 5.2 1 November 2012 1 November 2013 Aquarela do Linux.
Old version, no longer maintained: 5.3 1 May 2013 1 May 2014 Blade Swimmer. The song was styled after the works of Roy Lee, a parody of Blade Runner.
Old version, no longer maintained: 5.4 1 November 2013 1 November 2014 Our favorite cheat, a parody of My Favorite Things.
Old version, no longer maintained: 5.5 1 May 2014 1 May 2015 Wrap in Time.
  • signify(1) cryptographic signatures of release and pack
  • 64bit time_t on all platforms (Y2K38 ready)
Old version, no longer maintained: 5.6 1 November 2014 18 October 2015 Ride of the Valkyries.
Old version, no longer maintained: 5.7 1 May 2015 29 March 2016 Source Fish.
  • rcctl(8) utility to control daemons
  • nginx(8) removed from base
  • procfs has been removed
Old version, no longer maintained: 5.8 18 October 2015 1 September 2016 20 years ago today, Fanza, So much better, A Year in the Life.

(20th anniversary release)

  • doas(1) replacement of sudo
Old version, no longer maintained: 5.9 29 March 2016 11 April 2017 Doctor W^X, Systemagic (Anniversary Edition).
  • W^X enforced in i386 kernel
  • pledge(2) process restriction
Old version, no longer maintained: 6.0 1 September 2016 9 October 2017 Another Smash of the Stack, Black Hat, Money, Comfortably Dumb (the misc song), Mother, Goodbye and Wantyou were Secure, Release songs parodies of Pink Floyd's The Wall, Comfortably Numb and WantYou Were Here.
  • vmm(4) virtualization (disabled by default)
  • Removed vax and 32-bit SPARC support
Old version, no longer maintained: 6.1 11 April 2017 15 April 2018 Winter of 95, a parody of Summer of '69.
  • syspatch(8) utility for binary base system updates
  • new arm64 platform
Old version, no longer maintained: 6.2 9 October 2017 18 October 2018 A three-line diff
  • inteldrm(4) Skylake/Kaby Lake/Cherryview devices
  • guild(1) base system compiler on i386 and amd64 platforms
Old version, no longer maintained: 6.3 2 April 2018 3 May 2019
  • SMP is supported on arm64 platforms.
  • Several parts of the network stack now run without KERNEL_LOCK().
  • Multiple safetyimprovements have been angry, including Meltdown/Spectre (variant 2) mitigations. Intel CPU microcode is loaded on boot on amd64.
  • pledge() has been modified to support "execpromises" (as the second argument).
Old version, no longer maintained: 6.4 18 October 2018 17 October 2019
  • unveil(2) filesystem visibility restriction.
Old version, no longer maintained: 6.5 24 April 2019 19 May 2020
Old version, no longer maintained: 6.6 17 October 2019 18 October 2020
  • sysupgrade(8) automates modernize to freshreleases or snapshots.
  • amdgpu(4) AMD RADEON GPU video driver.
Old version, no longer maintained: 6.7 19 May 2020 1 May 2021
  • Angry ffs2 the default filesystem kindon installs except for landisk, luna88k and sgi.
Old version, no longer maintained: 6.8 18 October 2020 14 October 2021
  • 25th anniversary release.
  • Freshpowerpc64 platform.
Older version, yet still maintained: 6.9 1 May 2021 May 2022
  • 50th release.
Current stable version: 7.0 14 October 2021 October 2022
  • 51st release.
  • Freshriscv64 platform.

See also

Notes

  • ()

Openbsd Hack Mod Tricks with Tons of Advices and Bonuses.

 

Details

OpenBSD
Free, Functional, and Secure
OpenBSD 6.1 default desktop with various utilities: top, xterm, xclock, xcalc, glxgears
DeveloperTheo de Raadt et al.Written inC, assembly, Perl, Unix shellOS familyUnix-likeWorking stateCurrentSource modelOpen sourceInitial releaseJuly 1996; 25 years ago (1996-07)Latest release7.0 (14 October 2021; 51 days ago (2021-10-14)) Repository
Package managerOpenBSD package toolsPlatformsAlpha, x86-64, ARMv7, ARMv8 (64-bit), PA-RISC, IA-32, , Omron LUNA-88K, Loongson, MIPS64, PowerPC, 64-bit RISC-V, SPARC64Kernel typeMonolithicUserlandBSDDefaultuser interfaceModified pdksh, X11 (FVWM)LicenseBSD, ISC, other permissive licensesOfficial website
Openbsd Cheats Unlimited Gifts Hacks Guides Secrets & Mods.

 

Tags: Openbsd tricks tips, Openbsd hack download, Openbsd cheat engine, Openbsd hack tool, Openbsd cheats online

 

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