Contributeurs Au Projet Freebsd Version: 43184 2013-11-13 Par Hrs
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BSD – Alternativen Zu Linux
∗BSD { Alternativen zu Linux Karl Lockhoff March 19, 2015 Inhaltsverzeichnis I Woher kommt BSD? I Was ist BSD? I Was ist sind die Unterschiede zwischen FreeBSD, NetBSD und OpenBSD? I Warum soll ich *BSD statt Linux einsetzen? I Chuck Haley und Bill Joy entwickeln den vi in Berkeley I Bill Joy erstellt eine Sammlung von Tools, 1BSD I Unix Version 7 erscheint I 2BSD erscheint (Basis f¨urdie Weiterentwicklung PDP-11) I 3BSD erscheint (erstmalig mit einen eigenen Kernel) I 4BSD erscheint (enth¨altdas fast file system (ffs)) I Bill Joy wechselt zu Sun Microsystems I Kirk McKusick ¨ubernimmt die Entwicklung von BSD I 1978 I 1979 I 1980 I 1981 Woher kommt BSD? I 1976 I Unix Version 6 erscheint I 2BSD erscheint (Basis f¨urdie Weiterentwicklung PDP-11) I 3BSD erscheint (erstmalig mit einen eigenen Kernel) I 4BSD erscheint (enth¨altdas fast file system (ffs)) I Bill Joy wechselt zu Sun Microsystems I Kirk McKusick ¨ubernimmt die Entwicklung von BSD I Bill Joy erstellt eine Sammlung von Tools, 1BSD I Unix Version 7 erscheint I 1979 I 1980 I 1981 Woher kommt BSD? I 1976 I Unix Version 6 erscheint I 1978 I Chuck Haley und Bill Joy entwickeln den vi in Berkeley I 2BSD erscheint (Basis f¨urdie Weiterentwicklung PDP-11) I 3BSD erscheint (erstmalig mit einen eigenen Kernel) I 4BSD erscheint (enth¨altdas fast file system (ffs)) I Bill Joy wechselt zu Sun Microsystems I Kirk McKusick ¨ubernimmt die Entwicklung von BSD I Unix Version 7 erscheint I 1979 I 1980 I 1981 Woher kommt BSD? I 1976 I Unix Version 6 erscheint I 1978 I Chuck Haley und Bill Joy entwickeln den -
Advanced Openbsd Hardening
Advanced Hardening WrongunWrongun && DCDC JuneJune 20052005 ssh://root:[email protected] Lab Challenge JoinJoin thethe wifiwifi netnet andand sshssh intointo thethe boxbox usingusing thethe accountaccount specifiedspecified inin thethe footerfooter TryTry toto pwnpwn thethe boxbox byby addingadding anan accountaccount forfor yourselfyourself oror backdooringbackdooring sshdsshd ssh://root:[email protected] “Only one remote hole in the default install, in more than 8 years! “ ssh://root:[email protected] So OpenBSD is uber secure, right? Actually,Actually, nono …… TheThe defaultdefault installinstall hashas nothingnothing enabledenabled (except(except ssh)ssh) ““NoNo wonderwonder itit ’’ss secure,secure, itit ’’ss poweredpowered off!off! ”” SourceSource --onlyonly patchingpatching strategystrategy makesmakes itit difficultdifficult toto rollroll outout fixesfixes toto platformsplatforms w/ow/o compilerscompilers (i.e.(i.e. disklessdiskless firewalls,firewalls, etc.)etc.) ssh://root:[email protected] Brief History of OpenBSD Vulnerabilities 30 March 05: Bugs in the cp(4) stack can lead to memory exhaustion or processing of TCP segments with invalid SACK optio ns and cause a system crash. 14 Dec 04: On systems running sakmpd(8) it is possible for a local user to cause kernel memory corruption and system panic by setti ng psec(4) credentials on a socket 20 Sept 04: radius authentication, as implemented by ogin_radius(8) , was not checking the shared secret used for replies sent by the radius server. This could allow an attacker to spoof -
Ebook - Informations About Operating Systems Version: August 15, 2006 | Download
eBook - Informations about Operating Systems Version: August 15, 2006 | Download: www.operating-system.org AIX Internet: AIX AmigaOS Internet: AmigaOS AtheOS Internet: AtheOS BeIA Internet: BeIA BeOS Internet: BeOS BSDi Internet: BSDi CP/M Internet: CP/M Darwin Internet: Darwin EPOC Internet: EPOC FreeBSD Internet: FreeBSD HP-UX Internet: HP-UX Hurd Internet: Hurd Inferno Internet: Inferno IRIX Internet: IRIX JavaOS Internet: JavaOS LFS Internet: LFS Linspire Internet: Linspire Linux Internet: Linux MacOS Internet: MacOS Minix Internet: Minix MorphOS Internet: MorphOS MS-DOS Internet: MS-DOS MVS Internet: MVS NetBSD Internet: NetBSD NetWare Internet: NetWare Newdeal Internet: Newdeal NEXTSTEP Internet: NEXTSTEP OpenBSD Internet: OpenBSD OS/2 Internet: OS/2 Further operating systems Internet: Further operating systems PalmOS Internet: PalmOS Plan9 Internet: Plan9 QNX Internet: QNX RiscOS Internet: RiscOS Solaris Internet: Solaris SuSE Linux Internet: SuSE Linux Unicos Internet: Unicos Unix Internet: Unix Unixware Internet: Unixware Windows 2000 Internet: Windows 2000 Windows 3.11 Internet: Windows 3.11 Windows 95 Internet: Windows 95 Windows 98 Internet: Windows 98 Windows CE Internet: Windows CE Windows Family Internet: Windows Family Windows ME Internet: Windows ME Seite 1 von 138 eBook - Informations about Operating Systems Version: August 15, 2006 | Download: www.operating-system.org Windows NT 3.1 Internet: Windows NT 3.1 Windows NT 4.0 Internet: Windows NT 4.0 Windows Server 2003 Internet: Windows Server 2003 Windows Vista Internet: Windows Vista Windows XP Internet: Windows XP Apple - Company Internet: Apple - Company AT&T - Company Internet: AT&T - Company Be Inc. - Company Internet: Be Inc. - Company BSD Family Internet: BSD Family Cray Inc. -
Twenty Years of Berkeley Unix : from AT&T-Owned to Freely
Twenty Years of Berkeley Unix : From AT&T-Owned to Freely Redistributable Marshall Kirk McKusick Early History Ken Thompson and Dennis Ritchie presented the first Unix paper at the Symposium on Operating Systems Principles at Purdue University in November 1973. Professor Bob Fabry, of the University of California at Berkeley, was in attendance and immediately became interested in obtaining a copy of the system to experiment with at Berkeley. At the time, Berkeley had only large mainframe computer systems doing batch processing, so the first order of business was to get a PDP-11/45 suitable for running with the then-current Version 4 of Unix. The Computer Science Department at Berkeley, together with the Mathematics Department and the Statistics Department, were able to jointly purchase a PDP-11/45. In January 1974, a Version 4 tape was delivered and Unix was installed by graduate student Keith Standiford. Although Ken Thompson at Purdue was not involved in the installation at Berkeley as he had been for most systems up to that time, his expertise was soon needed to determine the cause of several strange system crashes. Because Berkeley had only a 300-baud acoustic-coupled modem without auto answer capability, Thompson would call Standiford in the machine room and have him insert the phone into the modem; in this way Thompson was able to remotely debug crash dumps from New Jersey. Many of the crashes were caused by the disk controller's inability to reliably do overlapped seeks, contrary to the documentation. Berkeley's 11/45 was among the first systems that Thompson had encountered that had two disks on the same controller! Thompson's remote debugging was the first example of the cooperation that sprang up between Berkeley and Bell Labs. -
Advanced Integration
ZFS: Advanced Integration Allan Jude -- [email protected] @allanjude Introduction: Allan Jude • 16 Years as FreeBSD Server Admin • FreeBSD src/doc committer (ZFS, installer, boot loader, GELI, bhyve, libucl, libxo) • FreeBSD Core Team (July 2016 - 2018) • Co-Author of “FreeBSD Mastery: ZFS” and “FreeBSD Mastery: Advanced ZFS” with Michael W. Lucas • Architect of the ScaleEngine CDN (HTTP and Video) • Host of weekly BSDNow.tv Podcast • Personally Responsible for 1000 TB of ZFS Storage ZFS: What Is It? • ZFS is a filesystem with a built in volume manager (combine multiple disks into a pool) • Space from the pool is thin-provisioned to multiple filesystems or block volumes (zvols) • All data and metadata is checksummed • Optional transparent compression • Copy-on-Write with snapshots and clones • Each filesystem is tunable with properties Snapshots and Clones • Copy-on-Write means snapshots are instant • Blocks referenced by a snapshot kept when they are removed from the live filesystem • Snapshots allows you to access the file- system as it was when snapshot was taken • No performance impact on reads/writes • Take no additional space until blocks change • Clones allow you to “fork” a filesystem Boot Environments • If the root filesystem is on ZFS, you can snapshot before an upgrade, then clone it • You now have 2 filesystems, one before the upgrade, and one after. Only takes the space of blocks that changed • FreeBSD boot loader allows you to select which one to use from a menu • Upgrade without fear, can always rollback Boot Environment Tooling • Existing tool: sysadmin/beadm • GSoC 2017: be(8) and libbe(3) • New tool supports better management of filesystem properties for boot integration • New tool will support “deep” boot environments. -
The Release Engineering of Freebsd 4.4
The Release Engineering of FreeBSD 4.4 Murray Stokely [email protected] Wind River Systems Abstract different pace, and with the general assumption that they This paper describes the approach used by the FreeBSD re- have first gone into FreeBSD-CURRENT and have been lease engineering team to make production-quality releases thoroughly tested by our user community. of the FreeBSD operating system. It details the methodol- In the interim period between releases, nightly snap- ogy used for the release of FreeBSD 4.4 and describes the shots are built automatically by the FreeBSD Project build tools available for those interested in producing customized machines and made available for download from ftp: FreeBSD releases for corporate rollouts or commercial pro- //stable.FreeBSD.org. The widespread availabil- ductization. ity of binary release snapshots, and the tendency of our user community to keep up with -STABLE development with CVSup and “make world”[8] helps to keep FreeBSD- 1 Introduction STABLE in a very reliable condition even before the qual- ity assurance activities ramp up pending a major release. The development of FreeBSD is a very open process. Bug reports and feature requests are continuously sub- FreeBSD is comprised of contributions from thousands of mitted by users throughout the release cycle. Problem people around the world. The FreeBSD Project provides reports are entered into our GNATS[9] database through anonymous CVS[1] access to the general public so that email, the send-pr(1) application, or via a web-based form. others can have access to log messages, diffs between de- In addition to the multitude of different technical mailing velopment branches, and other productivity enhancements lists about FreeBSD, the FreeBSD quality-assurance mail- that formal source code management provides. -