What is Linux? Bob Tanner time.com> Real Time Enterprises, Inc Eden Prairie, MN

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1 What is Linux? Bob Tanner time.com> Real Time Enterprises, Inc Eden Prairie, MN Page 1

2 What is Linux? Linux Conference Page 2

3 What is Linux? Linux Conference Page 3

4 Linux " Linux is pronounced LYNN ucks " Audio file from Linus himself Page 4

5 Outline " What is Linux? " What is Linux REALLY? " The Distant Past " The Past " Yesterday " Today " The Future " Conclusions Page 5

6 What is Linux? " Linux is a Unix clone written from scratch by Linus Torvalds with assistance from a loosely knit team of programmers across the Net. It aims towards POSIX compliance. It has all the features you would expect in a modern fully fledged Unix, including true multitasking, virtual memory, shared libraries, demand loading, shared copy on write executables, proper memory management and TCP/IP networking. Page 6

7 What is Linux Really? " Linus under graduate project that is changing the software and computing worlds. " An open source operating system that is free to anyone who wants it. " A very able solution to your business needs. (flexible, scalable, and reliable). " Linux can replace or supplement your current operating system. " It s a different way of thinking Page 7

8 The Distant Past " Workstations were Windows 3.1, 9600 baud, and Trumpet Winsock " Servers were Novell, Banyan Vines or LAN Manager " This was 1993 and only geeks ran Linux " Homebrew system, maintained everything from raw source files " Even then Linux was very able " Linux was not ready for the business world Page 8

9 The Past " Workstations were Windows 95, Windows 98, and 56K/ISDN " Servers were Windows NT, Novell " Slackware then Redhat distributions hit the Internet " Could maintain your system with pre built binaries, with seemless upgrades " Real Time mutated from Consultants to Window Wipers " Microsoft Exchange SID, PDC, BDC, crash/recovery incident Page 9

10 The Past Continues... " Real Time starts to build Linux solutions " Mail Server " Convincing a client " Double as a file server and print server " Churchill decided to beta test the solution " First success " Other clients were more willing to try Linux Page 10

11 Yesterday " Workstations were Windows 95, Windows 98, NT Workstation, DSL/Cable modems " Servers were Windows NT " Redhat goes IPO with a major splash " New distributions, major backing from IBM, Intel, etc " DOJ case against Microsoft " The Internet explodes in size " Hackers, crackers, SPAM mail, and Denial of Service attacks " Linux is ready for the business world Page 11

12 Today " Workstations are Windows 95, Windows 98, NT Workstation and Linux, DSL/Cable modems " Servers are predominately still Windows NT " Businesses get Linux " Windows 2000 upgrade or replacement " Internet security " Active Linux User Groups, like TCLUG " Linux Expo and user education Page 12

13 The Future " Where will Linux be strongest " Where will Linux need to improve " Workstations " Servers " Internet " Security " Integration " Support Page 13

14 Linux Strength " Internet servers (web, mail, dns, and ldap) " Corporate servers (file, print and intranet web) " Return on Investment " Stability " Flexibility " Integration " Ease of use Page 14

15 Linux Strength Page 15

16 Where Linux Needs to Improve " Hardware support (drivers and detection) " Richer application environment " More business applications " Zealots, anti Microsoft attitudes " Don t over promise Linux capabilities Page 16

17 The Future Workstations " Windows will always be here " GNOME 2.0 " KDE 2.0 " GNOME Office Suite " KOffice " StarOffice " WordPerfect Office " Applixware " VMWare Page 17

18 GNOME Page 18

19 KDE Page 19

20 The Future Servers " Windows will always be here " Apache " Sendmail " DNS " Directory Services (LDAP and NDS) " Application Servers (JSP, Servlets, EJB) " File and Print " Databases Page 20

21 The Future The Internet " Security " Firewall " Loghost " Monitor " Intrusion detection Page 21

22 Real Time Monitoring Page 22

23 MRTG Monitoring Bandwidth Page 23

24 Intrusion Detection Page 24

25 The Future Integration " Total duplication of NT Domain Services (Samba TNG) " Even better SMB support " Complete compatibility with Novel NDS " LDAP " Better support for IPX and SPX " Appletalk " NFS v3 Page 25

26 The Future Support " All old computer companies (IBM, Intel, HP) " Computer suppliers (Dell, Compaq, Gateway) " Specialized Linux companies (LinuxCare, VALinux, RedHat) " Local consulting companies (Real Time) " Your own staff " Linux User Groups " Linux community " Open Source Community Page 26

27 Conclusion " Linux is a viable alternative for your business needs " Linux will only get better with time " The rate at which Linux improves will be substantially quicker than other non open source operating systems " Linux just works! Page 27

28 Why Does Linux Work? Audience feedback... Page 28

29 Why Does Linux Work? " Many Linux users are co developers " Ego trip over noosphere homesteading " Developed and supported via the Internet from day 1 " Built on knowledge and ideas that are 40 years old " It s Open Source Page 29

30 Open Source "Open Source software is a lot like manure, if you spread around it can make things grow. Hording it you just have a pile of stink." Unknown Page 30

31 What is Open Source? " The basic idea behind open source is very simple. When programmers on the Internet can read, redistribute, and modify the source for a piece of software, it evolves. People improve it, people adapt it, people fix bugs. And this can happen at a speed that, if one is used to the slow pace of conventional software development, seems astonishing. " The Cathedral and the Bazaar Page 31

32 Cathedral " Traditional or Closed Software development " The most important software needed to be built like cathedrals, carefully crafted by individual wizards or small bands of mages working in splendid isolation Page 32

33 The Bazaar " Open Software development " Release early and often " Delegate everything you can " Be open to the point of promiscuity " The great babbling bazaar of differing agendas and approaches " Treat the users as co developers Page 33

34 Why use Open Source Software " Increased security through public review " Increased reliability through peer review " Closer to the developers (co developer) " Fast turn around time on bug fixes and patches " You get the source code " You control your destiny Page 34

35 Real Time and Open Source " All products we sell are built with 100% open source tools " Source code is available online " We try to think outside the square " Giving back to the Linux community " Advocate Open Source without being zealots " Business model Page 35

36 Questions and Answers " Questions and Answers Page 36

37 References Real Time: time.com TCLUG: linux.org Open Source The Cathedral and the Bazaar bazaar/ Homesteading the Noosphere GNOME Project KDE Project Page 37

38 Apache Sendmail References IBM 4.ibm.com/software/is/mp/linux/ Intel HP Linuxcare BIND LDAP Page 38

39 Samba: References Linux Advocacy: INDEX 3.html#ss3.2 Dell Computer: Compaq: Gateway: Linux Kernel Archives Java, JSP EJB and Servlets: Page 39

40 References MRTG: staff.ethz.ch/~oetiker/webtools/mrtg/mrtg.html Swatch: Page 40

41 What is Linux? Bob Tanner time.com> Real Time Enterprises, Inc Eden Prairie, MN Page 1

42 What is Linux? Linux Conference Page 2

43 What is Linux? Linux Conference Page 3

44 Linux " Linux is pronounced LYNN ucks " Audio file from Linus himself Page 4 Have Linus queued up for audio play

45 Outline " What is Linux? " What is Linux REALLY? " The Distant Past " The Past " Yesterday " Today " The Future " Conclusions Page 5

46 What is Linux? " Linux is a Unix clone written from scratch by Linus Torvalds with assistance from a loosely knit team of programmers across the Net. It aims towards POSIX compliance. It has all the features you would expect in a modern fully fledged Unix, including true multitasking, virtual memory, shared libraries, demand loading, shared copy on write executables, proper memory management and TCP/IP networking. Page 6

47 What is Linux Really? " Linus under graduate project that is changing the software and computing worlds. " An open source operating system that is free to anyone who wants it. " A very able solution to your business needs. (flexible, scalable, and reliable). " Linux can replace or supplement your current operating system. " It s a different way of thinking Page 7

48 The Distant Past " Workstations were Windows 3.1, 9600 baud, and Trumpet Winsock " Servers were Novell, Banyan Vines or LAN Manager " This was 1993 and only geeks ran Linux " Homebrew system, maintained everything from raw source files " Even then Linux was very able " Linux was not ready for the business world Page 8

49 The Past " Workstations were Windows 95, Windows 98, and 56K/ISDN " Servers were Windows NT, Novell " Slackware then Redhat distributions hit the Internet " Could maintain your system with pre built binaries, with seemless upgrades " Real Time mutated from Consultants to Window Wipers " Microsoft Exchange SID, PDC, BDC, crash/recovery incident Page 9

50 The Past Continues... " Real Time starts to build Linux solutions " Mail Server " Convincing a client " Double as a file server and print server " Churchill decided to beta test the solution " First success " Other clients were more willing to try Linux Page 10

51 Yesterday " Workstations were Windows 95, Windows 98, NT Workstation, DSL/Cable modems " Servers were Windows NT " Redhat goes IPO with a major splash " New distributions, major backing from IBM, Intel, etc " DOJ case against Microsoft " The Internet explodes in size " Hackers, crackers, SPAM mail, and Denial of Service attacks " Linux is ready for the business world Page 11

52 Today " Workstations are Windows 95, Windows 98, NT Workstation and Linux, DSL/Cable modems " Servers are predominately still Windows NT " Businesses get Linux " Windows 2000 upgrade or replacement " Internet security " Active Linux User Groups, like TCLUG " Linux Expo and user education Page 12

53 The Future " Where will Linux be strongest " Where will Linux need to improve " Workstations " Servers " Internet " Security " Integration " Support Page 13

54 Linux Strength " Internet servers (web, mail, dns, and ldap) " Corporate servers (file, print and intranet web) " Return on Investment " Stability " Flexibility " Integration " Ease of use Page 14

55 Linux Strength Page 15

56 Where Linux Needs to Improve " Hardware support (drivers and detection) " Richer application environment " More business applications " Zealots, anti Microsoft attitudes " Don t over promise Linux capabilities Page 16

57 The Future Workstations " Windows will always be here " GNOME 2.0 " KDE 2.0 " GNOME Office Suite " KOffice " StarOffice " WordPerfect Office " Applixware " VMWare Page 17

58 GNOME Page 18

59 KDE Page 19

60 The Future Servers " Windows will always be here " Apache " Sendmail " DNS " Directory Services (LDAP and NDS) " Application Servers (JSP, Servlets, EJB) " File and Print " Databases Page 20

61 The Future The Internet " Security " Firewall " Loghost " Monitor " Intrusion detection Page 21

62 Real Time Monitoring Page 22

63 MRTG Monitoring Bandwidth Page 23

64 Intrusion Detection Page 24

65 The Future Integration " Total duplication of NT Domain Services (Samba TNG) " Even better SMB support " Complete compatibility with Novel NDS " LDAP " Better support for IPX and SPX " Appletalk " NFS v3 Page 25 This is some notes.

66 The Future Support " All old computer companies (IBM, Intel, HP) " Computer suppliers (Dell, Compaq, Gateway) " Specialized Linux companies (LinuxCare, VALinux, RedHat) " Local consulting companies (Real Time) " Your own staff " Linux User Groups " Linux community " Open Source Community Page 26 Complete listing of references in your handouts Your staff. Might have several linux lurkers, people who run it at home already

67 Conclusion " Linux is a viable alternative for your business needs " Linux will only get better with time " The rate at which Linux improves will be substantially quicker than other non open source operating systems " Linux just works! Page 27

68 Why Does Linux Work? Audience feedback... Page 28

69 Why Does Linux Work? " Many Linux users are co developers " Ego trip over noosphere homesteading " Developed and supported via the Internet from day 1 " Built on knowledge and ideas that are 40 years old " It s Open Source Page 29

70 Open Source "Open Source software is a lot like manure, if you spread around it can make things grow. Hording it you just have a pile of stink." Unknown Page 30

71 What is Open Source? " The basic idea behind open source is very simple. When programmers on the Internet can read, redistribute, and modify the source for a piece of software, it evolves. People improve it, people adapt it, people fix bugs. And this can happen at a speed that, if one is used to the slow pace of conventional software development, seems astonishing. " The Cathedral and the Bazaar Page 31

72 Cathedral " Traditional or Closed Software development " The most important software needed to be built like cathedrals, carefully crafted by individual wizards or small bands of mages working in splendid isolation Page 32

73 The Bazaar " Open Software development " Release early and often " Delegate everything you can " Be open to the point of promiscuity " The great babbling bazaar of differing agendas and approaches " Treat the users as co developers Page 33

74 Why use Open Source Software " Increased security through public review " Increased reliability through peer review " Closer to the developers (co developer) " Fast turn around time on bug fixes and patches " You get the source code " You control your destiny Page 34 Because you can get access to source, you can survive the collapse of your vendor You re no longer totally at the mercy of unfixed bugs. You re not shackled to every strategic decision your vendor makes. And if your vendor s support fees become exorbitant, you can buy support from elsewhere.

75 Real Time and Open Source " All products we sell are built with 100% open source tools " Source code is available online " We try to think outside the square " Giving back to the Linux community " Advocate Open Source without being zealots " Business model Page 35 Business model. Solution is the most important aspect, not just the product.

76 Questions and Answers " Questions and Answers Page 36

77 References Real Time: time.com TCLUG: linux.org Open Source The Cathedral and the Bazaar bazaar/ Homesteading the Noosphere GNOME Project KDE Project Page 37

78 References Apache Sendmail IBM 4.ibm.com/software/is/mp/linux/ Intel HP Linuxcare BIND LDAP Page 38

79 References Samba: Linux Advocacy: INDEX 3.html#ss3.2 Dell Computer: Compaq: Gateway: Linux Kernel Archives Java, JSP EJB and Servlets: Page 39

80 References MRTG: staff.ethz.ch/~oetiker/webtools/mrtg/mrtg.html Swatch: Page 40

The Cathedral and the Bazaar

The Cathedral and the Bazaar This text (including older revisions of it) Described a set of customs among Free Software developers Those customs turned out to be a quite effective development methology