The Journal of AUUG Inc. Volume 24 ¯ Number 2 June 2003 Features: Microsoftens 10 OpenBSD 3.3 Released 11 Linux System’ Administrator’s Security Guide (Part 1) 15 The Roadman for FreBSD 5-stable 20 Mail and Dynamic IP 24 Intrusion Detection System (Part 1) 25 FreeBSD 5.1 Release Process 40 SCO-vs.-IBM: the Open Source Initiative Position Paper on the Complaint 41 AUUG 2003 Systems Administration Symposium Photo Gallery 57 NetBSD 1.6.1 CD 58 News: Public Notices 4 AUUG: Corporate Members 9 AUUG Conference 2003 Invitation 59 AUUG Membership Renewal 61 AUUG: Chapter Meetings and Contact Details 63 Regulars: President’s Column 3 My Home Network 4 ISSN 1035-7521 Print post approved by Australia Post - PP2391500002 AUUG Membership and General Correspondence The AUUG Secretary PO Box 7071 Edi oria Baulkham Hills BC NSW 2153 Con Zymaris auu.qn@auu,q.or,q.au Telephone: 02 8824 9511 or 1800 625 655 (Toll-Free) I imagine I’m not alone in expressing fond memories Facsimile: 02 8824 9522 Email: [email protected] of both Carl Sagan and Stephen Jay Gould. Both of these gentleman were not only practicing scientists AUUG Management Committee but also exemplary communicators of science and of Email: [email protected] the technical, complex and beautiful cosmos that we inhabit. President Greg Lehey PO Box 460 Through his combination of vision and chutzpah, Echunga, SA, 5153 Sagan caused us to pause for a moment and consider Bus. Tel (08) 8388 8286, Mobile 0418 838 708, Fax (08) 8388 8725 the majesty of star-stuff, of galaxies and of the human <[email protected]> discourse which ensued over millennia in trying to Immediate Past President reveal their secrets. Gould focused on that most David Purdue amazing and subversive of ideas, Darwin’s evolution Sun Microsystems through natural selection, on timescales of geological Level 6,476 St Kilda Road Melbourne, Victoria, 3004 significance and on the misguidedness of Phone: +61 3 9869 6412, Fax: +61 3 9869 6288 Creationism. Together, they offered the laity the most <[email protected]> infectiously interesting, mind expanding glimpse into what true science, thoughtful reasoning and nature in Vice-president Malcolm Caldwell toto have to offer. Bus. Tel (08) 8946 6631, Fax (08) 8946 6630 <[email protected]> Gould once quipped that he and Sagan (who were essentially contemporaries, both growing up in the Secretary David Bullock same New York burrough) were destined for Biology 0402 901 228 and Astronomy in that order, as he was short, and <[email protected]> Sagan was tall; one looked downwards and the other up. It was this practice of folding seemingly trivial Tl:easurer Gordon Hubbard human stories and interests into big-picture hard Custom Technology Australia Pty Ltd science, which made both writers so compelling. It’s Level 22, 259 George Street, Sydney NSW 2000 what led to many non-scientists beginning to Bus Tel: 02 9659 9590, Bus Fax: 02 9659 9510 understand, perhaps for the first time, the processes <Gordon. H u bbard@au ug.org.au> by which science progresses. The randomness, the Committee Members contingencies, the haphazardness complexity of it all. Sarah Bolderoff It’s part of the wonder and it’s what holds our FourSticks interest. It inculcated science in hundreds of millions. Suite 2, 259 Glen Osmond Rd, Frewvilte, South Australia, 5065 And it’s what we in the technical sphere of the <[email protected]> computing realm need to learn and begin practicing. Adrian Close It seems to me that many non-computer-scientists Ph: +61 7 5596 2277 Fax: +61 7 5596 6099 are rushing to define how we technologists should go Mobile: +61 417 346 094 st <[email protected]> about plying the science of computers in the 21 century. What we should and shouldn’t be able to do. Stephen Rothwell What becomes legal and illegal. What the tenets of IBM Australia, Linux Technology Center 8 Brisbane Ave, Barton ACT 2600 proof shall be in disputed issues. What standards Business phone: 02 62121169 should be adopted. What platforms should be <[email protected]> preferred. In all, complex issues made even more opaque for non-technologists through lack of training, Andrew Rutherford lagu Networks, 244 Pirie St lack of experience and lack of an overall gut feel for Adelaide, SA, 5000 the technologies themselves and how they will begin Bus. Tel (08) 8425 2201, Bus. Fax (08) 8425 2299 to impact the future of humanity. <[email protected]> Mark White Why are groups like AUUG’s members well placed to apviva technology partners help bring about an increased enlightenment amongst P. O. Box 1870, Toowong QLD 4066 the IT laity?. To be franl;, it all boris down to having Bus Tel 07 3876 8779, Mobile 04 3890 0880 the kind of mind that just gets ’it’. Further, this <Mark.White@au ug.org.au> change of life that is happening, this alteration in our future living patterns brought about by the AUUG Business Manager proliferation of technology, is something that our Elizabeth Carroll group has lived through already. I extend to you a PO Box 7071, Baulkham Hills BC NSW 2153 challenge: few are better placed to reach out and Telephone: 02 8824 9511 <busmgr(~auug.org.au> enlighten. Do so, for our future’s sake. Cheers, Con AUUGN Vol.24, No.2 - 1 - June 2003 AUUGN Editorial Committee C niribuiio The AUUGN Editorial Committee can be reached by sending emil to: auu,~n@auu~.or~.au Deadlines for AUUGN Or to the following address: in 2093 AUUGN Editor Editor: Con Zymaris Volume 24 ~ Number 3 - September 2003: August PO Box 7071 Baulkham Hills BC NSW 2153 30t~,, 2003 Sub-Editors: Volume 24 o Number 4 - December 2003: November Frank Crawford, Mark White th, 15 2003 Contributors: This issue would not have happened without the transcription and editorial efforts of Gary R. Schmidt" <,[email protected]>, Rik Harris <[email protected]>, Raymond Smith <[email protected]>, David Lloyd <[email protected]>, Peter Sandilands <[email protected]>, Stephen Jenkin <sienkin~.pcug.or.q.au>, Cameron Strom AUUG Incorporated gratefully acknowledges <[email protected]> the support of its corporate sponsor: Public Relations and Marketing: Elizabeth Carroll AUUGN Submission Guidelines Submission guidelines for AUUGN contributions can be obtained from the AUUG World Wide Web site at: ¯ www.auug.org.au Alternately, send email to the above correspondence address, requesting a copy. AUUGN Back Issues A variety of back issues of AUUGN are still available. For price and availability please contact the AUUG Secretariat, or write to: AUUG Inc. Back Issues Department PO Box 7071 Baulkham Hills BC NSW 2153 Telephone: 02 8824 9511 Conference Proceedings A limited number of copies of the Conference Proceedings from previous AUUG Conferences are still available. Contact the AUUG Secretariat for details. Mailing Lists Enquiries regarding the purchase of the AUUGN mailing list should be directed to the AUUG Secretariat. Disclaimer Opinions expressed by the authors and reviewers are not necessarily those of AUUG Inc., its Journal, or its editorial committee. Copyright Information Copyright © 2003 AUUG Inc. All rights reserved. Portions © by their respective authors, and released under specified licences. AUUGN is the journal of AUUG Inc., an organisation with the aim of promoting knowledge and understanding of Open Systems, including, but not restricted to, the UNIX@ operating system, user interfaces, graphics, networking, programming and development environments and related standards. Copyright without fee is permitted, provided that copies are made without modification, and are not made or distributed for commercial advantage. AUUGN Vol.24 ¢ No.2 - 2 - June 2003 site at President’s C lumn http: //www. auug, org. au/publications/press / SCO- stance.html. The following day revealed the most Greg Lehey <Gre,q.Lehey@auu,qoor,q.au> obvious reason why it’s ridiculous: Novell issued the Over the decades, UNIX has had a number of text of a letter to SCO which shot the latter down in brushes with lawyers. AUUG has been spared most flames: problems, but our sister organization, USENIX, has http://www.novell, com/news/press/archive/2003/0 had its share. As you probably know, the USENIX 5/pr03033.html. Apart from asserting their journal ;login: was originally called UNIX NEWS. Inownership of UNIX System V (SCO is only a licensee), June 1977, the group which was to become USENIX they pointed out that they love Linux, and that SCO were told by an AT&T lawyer that they were not was only spreading FUD. That doesn’t quite close the allowed to use the word UNIX, a trademark of case, though: even if SCO folds in the near future, Western Electric. This was the reason for the name which I personally consider very possible, the change, and also for the choice of the name USENIX accusation stands: does Linux really contain restricted UNIX code? Since the free release of when the group finally got a name. For similar reasons, AUUG is called AUUG, which does not stand ancient UNIX, it can contain code derived from that for "Australian UNIX Users Group". Well, not source ff it wants. officially, anyway: call it what you will. I consider it pretty unlikely that there’s any restricted UNIX code in Linux. For most of the code, it simply AT&T’s lawyers considered even the name USENIX to wouldn’t be worth the trouble. In the case of be a dilution of the name UNIX. More importantly, of BSD/386 ten years ago, code was found that looked course, they strongly regulated the use of the UNIX pretty similar to the Seventh Edition code; it had code, which was initially available only to universities.