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Samba 3 By Example

ALecs writes "When I first discovered Samba, I was in heaven! I could serve my Linux filesystems to my Windows 95 desktop and life was good. Between then and now, though, Samba has gotten a lot more capabilities, and I've been struggling to keep up with the cryptic voodoo that is Windows networking. While 'The Official Samba-3 HOWTO and Resource Guide' has been a great resource, Samba seems to just be once of those packages that you just need to see in action to understand. Hearing my cries, and those of countless others, John H. Terpstra has bestowed upon the Samba community the tome of ancient knowledge sought by all: Samba 3 By Example: Practical Exercises to Successful Deployment ." Read on for the rest of Malone's review. Samba 3 By Example: Practical Exercises to Successful Deployment author John H. Terpstra pages 340 publisher Prentice Hall PTR rating 10 reviewer Joshua Malone ISBN 0131472216 summary Working examples to use Samba 3 in small or large office

Samba 3 By Example begins on a very friendly note by explaining how to get the most out of it any what you'll need to complete the exercises in the rest of the book. The beginning also includes a Windows networking primer, complete with packet captures (using the popular tool 'ethereal') showing how network browsing really works, under the hood.

This book follows the evolution of a fictitious company, "Abmas", through an impossible growth from a 9-person office to a 2000-person network with multiple sites around the world. You assume the role of the IT guy: charged with growing the company's network infrastructure, planning for change and, above all, keeping the users happy.

Some of the major challenges tackled in this book are:

  • Using Samba-3 as an NT-4 style PDC
  • Using Samba-3 as an domain member server
  • Using the various authentication backends as alternatives to the traditional 'smbpasswd' backend
  • Using LDAP to implement a Samba-3 PDC with backup domain controllers
  • Authentication using winbindd
  • Migrating from NT-4 to Samba-3 for a PDC
  • Using kerberos to integrate Samba-3 into a Microsoft Active Directory domain (as a domain member server)

I am extremely impressed by Terpstra's book. It addresses the complete spectrum of Samba deployments, from the 10-person office to the 2000-seat, multi-site enterprise while explaining not just what to do, but how to do it and, most importantly, why. The examples are practical and you can really imagine some poor sap^H^H^H^H^H^H^H^H unfortunate systems administrator finding him/herself in these very positions. This book says that these scenarios are hypothetical aggregations of real-world situations, but could swear I've worked for this company before.

One of the nicest things about this book is that each situation is followed by a Q&A section - almost like a textbook - that addresses both the important points of the exercise, as well as some of the trivial details that were left out for the sake of brevity. Don't be tempted to skip them thinking that it's just a rehash.

It's worth noting that this book is not a replacement for TOSHARG and defers to it for technical details in multiple cases. These two books should be sidearms for any IT administrator that has to deal with Windows clients on a daily basis.

I'm also very impressed with Terpstra's candor about Samba's features, weaknesses and road map. Nowhere in this book is Windows put down as inferior or is Samba touted as the "be-all, end-all" of Desktop and client management solutions. The relative flexibility of Active Directory and Samba is discussed only briefly and the choice to use Samba over Windows is ultimately left to the reader. Since you've gone to the trouble of purchasing this book, Terpstra assumes you've already made up your mind and require no further convincing.

Continuing to be mindful of office politics, Terpstra devotes a section in each chapter to the political implications of replacing Windows with an open source product, and an entire chapter to the issues inherent in bringing Samba into a traditionally Windows-based shop. Even though he refers to this chapter as a "shameless self-promotion of Samba-3", I found it to be an even-handed discussion of the issues you will most likely encounter from anti-Unix advocates and IT managers who have bought into the anti-Linux FUD. These are real issues that Systems Administrators need to know how to deal with effectively but too many of us simply dismiss because we feel they are uninformed.

In addition to examples of Samba configuration, examples are provided to integrate Samba with other useful servers such as the squid web proxy, OpenLDAP, bind and dhcpd. The configuration files for Samba as well as these additional pieces of software are also conveniently located on the included CD-ROM, along with Samba 3.0.2 packages for Red Hat Fedora Core 1 and SuSE Linux (Enterprise server 8 for x86 and s390 and SuSE Linux 9).

I think my biggest complaint with this book is that the "case study"-like format of this book tends to lump a large number of new features into a single example. This can make it hard to isolate the particular feature that you're interested in.

For instance, the example that illustrates automatic printer driver downloads to Windows clients is lumped into a chapter that is primarily concerned with using LDAP to implement a BDC. Automatic driver installation is a great feature that many sites far too small to consider implementing LDAP would likely be interested in.

In all, though, I'm extremely pleased with Samba 3 by Example - perhaps even more than TOSHARG. In it, you'll find plenty of tips, working examples and honest admissions of bugs (and their workarounds) that will keep you from losing your sanity. You could almost call this book a 300 page Samba and Windows networking consultant with over 8 years of experience. Terpstra has been incredibly kind to the Samba community by imparting so much wisdom to us all in this book.

Josh Malone has been a FreeBSD and Windows system administrator for three and a half years working in development shops and hosting companies, and currently works as a Linux engineer for an embedded systems company. You can purchase Samba 3 By Example from bn.com. Slashdot welcomes readers' book reviews -- to see your own review here, read the book review guidelines, then visit the submission page

53 of 195 comments (clear)

  1. Samba by example? by Deraj+DeZine · · Score: 4, Funny

    Cool, I've always wanted to learn how to samba.

    --
    True story.
    1. Re:Samba by example? by 74nova · · Score: 3, Funny

      holy crap, after seeing those picture, me too!

      --
      use your turn signal! you people act like it's divulging information to the enemy
    2. Re:Samba by example? by OzPeter · · Score: 3

      As someone who has been invoved in latin dance in various forms (salsa, meringue, cha-cha, argentine tango, samba, rhumba, bolero etc) over the last few years I can attest to the fact that learning to dance is fun thing to do and that you can meet lots of cute and friendly people of the opposite sex. Which is how I met my current gf.

      Whats even better is that in order to dance these dances well, you NEED to hold your partner in a close embrace. And you can't complain about that.

      Another plus is that social latin dancing is done in places like public bars, but the atmosphere of the dance set is not 'meat market'. Thus it gives you a solid framework to get out in public that is not confrontationist. In my job where I do a bit of world travel, I always try and find the local dance places for some non work social life, and as a result have had some really fun times away from home.

      On a final note, Samba is a Brazilian dance, and I can attest that all the Brazilians I have met have been fun loving people, and that the country is a great one to go and visit :-)

      --
      I am Slashdot. Are you Slashdot as well?
  2. samba rocks by jacquesm · · Score: 4, Insightful

    Samba is probably one of the largest driving forces enabling people to migrate away from windows servers. It's a cornerstone of lots of offices that I have visited.

  3. Kerberos Authentication by jmulvey · · Score: 4, Interesting

    So does Samba-3 support the "trade secret" PAC information that Microsoft inserted into their Kerberos tickets (to great consternation of the Kerberos community)?

    1. Re:Kerberos Authentication by ALecs · · Score: 4, Informative

      The most recent Samba-3 code now supports 'schannel' and "digital sign'n'seal" for joining an active directory domain. It cannot act as an ADS domain controller - only a member server

    2. Re:Kerberos Authentication by lkaos · · Score: 3, Informative

      Samba can decode the PAC. I don't believe it actually using the information yet.

      This is because before using the information, you have to verify the signatures (to ensure the data hasn't been forged). Making use of the information in the PAC is on the TODO list though as it will result in a nice performance increase in some areas.

      And the PAC certainly doesn't violate any of the kerberos standards. Placing implementation specific information in the authorization data is what it's there for.

      --
      int func(int a);
      func((b += 3, b));
    3. Re:Kerberos Authentication by ALecs · · Score: 4, Informative

      I should also clarify that samba-3 can join as a Win2K member server and not just a legacy NT-4 server. The difference is in how you join the samba server to the domain.

      Use 'net ads join' to join as a Win2K member. If you use the older 'net rpc join' command, you're just doing NT-4 domain membership. Chapter 9 in the book covers Active Directory interoperation. The interoperability code is in Samba, not Kerberos.

    4. Re:Kerberos Authentication by Etyenne · · Score: 2, Informative

      According to Jeremy Allison, documentation for the PAC have been released by Microsoft, except the license to said documentation was too restrictive to be used by the Samba team.

      See http://linuxtoday.com/news_story.php3?ltsn=2000-05 -01-005-04-NW

      --
      :wq
  4. Re:Question: by jmays · · Score: 4, Informative

    It's a free, robust, easy to admin file server and DC with impeccable reliability.

    --
    KARMA TAG! You're it.
  5. excellent! i have been looking for this by iwein · · Score: 4, Interesting

    after my first experience with samba (opposed to windows 2k server) i was highly enthousiastic but being one of the lesser linux geeks around i had some difficulty setting it up.

    overall my impression is that in total i suppose you would need less time to set up and maintain a nice samba server than a w2k server, even if it is your first time installing linux.

    with the help of this book it will become even simpler....

    yay.

    --
    Show a man some news, distract him for an hour. Show a man some mod points, distract him for the rest of his life.
    1. Re:excellent! i have been looking for this by Smallpond · · Score: 5, Funny

      I don't know what you're talking about. smb.conf is almost as easy as sendmail.cf. It has helpful comments like:

      ; 7: Look at the "hosts allow" option, unless you want everyone on the internet
      ; to be able to access your files.

      Well, I looked at it and they could still access my files.

    2. Re:excellent! i have been looking for this by mangu · · Score: 2, Informative
      it is very difficult to set up and make work correctly


      I recently upgraded two of my MS-Windows machines at home, put a GeForce fx5200 video card in my desktop and got a new HP/Compaq notebook with XP pre-installed. The main reason I still keep M$ machines is for games, and Need For Speed - Porsche Unleashed happens to be one of my favorites. It took me several weeks to get it working in the notebook, and it still doesn't work on the desktop.


      Compared to this, configuring Linux machines is easy. Usually you just need to look in the log files for error messages and paste the message text in a Google search to get the info you need to get it working.

    3. Re:excellent! i have been looking for this by agrippa_cash · · Score: 4, Informative

      I have been trying for MONTHS (on and off) to get SAMBA 3 working with LDAP. I got 2.2 working OK, so I'm not a complete idot. Still this book may be a good investment. For those who are interested the University of Navarra has a 3.0 HOWto and there is a 2.2 Howto (that I used sucessfully) at homex.subnet.at/~max/ldap.

    4. Re:excellent! i have been looking for this by Lussarn · · Score: 3, Insightful

      It's like they say. Windows is easy until something breaks. Then you are screwed.

    5. Re:excellent! i have been looking for this by Dolda2000 · · Score: 2, Informative
      Seriously, Samba isn't easy to set up. I don't consider myself a lesser geek anymore, since I can set up virtually anything else I've tried without trouble (yes, that includes sendmail.cf), but I've more or less given up on Samba.

      Of course, the Samba developers shouldn't be blamed for that. I suppose that learning the black arts of Windows networking is about as logical as Windows itself, after all.

    6. Re:excellent! i have been looking for this by bfg9000 · · Score: 5, Funny
      How about the full version of that saying:
      Windows is easy until something breaks, then you're screwed.

      Macs work perfect, or they don't work at all -- if your hardware has no drivers, then you're screwed.

      Linux -- well, you're just screwed. But you'll only be half as screwed next year, and half that screwed the year after that. Give it 10 years and a bunch of geeks tired of being screwed all the time will rule the world.
      --

      I'm not normally an irrational zealous dickhead, but I figure "When in Rome..."

    7. Re:excellent! i have been looking for this by puddpunk · · Score: 2, Insightful

      The main reason I still keep M$ machines is for games, and Need For Speed - Porsche Unleashed happens to be one of my favorites.

      Get a Playstation! Thats what I did and since have been able to kiss windows goodbye and still play games that I like.

  6. Re:Question: by edk1 · · Score: 3, Informative

    From what I recall, the file sharing benchmarks have proven to be faster, and best of all, no license fees for Windows Server. Also, the server itself will be immune to Windows viruses.

  7. almost 40% at bookpool.com by blkwolf · · Score: 4, Informative
    1. Re:almost 40% at bookpool.com by gadders · · Score: 2, Funny

      And with your referral code in the URL too!

    2. Re:almost 40% at bookpool.com by blackmonday · · Score: 3, Insightful

      Yes I know you were being funny: That's not a refferal ID, but even if it was, who cares? it wouldn't cost you any more money to buy it, and he gets some cash for spreading the word around. I don't see the angst against them on Slashdot.

  8. "By Example" books a great idea by proxima · · Score: 4, Interesting

    Obviously teaching things by example is not new, but far too many computer books on too many subjects (especially programming) don't use enough examples to illustrate their points. Some just use poor examples.

    Samba is one of those setups where the total amount of functionality is far more than many users need, so a collection of well-designed examples will greatly speed one's implementation (and reduce common security problems). Fortunately the default config file has improved in Samba to the point where it's not too difficult to setup basic printer/filesystem sharing.

    These "cookbook" style books obviously can't replace a reference, but they often are more useful as a starting point. I've spent over five years on unix systems now, but I still groan at the lack of examples in the man pages of more obscure command line software. Google often comes through, provided I can think of a good phrase that describes what I'm trying to do ("search and replace with perl command line" - perl -pi -e 's/searchterm/replaceterm/g' [filenames], btw).

    --
    "The universe seems neither benign nor hostile, merely indifferent." --Carl Sagan
  9. little known fact by mirko · · Score: 3, Insightful

    Samba 3 is used by Panther (OSX3) since the beginning.

    --
    Trolling using another account since 2005.
    1. Re:little known fact by amunter · · Score: 4, Informative

      Yes, and at the recent FOSE expo in DC the Apple guy that was standing under the sign in the Apple booth that said "LDAP and Kerberos" showed me how easy it was to use.

      It uses all the normal Apple GUI type controls which basically take care of all of the configuration changes to smb.conf and krb5.conf. Basically a slick "apple looking" configuration file editor. I thought SWAT made samba configuration pretty easy, but this Apple stuff is great. Really cool stuff.

  10. adds stability to Win9x/ME workgroups by RogL · · Score: 5, Interesting

    I have limited Samba experience, but have found that my 5-box home network became much more stable after allowing Samba to become a browse master. We had occasional issues with printers dropping offline, files copyable one direction but not another, odd hangs where the only solution was a power-off reset, bringing boxes up in sequence.

    Once I installed Samba on my main OpenBSD server, things quieted down. Took a few weeks before I realized: no Windows "hiccups" had happened! It's stayed that way for months now. I may have gotten the same effect by setting up a Windows PDC, but I don't have a "dedicated" box new enough to be useful for that. At this point, even if I don't need the shares, I'll leave it running just to stabilize the wife's WinME box!

    1. Re:adds stability to Win9x/ME workgroups by Anonymous Coward · · Score: 2, Informative

      Actually, that's mostly not true. Windows 95 and 98 can join domains, and so can ME. It's Windows XP Home that doesn't have the domain logon feature.

      Businesses have been using Win95/98 systems on domains (Windows NT) and Netware networks for years. Windows ME can logon to and utilize an NT domain but there is no official Netware client for ME...not that I've heard of anyone using WinME with a Netware server.

    2. Re:adds stability to Win9x/ME workgroups by mtnharo · · Score: 3, Insightful
      He wasn't really talking about using domains though. He mentioned setting up Samba as a "Master Browser." On a domainless network, one of the machines becomes the "master browser," which all of the other machines look to for info on who is on the network.

      It sounds like a good idea, but in practice, if the master browser changes or is rebooted, the other machines in the workgroup won't be able to find network resources unless they are restarted too. This is usually the source of most network issues with Windows on home networks. By setting up a samba machine that is always and never gives up "master browser" status, the table of which machines are on the network remains available.

    3. Re:adds stability to Win9x/ME workgroups by cloudmaster · · Score: 4, Informative

      WinME can authenticate against a domain, just as every (networkable) version of windows is able to. That login is then used when connecting to any network shares. Anyway, when the poster said "Domain Master" he probably meant "Browse Master", since what was the problems being caused were probably a result of browser elections, etc, and not domain logon issues.

      Every version of windows after Win 95 SP1 uses encrypted passwords by default. That includes WinME. You have to apply a registry change (documented in the docs/Registry/ directory of your samba source distro) to make them use clear text passwords.

      Linux authenticating against LDAP isn't very hard - most of the newer distros just require a couple button presses to set that up, and you should check out PADL's site (padl.com, IIRC) for scripts to migrate your /etc files to LDAP. Or check out my howto, which is generally near the top of a google search for "linux ldap authentication" or similar. Samba-to-LDAP is also easy, if you follow the step-by-step readme's that are all over the place (including examples/LDAP/ in the samba source distro).

      That 485 page PDF document bundled with the current Samba distro is really a useful read.

      BTW, calling people stupid doesn't help much, esp when you're wrong. ;)

  11. Samba Cryptic? by timeOday · · Score: 4, Interesting

    I have found Samba very workable and not too hard to set up. At first I only thought of Samba as a hack to interoperate with Windows and assumed NFS was better. But over a few years I've had a number of troubles with NFS, from timeouts to UID translation to large file support (on Linux - I'm sure NFS is better on Solaris!) Finally I realized that Samba is not just a scab, it works fine and is easy to set up. Now I use it even to network Linux boxes. Sure Samba's guts might be messy but it doesn't seem to hurt anything.

    1. Re:Samba Cryptic? by Anonymous Coward · · Score: 2, Interesting

      We recently switched to Samba from NT and it sped up significantly. The regular Samba fork is pretty easy to set up for file serving but my experience with setting it up as a domain controller for Win2000/XP was like sitting down on a cactus and bouncing up and down. Yes, I applied the registry hacks, and yes, I had the server set up properly, but I could not get Win2000 or XP (Professional) to login to the domain. Ended up going with Samba-TNG, which out of the box worked with 2000/XP Pro. Sure hope they incorporate some of the niftier config options into Samba-TNG, though, cause I had to give those up for proper domain control.

      Overall, I like it. Unlike NT, on a Dual PIII with 768Mb of memory and Ultra160 SCSI drives, Linux with Samba is faster, more stable, more secure (I think), easier to admin, and cheaper. I could not be happier. I now plan to set up more Linux boxen for other stuff on the network (mail, routing, etc.).

  12. 30% off the price for UK readers by Nighttime · · Score: 4, Informative

    This book is currently available through The Register's bookshop with 30% off to UK readers.

    --
    I've got a fever and the only prescription is more COBOL.
  13. Tried Samba 3.0.2a... by Dimensio · · Score: 3, Informative

    ...went back to 2.2.8a because for some reason it wasn't handling symbolic links properly. The drive containing the network share was running out of space, so I set up additional space on another drive and made a symlink to the location (yes, I used all lowercase letters in the symlink). Trying to access the directory with the 3.0.2a server resulted in a "Not a directory" error. It works properly in 2.2.8a, though.

  14. We're talking about Samba and Linux here... by gfhilton · · Score: 3, Insightful
    I've been struggling to keep up with the cryptic voodoo that is Windows networking.


    The cryptic voodoo I struggle to keep up with is Samba and Linux itself. Setting up networking, even advanced domain stuff, in Windows is very easy in comparison. Hence books like this one.

    I don't mean to troll, but one of Linux's biggest problems from a usability point of view is that there is no central place where configuration information is stored (aka the "hated" registry in Windows). It's supposed to end up in /etc but many times it doesn't and instead it's all scattered around in hundreds of tiny text files with various different formats that one must search out and edit. This is one of the (many) things that make it very difficult to set up or configure anything in Linux, be it hardware or software.

    I think we would all be better off if the Linux community would work on fixing usability problems and making Linux more unified instead of continually adding new features. And if that sounds like many criticisms of Microsoft you've heard, then so be it.
    --
    "Do what you wish in your madness, but first let me down off this horse. I wish to see no eyes!"
    1. Re:We're talking about Samba and Linux here... by cbiltcliffe · · Score: 4, Insightful
      It's supposed to end up in /etc but many times it doesn't and instead it's all scattered around in hundreds of tiny text files with various different formats that one must search out and edit.


      You mean like the 229 .ini files that are on my Windows 2000 machine, in various places in 'Program Files', 'WINNT', 'WINNT\System32', etc.etc?

      Seriously...I don't know what Linux distro you're using......I've heard this comment before, and out of the few dozen I've tried, nothing ever stored configuration information in more than two places:

      1) /etc and, for some programs with lots of config files, subdirectories of /etc dedicated to the one program.
      2) hidden directories in the user's home directory, for personal configuration files, rather than system-wide.

      Anything that's in the user's home directory is set by the interface of whatever program they're running, though, so you hardly need to 'search out and edit' files that are in 'various different formats'.

      If you're going to spread FUD, at least spread something that's true.
      Oh...wait.....that would mean it wouldn't be FUD, wouldn't it?
      --
      "City hall" in German is "Rathaus" Kinda explains a few things......
    2. Re:We're talking about Samba and Linux here... by Whatchamacallit · · Score: 2, Insightful

      Yeah with a single point of failure on two binary files! I have no idea how many registries I've had to repair, replace, or just end up reloading Windows to fix but it's up in the 6 figure range!

      MS needs to freaking put in some better backup and auto-recover features for the registry! It's far to vital to rely on a Sysadmin backing it up on a regular basis. There needs to be a multi-layered backup going back several days. Sure you can do a system restore but it's not rock solid enough and scares the hell out of most people. Go-Back was and is much more reliable and easier to understand then the first generation Microsoft System Restore feature. The registry should be backed up after every single successful reboot and one should have at least 4-5 choices to roll it back to if there is a problem. You should be able to do this at boot time when the registry has an issue being read or written to. A dialog should popup and ask if you wish to switch the current registry files to the backed up ones.

      Linux scatters INI like configuration files in a variety of locations and the format varies. But at least if your Samba.conf file gets hosed, it won't blow out everything else along with it. Say it's truly corrupted, you can at least edit the sucker with vi / emacs and fix the glitch. With a binary registry file you're fucked.

      Apple's got it right with their XML .plist files and the Property List editor to read and edit them. You can edit them with any text editor as well. In addition there are full command line tools that are vastly superior to the Windows command line tools. It's easy to write Cocoa/Carbon apps that use a .plist file to store default settings and preferences. Most apps if they follow the recommendation will have the ability to regenerate an applications .plist file if it's deleted. Before Apple came out with Journaled HFS+, there were many file corruption issues (all fixable with a permissions check and running a disk util). The new Journaled HFS+ is pretty darn solid, I haven't had a corrupted file ever since the journaling was added in Jaguar (it was there in Jaguar but you had to turn it on via a system hack in Panther it's on by default via the Disk Utility).

  15. Samba vs. NFS by hey · · Score: 2, Interesting

    Just wondering... if you have a all Linux office does anyone choose Samba over NFS?

    1. Re:Samba vs. NFS by jrcamp · · Score: 2, Insightful

      Such as I expected. I can't believe there isn't a huge drive from RedHat, SuSE, IBM, etc. to get NFSv4 complete and up to par with Windows when it comes to network file sharing. I would never deploy NFS in an enterprise with its current state.

    2. Re:Samba vs. NFS by Dolda2000 · · Score: 5, Informative
      Unfortunately, that's the case right now. NFS is supposed to be used in secure environments.

      However, that's going to change. There is already support for RPC security when using NFSv4 in Linux 2.6. That way, you can use Kerberos authentication and encryption for your NFS exports, and all is well. It's still marked as experimental, but I suspect it to be mature before long.

      All that already works on Solaris, of course.

    3. Re:Samba vs. NFS by slide-rule · · Score: 2, Informative

      You implied work/office, but on my home LAN of 3 machines (two dual' into '98), I gave up on NFS and went fully-samba. I might not have had NFS *properly* config'ed through and through, but my home network is fairly simple. Still, I'd have occasional problems with NFS/automount hanging up somewhere causing machines to *not* be able to shutdown properly. (It'd hang the shutdown scripts.) Since I went all-samba (even for the all-Linux aspect of the network) this just doesn't happen to me anymore, so samba/automount seems more tolerant of oddball problems. (YMMV)

  16. There's also O'Reilly's free Using Samba online... by phallstrom · · Score: 5, Informative

    http://www.oreilly.com/catalog/samba2/book/toc.htm l

  17. Why aren't tech authors into "free as in beer?" by stratjakt · · Score: 2, Insightful

    I've been struggling to get my samba PDC (and by extension every windows box on my network) and linux to authenticate against a single source, an LDAP server.

    Of course, this means learning not only what LDAP is , but how to configure and test it, etc.. OpenLDAP wasnt the toughest nut to crack, but it's configuration files are out there in wackyland. This is as far as I've gotten.

    Then getting samba and other services to auth against it. Of course, to use pam_ldap.so I need to have linux boxes that use PAM, and getting that running on my mutant once-slackware-but-now-fubar installs is no easy task..

    Anyways, to say the documentation on such things is sparse would be an understatement. What's to be found is completely obtuse and hard to follow.

    It would seem that this book would help. And if this were work-related I could get it and write off the expense. But this is just hobbyist messing-around stuff, and by this time next week I'll be messing with something different.

    I just dont have the funds to spend 200 bucks on literature for my time-wasting project du jour. Google's alright most of the time, but often I just see 9 billion users group postings of the same error I'm getting (with no replies containing solutions).

    --
    I don't need no instructions to know how to rock!!!!
  18. AMAZON.COM review copy? by hot_Karls_bad_cavern · · Score: 5, Informative

    "I just completed a three day training course based on this book. Every example just worked fine. The explanations are great but you do need the "Samba-3 Howto and Reference Guide" for detailed background information...."

    That's funny, i just completed a google search for your "comment" here and gues what i found?

    VERBATIM COPY

    Interesting.

  19. Re:samba rocks - until you hit oplocks! by FyRE666 · · Score: 4, Interesting

    Well, it does until you start using a lot of Excel spreadsheets which link to other spreadsheets on a Samba share at least. Then you start to see serious locking problems.

    Believe me, I've been banging my head against this for a couple of weeks now (I can't reproduce the problem, but other people on the network can and do, daily). Everyone seems to have their own idea about the correct combination of oplocks, level 2 oplocks, veto oplocks, deadtime etc to use; but nothing seems 100% foolproof. This is the reason we're probably going to be switching away from Samba to Win2k3. I don't want this, but as the only Linux guy, it's hard to fight the tide when you're having to clear down the locks and force people to close and re-open files almost daily as they're lock out of their own files... ;-(

  20. Re:Where to find a copy of TOSHARG? by proub · · Score: 3, Informative

    As linked in the article header, for one (not repeating in hopes people might seek out different mirrors). In general, head to http://samba.org/, find the mirror nearest you, and choose "PDF" or "HTML" from the "documentation" section's opening paragraphs.

    --
    "Irony is so September 10th"
    Matt Miller, alt.fan.spinnwebe
  21. Re:samba rocks - until you hit oplocks! by Cheeze · · Score: 3, Interesting

    i'm not sure of your exact problems, but the same thing happens in the win2k environment. sometimes, the application will give the error that the file is open already, buy the user that is trying to open it. The application does not even try to open it read-only. I've had to log into the file server and boot the open file. In that case, the program was MS Excel from office 2k. At least with a linux file server, you should be able to open the file read only. Most of the time, the application can just open it with no locking.

    --
    Why read the article when I can just make up a snap judgement?
  22. Re:samba rocks - until you hit oplocks! by Mish · · Score: 4, Informative
    The following settings resolved that issue for me:
    oplocks = no
    level 2 oplocks = true
    fake oplocks = yes
    Of course you'll want to RTFM on those commands first so you know what you're letting yourself in for. :)
  23. Re:samba rocks - until you hit oplocks! by FyRE666 · · Score: 3, Informative

    fake oplocks = yes

    Erm, isn't that a completely insane thing to do (unless you're sharing a CD over Samba)?!!! The Windows clients will assume they have a lock on a file, and blindly write to it, even though other clients will assume the same! If you really are using this on a writable share and haven't clobbered a whole load of files, then you've been damned lucky!

  24. Re:samba rocks - until you hit oplocks! by Mish · · Score: 4, Interesting
    Erm, isn't that a completely insane thing to do
    Yes and no.

    I don't know the specifics of your situation, so this very well may be an extremely bad idea for you, hence the "RTFM" comment. :)

    The system these configuration entries came from is a server that hosts numerous files which many people read, but only one or two people need to write to (and only one of those on a regular basis).

    The problem being that the annoying win32 program being used refuses to function unless it believes it has exclusive read and write access to the files, even though it never actually writes to the files (in most cases).

    It¦s not an elegant solution, but it solved the problem here with no ill effects since it was installed over a year ago, but yes, it has huge potential to cause file corruption on a system where the same files are concurrently modified by multiple users.
  25. Re:samba rocks - until you hit oplocks! by ArtisteTerroriste · · Score: 2, Interesting

    Show this to your Win friends. Win2K3 is a mess. Since our NT PDC & Members our transfer rates have dropped, all sorts of bad lock situations with single file Excel docs (Office 97). - this comming from an NT guy.

  26. Re:samba rocks - until you hit oplocks! by wackysootroom · · Score: 4, Informative

    A better way to do it would be to only veto oplocks on certain types of files with the veto oplock files option.

    We had problems with dbase file locking until we vetoed oplocks on those files.

    To do it, it looks like this:
    veto oplock files = /*.DBF/*.dbf/*.CDX/*.cdx/*.IDX/*.idx/*.fxp/*.FXP/* .prg/*.PRG/*.mmo/*.MMO/

    This way, you're not using oplocks on only the types of files that are giving you hell, while getting the best performance possible from all other file types.

  27. Agree with reviewer by Etyenne · · Score: 2, Informative

    My boss brought back a copy of S3bE from Real World Linux Expo in Toronto (with a dedicace to my name ... w00t!), and I must say I agree with reviewer. So far, I have only read chapters 10 and 11 (but thumbed through the rest), and they alone are worth the price of the book.

    --
    :wq
  28. Re:So, Where is Samba-3 By Example? by janhct · · Score: 4, Informative

    Guys,

    I committed the entire text of the book to the public samba-docs code tree on April 5th. We are having some difficulty in building the PDF file on the Samba build system. This will be resolved as soon as possible.

    We are committed to open information about open source software. Please be a little patient with us, you will get your candy soon.

    Cheers,
    John T.