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| author | John Terpstra <jht@samba.org> | 2003-06-14 22:25:31 +0000 |
|---|---|---|
| committer | John Terpstra <jht@samba.org> | 2003-06-14 22:25:31 +0000 |
| commit | 603a3b924236bf52911a3291cfe12a107eb38fda (patch) | |
| tree | 08931e37bc8ac6a3934665ee3b12506b93e2c570 /docs/htmldocs/Portability.html | |
| parent | 88c664030a507985f0e9bbcc612e802c4e5992c2 (diff) | |
| download | samba-603a3b924236bf52911a3291cfe12a107eb38fda.tar.gz samba-603a3b924236bf52911a3291cfe12a107eb38fda.tar.bz2 samba-603a3b924236bf52911a3291cfe12a107eb38fda.zip | |
Adding missing docs to tree.
These docs are needed for SWAT Support. Also, not everyone can build the docs
so we do need to include them.
(This used to be commit a1b6e7007b6257bc001e661c20fd20d4643b1eca)
Diffstat (limited to 'docs/htmldocs/Portability.html')
| -rw-r--r-- | docs/htmldocs/Portability.html | 129 |
1 files changed, 129 insertions, 0 deletions
diff --git a/docs/htmldocs/Portability.html b/docs/htmldocs/Portability.html new file mode 100644 index 0000000000..0a9de2b4d1 --- /dev/null +++ b/docs/htmldocs/Portability.html @@ -0,0 +1,129 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> +<html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>Chapter 37. Portability</title><link rel="stylesheet" href="samba.css" type="text/css"><meta name="generator" content="DocBook XSL Stylesheets V1.60.1"><link rel="home" href="index.html" title="SAMBA Project Documentation"><link rel="up" href="Appendixes.html" title="Part VI. Appendixes"><link rel="previous" href="compiling.html" title="Chapter 36. How to compile SAMBA"><link rel="next" href="Other-Clients.html" title="Chapter 38. Samba and other CIFS clients"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Chapter 37. Portability</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="compiling.html">Prev</a> </td><th width="60%" align="center">Part VI. Appendixes</th><td width="20%" align="right"> <a accesskey="n" href="Other-Clients.html">Next</a></td></tr></table><hr></div><div class="chapter" lang="en"><div class="titlepage"><div><div><h2 class="title"><a name="Portability"></a>Chapter 37. Portability</h2></div><div><div class="author"><h3 class="author"><span class="firstname">Jelmer</span> <span class="othername">R.</span> <span class="surname">Vernooij</span></h3><div class="affiliation"><span class="orgname">The Samba Team<br></span><div class="address"><p><tt class="email"><<a href="mailto:jelmer@samba.org">jelmer@samba.org</a>></tt></p></div></div></div></div></div><div></div></div><div class="toc"><p><b>Table of Contents</b></p><dl><dt><a href="Portability.html#id3012180">HPUX</a></dt><dt><a href="Portability.html#id3012265">SCO Unix</a></dt><dt><a href="Portability.html#id3012293">DNIX</a></dt><dt><a href="Portability.html#id3012463">RedHat Linux Rembrandt-II</a></dt><dt><a href="Portability.html#id3012506">AIX</a></dt><dd><dl><dt><a href="Portability.html#id3012513">Sequential Read Ahead</a></dt></dl></dd><dt><a href="Portability.html#id3012539">Solaris</a></dt><dd><dl><dt><a href="Portability.html#id3012546">Locking improvements</a></dt><dt><a href="Portability.html#winbind-solaris9">Winbind on Solaris 9</a></dt></dl></dd></dl></div><p>Samba works on a wide range of platforms but the interface all the +platforms provide is not always compatible. This chapter contains +platform-specific information about compiling and using samba.</p><div class="sect1" lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id3012180"></a>HPUX</h2></div></div><div></div></div><p> +HP's implementation of supplementary groups is, er, non-standard (for +hysterical reasons). There are two group files, <tt class="filename">/etc/group</tt> and +<tt class="filename">/etc/logingroup</tt>; the system maps UIDs to numbers using the former, but +initgroups() reads the latter. Most system admins who know the ropes +symlink <tt class="filename">/etc/group</tt> to <tt class="filename">/etc/logingroup</tt> +(hard link doesn't work for reasons too stupid to go into here). initgroups() will complain if one of the +groups you're in in <tt class="filename">/etc/logingroup</tt> has what it considers to be an invalid +ID, which means outside the range <tt class="constant">[0..UID_MAX]</tt>, where <tt class="constant">UID_MAX</tt> is (I think) +60000 currently on HP-UX. This precludes -2 and 65534, the usual <tt class="constant">nobody</tt> +GIDs. +</p><p> +If you encounter this problem, make sure that the programs that are failing +to initgroups() be run as users not in any groups with GIDs outside the +allowed range. +</p><p>This is documented in the HP manual pages under setgroups(2) and passwd(4). +</p><p> +On HPUX you must use gcc or the HP Ansi compiler. The free compiler +that comes with HP-UX is not Ansi compliant and cannot compile +Samba. +</p></div><div class="sect1" lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id3012265"></a>SCO Unix</h2></div></div><div></div></div><p> +If you run an old version of SCO Unix then you may need to get important +TCP/IP patches for Samba to work correctly. Without the patch, you may +encounter corrupt data transfers using samba. +</p><p> +The patch you need is UOD385 Connection Drivers SLS. It is available from +SCO (<a href="ftp://ftp.sco.com/" target="_top">ftp.sco.com</a>, directory SLS, +files uod385a.Z and uod385a.ltr.Z). +</p></div><div class="sect1" lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id3012293"></a>DNIX</h2></div></div><div></div></div><p> +DNIX has a problem with seteuid() and setegid(). These routines are +needed for Samba to work correctly, but they were left out of the DNIX +C library for some reason. +</p><p> +For this reason Samba by default defines the macro NO_EID in the DNIX +section of includes.h. This works around the problem in a limited way, +but it is far from ideal, some things still won't work right. +</p><p> +To fix the problem properly you need to assemble the following two +functions and then either add them to your C library or link them into +Samba. +</p><p> +put this in the file <tt class="filename">setegid.s</tt>: +</p><pre class="programlisting"> + .globl _setegid +_setegid: + moveq #47,d0 + movl #100,a0 + moveq #1,d1 + movl 4(sp),a1 + trap #9 + bccs 1$ + jmp cerror +1$: + clrl d0 + rts +</pre><p> +put this in the file <tt class="filename">seteuid.s</tt>: +</p><pre class="programlisting"> + .globl _seteuid +_seteuid: + moveq #47,d0 + movl #100,a0 + moveq #0,d1 + movl 4(sp),a1 + trap #9 + bccs 1$ + jmp cerror +1$: + clrl d0 + rts +</pre><p> +after creating the above files you then assemble them using +</p><pre class="screen"> + <tt class="prompt">$ </tt><b class="userinput"><tt>as seteuid.s</tt></b> + <tt class="prompt">$ </tt><b class="userinput"><tt>as setegid.s</tt></b> +</pre><p> +that should produce the files <tt class="filename">seteuid.o</tt> and +<tt class="filename">setegid.o</tt> +</p><p> +then you need to add these to the LIBSM line in the DNIX section of +the Samba Makefile. Your LIBSM line will then look something like this: +</p><pre class="programlisting"> +LIBSM = setegid.o seteuid.o -ln +</pre><p> +You should then remove the line: +</p><pre class="programlisting"> +#define NO_EID +</pre><p>from the DNIX section of <tt class="filename">includes.h</tt></p></div><div xmlns:ns101="" class="sect1" lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id3012463"></a>RedHat Linux Rembrandt-II</h2></div></div><div></div></div><ns101:p> +By default RedHat Rembrandt-II during installation adds an +entry to <tt class="filename">/etc/hosts</tt> as follows: +</ns101:p><pre class="programlisting"> + 127.0.0.1 loopback "hostname"."domainname" +</pre><ns101:p> +</ns101:p><p> +This causes Samba to loop back onto the loopback interface. +The result is that Samba fails to communicate correctly with +the world and therefor may fail to correctly negotiate who +is the master browse list holder and who is the master browser. +</p><p> +Corrective Action: Delete the entry after the word loopback + in the line starting 127.0.0.1 +</p></div><div class="sect1" lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id3012506"></a>AIX</h2></div></div><div></div></div><div class="sect2" lang="en"><div class="titlepage"><div><div><h3 class="title"><a name="id3012513"></a>Sequential Read Ahead</h3></div></div><div></div></div><p> +Disabling Sequential Read Ahead using <b class="userinput"><tt>vmtune -r 0</tt></b> improves +samba performance significally. +</p></div></div><div class="sect1" lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id3012539"></a>Solaris</h2></div></div><div></div></div><div class="sect2" lang="en"><div class="titlepage"><div><div><h3 class="title"><a name="id3012546"></a>Locking improvements</h3></div></div><div></div></div><p>Some people have been experiencing problems with F_SETLKW64/fcntl +when running samba on solaris. The built in file locking mechanism was +not scalable. Performance would degrade to the point where processes would +get into loops of trying to lock a file. It woul try a lock, then fail, +then try again. The lock attempt was failing before the grant was +occurring. So the visible manifestation of this would be a handful of +processes stealing all of the CPU, and when they were trussed they would +be stuck if F_SETLKW64 loops. +</p><p> +Sun released patches for Solaris 2.6, 8, and 9. The patch for Solaris 7 +has not been released yet. +</p><p> +The patch revision for 2.6 is 105181-34 +for 8 is 108528-19 and for 9 is 112233-04 +</p><p> +After the install of these patches it is recommended to reconfigure +and rebuild samba. +</p><p>Thanks to Joe Meslovich for reporting</p></div><div class="sect2" lang="en"><div class="titlepage"><div><div><h3 class="title"><a name="winbind-solaris9"></a>Winbind on Solaris 9</h3></div></div><div></div></div><p> +Nsswitch on Solaris 9 refuses to use the winbind nss module. This behavior +is fixed by Sun in patch 113476-05 which as of March 2003 is not in any +roll-up packages. +</p></div></div></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="compiling.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="Appendixes.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="Other-Clients.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">Chapter 36. How to compile SAMBA </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> Chapter 38. Samba and other CIFS clients</td></tr></table></div></body></html> |