Package: base-files
Version: 3.1.2
Severity: minor

*** Please type your report below this line ***
Hi

The nsswitch.conf(5) manpage does not explain how to override some fields in
/etc/passwd, with the "compat" option. In fact I could not easily find any
reference to the "full +/- semantics" mentioned in the page.

The patch below may improve the situation. Please consider applying it,
or something like it.  I would be grateful if you could add a pointer
to the documentation for the full +/- semantics.

---------------------------------- snip ----------------------------------------
--- nsswitch.conf.5.orig        2005-10-14 17:44:48.097267000 +1000
+++ nsswitch.conf.5     2005-10-14 18:16:14.582098000 +1000
@@ -207,7 +207,25 @@
 (include the specified user from the NIS passwd map),
 -user or [EMAIL PROTECTED] (exclude the specified user),
 and + (include every user, except the excluded ones, from the NIS
-passwd map). Since most people only put a + at the end of
+passwd map).
+.LP
+The +/- syntax has a nice property: it is possible to selectively
+override certain fields in /etc/passwd, while taking the rest of the
+information from the NIS passwd map. For example you may have a user
+who should get a home directory local to the machine, rather than
+an NFS-automounted directory. In such a case you could put the line
+.sp
+.RS
+.nf
++fred:::::/local/fred:
+.fi
+.RE
+.PP
+in
+.B /etc/passwd, which will allow user 'fred' to login using their
+NIS password, but which will set their home directory to /local/fred.
+.LP
+Since most people only put a + at the end of
 .B /etc/passwd
 to include everything from NIS, the switch provides a faster
 alternative for this case (`passwd: files nis') which doesn't
@@ -217,13 +235,14 @@
 and
 .BR /etc/shadow .
 If this is not sufficient, the NSS `compat' service provides full
-+/- semantics. By default, the source is `nis', but this may be
++/- semantics (such as selective replacement of passwd entry elements).
+By default, the source is `nis', but this may be
 overriden by specifying `nisplus' as source for the pseudo-databases
 .BR passwd_compat,
 .B group_compat
 and
 .BR shadow_compat.
-This pseudo-databases are only available in GNU C Library.
+These pseudo-databases are only available in the GNU C Library.
 .SH FILES
 A service named SERVICE is implemented by a shared object library named
 .BI libnss_SERVICE.so. X

--------------------------------------------------------------------------------

-- System Information:
Debian Release: 3.1
Architecture: i386 (i686)
Kernel: Linux 2.6.8-2-686
Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968)

Versions of packages base-files depends on:
ii  base-passwd                   3.5.9      Debian base system master password
ii  gawk [awk]                    1:3.1.4-2  GNU awk, a pattern scanning and pr
ii  mawk [awk]                    1.3.3-11   a pattern scanning and text proces

-- no debconf information


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