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25 Commits

Author SHA1 Message Date
Lennart Poettering
75555c2824 man: sync up the suggested nsswitch.conf configuration for our four NSS modules
This unifies the suggested nsswitch.conf configuration for our four NSS modules to this:

    hosts: files mymachines resolve [!UNAVAIL=return] dns myhostname

Note that this restores "myhostname" to the suggested configuration of
nss-resolve for the time being, undoing 4484e1792b.

"myhostname" should probably be dropped eventually, but when we do this we
should do it in full, and not only drop it from the suggested nsswitch.conf
for one of the modules, but also drop it in source and stop referring to it
altogether.

Note that nss-resolve doesn't replace nss-myhostname in full: the former only
works if D-Bus/resolved is available for resolving the local hostname, the
latter works in all cases even if D-Bus or resolved are not in operation, hence
there's some value in keeping the line as it is right now. Note that neither
dns nor myhostname are considered at all with the above configuration unless
the resolve module actually returns UNAVAIL. Thus, even though handling of
local hostname resolving is implemented twice this way it is only executed once
for each lookup.
2016-10-24 19:04:43 +02:00
Lennart Poettering
409093fe10 nss: add new "nss-systemd" NSS module for mapping dynamic users
With this NSS module all dynamic service users will be resolvable via NSS like
any real user.
2016-07-22 15:53:45 +02:00
Zbigniew Jędrzejewski-Szmek
77384fb0ed Merge pull request #2959 from keszybz/stop-resolving-localdomain
*.localdomain != localhost
2016-04-04 22:06:37 -04:00
David R. Hedges
63003524cb *.localdomain != localhost
".localdomain" is not a reserved suffix (or prefix). I'm not aware of any
product expecting *.localdomain to resolve to localhost, however I am aware of
at least one product that defaults to ".localdomain" as its DNS suffix provided
via DHCP (pfSense). This leads to unexpected results when attempting to access
a host that's offline (or a host that's online, when nsswitch.conf is
[mis-]configured to have myhostname ahead of DNS).

Operate on:
localhost (and localhost.)
*.localhost (and *.localhost.)
localhost.localdomain (and localhost.localdomain.)
*.localhost.localdomain (and *.localhost.localdomain.)

We should not cover:
*.localdomain (nor *.localdomain.)
localdomain (nor localdomain.)
2016-04-04 13:28:57 -04:00
Lennart Poettering
9053aaad42 man: change recommended order of NSS modules in /etc/nsswitch.conf
So far we recommended placing "nss-mymachines" after "nss-resolve" in the order
of preference in /etc/nsswitch.conf. This change reverse this order.

Rationale: single-label names are resolved via LLMNR by resolved, which has to
time out if no peer by that name exists. By placing "nss-mymachines" first
(which always responds immediately) we avoid running into this timeout for most
containers. Both modules should return the same data if LLMNR is used by the
container anyway.

While we are at it, improve the man pages of the three NSS modules in other
ways a bit.
2016-02-23 18:26:35 +01:00
Lennart Poettering
358a9d5114 man: document that nss-myhostname handles *.localhost and *.localdomain too
(And similar for resolved)

Fixes: #1630
2016-02-10 23:48:50 +01:00
Jan Engelhardt
7ca4155737 doc: use expanded forms for written style 2015-11-06 13:46:26 +01:00
Jan Engelhardt
a8eaaee72a doc: correct orthography, word forms and missing/extraneous words 2015-11-06 13:45:21 +01:00
Jan Engelhardt
b938cb902c doc: correct punctuation and improve typography in documentation 2015-11-06 13:00:02 +01:00
Lennart Poettering
a8ba86ce6a man: always use the same example in nss module documentation
Show the same recommended example file in all three man pages, just
highlight the different, relevant parts.

This should be less confusing for users, and clarify what we actually
recommend how /etc/nsswitch.conf is set up.
2015-09-04 09:07:30 +02:00
Lennart Poettering
0d6868f9ae man: document nss-resolve 2015-08-26 11:00:09 +02:00
Tom Gundersen
12b42c7667 man: revert dynamic paths for split-usr setups
This did not really work out as we had hoped. Trying to do this upstream
introduced several problems that probably makes it better suited as a
downstream patch after all. At any rate, it is not releaseable in the
current state, so we at least need to revert this before the release.

 * by adjusting the path to binaries, but not do the same thing to the
   search path we end up with inconsistent man-pages. Adjusting the search
   path too would be quite messy, and it is not at all obvious that this is
   worth the effort, but at any rate it would have to be done before we
   could ship this.

 * this means that distributed man-pages does not make sense as they depend
   on config options, and for better or worse we are still distributing
   man pages, so that is something that definitely needs sorting out before
   we could ship with this patch.

 * we have long held that split-usr is only minimally supported in order
   to boot, and something we hope will eventually go away. So before we start
   adding even more magic/effort in order to make this work nicely, we should
   probably question if it makes sense at all.
2015-06-18 19:47:44 +02:00
Filipe Brandenburger
681eb9cf2b man: generate configured paths in manpages
In particular, use /lib/systemd instead of /usr/lib/systemd in distributions
like Debian which still have not adopted a /usr merge setup.

Use XML entities from man/custom-entities.ent to replace configured paths while
doing XSLT processing of the original XML files. There was precedent of some
files (such as systemd.generator.xml) which were already using this approach.

This addresses most of the (manual) fixes from this patch:
http://anonscm.debian.org/cgit/pkg-systemd/systemd.git/tree/debian/patches/Fix-paths-in-man-pages.patch?h=experimental-220

The idea of using generic XML entities was presented here:
http://lists.freedesktop.org/archives/systemd-devel/2015-May/032240.html

This patch solves almost all the issues, with the exception of:
- Path to /bin/mount and /bin/umount.
- Generic statements about preference of /lib over /etc.

These will be handled separately by follow up patches.

Tested:
- With default configure settings, ran "make install" to two separate
  directories and compared the output to confirm they matched exactly.
- Used a set of configure flags including $CONFFLAGS from Debian:
  http://anonscm.debian.org/cgit/pkg-systemd/systemd.git/tree/debian/rules
  Installed the tree and confirmed the paths use /lib/systemd instead of
  /usr/lib/systemd and that no other unexpected differences exist.
- Confirmed that `make distcheck` still passes.
2015-05-28 19:28:19 +02:00
Torstein Husebø
ff9b60f38b treewide: Correct typos and spell plural of bus consistent 2015-05-11 15:51:30 +02:00
Zbigniew Jędrzejewski-Szmek
798d3a524e Reindent man pages to 2ch 2015-02-03 23:11:35 -05:00
Lennart Poettering
dbda6dce3d man: document nss-mymachines 2015-01-07 17:40:10 +01:00
Lennart Poettering
49aa61a550 man: add an alias to libnss_myhostname.so2 for nss-myhostname
The module appears under the name "libnss_myhostname.so.2" in the file
system, hence let's link it up under that name.
2015-01-07 17:19:46 +01:00
Lennart Poettering
b311d32ff4 man: rework nss-myhostname man page
Remove a number of incorrect links, and explain that "localhost" and
"gateway" are now resolved by it, too.
2015-01-07 17:14:04 +01:00
Zbigniew Jędrzejewski-Szmek
5aded36978 man: add a mapping for external manpages
It is annoying when we have dead links on fd.o.

Add project='man-pages|die-net|archlinux' to <citerefentry>-ies.

In generated html, add external links to
http://man7.org/linux/man-pages/man, http://linux.die.net/man/,
https://www.archlinux.org/.

By default, pages in sections 2 and 4 go to man7, since Michael
Kerrisk is the autorative source on kernel related stuff.

The rest of links goes to linux.die.net, because they have the
manpages.

Except for the pacman stuff, since it seems to be only available from
archlinux.org.

Poor gummiboot gets no link, because gummitboot(8) ain't to be found
on the net. According to common wisdom, that would mean that it does
not exist. But I have seen Kay using it, so I know it does, and
deserves to be found. Can somebody be nice and put it up somewhere?
2014-07-07 18:36:55 -04:00
Lennart Poettering
9fccdb0f64 man: always place <programlisting> and </programlisting> in a line with actual sources, so that we don't get spurious newlines in the man page output 2014-02-14 15:56:19 +01:00
Jason St. John
e9dd9f9547 man: improve grammar and word formatting in numerous man pages
Use proper grammar, word usage, adjective hyphenation, commas,
capitalization, spelling, etc.

To improve readability, some run-on sentences or sentence fragments were
revised.

[zj: remove the space from 'file name', 'host name', and 'time zone'.]
2013-07-02 23:06:22 -04:00
Thomas Hindoe Paaboel Andersen
7d7681f70b man: fix some typos 2013-03-13 23:09:49 +01:00
Zbigniew Jędrzejewski-Szmek
e670b166a0 man: use <replaceable> in various places 2013-02-13 23:09:00 -05:00
Zbigniew Jędrzejewski-Szmek
56ba3c78ae build-sys: create Makefile-man.am automatically
man rules were repeating the same information in too many places,
which was error prone. Those rules can be easily generated from .xml
files. For efficiency and because python is not a required dependency,
Makefile-man.am is only regenerated when requested with

  make update-man-list

If no metadata in man/*.xml changed, this file should not change. So
only when a new man page or a new alias is added, this file should
show up in 'git diff'. The change should then be committed.

If the support for building from git without python was dropped, we
could drop Makefile-man.am from version control. This would also
increase the partial build time (since more stuff would be rebuild
whenever sources in man/*.xml would be modified), so it would probably
wouldn't be worth it.
2013-02-06 23:16:16 -05:00
Tom Gundersen
16eb4da97e nss-myhostname: integrate documentation
Converted from html to xml and changed the style to fit into the other
manpages.
2013-01-07 15:15:57 +01:00