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Zbigniew Jędrzejewski-Szmek 5248e7e1f1 resolved,nss-myhostname: use _gateway for the gateway
This changes the symbolic name for the default gateway from "gateway" to
"_gateway". A new configuration option -Dcompat-gateway-hostname=true|false
is added. If it is set, the old name is also supported, but the new name
is used as the canonical name in either case. This is intended as a temporary
measure to make the transition easier, and the option should be removed
after a few releases, at which point only the new name will be used.

The old "gateway" name mostly works OK, but hasn't gained widespread acceptance
because of the following (potential) conflicts:
- it is completely legal to have a host called "gateway"
- there is no guarantee that "gateway" will not be registered as a TLD, even
  though this currently seems unlikely. (Even then, there would be no
  conflict except for the case when the top-level domain itself was being resolved.
  The "gateway" or "_gateway" labels have only special meaning when the
  whole name consists of a single label, so resolution of any subdomain
  of the hypothetical gateway. TLD would still work OK. )
Moving to "_gateway" avoids those issues because underscores are not allowed
in host names (RFC 1123, §2.1) and avoids potential conflicts with local or
global names.

v2:
- simplify the logic to hardcode "_gateway" and allow
  -Dcompat-gateway-hostname=true as a temporary measure.
2017-07-31 14:41:56 -04:00
.github github: how to report bugs for older distribution versions (#6146) 2017-06-20 20:20:25 +02:00
.mkosi build-sys: drop automake support 2017-07-18 10:04:44 -04:00
catalog build-sys: drop gitignore patterns for in-tree builds 2017-07-18 10:05:06 -04:00
coccinelle tree-wide: drop NULL sentinel from strjoin 2016-10-23 11:43:27 -04:00
docs build-sys: drop gitignore patterns for in-tree builds 2017-07-18 10:05:06 -04:00
factory/etc factory: remove broken pam_limits 2014-07-30 15:21:54 +02:00
hwdb Merge pull request #6266 from keszybz/drop-autotools 2017-07-20 19:56:07 +02:00
man build-sys: drop gitignore patterns for in-tree builds 2017-07-18 10:05:06 -04:00
network build-sys: drop automake support 2017-07-18 10:04:44 -04:00
po build-sys: drop gitignore patterns for in-tree builds 2017-07-18 10:05:06 -04:00
rules build-sys: drop gitignore patterns for in-tree builds 2017-07-18 10:05:06 -04:00
shell-completion build-sys: drop gitignore patterns for in-tree builds 2017-07-18 10:05:06 -04:00
src resolved,nss-myhostname: use _gateway for the gateway 2017-07-31 14:41:56 -04:00
sysctl.d build-sys: drop gitignore patterns for in-tree builds 2017-07-18 10:05:06 -04:00
system-preset build-sys: drop automake support 2017-07-18 10:04:44 -04:00
sysusers.d build-sys: drop gitignore patterns for in-tree builds 2017-07-18 10:05:06 -04:00
test test: try to guess the build directory 2017-07-18 10:05:06 -04:00
tmpfiles.d build-sys: drop gitignore patterns for in-tree builds 2017-07-18 10:05:06 -04:00
tools python: remove star imports 2017-07-18 10:04:44 -04:00
units build-sys: drop gitignore patterns for in-tree builds 2017-07-18 10:05:06 -04:00
xorg login: support user-bus on dbus1 2015-08-31 18:12:37 +02:00
.dir-locals.el meson: also indent scripts with 8 spaces 2017-04-25 08:49:16 -04:00
.editorconfig editors: only extend line width to 119 for C and XML files 2016-02-10 12:29:32 +01:00
.gitattributes git: indicate that tabs are never OK in the systemd tree 2013-10-30 02:25:38 +01:00
.gitignore build-sys: drop gitignore patterns for in-tree builds 2017-07-18 10:05:06 -04:00
.mailmap mailmap: add entry 2017-07-18 10:04:44 -04:00
.travis.yml remove gudev and gtk-doc 2015-06-03 00:22:53 +02:00
.vimrc vimrc: fix indentation logic for our docbook xml files 2016-04-29 12:23:34 +02:00
.ycm_extra_conf.py ycm: update flag blacklist 2014-06-04 15:41:10 -04:00
CODING_STYLE tree-wide: set SA_RESTART for signal handlers we install 2016-12-01 12:41:17 +01:00
DISTRO_PORTING build-sys: drop automake support 2017-07-18 10:04:44 -04:00
ENVIRONMENT.md Rename $TEST_DIR to $SYSTEMD_TEST_DATA, document it 2017-02-16 21:36:31 +01:00
HACKING HACKING: update for meson 2017-07-18 10:05:06 -04:00
LICENSE.GPL2 relicense to LGPLv2.1 (with exceptions) 2012-04-12 00:24:39 +02:00
LICENSE.LGPL2.1 licence: remove references to old FSF address 2012-12-17 11:41:31 +01:00
Makefile build-sys: add basic support for ./configure && make && make install 2017-07-18 10:05:06 -04:00
NEWS NEWS: say that libidn2 is experimental (#6335) 2017-07-12 09:25:59 +02:00
README build-sys: drop automake support 2017-07-18 10:04:44 -04:00
README.md README: include small graphs of open issues and pull requests (#5576) 2017-03-13 08:10:04 +01:00
TODO update TODO 2017-07-10 18:25:58 +02:00
configure build-sys: add basic support for ./configure && make && make install 2017-07-18 10:05:06 -04:00
meson.build resolved,nss-myhostname: use _gateway for the gateway 2017-07-31 14:41:56 -04:00
meson_options.txt resolved,nss-myhostname: use _gateway for the gateway 2017-07-31 14:41:56 -04:00
mkosi.build mkosi: use '[' rather than 'test' everywhere 2017-07-20 14:37:05 +02:00
mkosi.default mkosi: create .mkosi directory 2016-10-06 11:53:58 -04:00

README.md

systemd - System and Service Manager

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Details

General information about systemd can be found in the systemd Wiki.

Information about build requirements are provided in the README file.

Consult our NEWS file for information about what's new in the most recent systemd versions.

Please see the HACKING file for information how to hack on systemd and test your modifications.

Please see our Contribution Guidelines for more information about filing GitHub Issues and posting GitHub Pull Requests.

When preparing patches for systemd, please follow our Coding Style Guidelines.

If you are looking for support, please contact our mailing list or join our IRC channel.