Commit Graph

32 Commits

Author SHA1 Message Date
Alejandro Colomar
0c4fa6ee0a libmisc, man: Drop old check and advice for complex character sets in passwords
Add the relevant XKCD to the passwd(1) manual page.  It already explains
most of the rationale behind this patch.

Add also reference to makepasswd(1), which is a good way to generate
strong passwords.  Personally, I commonly run `makepasswd --chars 64` to
create my passwords, or 32 for passwords I need to type interactively
often.

The strength of a password is an exponential formula, where the base is
the size of the character set, and the exponent is the length of the
password.  That already shows why long passwords of just lowercase
letters are better than short Pa$sw0rdZ3.  But an even more important
point is that humans, when forced to use symbols in a password, are more
likely to do trivial substitutions on simple passwords, which doesn't
increase strength, and can instead give a false sense of strength, which
is dangerous.

Closes: <https://github.com/shadow-maint/shadow/issues/688>
Link: <https://xkcd.com/936/>
Cc: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
2023-04-27 09:16:08 +02:00
Celeste Liu
6448da507e libmisc/root_flag: add tips for --root flag only support abspath
- Add tips in error message.
- Add tips in man.
- Add zh_CN and zh_TW for tips.

Signed-off-by: Celeste Liu <coelacanthus@outlook.com>
2022-08-06 15:04:06 -05:00
Serge Hallyn
f93cf255d4 Update licensing info
Closes #238

Update all files to list SPDX license shortname.  Most files are
BSD 3 clause license.

The exceptions are:

serge@sl ~/src/shadow$ git grep SPDX-License | grep -v BSD-3-Clause
contrib/atudel:# SPDX-License-Identifier: BSD-4-Clause
lib/tcbfuncs.c: * SPDX-License-Identifier: 0BSD
libmisc/salt.c: * SPDX-License-Identifier: Unlicense
src/login_nopam.c: * SPDX-License-Identifier: Unlicense
src/nologin.c: * SPDX-License-Identifier: BSD-2-Clause
src/vipw.c: * SPDX-License-Identifier: GPL-2.0-or-later

Signed-off-by: Serge Hallyn <serge@hallyn.com>
2021-12-23 19:36:50 -06:00
Bryan Østergaard
a54907dce3 Add note to passwd(1) that --maxdays -1 disables the setting.
This note already exists in chage(1).
2018-01-03 18:36:40 +01:00
WheresAlice
1e98b3b559 Make language less binary 2017-09-20 17:00:29 +01:00
Sebastian Rasmussen
aa38e0da9a man: Fix a number of typos for various commands. 2016-04-28 15:56:28 +02:00
Nicolas François
138682fd30 Avoid spaces between <option> and <replaceable>
* man/chage.1.xml: Add a non breaking space between options and
	their parameter because xml2po removes those spaces. Alioth#314401
	* man/chfn.1.xml: Likewise.
	* man/chgpasswd.8.xml: Likewise.
	* man/chpasswd.8.xml: Likewise.
	* man/chsh.1.xml: Likewise.
	* man/faillog.8.xml: Likewise.
	* man/gpasswd.1.xml: Likewise.
	* man/groupadd.8.xml: Likewise.
	* man/groupdel.8.xml: Likewise.
	* man/groupmems.8.xml: Likewise.
	* man/groupmod.8.xml: Likewise.
	* man/grpck.8.xml: Likewise.
	* man/lastlog.8.xml: Likewise.
	* man/newusers.8.xml: Likewise.
	* man/passwd.1.xml: Likewise.
	* man/pwck.8.xml: Likewise.
	* man/pwconv.8.xml: Likewise.
	* man/su.1.xml: Likewise.
	* man/useradd.8.xml: Likewise.
	* man/userdel.8.xml: Likewise.
	* man/usermod.8.xml: Likewise.
	* man/vipw.8.xml: Likewise.
2013-08-23 20:29:40 +02:00
nekral-guest
042d6c48b3 * man/*.xml: Add author based on copyright statement.
* man/<ll>/*.[1358], man/<ll>/man[1358]/*.[1358],
	man/<ll>/Makefile.am: Sort manpages per section as the generated
	manpages.
2012-05-25 11:45:21 +00:00
nekral-guest
ec2b9f59f7 * NEWS, src/passwd.c, man/passwd.1.xml: Add --root option.
passwd's usage split in smaller messages.
	* src/passwd.c: Call sanitize_env() before setting the locales.
2011-11-06 18:38:16 +00:00
nekral-guest
3bdad35e9f * man/*.xml, man/config.xml.in: Add source and version
information. This reduce the amount of warnings during the
	manpages generation.
2011-07-08 19:49:09 +00:00
nekral-guest
504a89d25b * man/passwd.1.xml: Added reference to chpasswd(8). 2011-06-25 09:03:05 +00:00
nekral-guest
35c0b2cb47 * man/passwd.1.xml: The short option for --mindays is -n, not -m. 2009-06-05 21:14:12 +00:00
nekral-guest
a1352582df * man/passwd.1.xml: Avoid a spurious comma. 2009-05-25 19:29:19 +00:00
nekral-guest
91d5c24f58 * NEWS: Prepare the next release.
* po/shadow.pot, man/po/shadow-man-pages.pot: Regenerated.
	* po/*.po, man/po/*.po: Updated PO files.
	* man/passwd.1.xml: passwd -u does not reset the expiry field.
2009-05-22 13:50:45 +00:00
nekral-guest
4654150518 * man/passwd.1.xml: Differentiate the files used for PAM and
non-PAM versions.
2009-05-09 13:15:03 +00:00
nekral-guest
76b51939aa * man/groupmod.8.xml, man/usermod.8.xml, man/groupadd.8.xml,
man/useradd.8.xml: Added note to warn about insecurity in using
	--password.
	* man/groupmod.8.xml: Removed not regarding default if --password
	is not used. This was a cut&paste from groupadd.8.xml.
	* man/passwd.1.xml: Split some paragraphs.
	* man/passwd.1.xml: Recommend other encryption methods than DES.
2009-04-27 20:29:43 +00:00
nekral-guest
bc0f4fa509 * man/passwd.1.xml: Document that passwd uses PAM to authenticate
and change passwords on PAM-enabled builds.
2009-04-11 23:32:00 +00:00
nekral-guest
4b2f537795 * man/*.xml, man/login.defs.d/*.xml: Added copyright and licence
header.
2008-10-11 11:44:43 +00:00
nekral-guest
c71e7861ed * man/passwd.1.xml: passwd cannot change the full name of the
user, the user's login shell; but it can change the account or
	password validity period. Thanks to Reuben Thomas.
2008-09-20 10:53:00 +00:00
nekral-guest
1355d5d3eb * NEWS, src/passwd.c: For compatibility with other passwd version,
the --lock an --unlock options do not lock or unlock the user
	account anymore.  They only lock or unlock the user's password.
	* man/passwd.1.xml: Document above change. Document how an account
	can be locked and what a password lock means.
2008-08-22 02:16:21 +00:00
nekral-guest
ec9e63b7de Remove the advices for the choice of a good password (they are debatable). Point to http://en.wikipedia.org/wiki/Password_strength instead. 2008-05-21 18:25:48 +00:00
nekral-guest
8c4d98edc1 * man/login.defs.d/CONSOLE_GROUPS.xml,
man/login.defs.d/CONSOLE.xml, man/login.defs.d/DEFAULT_HOME.xml,
  man/login.defs.d/ENV_HZ.xml, man/login.defs.d/ENVIRON_FILE.xml,
  man/login.defs.d/ENV_PATH.xml, man/login.defs.d/ENV_SUPATH.xml,
  man/login.defs.d/ENV_TZ.xml, man/login.defs.d/ERASECHAR.xml,
  man/login.defs.d/FAIL_DELAY.xml,
  man/login.defs.d/FAILLOG_ENAB.xml,
  man/login.defs.d/FAKE_SHELL.xml, man/login.defs.d/FTMP_FILE.xml,
  man/login.defs.d/HUSHLOGIN_FILE.xml,
  man/login.defs.d/ISSUE_FILE.xml, man/login.defs.d/KILLCHAR.xml,
  man/login.defs.d/LASTLOG_ENAB.xml, man/login.defs.d/LOGIN_RETRIES.xml,
  man/login.defs.d/LOGIN_TIMEOUT.xml, man/login.defs.d/LOG_OK_LOGINS.xml,
  man/login.defs.d/LOG_UNKFAIL_ENAB.xml,
  man/login.defs.d/MAIL_CHECK_ENAB.xml, man/login.defs.d/MOTD_FILE.xml,
  man/login.defs.d/NOLOGINS_FILE.xml,
  man/login.defs.d/OBSCURE_CHECKS_ENAB.xml,
  man/login.defs.d/PASS_ALWAYS_WARN.xml,
  man/login.defs.d/PASS_CHANGE_TRIES.xml,
  man/login.defs.d/PASS_MAX_LEN.xml,
  man/login.defs.d/PORTTIME_CHECKS_ENAB.xml,
  man/login.defs.d/QUOTAS_ENAB.xml, man/login.defs.d/SULOG_FILE.xml,
  man/login.defs.d/SU_NAME.xml, man/login.defs.d/SU_WHEEL_ONLY.xml,
  man/login.defs.d/SYSLOG_SG_ENAB.xml,
  man/login.defs.d/SYSLOG_SU_ENAB.xml,
  man/login.defs.d/TTYGROUP.xml, man/login.defs.d/TTYTYPE_FILE.xml,
  man/login.defs.d/ULIMIT.xml, man/login.defs.d/USERGROUPS_ENAB.xml:
  New documentation of login.defs variables.
* man/login.defs.d/MAIL_DIR.xml: Updated. It now contains the
  MAIL_FILE documentation.
* man/login.defs.d/LOGIN_STRING.xml: Updated. Mentions %s.
* man/pwconv.8.xml, man/groupmems.8.xml, man/groupdel.8.xml,
  man/useradd.8.xml, man/pwck.8.xml, man/groupadd.8.xml,
  man/sulogin.8.xml, man/newgrp.1.xml, man/usermod.8.xml,
  man/su.1.xml, man/vipw.8.xml, man/passwd.1.xml,
  man/groupmod.8.xml, man/login.1.xml, man/userdel.8.xml,
  man/grpck.8.xml: Added CONFIGURATION section.
* man/generate_mans.mak: The generations of manpages depends on
  the variables from the Makefiles. Add the dependency on Makefile.
* man/login.defs.5.xml: New login.defs variable documented.
* man/Makefile.am: Added XML variable documentation to the
  distributed files.
2007-12-08 23:24:40 +00:00
nekral-guest
e47ee90033 -l/-u options: edit the shadow account expiry field *in addition* to
editing the password field.  Debian patch 494_passwd_lock.
2007-11-17 16:40:39 +00:00
nekral-guest
b2120265fd Added the subversion svn:keywords property (Id) for proper identification. 2007-11-10 23:46:11 +00:00
nekral-guest
79bf2081fe Commit the last version from the PLD CVS repository.
(last changelog entry: 2007-02-01)
This also adds the files which were present in the CVS repository, but not
present in the shadow archives.
2007-10-07 14:36:51 +00:00
nekral-guest
5e20c4359f [svn-upgrade] Integrating new upstream version, shadow (4.0.18) 2007-10-07 11:47:57 +00:00
nekral-guest
0fa9083026 [svn-upgrade] Integrating new upstream version, shadow (4.0.16) 2007-10-07 11:47:33 +00:00
nekral-guest
591830e43b [svn-upgrade] Integrating new upstream version, shadow (4.0.15) 2007-10-07 11:47:22 +00:00
nekral-guest
24178ad677 [svn-upgrade] Integrating new upstream version, shadow (4.0.14) 2007-10-07 11:47:11 +00:00
nekral-guest
8451bed8b0 [svn-upgrade] Integrating new upstream version, shadow (4.0.13) 2007-10-07 11:47:01 +00:00
nekral-guest
8c50e06102 [svn-upgrade] Integrating new upstream version, shadow (4.0.10) 2007-10-07 11:46:25 +00:00
nekral-guest
7c47e0fde3 [svn-upgrade] Integrating new upstream version, shadow (4.0.9) 2007-10-07 11:46:16 +00:00