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In 2013 the security chapter of the Handbook was updated in r42501 to suggest limiting access to the system accounting file [*1] by creating the initial file with a mode of 0600. This was in part based on a discussion in the forums [*2]. Unfortunately, this advice is overridden by the fact that a new file is created as part of periodic daily processing, and the file mode is set by the rc.d/accounting script. These changes update the accounting script to create the directory with mode 0750 if it doesn't already exist, and to create the daily file with mode 0640. This limits write access to root only, read access to root and members of wheel, and eliminates world access completely. For admins who want to prevent even members of wheel from accessing the files, the mode of the /var/account directory can be manually changed to 0700, because the script never creates or changes that directory if it already exists. The accounting_rotate_log() function now also handles the error cases of no existing log file to rotate, and attempting to rotate the file multiple times (.0 file already exists). Another small change here eliminates the complexity of the mktemp/chmod/mv sequence for creating a new acct file by using install(1) with the flags needed to directly create the file with the desired ownership and modes. That allows coalescing two separate if checkyesno accounting_enable blocks into one. These changes were inspired by my investigation of PR 202203. [1] https://www.freebsd.org/doc/handbook/security-accounting.html [2] http://forums.freebsd.org/showthread.php?t=41059 PR: 202203 Differential Revision: https://reviews.freebsd.org/D20876 |
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| bin | ||
| cddl | ||
| contrib | ||
| crypto | ||
| etc | ||
| gnu | ||
| include | ||
| kerberos5 | ||
| lib | ||
| libexec | ||
| release | ||
| rescue | ||
| sbin | ||
| secure | ||
| share | ||
| stand | ||
| sys | ||
| targets | ||
| tests | ||
| tools | ||
| usr.bin | ||
| usr.sbin | ||
| .arcconfig | ||
| .arclint | ||
| .cirrus.yml | ||
| .clang-format | ||
| .gitattributes | ||
| .gitignore | ||
| COPYRIGHT | ||
| LOCKS | ||
| MAINTAINERS | ||
| Makefile | ||
| Makefile.inc1 | ||
| Makefile.libcompat | ||
| Makefile.sys.inc | ||
| ObsoleteFiles.inc | ||
| README | ||
| README.md | ||
| UPDATING | ||
FreeBSD Source:
This is the top level of the FreeBSD source directory. This file
was last revised on:
FreeBSD
FreeBSD is an operating system used to power modern servers, desktops, and embedded platforms. A large community has continually developed it for more than thirty years. Its advanced networking, security, and storage features have made FreeBSD the platform of choice for many of the busiest web sites and most pervasive embedded networking and storage devices.
For copyright information, please see the file COPYRIGHT in this directory. Additional copyright information also exists for some sources in this tree - please see the specific source directories for more information.
The Makefile in this directory supports a number of targets for building components (or all) of the FreeBSD source tree. See build(7), config(8), https://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/makeworld.html, and https://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig.html for more information, including setting make(1) variables.
Source Roadmap:
bin System/user commands.
cddl Various commands and libraries under the Common Development
and Distribution License.
contrib Packages contributed by 3rd parties.
crypto Cryptography stuff (see crypto/README).
etc Template files for /etc.
gnu Various commands and libraries under the GNU Public License.
Please see gnu/COPYING* for more information.
include System include files.
kerberos5 Kerberos5 (Heimdal) package.
lib System libraries.
libexec System daemons.
release Release building Makefile & associated tools.
rescue Build system for statically linked /rescue utilities.
sbin System commands.
secure Cryptographic libraries and commands.
share Shared resources.
stand Boot loader sources.
sys Kernel sources.
sys/<arch>/conf Kernel configuration files. GENERIC is the configuration
used in release builds. NOTES contains documentation of
all possible entries.
tests Regression tests which can be run by Kyua. See tests/README
for additional information.
tools Utilities for regression testing and miscellaneous tasks.
usr.bin User commands.
usr.sbin System administration commands.
For information on synchronizing your source tree with one or more of the FreeBSD Project's development branches, please see:
https://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/current-stable.html