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DOAS.CONF(5) File Formats Manual DOAS.CONF(5)

doas.conf
doas configuration file

/etc/doas.conf

The doas(1) utility executes commands as other users according to the rules in the doas.conf configuration file.
The rules have the following format:
permit|deny [
options
] identity [
as target
] [
cmd command [
args ...
]
]
Rules consist of the following parts:
 
 
|deny
The action to be taken if this rule matches.
 
 
options
Options are:
 
 
The user is not required to enter a password.
 
 
The user's environment is maintained. The default is to reset the environment, except for the variables DISPLAY, HOME, LOGNAME, MAIL, PATH, TERM, USER and USERNAME.
 
 
[
variable ...
] [
variable=value ...
] }
In addition to the variables mentioned above, keep the space-separated specified variables. Variables may also be removed with a leading ‘-’ or set using the latter syntax. If the first character of value is a ‘$’ then the value to be set is taken from the existing environment variable of the same name.
 
 
identity
The username to match. Groups may be specified by prepending a colon (‘:’). Numeric IDs are also accepted.
 
 
target
The target user the running user is allowed to run the command as. The default is all users.
 
 
command
The command the user is allowed or denied to run. The default is all commands. Be advised that it is best to specify absolute paths. If a relative path is specified, only a restricted PATH will be searched.
 
 
Arguments to command. The command arguments provided by the user need to match those specified. The keyword args alone means that command must be run without any arguments.
The last matching rule determines the action taken. If no rule matches, the action is denied.
Comments can be put anywhere in the file using a hash mark (‘#’), and extend to the end of the current line.
The following quoting rules apply:

The following example permits users in group wsrc to build ports; wheel to execute commands as any user while keeping the environment variables PS1 and SSH_AUTH_SOCK and unsetting ENV; permits tedu to run procmap as root without a password; and additionally permits root to run unrestricted commands as itself.
# Non-exhaustive list of variables needed to 
# build release(8) and ports(7) 
permit nopass setenv { \ 
        FTPMODE PKG_CACHE PKG_PATH SM_PATH SSH_AUTH_SOCK \ 
        DESTDIR DISTDIR FETCH_CMD FLAVOR GROUP MAKE MAKECONF \ 
        MULTI_PACKAGES NOMAN OKAY_FILES OWNER PKG_DBDIR \ 
        PKG_DESTDIR PKG_TMPDIR PORTSDIR RELEASEDIR SHARED_ONLY \ 
        SUBPACKAGE WRKOBJDIR SUDO_PORT_V1 } :wsrc 
permit setenv { -ENV PS1=$DOAS_PS1 SSH_AUTH_SOCK } :wheel 
permit nopass tedu as root cmd /usr/sbin/procmap 
permit nopass keepenv root as root

doas(1)

The doas.conf configuration file first appeared in OpenBSD 5.8.

Ted Unangst <tedu@openbsd.org>
June 27, 2016 OpenBSD-6.0