SUDOREPLAY(8) BSD System Manager's Manual SUDOREPLAY(8)
NAME
sudoreplay — replay sudo session logs
SYNOPSIS
sudoreplay [-h] [-d directory] [-f filter] [-m max_wait] [-s speed_factor] ID
sudoreplay [-h] [-d directory] -l [search expression]
DESCRIPTION
sudoreplay plays back or lists the output logs created by sudo. When replaying, sudoreplay can play the session
back in real-time, or the playback speed may be adjusted (faster or slower) based on the command line options.
The ID should either be a six character sequence of digits and upper case letters, e.g. 0100A5, or a pattern
matching the iolog_file option in the sudoers file. When a command is run via sudo with log_output enabled in
the sudoers file, a TSID=ID string is logged via syslog or to the sudo log file. The ID may also be determined
using sudoreplay's list mode.
In list mode, sudoreplay can be used to find the ID of a session based on a number of criteria such as the user,
tty or command run.
In replay mode, if the standard output has not been redirected, sudoreplay will act on the following keys:
‘ ’ (space) Pause output; press any key to resume.
‘<’ Reduce the playback speed by one half.
‘>’ Double the playback speed.
The options are as follows:
-d directory Use directory to for the session logs instead of the default, /var/log/sudo-io.
-f filter By default, sudoreplay will play back the command's standard output, standard error and tty out‐
put. The -f option can be used to select which of these to output. The filter argument is a
comma-separated list, consisting of one or more of following: stdout, stderr, and ttyout.
-h The -h (help) option causes sudoreplay to print a short help message to the standard output and
exit.
-l [search expression]
Enable “list mode”. In this mode, sudoreplay will list available sessions in a format similar to
the sudo log file format, sorted by file name (or sequence number). If a search expression is
specified, it will be used to restrict the IDs that are displayed. An expression is composed of
the following predicates:
command pattern
Evaluates to true if the command run matches pattern. On systems with POSIX regular
expression support, the pattern may be an extended regular expression. On systems without
POSIX regular expression support, a simple substring match is performed instead.
cwd directory
Evaluates to true if the command was run with the specified current working directory.
fromdate date
Evaluates to true if the command was run on or after date. See Date and time format for a
description of supported date and time formats.
group runas_group
tty tty name
Evaluates to true if the command was run on the specified terminal device. The tty name
should be specified without the /dev/ prefix, e.g. tty01 instead of /dev/tty01.
user user name
Evaluates to true if the ID matches a command run by user name.
Predicates may be abbreviated to the shortest unique string (currently all predicates may be
shortened to a single character).
Predicates may be combined using and, or and ! operators as well as ‘(’ and ‘)’ grouping (note
that parentheses must generally be escaped from the shell). The and operator is optional, adja‐
cent predicates have an implied and unless separated by an or.
-m max_wait Specify an upper bound on how long to wait between key presses or output data. By default,
sudoreplay will accurately reproduce the delays between key presses or program output. However,
this can be tedious when the session includes long pauses. When the -m option is specified,
sudoreplay will limit these pauses to at most max_wait seconds. The value may be specified as a
floating point number, e.g. 2.5.
-s speed_factor
This option causes sudoreplay to adjust the number of seconds it will wait between key presses or
program output. This can be used to slow down or speed up the display. For example, a
speed_factor of 2 would make the output twice as fast whereas a speed_factor of .5 would make the
output twice as slow.
-V The -V (version) option causes sudoreplay to print its version number and exit.
Date and time format
The time and date may be specified multiple ways, common formats include:
HH:MM:SS am MM/DD/CCYY timezone
24 hour time may be used in place of am/pm.
HH:MM:SS am Month, Day Year timezone
24 hour time may be used in place of am/pm, and month and day names may be abbreviated. Note that month
and day of the week names must be specified in English.
CCYY-MM-DD HH:MM:SS
ISO time format
DD Month CCYY HH:MM:SS
The month name may be abbreviated.
Either time or date may be omitted, the am/pm and timezone are optional. If no date is specified, the current
day is assumed; if no time is specified, the first second of the specified date is used. The less significant
parts of both time and date may also be omitted, in which case zero is assumed.
The following are all valid time and date specifications:
now The current time and date.
tomorrow
Exactly one day from now.
a fortnight ago
The current time but 14 days ago.
10:01 am 9/17/2009
10:01 am, September 17, 2009.
10:01 am
10:01 am on the current day.
10 10:00 am on the current day.
9/17/2009
00:00 am, September 17, 2009.
10:01 am Sep 17, 2009
10:01 am, September 17, 2009.
FILES
/var/log/sudo-io The default I/O log directory.
/var/log/sudo-io/00/00/01/log
Example session log info.
/var/log/sudo-io/00/00/01/stdin
Example session standard input log.
/var/log/sudo-io/00/00/01/stdout
Example session standard output log.
/var/log/sudo-io/00/00/01/stderr
Example session standard error log.
/var/log/sudo-io/00/00/01/ttyin
Example session tty input file.
/var/log/sudo-io/00/00/01/ttyout
Example session tty output file.
/var/log/sudo-io/00/00/01/timing
Example session timing file.
Note that the stdin, stdout and stderr files will be empty unless sudo was used as part of a pipeline for a par‐
ticular command.
EXAMPLES
List sessions run by user millert:
# sudoreplay -l user millert
List sessions run by user bob with a command containing the string vi:
# sudoreplay -l user bob command vi
Todd C. Miller
BUGS
If you feel you have found a bug in sudoreplay, please submit a bug report at http://www.sudo.ws/sudo/bugs/
SUPPORT
Limited free support is available via the sudo-users mailing list, see http://www.sudo.ws/mailman/listinfo/sudo-
users to subscribe or search the archives.
DISCLAIMER
sudoreplay is provided “AS IS” and any express or implied warranties, including, but not limited to, the implied
warranties of merchantability and fitness for a particular purpose are disclaimed. See the LICENSE file dis‐
tributed with sudo or http://www.sudo.ws/sudo/license.html for complete details.
Sudo 1.8.6p7 July 12, 2012 Sudo 1.8.6p7
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