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SUDO_LOGSRVD.CONF(5)        BSD File Formats Manual       SUDO_LOGSRVD.CONF(5)

NAME
     sudo_logsrvd.conf — configuration for sudo_logsrvd

DESCRIPTION
     The sudo_logsrvd.conf file is used to configure the sudo_logsrvd log
     server.  It uses an INI-style format made up of sections in square brack-
     ets and “key = value” pairs specific to each section below the section
     name.  Depending on the key, values may be integers, booleans, or
     strings.  Section and key names are not case sensitive, but values are.

     The pound sign (‘#’) is used to indicate a comment.  Both the comment
     character and any text after it, up to the end of the line, are ignored.
     Lines beginning with a semi-colon (‘;’) are also ignored.

     Long lines can be continued with a backslash (‘\’) as the last character
     on the line.  Leading white space is removed from the beginning of lines
     even when the continuation character is used.

     The EXAMPLES section contains a copy of the default sudo_logsrvd.conf
     file.

     The following configuration sections are recognized:

        server
        relay
        iolog
        eventlog
        syslog
        logfile

     Each section is described in detail below.

   server
     The server section configures the address and port the server will listen
     on.  The following keys are recognized:

     listen_address = host[:port][(tls)]
           The host name or IP address, optional port to listen on and an op-
           tional Transport Layer Security (TLS) flag in parentheses.

           The host may be a host name, an IPv4 address, an IPv6 address in
           square brackets or the wild card entry ‘*’.  A host setting of ‘*’
           will cause sudo_logsrvd to listen on all configured network inter-
           faces.

           If the optional tls flag is present, sudo_logsrvd will secure the
           connection with TLS version 1.2 or 1.3.  Versions of TLS prior to
           1.2 are not supported.  See sudo_logsrvd(8) for details on generat-
           ing TLS keys and certificates.

           If a port is specified, it may either be a port number or a known
           service name as defined by the system service name database.  If no
           port is specified, port 30343 will be used for plaintext connec-
           tions and port 30344 will be used for TLS connections.

           The default value is:
                 listen_address = *:30343
                 listen_address = *:30344(tls)
           which will listen on all configured network interfaces for both
           plaintext and TLS connections.  Multiple listen_address lines may
           be specified to listen on more than one port or interface.

     server_log = string
           Where to log server warning and error messages.  Supported values
           are none, stderr, syslog, or a path name beginning with the ‘/’
           character.  A value of stderr is only effective when used in con-
           junction with the -n option.  The default value is syslog.

     pid_file = path
           The path to the file containing the process ID of the running
           sudo_logsrvd.  If set to an empty value, or if sudo_logsrvd is run
           with the -n option, no pid_file will be created.  If pid_file
           refers to a symbolic link, it will be ignored.  The default value
           is /run/sudo/sudo_logsrvd.pid.

     tcp_keepalive = boolean
           If true, sudo_logsrvd will enable the TCP keepalive socket option
           on the client connection.  This enables the periodic transmission
           of keepalive messages to the client.  If the client does not re-
           spond to a message in time, the connection will be closed.  De-
           faults to true.

     timeout = number
           The amount of time, in seconds, sudo_logsrvd will wait for the
           client to respond.  A value of 0 will disable the timeout.  The de-
           fault value is 30.

     tls_cacert = path
           The path to a certificate authority bundle file, in PEM format, to
           use instead of the system's default certificate authority database
           when authenticating clients.  The default is to use
           /etc/ssl/sudo/cacert.pem if it exists, otherwise the system's de-
           fault certificate authority database is used.

     tls_cert = path
           The path to the server's certificate file, in PEM format.  The de-
           fault value is /etc/ssl/sudo/certs/logsrvd_cert.pem.

     tls_checkpeer = bool
           If true, client certificates will be validated by sudo_logsrvd;
           clients without a valid certificate will be unable to connect.  If
           false, no validation of client certificates will be performed.  It
           true and client certificates are created using a private certifi-
           cate authority, the tls_cacert setting must be set to a CA bundle
           that contains the CA certificate used to generate the client cer-
           tificate.  The default value is false.

     tls_ciphers_v12 = string
           A list of ciphers to use for connections secured by TLS version 1.2
           only, separated by a colon ‘:’.  See the CIPHER LIST FORMAT section
           in openssl-ciphers(1) for full details.  The default value is
           “HIGH:!aNULL” which consists of encryption cipher suites with key
           lengths larger than 128 bits, and some cipher suites with 128-bit
           keys.  Cipher suites that offer no authentication are excluded.

     tls_ciphers_v13 = string
           A list of ciphers to use for connections secured by TLS version 1.3
           only, separated by a colon ‘:’.  Supported cipher suites depend on
           the version of OpenSSL used, but should include the following:

                 TLS_AES_128_GCM_SHA256
                 TLS_AES_256_GCM_SHA384
                 TLS_CHACHA20_POLY1305_SHA256
                 TLS_AES_128_CCM_SHA256
                 TLS_AES_128_CCM_8_SHA256

           The default cipher suite is “TLS_AES_256_GCM_SHA384”.

     tls_dhparams = path
           The path to a file containing custom Diffie-Hellman parameters in
           PEM format.  This file can be created with the following command:

           openssl dhparam -out /etc/sudo_logsrvd_dhparams.pem 2048

           By default, sudo_logsrvd will use the OpenSSL defaults for Diffie-
           Hellman key generation.

     tls_key = path
           The path to the server's private key file, in PEM format.  The de-
           fault value is /etc/ssl/sudo/private/logsrvd_key.pem.

     tls_verify = bool
           If true, sudo_logsrvd will validate its own certificate at startup
           time or when the configuration is changed.  If false, no verifica-
           tion is performed of the server certificate.  When using self-
           signed certificates without a certificate authority, this setting
           should be set to false.  The default value is true.

   relay
     The relay section configures the optional logsrv relay host and port the
     server will connect to.  The TLS configuration keys are optional, by de-
     fault the corresponding keys in the server section will be used.  They
     are only present in this section to make it possible for the relay con-
     nection to use a different set of TLS parameters from the client-facing
     server.  The following keys are recognized:

     connect_timeout = number
           The amount of time, in seconds, sudo_logsrvd will wait for the con-
           nection to a relay_host (see below) to complete.  Once the connec-
           tion is complete, the timeout setting controls the amount of time
           sudo_logsrvd will wait for the relay to respond.  A value of 0 will
           disable the timeout.  The default value is 30.

     relay_dir = path
           The directory in which log messages are temporarily stored before
           they are sent to the relay host.  Messages are stored in the wire
           format specified by sudo_logsrv.proto(5) The default value is
           /var/log/sudo_logsrvd.

     relay_host = host[:port][(tls)]
           The relay host name or IP address, optional port to connect to and
           an optional Transport Layer Security (TLS) flag in parentheses.
           The syntax is identical to listen_address in the server section
           with one exception: the wild card ‘*’ syntax is not supported.

           When this setting is enabled, messages from the client will be for-
           warded to one of the specified relay hosts instead of being stored
           locally.  The host could be running an instance of sudo_logsrvd or
           another server that supports the sudo_logsrv.proto(5) protocol.

           If multiple relay_host lines are specified, the first available re-
           lay host will be used.

     retry_interval = number
           The number of seconds to wait after a connection error before mak-
           ing a new attempt to forward a message to a relay host.  The de-
           fault value is 30.

     store_first = boolean
           If true, sudo_logsrvd will store logs locally before relaying them.
           Once the log is complete, a connection to the relay host is opened
           and the log is relayed.  If the network connection is interrupted
           before the log can be fully transferred, it will be retransmitted
           later.  The default is to relay logs in real-time.

     tcp_keepalive = boolean
           If true, sudo_logsrvd will enable the TCP keepalive socket option
           on the relay connection.  This enables the periodic transmission of
           keepalive messages to the relay server.  If the relay does not re-
           spond to a message in time, the connection will be closed.

     timeout = number
           The amount of time, in seconds, sudo_logsrvd will wait for the re-
           lay server to respond after a connection has succeeded.  A value of
           0 will disable the timeout.  The default value is 30.

     tls_cacert = path
           The path to a certificate authority bundle file, in PEM format, to
           use instead of the system's default certificate authority database
           when authenticating clients.  The default is to use the value spec-
           ified in the server section, or the system's default certificate
           authority database if no value is set.

     tls_cert = path
           The path to the server's certificate file, in PEM format.  The de-
           fault is to use the value specified in the server section.

     tls_checkpeer = bool
           If true, the relay host's certificate will be validated by
           sudo_logsrvd; connections to a relay without a valid certificate
           will fail.  If false, no validation of relay certificates will be
           performed.  It true and relay certificates are created using a pri-
           vate certificate authority, the tls_cacert setting must be set to a
           CA bundle that contains the CA certificate used to generate the re-
           lay certificate.  The default is to use the value specified in the
           server section.

     tls_ciphers_v12 = string
           A list of ciphers to use for connections secured by TLS version 1.2
           only, separated by a colon ‘:’.  See the CIPHER LIST FORMAT section
           in openssl-ciphers(1) for full details.  The default is to use the
           value specified in the server section.

     tls_ciphers_v13 = string
           A list of ciphers to use for connections secured by TLS version 1.3
           only, separated by a colon ‘:’.  Supported cipher suites depend on
           the version of OpenSSL used, see the server section for more infor-
           mation.  The default is to use the value specified in the server
           section.

     tls_dhparams = path
           The path to a file containing custom Diffie-Hellman parameters in
           PEM format.  The default is to use the value specified in the
           server section.

     tls_key = path
           The path to the server's private key file, in PEM format.  The de-
           fault is to use the value specified in the server section.

     tls_verify = bool
           If true, the server's certificate used for relaying will be veri-
           fied at startup.  If false, no verification is performed of the
           server certificate.  When using self-signed certificates without a
           certificate authority, this setting should be set to false.  The
           default is to use the value specified in the server section.

   iolog
     The iolog section configures I/O log parameters.  These settings are
     identical to the I/O configuration in sudoers(5).  The following keys are
     recognized:

     iolog_compress = boolean
           If set, I/O logs will be compressed using zlib.  Enabling compres-
           sion can make it harder to view the logs in real-time as the pro-
           gram is executing due to buffering.  The default value is false.

     iolog_dir = path
           The top-level directory to use when constructing the path name for
           the I/O log directory.  The session sequence number, if any, is
           stored in the directory.  The default value is /var/log/sudo-io.

           The following percent (‘%’) escape sequences are supported:

           %{seq}
                 expanded to a monotonically increasing base-36 sequence num-
                 ber, such as 0100A5, where every two digits are used to form
                 a new directory, e.g., 01/00/A5

           %{user}
                 expanded to the invoking user's login name

           %{group}
                 expanded to the name of the invoking user's real group-ID

           %{runas_user}
                 expanded to the login name of the user the command will be
                 run as (e.g., root)

           %{runas_group}
                 expanded to the group name of the user the command will be
                 run as (e.g., wheel)

           %{hostname}
                 expanded to the local host name without the domain name

           %{command}
                 expanded to the base name of the command being run

           In addition, any escape sequences supported by the system's
           strftime(3) function will be expanded.

           To include a literal ‘%’ character, the string ‘%%’ should be used.

     iolog_file = path
           The path name, relative to iolog_dir, in which to store I/O logs.
           It is possible for iolog_file to contain directory components.  The
           default value is “%{seq}”.

           See the iolog_dir setting above for a list of supported percent
           (‘%’) escape sequences.

           In addition to the escape sequences, path names that end in six or
           more Xs will have the Xs replaced with a unique combination of dig-
           its and letters, similar to the mktemp(3) function.

           If the path created by concatenating iolog_dir and iolog_file al-
           ready exists, the existing I/O log file will be truncated and over-
           written unless iolog_file ends in six or more Xs.

     iolog_flush = boolean
           If set, I/O log data is flushed to disk after each write instead of
           buffering it.  This makes it possible to view the logs in real-time
           as the program is executing but may significantly reduce the effec-
           tiveness of I/O log compression.  I/O logs are always flushed be-
           fore sending a commit point to the client regardless of this set-
           ting.  The default value is true.

     iolog_group = name
           The group name to look up when setting the group-ID on new I/O log
           files and directories.  If iolog_group is not set, the primary
           group-ID of the user specified by iolog_user is used. If neither
           iolog_group nor iolog_user are set, I/O log files and directories
           are created with group-ID 0.

     iolog_mode = mode
           The file mode to use when creating I/O log files.  Mode bits for
           read and write permissions for owner, group, or other are honored,
           everything else is ignored.  The file permissions will always in-
           clude the owner read and write bits, even if they are not present
           in the specified mode.  When creating I/O log directories, search
           (execute) bits are added to match the read and write bits specified
           by iolog_mode.  The default value is 0600.

     iolog_user = name
           The user name to look up when setting the owner of new I/O log
           files and directories.  If iolog_group is set, it will be used in-
           stead of the user's primary group-ID.  By default, I/O log files
           and directories are created with user and group-ID 0.

     log_passwords = bool
           Most programs that require a user's password will disable echo be-
           fore reading the password to avoid displaying the plaintext pass-
           word on the screen.  However, if terminal input is being logged,
           the password will still be present in the I/O log.  If
           log_passwords is set to false, sudo_logsrvd will attempt to prevent
           passwords from being logged.  It does this by using the regular ex-
           pressions in passprompt_regex to match a password prompt in the
           terminal output buffer.  When a match is found, input characters in
           the I/O log will be replaced with ‘*’ until either a line feed or
           carriage return is found in the terminal input or a new terminal
           output buffer is received.  If, however, a program displays charac-
           ters as the user types them (such as sudo when the pwfeedback op-
           tion is set), only the first character of the password will be re-
           placed in the I/O log.  The default value is true.

     maxseq = number
           The maximum sequence number that will be substituted for the
           “%{seq}” escape in the I/O log file (see the iolog_dir description
           above for more information).  While the value substituted for
           “%{seq}” is in base 36, maxseq itself should be expressed in deci-
           mal.  Values larger than 2176782336 (which corresponds to the base
           36 sequence number “ZZZZZZ”) will be silently truncated to
           2176782336.  The default value is 2176782336.

     passprompt_regex = string
           One or more POSIX extended regular expressions used to match pass-
           word prompts in the terminal output when log_passwords is disabled.
           As an extension, if the regular expression begins with “(?i)”, it
           will be matched in a case-insensitive manner.  Multiple
           passprompt_regex settings may be specified.  Each regular expres-
           sion is limited to 1024 characters.  The default value is
           “[Pp]assword[: ]*”.

   eventlog
     The eventlog section configures how (and if) security policy events are
     logged.

     log_type = string
           Where to log accept, reject, and alert events reported by the pol-
           icy.  Supported values are syslog, logfile, and none.  The default
           value is syslog.

     log_exit = boolean
           If true, sudo_logsrvd will log an event when a command exits or is
           terminated by a signal.  Defaults to false.

     log_format = string
           The event log format.  Supported log formats are “sudo” for tradi-
           tional sudo-style logs and “json” for JSON-format logs.  The JSON
           log entries contain the full contents of the accept, reject, exit
           and alert messages.  The default value is sudo.

   syslog
     The syslog section configures how events are logged via syslog(3).

     facility = string
           Syslog facility if syslog is being used for logging.  Defaults to
           authpriv.

           The following syslog facilities are supported: authpriv (if your OS
           supports it), auth, daemon, user, local0, local1, local2, local3,
           local4, local5, local6, and local7.

     accept_priority = string
           Syslog priority to use when the user is allowed to run a command
           and authentication is successful.  Defaults to notice.

           The following syslog priorities are supported: alert, crit, debug,
           emerg, err, info, notice, warning, and none.  Setting it to a value
           of none will disable logging of successful commands.

     reject_priority = string
           Syslog priority to use when the user is not allowed to run a com-
           mand or when authentication is unsuccessful.  Defaults to alert.

           See accept_priority for the list of supported syslog priorities.

     alert_priority = string
           Syslog priority to use for event log alert messages received from
           the client.  Defaults to alert.

           See accept_priority for the list of supported syslog priorities.

     maxlen = number
           On many systems, syslog(3) has a relatively small log buffer.  IETF
           RFC 5424 states that syslog servers must support messages of at
           least 480 bytes and should support messages up to 2048 bytes.  By
           default, sudo_logsrvd creates log messages up to 960 bytes which
           corresponds to the historic BSD syslog implementation which used a
           1024 byte buffer to store the message, date, hostname, and program
           name.

           To prevent syslog messages from being truncated, sudo_logsrvd will
           split up sudo-style log messages that are larger than maxlen bytes.
           When a message is split, additional parts will include the string
           “(command continued)” after the user name and before the continued
           command line arguments.  JSON-format log entries are never split
           and are not affected by maxlen.

     server_facility = string
           Syslog facility if syslog is being used for server warning mes-
           sages.  See above for a list of supported facilities.  Defaults to
           daemon

   logfile
     The logfile section consists of settings related to logging to a plain
     file (not syslog).

     path = string
           The path to the file-based event log.  This path must be fully-
           qualified and start with a ‘/’ character.  The default value is
           /var/log/sudo.log.

     time_format = string
           The string used when formatting the date and time for file-based
           event logs.  Formatting is performed via the system's strftime(3)
           function so any escape sequences supported by that function will be
           expanded.  The default value is “%h %e %T” which produces dates
           like “Oct 3 07:15:24” in the ‘C’ locale.

FILES
     /etc/sudo_logsrvd.conf    Sudo log server configuration file

EXAMPLES
     #
     # sudo logsrv daemon configuration
     #

     [server]
     # The host name or IP address and port to listen on with an optional TLS
     # flag.  If no port is specified, port 30343 will be used for plaintext
     # connections and port 30344 will be used to TLS connections.
     # The following forms are accepted:
     #   listen_address = hostname(tls)
     #   listen_address = hostname:port(tls)
     #   listen_address = IPv4_address(tls)
     #   listen_address = IPv4_address:port(tls)
     #   listen_address = [IPv6_address](tls)
     #   listen_address = [IPv6_address]:port(tls)
     #
     # The (tls) suffix should be omitted for plaintext connections.
     #
     # Multiple listen_address settings may be specified.
     # The default is to listen on all addresses.
     #listen_address = *:30343
     #listen_address = *:30344(tls)

     # The file containing the ID of the running sudo_logsrvd process.
     #pid_file = /run/sudo/sudo_logsrvd.pid

     # Where to log server warnings: none, stderr, syslog, or a path name.
     #server_log = syslog

     # If true, enable the SO_KEEPALIVE socket option on client connections.
     # Defaults to true.
     #tcp_keepalive = true

     # The amount of time, in seconds, the server will wait for the client to
     # respond.  A value of 0 will disable the timeout.  The default value is 30.
     #timeout = 30

     # If true, the server will validate its own certificate at startup.
     # Defaults to true.
     #tls_verify = true

     # If true, client certificates will be validated by the server;
     # clients without a valid certificate will be unable to connect.
     # By default, client certs are not checked.
     #tls_checkpeer = false

     # Path to a certificate authority bundle file in PEM format to use
     # instead of the system's default certificate authority database.
     #tls_cacert = /etc/ssl/sudo/cacert.pem

     # Path to the server's certificate file in PEM format.
     # Required for TLS connections.
     #tls_cert = /etc/ssl/sudo/certs/logsrvd_cert.pem

     # Path to the server's private key file in PEM format.
     # Required for TLS connections.
     #tls_key = /etc/ssl/sudo/private/logsrvd_key.pem

     # TLS cipher list (see "CIPHER LIST FORMAT" in the openssl-ciphers manual).
     # This setting is only effective if the negotiated protocol is TLS version
     # 1.2.  The default cipher list is HIGH:!aNULL.
     #tls_ciphers_v12 = HIGH:!aNULL

     # TLS cipher list if the negotiated protocol is TLS version 1.3.
     # The default cipher list is TLS_AES_256_GCM_SHA384.
     #tls_ciphers_v13 = TLS_AES_256_GCM_SHA384

     # Path to the Diffie-Hellman parameter file in PEM format.
     # If not set, the server will use the OpenSSL defaults.
     #tls_dhparams = /etc/ssl/sudo/logsrvd_dhparams.pem

     [relay]
     # The host name or IP address and port to send logs to in relay mode.
     # The syntax is identical to listen_address with the exception of
     # the wild card ('*') syntax.  When this setting is enabled, logs will
     # be relayed to the specified host instead of being stored locally.
     # This setting is not enabled by default.
     #relay_host = relayhost.dom.ain
     #relay_host = relayhost.dom.ain(tls)

     # The amount of time, in seconds, the server will wait for a connection
     # to the relay server to complete.  A value of 0 will disable the timeout.
     # The default value is 30.
     #connect_timeout = 30

     # The directory to store messages in before they are sent to the relay.
     # Messages are stored in wire format.
     # The default value is /var/log/sudo_logsrvd.
     #relay_dir = /var/log/sudo_logsrvd

     # The number of seconds to wait after a connection error before
     # making a new attempt to forward a message to a relay host.
     # The default value is 30.
     #retry_interval = 30

     # Whether to store the log before relaying it.  If true, enable store
     # and forward mode.  If false, the client connection is immediately
     # relayed.  Defaults to false.
     #store_first = true

     # If true, enable the SO_KEEPALIVE socket option on relay connections.
     # Defaults to true.
     #tcp_keepalive = true

     # The amount of time, in seconds, the server will wait for the relay to
     # respond.  A value of 0 will disable the timeout.  The default value is 30.
     #timeout = 30

     # If true, the server's relay certificate will be verified at startup.
     # The default is to use the value in the [server] section.
     #tls_verify = true

     # Whether to verify the relay's certificate for TLS connections.
     # The default is to use the value in the [server] section.
     #tls_checkpeer = false

     # Path to a certificate authority bundle file in PEM format to use
     # instead of the system's default certificate authority database.
     # The default is to use the value in the [server] section.
     #tls_cacert = /etc/ssl/sudo/cacert.pem

     # Path to the server's certificate file in PEM format.
     # The default is to use the certificate in the [server] section.
     #tls_cert = /etc/ssl/sudo/certs/logsrvd_cert.pem

     # Path to the server's private key file in PEM format.
     # The default is to use the key in the [server] section.
     #tls_key = /etc/ssl/sudo/private/logsrvd_key.pem

     # TLS cipher list (see "CIPHER LIST FORMAT" in the openssl-ciphers manual).
     # this setting is only effective if the negotiated protocol is TLS version
     # 1.2.  The default is to use the value in the [server] section.
     #tls_ciphers_v12 = HIGH:!aNULL

     # TLS cipher list if the negotiated protocol is TLS version 1.3.
     # The default is to use the value in the [server] section.
     #tls_ciphers_v13 = TLS_AES_256_GCM_SHA384

     # Path to the Diffie-Hellman parameter file in PEM format.
     # The default is to use the value in the [server] section.
     #tls_dhparams = /etc/ssl/sudo/logsrvd_dhparams.pem

     [iolog]
     # The top-level directory to use when constructing the path name for the
     # I/O log directory.  The session sequence number, if any, is stored here.
     #iolog_dir = /var/log/sudo-io

     # The path name, relative to iolog_dir, in which to store I/O logs.
     # It is possible for iolog_file to contain directory components.
     #iolog_file = %{seq}

     # If set, I/O logs will be compressed using zlib.  Enabling compression can
     # make it harder to view the logs in real-time as the program is executing.
     #iolog_compress = false

     # If set, I/O log data is flushed to disk after each write instead of
     # buffering it.  This makes it possible to view the logs in real-time
     # as the program is executing but reduces the effectiveness of compression.
     #iolog_flush = true

     # The group to use when creating new I/O log files and directories.
     # If iolog_group is not set, the primary group-ID of the user specified
     # by iolog_user is used.  If neither iolog_group nor iolog_user
     # are set, I/O log files and directories are created with group-ID 0.
     #iolog_group = wheel

     # The user to use when setting the user-ID and group-ID of new I/O
     # log files and directories.  If iolog_group is set, it will be used
     # instead of the user's primary group-ID.  By default, I/O log files
     # and directories are created with user and group-ID 0.
     #iolog_user = root

     # The file mode to use when creating I/O log files.  The file permissions
     # will always include the owner read and write bits, even if they are
     # not present in the specified mode.  When creating I/O log directories,
     # search (execute) bits are added to match the read and write bits
     # specified by iolog_mode.
     #iolog_mode = 0600

     # If disabled, sudo_logsrvd will attempt to avoid logging plaintext
     # password in the terminal input using passprompt_regex.
     #log_passwords = true

     # The maximum sequence number that will be substituted for the "%{seq}"
     # escape in the I/O log file.  While the value substituted for "%{seq}"
     # is in base 36, maxseq itself should be expressed in decimal.  Values
     # larger than 2176782336 (which corresponds to the base 36 sequence
     # number "ZZZZZZ") will be silently truncated to 2176782336.
     #maxseq = 2176782336

     # One or more POSIX extended regular expressions used to match
     # password prompts in the terminal output when log_passwords is
     # disabled.  Multiple passprompt_regex settings may be specified.
     #passprompt_regex = [Pp]assword[: ]*
     #passprompt_regex = [Pp]assword for [a-z0-9]+: *

     [eventlog]
     # Where to log accept, reject, exit, and alert events.
     # Accepted values are syslog, logfile, or none.
     # Defaults to syslog
     #log_type = syslog

     # Whether to log an event when a command exits or is terminated by a signal.
     # Defaults to false
     #log_exit = true

     # Event log format.
     # Currently only sudo-style event logs are supported.
     #log_format = sudo

     [syslog]
     # The maximum length of a syslog payload.
     # On many systems, syslog(3) has a relatively small log buffer.
     # IETF RFC 5424 states that syslog servers must support messages
     # of at least 480 bytes and should support messages up to 2048 bytes.
     # Messages larger than this value will be split into multiple messages.
     #maxlen = 960

     # The syslog facility to use for event log messages.
     # The following syslog facilities are supported: authpriv (if your OS
     # supports it), auth, daemon, user, local0, local1, local2, local3,
     # local4, local5, local6, and local7.
     #facility = authpriv

     # Syslog priority to use for event log accept messages, when the command
     # is allowed by the security policy.  The following syslog priorities are
     # supported: alert, crit, debug, emerg, err, info, notice, warning, none.
     #accept_priority = notice

     # Syslog priority to use for event log reject messages, when the command
     # is not allowed by the security policy.
     #reject_priority = alert

     # Syslog priority to use for event log alert messages reported by the
     # client.
     #alert_priority = alert

     # The syslog facility to use for server warning messages.
     # Defaults to daemon.
     #server_facility = daemon

     [logfile]
     # The path to the file-based event log.
     # This path must be fully-qualified and start with a '/' character.
     #path = /var/log/sudo.log

     # The format string used when formatting the date and time for
     # file-based event logs.  Formatting is performed via strftime(3) so
     # any format string supported by that function is allowed.
     #time_format = %h %e %T

SEE ALSO
     strftime(3), sudo.conf(5), sudoers(5), sudo(8), sudo_logsrvd(8)

AUTHORS
     Many people have worked on sudo over the years; this version consists of
     code written primarily by:

           Todd C. Miller

     See the CONTRIBUTORS.md file in the sudo distribution
     (https://www.sudo.ws/about/contributors/) for an exhaustive list of peo-
     ple who have contributed to sudo.

BUGS
     If you believe you have found a bug in sudo, you can submit a bug report
     at https://bugzilla.sudo.ws/

SUPPORT
     Limited free support is available via the sudo-users mailing list, see
     https://www.sudo.ws/mailman/listinfo/sudo-users to subscribe or search
     the archives.

DISCLAIMER
     sudo is provided “AS IS” and any express or implied warranties, includ-
     ing, but not limited to, the implied warranties of merchantability and
     fitness for a particular purpose are disclaimed.  See the LICENSE.md file
     distributed with sudo or https://www.sudo.ws/about/license/ for complete
     details.

Sudo 1.9.13p3                  January 16, 2023                  Sudo 1.9.13p3

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