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diff --git a/docs/sudo_logsrvd.conf.mdoc.in b/docs/sudo_logsrvd.conf.mdoc.in new file mode 100644 index 0000000..8fee88c --- /dev/null +++ b/docs/sudo_logsrvd.conf.mdoc.in @@ -0,0 +1,1038 @@ +.\" +.\" SPDX-License-Identifier: ISC +.\" +.\" Copyright (c) 2019-2023 Todd C. Miller <Todd.Miller@sudo.ws> +.\" +.\" Permission to use, copy, modify, and distribute this software for any +.\" purpose with or without fee is hereby granted, provided that the above +.\" copyright notice and this permission notice appear in all copies. +.\" +.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES +.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF +.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR +.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES +.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN +.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF +.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. +.\" +.Dd January 16, 2023 +.Dt SUDO_LOGSRVD.CONF @mansectform@ +.Os Sudo @PACKAGE_VERSION@ +.Sh NAME +.Nm sudo_logsrvd.conf +.Nd configuration for sudo_logsrvd +.Sh DESCRIPTION +The +.Nm sudo_logsrvd.conf +file is used to configure the +.Nm sudo_logsrvd +log server. +It uses an INI-style format made up of sections in square brackets and +.Dq 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. +.Pp +The pound sign +.Pq Ql # +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 +.Pq Ql \&; +are also ignored. +.Pp +Long lines can be continued with a backslash +.Pq Ql \e +as the last character on the line. +Leading white space is removed from the beginning of lines +even when the continuation character is used. +.Pp +The +.Sx EXAMPLES +section contains a copy of the default +.Nm +file. +.Pp +The following configuration sections are recognized: +.Pp +.Bl -bullet -compact -offset 1n -width 1n +.It +server +.It +relay +.It +iolog +.It +eventlog +.It +syslog +.It +logfile +.El +.Pp +Each section is described in detail below. +.Ss server +The +.Em server +section configures the address and port the server will listen on. +The following keys are recognized: +.Bl -tag -width 4n +.It listen_address = host Ns Oo : Ns port Oc Ns Op (tls) +The host name or IP address, optional port to listen on and +an optional Transport Layer Security (TLS) flag in parentheses. +.Pp +The host may be a host name, an IPv4 address, an IPv6 address +in square brackets or the wild card entry +.Ql * . +A host setting of +.Ql * +will cause +.Nm sudo_logsrvd +to listen on all configured network interfaces. +.Pp +If the optional tls flag is present, +.Nm 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 +.Xr sudo_logsrvd @mansectsu@ +for details on generating TLS keys and certificates. +.Pp +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 +connections and port 30344 will be used for TLS connections. +.Pp +The default value is: +.Bd -literal -compact -offset indent +listen_address = *:30343 +listen_address = *:30344(tls) +.Ed +which will listen on all configured network interfaces for both +plaintext and TLS connections. +Multiple +.Em listen_address +lines may be specified to listen on more than one port or interface. +.It server_log = string +Where to log server warning and error messages. +Supported values are +.Em none , +.Em stderr , +.Em syslog , +or a path name beginning with the +.Ql / +character. +A value of +.Em stderr +is only effective when used in conjunction with the +.Fl n +option. +The default value is +.Em syslog . +.It pid_file = path +The path to the file containing the process ID of the running +.Nm sudo_logsrvd . +If set to an empty value, or if +.Nm sudo_logsrvd +is run with the +.Fl n +option, no +.Em pid_file +will be created. +If +.Em pid_file +refers to a symbolic link, it will be ignored. +The default value is +.Pa @rundir@/sudo_logsrvd.pid . +.It tcp_keepalive = boolean +If true, +.Nm 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 respond to a message in time, the connection will +be closed. +Defaults to +.Em true . +.It timeout = number +The amount of time, in seconds, +.Nm sudo_logsrvd +will wait for the client to respond. +A value of 0 will disable the timeout. +The default value is +.Em 30 . +.It 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 +.Pa /etc/ssl/sudo/cacert.pem +if it exists, otherwise the system's default certificate authority +database is used. +.It tls_cert = path +The path to the server's certificate file, in PEM format. +The default value is +.Pa /etc/ssl/sudo/certs/logsrvd_cert.pem . +.It tls_checkpeer = bool +If true, client certificates will be validated by +.Nm 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 certificate +authority, the +.Em tls_cacert +setting must be set to a CA bundle that contains the CA certificate +used to generate the client certificate. +The default value is +.Em false . +.It tls_ciphers_v12 = string +A list of ciphers to use for connections secured by TLS version 1.2 only, +separated by a colon +.Ql :\& . +See the +.Sx CIPHER LIST FORMAT +section in +.Xr openssl-ciphers 1 +for full details. +The default value is +.Dq 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. +.It tls_ciphers_v13 = string +A list of ciphers to use for connections secured by TLS version 1.3 only, +separated by a colon +.Ql :\& . +Supported cipher suites depend on the version of OpenSSL used, +but should include the following: +.Pp +.Bl -tag -compact -width 4n -offset indent +.It TLS_AES_128_GCM_SHA256 +.It TLS_AES_256_GCM_SHA384 +.It TLS_CHACHA20_POLY1305_SHA256 +.It TLS_AES_128_CCM_SHA256 +.It TLS_AES_128_CCM_8_SHA256 +.El +.Pp +The default cipher suite is +.Dq TLS_AES_256_GCM_SHA384 . +.It 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: +.Bd -literal +openssl dhparam -out /etc/sudo_logsrvd_dhparams.pem 2048 +.Ed +.Pp +By default, +.Nm sudo_logsrvd +will use the OpenSSL defaults for Diffie-Hellman key generation. +.It tls_key = path +The path to the server's private key file, in PEM format. +The default value is +.Pa /etc/ssl/sudo/private/logsrvd_key.pem . +.It tls_verify = bool +If true, +.Nm sudo_logsrvd +will validate its own certificate at startup time or when the +configuration is changed. +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 value is +.Em true . +.El +.Ss relay +The +.Em relay +section configures the optional logsrv relay host and port the server will +connect to. +The TLS configuration keys are optional, by default the corresponding +keys in the +.Sx server +section will be used. +They are only present in this section to make it possible for the relay +connection to use a different set of TLS parameters from the client-facing +server. +The following keys are recognized: +.Bl -tag -width 4n +.It connect_timeout = number +The amount of time, in seconds, +.Nm sudo_logsrvd +will wait for the connection to a +.Em relay_host +(see below) to complete. +Once the connection is complete, the +.Em timeout +setting controls the amount of time +.Nm sudo_logsrvd +will wait for the relay to respond. +A value of 0 will disable the timeout. +The default value is +.Em 30 . +.It 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 +.Xr sudo_logsrv.proto @mansectform@ +The default value is +.Pa @relay_dir@ . +.It relay_host = host Ns Oo : Ns port Oc Ns Op (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 +.Em listen_address +in the +.Sx server +section with one exception: the wild card +.Ql * +syntax is not supported. +.Pp +When this setting is enabled, messages from the client will be forwarded +to one of the specified relay hosts instead of being stored locally. +The +.Ar host +could be running an instance of +.Nm sudo_logsrvd +or another server that supports the +.Xr sudo_logsrv.proto @mansectform@ +protocol. +.Pp +If multiple +.Em relay_host +lines are specified, the first available relay host will be used. +.It retry_interval = number +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 +.Em 30 . +.It store_first = boolean +If true, +.Nm 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. +.It tcp_keepalive = boolean +If true, +.Nm 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 respond to a message in time, the connection will +be closed. +.It timeout = number +The amount of time, in seconds, +.Nm sudo_logsrvd +will wait for the relay server to respond after a connection has succeeded. +A value of 0 will disable the timeout. +The default value is +.Em 30 . +.It 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 specified in the +.Sx server +section, or the system's default certificate authority database if +no value is set. +.It tls_cert = path +The path to the server's certificate file, in PEM format. +The default is to use the value specified in the +.Sx server +section. +.It tls_checkpeer = bool +If true, the relay host's certificate will be validated by +.Nm 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 private certificate +authority, the +.Em tls_cacert +setting must be set to a CA bundle that contains the CA certificate +used to generate the relay certificate. +The default is to use the value specified in the +.Sx server +section. +.It tls_ciphers_v12 = string +A list of ciphers to use for connections secured by TLS version 1.2 only, +separated by a colon +.Ql :\& . +See the +.Sx CIPHER LIST FORMAT +section in +.Xr openssl-ciphers 1 +for full details. +The default is to use the value specified in the +.Sx server +section. +.It tls_ciphers_v13 = string +A list of ciphers to use for connections secured by TLS version 1.3 only, +separated by a colon +.Ql :\& . +Supported cipher suites depend on the version of OpenSSL used, +see the +.Sx server +section for more information. +The default is to use the value specified in the +.Sx server +section. +.It 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 +.Sx server +section. +.It tls_key = path +The path to the server's private key file, in PEM format. +The default is to use the value specified in the +.Sx server +section. +.It tls_verify = bool +If true, the server's certificate used for relaying will be verified 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 +.Sx server +section. +.El +.Ss iolog +The +.Em iolog +section configures I/O log parameters. +These settings are identical to the I/O configuration in +.Xr sudoers @mansectform@ . +The following keys are recognized: +.Bl -tag -width 4n +.It iolog_compress = boolean +If set, I/O logs will be compressed using +.Sy zlib . +Enabling compression can make it harder to view the logs in real-time as +the program is executing due to buffering. +The default value is +.Em false . +.It 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 +.Pa @iolog_dir@ . +.Pp +The following percent +.Pq Ql % +escape sequences are supported: +.Bl -tag -width 4n +.It %{seq} +expanded to a monotonically increasing base-36 sequence number, such as 0100A5, +where every two digits are used to form a new directory, e.g., +.Pa 01/00/A5 +.It %{user} +expanded to the invoking user's login name +.It %{group} +expanded to the name of the invoking user's real group-ID +.It %{runas_user} +expanded to the login name of the user the command will +be run as (e.g., root) +.It %{runas_group} +expanded to the group name of the user the command will +be run as (e.g., wheel) +.It %{hostname} +expanded to the local host name without the domain name +.It %{command} +expanded to the base name of the command being run +.El +.Pp +In addition, any escape sequences supported by the system's +.Xr strftime 3 +function will be expanded. +.Pp +To include a literal +.Ql % +character, the string +.Ql %% +should be used. +.It iolog_file = path +The path name, relative to +.Em iolog_dir , +in which to store I/O logs. +It is possible for +.Em iolog_file +to contain directory components. +The default value is +.Dq %{seq} . +.Pp +See the +.Em iolog_dir +setting above for a list of supported percent +.Pq Ql % +escape sequences. +.Pp +In addition to the escape sequences, path names that end in six or +more +.Em X Ns s +will have the +.Em X Ns s +replaced with a unique combination of digits and letters, similar to the +.Xr mktemp 3 +function. +.Pp +If the path created by concatenating +.Em iolog_dir +and +.Em iolog_file +already exists, the existing I/O log file will be truncated and +overwritten unless +.Em iolog_file +ends in six or +more +.Em X Ns s . +.It 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 effectiveness +of I/O log compression. +I/O logs are always flushed before sending a commit point to the client +regardless of this setting. +The default value is +.Em true . +.It iolog_group = name +The group name to look up when setting the group-ID on new I/O log +files and directories. +If +.Em iolog_group +is not set, +the primary group-ID of the user specified by +.Em iolog_user is used. +If neither +.Em iolog_group +nor +.Em iolog_user +are set, I/O log files and directories are created with group-ID 0. +.It 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 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 +.Em iolog_mode . +The default value is +.Em 0600 . +.It iolog_user = name +The user name to look up when setting the owner of new +I/O log files and directories. +If +.Em 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. +.It log_passwords = bool +Most programs that require a user's password will disable echo before +reading the password to avoid displaying the plaintext password on +the screen. +However, if terminal input is being logged, +the password will still be present in the I/O log. +If +.Em log_passwords +is set to +.Em false , +.Nm sudo_logsrvd +will attempt to prevent passwords from being logged. +It does this by using the regular expressions in +.Em 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 +.Ql * +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 characters as the user types them +(such as +.Nm sudo +when the +.Em pwfeedback +option is set), only the +first character of the password will be replaced in the I/O log. +The default value is +.Em true . +.It maxseq = number +The maximum sequence number that will be substituted for the +.Dq %{seq} +escape in the I/O log file (see the +.Em iolog_dir +description above for more information). +While the value substituted for +.Dq %{seq} +is in base 36, +.Em maxseq +itself should be expressed in decimal. +Values larger than 2176782336 (which corresponds to the +base 36 sequence number +.Dq ZZZZZZ ) +will be silently truncated to 2176782336. +The default value is +.Em 2176782336 . +.It passprompt_regex = string +One or more POSIX extended regular expressions used to +match password prompts in the terminal output when +.Em log_passwords +is disabled. +As an extension, if the regular expression begins with +.Dq (?i) , +it will be matched in a case-insensitive manner. +Multiple +.Em passprompt_regex +settings may be specified. +Each regular expression is limited to 1024 characters. +The default value is +.Dq [Pp]assword[: ]* . +.El +.Ss eventlog +The +.Em eventlog +section configures how (and if) security policy events are logged. +.Bl -tag -width 4n +.It log_type = string +Where to log accept, reject, and alert events reported by the policy. +Supported values are +.Em syslog , +.Em logfile , +and +.Em none . +The default value is +.Em syslog . +.It log_exit = boolean +If true, +.Nm sudo_logsrvd +will log an event when a command exits or is terminated by a signal. +Defaults to +.Em false . +.It log_format = string +The event log format. +Supported log formats are +.Dq sudo +for traditional sudo-style logs and +.Dq 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 +.Em sudo . +.El +.Ss syslog +The +.Em syslog +section configures how events are logged via +.Xr syslog 3 . +.Bl -tag -width 4n +.It facility = string +Syslog facility if syslog is being used for logging. +Defaults to +.Em @logfac@ . +.Pp +The following syslog facilities are supported: +.Sy authpriv +(if your +OS supports it), +.Sy auth , +.Sy daemon , +.Sy user , +.Sy local0 , +.Sy local1 , +.Sy local2 , +.Sy local3 , +.Sy local4 , +.Sy local5 , +.Sy local6 , +and +.Sy local7 . +.It accept_priority = string +Syslog priority to use when the user is allowed to run a command and +authentication is successful. +Defaults to +.Em @goodpri@ . +.Pp +The following syslog priorities are supported: +.Sy alert , +.Sy crit , +.Sy debug , +.Sy emerg , +.Sy err , +.Sy info , +.Sy notice , +.Sy warning , +and +.Sy none . +Setting it to a value of +.Sy none +will disable logging of successful commands. +.It reject_priority = string +Syslog priority to use when the user is not allowed to run a command or +when authentication is unsuccessful. +Defaults to +.Em @badpri@ . +.Pp +See +.Em accept_priority +for the list of supported syslog priorities. +.It alert_priority = string +Syslog priority to use for event log alert messages received from the client. +Defaults to +.Em @badpri@ . +.Pp +See +.Em accept_priority +for the list of supported syslog priorities. +.It maxlen = number +On many systems, +.Xr 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, +.Nm sudo_logsrvd +creates log messages up to 960 bytes which corresponds to the +historic +.Bx +syslog implementation which used a 1024 byte buffer +to store the message, date, hostname, and program name. +.Pp +To prevent syslog messages from being truncated, +.Nm sudo_logsrvd +will split up sudo-style log messages that are larger than +.Em maxlen +bytes. +When a message is split, additional parts will include the string +.Dq Pq 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 +.Em maxlen . +.It server_facility = string +Syslog facility if syslog is being used for server warning messages. +See above for a list of supported facilities. +Defaults to +.Em daemon +.El +.Ss logfile +The +.Em logfile +section consists of settings related to logging to a plain file +(not syslog). +.Bl -tag -width 4n +.It path = string +The path to the file-based event log. +This path must be fully-qualified and start with a +.Sq / +character. +The default value is +.Pa @logpath@ . +.It time_format = string +The string used when formatting the date and time for file-based event logs. +Formatting is performed via the system's +.Xr strftime 3 +function so any escape sequences supported by that function will be expanded. +The default value is +.Dq "%h %e %T" +which produces dates like +.Dq Oct 3 07:15:24 +in the +.Ql C +locale. +.El +.Sh FILES +.Bl -tag -width 24n +.It Pa @sysconfdir@/sudo_logsrvd.conf +Sudo log server configuration file +.El +.Sh EXAMPLES +.Bd -literal +# +# 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 = @rundir@/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 @relay_dir@. +#relay_dir = @relay_dir@ + +# 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 = @iolog_dir@ + +# 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 = @logfac@ + +# 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 = @goodpri@ + +# Syslog priority to use for event log reject messages, when the command +# is not allowed by the security policy. +#reject_priority = @badpri@ + +# Syslog priority to use for event log alert messages reported by the +# client. +#alert_priority = @badpri@ + +# 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 = @logpath@ + +# 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 +.Ed +.Sh SEE ALSO +.Xr strftime 3 , +.Xr sudo.conf @mansectform@ , +.Xr sudoers @mansectform@ , +.Xr sudo @mansectsu@ , +.Xr sudo_logsrvd @mansectsu@ +.Sh AUTHORS +Many people have worked on +.Nm sudo +over the years; this version consists of code written primarily by: +.Bd -ragged -offset indent +.An Todd C. Miller +.Ed +.Pp +See the CONTRIBUTORS.md file in the +.Nm sudo +distribution (https://www.sudo.ws/about/contributors/) for an +exhaustive list of people who have contributed to +.Nm sudo . +.Sh BUGS +If you believe you have found a bug in +.Nm sudo , +you can submit a bug report at https://bugzilla.sudo.ws/ +.Sh 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. +.Sh DISCLAIMER +.Nm sudo +is provided +.Dq 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.md file distributed with +.Nm sudo +or https://www.sudo.ws/about/license/ for complete details. |