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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 12:52:13 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 12:52:13 +0000 |
commit | f8e5c55a036f0e2e2a958e30456270f3f9eba933 (patch) | |
tree | 4a06ff510774a7a3373e492df4e2984d7b0664b1 /doc/sudo_logsrvd.conf.man.in | |
parent | Initial commit. (diff) | |
download | sudo-f8e5c55a036f0e2e2a958e30456270f3f9eba933.tar.xz sudo-f8e5c55a036f0e2e2a958e30456270f3f9eba933.zip |
Adding upstream version 1.9.5p2.upstream/1.9.5p2upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'doc/sudo_logsrvd.conf.man.in')
-rw-r--r-- | doc/sudo_logsrvd.conf.man.in | 769 |
1 files changed, 769 insertions, 0 deletions
diff --git a/doc/sudo_logsrvd.conf.man.in b/doc/sudo_logsrvd.conf.man.in new file mode 100644 index 0000000..8c752e9 --- /dev/null +++ b/doc/sudo_logsrvd.conf.man.in @@ -0,0 +1,769 @@ +.\" Automatically generated from an mdoc input file. Do not edit. +.\" +.\" SPDX-License-Identifier: ISC +.\" +.\" Copyright (c) 2019-2020 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. +.\" +.TH "SUDO_LOGSRVD.CONF" "@mansectform@" "November 24, 2020" "Sudo @PACKAGE_VERSION@" "File Formats Manual" +.nh +.if n .ad l +.SH "NAME" +\fBsudo_logsrvd.conf\fR +\- configuration for sudo_logsrvd +.SH "DESCRIPTION" +The +\fBsudo_logsrvd.conf\fR +file is used to configure the +\fBsudo_logsrvd\fR +log server. +It uses an INI-style format made up of sections in square brackets and +\(lqkey = value\(rq +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 +(\(oq#\(cq) +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 +(\(oq\&;\(cq) +are also ignored. +.PP +Long lines can be continued with a backslash +(\(oq\e\(cq) +as the last character on the line. +Note that leading white space is removed from the beginning of lines +even when the continuation character is used. +.PP +The +\fIEXAMPLES\fR +section contains a copy of the default +\fBsudo_logsrvd.conf\fR +file. +.PP +The following configuration sections are recognized: +.PP +.RS 6n +.PD 0 +.TP 4n +\fB\(bu\fR +server +.TP 4n +\fB\(bu\fR +iolog +.TP 4n +\fB\(bu\fR +eventlog +.TP 4n +\fB\(bu\fR +syslog +.TP 4n +\fB\(bu\fR +logfile +.RE +.PD +.PP +Each section is described in detail below. +.SS "server" +The +\fIserver\fR +section configures the address and port the server will listen on. +The following keys are recognized: +.TP 10n +listen_address = host[:port][(tls)] +The host name or IP address, optional port to listen on and +an optional Transport Layer Security (TLS) flag in parentheses. +.sp +The host may be a host name, an IPv4 address, an IPv6 address +in square brackets or the wild card entry +\(oq*\(cq. +A host setting of +\(oq*\(cq +will cause +\fBsudo_logsrvd\fR +to listen on all configured network interfaces. +.sp +If the optional tls flag is present, +\fBsudo_logsrvd\fR +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 generating TLS keys and certificates. +.sp +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. +.sp +The default value is: +.nf +.RS 16n +listen_address = *:30343 +listen_address = *:30344(tls) +.RE +.fi +.RS 10n +which will listen on all configured network interfaces for both +plaintext and TLS connections. +Multiple +\fIlisten_address\fR +lines may be specified to listen on more than one port or interface. +.RE +.TP 10n +pid_file = path +The path to the file containing the process ID of the running +\fBsudo_logsrvd\fR. +If set to an empty value, or if +\fBsudo_logsrvd\fR +is run with the +\fB\-n\fR +option, no +\fIpid_file\fR +will be created. +If +\fIpid_file\fR +refers to a symbolic link, it will be ignored. +The default value is +\fI@rundir@/sudo_logsrvd.pid\fR. +.TP 10n +tcp_keepalive = boolean +If true, +\fBsudo_logsrvd\fR +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, the connection will be closed. +.TP 10n +timeout = number +The amount of time, in seconds, +\fBsudo_logsrvd\fR +will wait for the client to respond. +A value of 0 will disable the timeout. +The default value is 30. +.TP 10n +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 +\fI/etc/ssl/sudo/cacert.pem\fR +if it exists, otherwise the system's default certificate authority +database is used. +.TP 10n +tls_cert = path +The path to the server's certificate file, in PEM format. +The default value is +\fI/etc/ssl/sudo/certs/logsrvd_cert.pem\fR. +.TP 10n +tls_checkpeer = bool +If true, client certificates will be validated by the server; +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 +\fItls_cacert\fR +setting must be set to a CA bundle that contains the CA certificate +used to generate the client certificate. +The default value is +\fRfalse\fR. +.TP 10n +tls_ciphers_v12 = string +A list of ciphers to use for connections secured by TLS version 1.2 only, +separated by a colon +\(oq:\&\(cq. +See the +\fICIPHER LIST FORMAT\fR +section in +openssl-ciphers(1) +for full details. +The default value is +\fRHIGH:!aNULL\fR +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. +.TP 10n +tls_ciphers_v13 = string +A list of ciphers to use for connections secured by TLS version 1.3 only, +separated by a colon +\(oq:\&\(cq. +Supported cipher suites depend on the version of OpenSSL used, +but should include the following: +.sp +.RS 16n +.PD 0 +.TP 10n +TLS_AES_128_GCM_SHA256 +.TP 10n +TLS_AES_256_GCM_SHA384 +.TP 10n +TLS_CHACHA20_POLY1305_SHA256 +.TP 10n +TLS_AES_128_CCM_SHA256 +.TP 10n +TLS_AES_128_CCM_8_SHA256 +.RE +.RS 10n +.sp +The default cipher suite is TLS_AES_256_GCM_SHA384. +.RE +.PD +.TP 10n +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: +.nf +.sp +.RS 10n +openssl dhparam -out /etc/sudo_logsrvd_dhparams.pem 2048 +.RE +.fi +.RS 10n +.sp +By default, +\fBsudo_logsrvd\fR +will use the OpenSSL defaults for Diffie-Hellman key generation. +.RE +.TP 10n +tls_key = path +The path to the server's private key file, in PEM format. +The default value is +\fI/etc/ssl/sudo/private/logsrvd_key.pem\fR. +.TP 10n +tls_verify = bool +If true, the server certificate will be verified at startup and +clients will authenticate the server by verifying its certificate +and identity. +If false, no verification is performed of the server certificate +by the server or the client. +When using self-signed certificates without a certificate authority, +this setting should be set to false. +The default value is true. +.SS "iolog" +The +\fIiolog\fR +section configures I/O log parameters. +These settings are identical to the I/O configuration in +sudoers(@mansectform@). +The following keys are recognized: +.TP 10n +iolog_compress = boolean +If set, I/O logs will be compressed using +\fBzlib\fR. +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 +\fRfalse\fR. +.TP 10n +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 +\fI@iolog_dir@\fR. +.sp +The following percent +(\(oq%\(cq) +escape sequences are supported: +.PP +.RS 10n +.PD 0 +.TP 6n +\fR%{seq}\fR +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., +\fI01/00/A5\fR +.PD +.TP 6n +\fR%{user}\fR +expanded to the invoking user's login name +.TP 6n +\fR%{group}\fR +expanded to the name of the invoking user's real group-ID +.TP 6n +\fR%{runas_user}\fR +expanded to the login name of the user the command will +be run as (e.g., root) +.TP 6n +\fR%{runas_group}\fR +expanded to the group name of the user the command will +be run as (e.g., wheel) +.TP 6n +\fR%{hostname}\fR +expanded to the local host name without the domain name +.TP 6n +\fR%{command}\fR +expanded to the base name of the command being run +.PP +In addition, any escape sequences supported by the system's +strftime(3) +function will be expanded. +.sp +To include a literal +\(oq%\(cq +character, the string +\(oq%%\(cq +should be used. +.RE +.TP 10n +iolog_file = path +The path name, relative to +\fIiolog_dir\fR, +in which to store I/O logs. +Note that +\fIiolog_file\fR +may contain directory components. +The default value is +\fR%{seq}\fR. +.sp +See the +\fIiolog_dir\fR +setting above for a list of supported percent +(\(oq%\(cq) +escape sequences. +.sp +In addition to the escape sequences, path names that end in six or +more +\fRX\fRs +will have the +\fRX\fRs +replaced with a unique combination of digits and letters, similar to the +mktemp(3) +function. +.sp +If the path created by concatenating +\fIiolog_dir\fR +and +\fIiolog_file\fR +already exists, the existing I/O log file will be truncated and +overwritten unless +\fIiolog_file\fR +ends in six or +more +\fRX\fRs. +.TP 10n +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. +The default value is +\fRtrue\fR. +.TP 10n +iolog_group = name +The group name to look up when setting the group-ID on new I/O log +files and directories. +If +\fIiolog_group\fR +is not set, +the primary group-ID of the user specified by +\fIiolog_user is used.\fR +If neither +\fIiolog_group\fR +nor +\fIiolog_user\fR +are set, I/O log files and directories are created with group-ID 0. +.TP 10n +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 +\fIiolog_mode\fR. +The default value is +\fR0600\fR. +.TP 10n +iolog_user = name +The user name to look up when setting the owner of new +I/O log files and directories. +If +\fIiolog_group\fR +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. +.TP 10n +maxseq = number +The maximum sequence number that will be substituted for the +\(lq\fR%{seq}\fR\(rq +escape in the I/O log file (see the +\fIiolog_dir\fR +description above for more information). +While the value substituted for +\(lq\fR%{seq}\fR\(rq +is in base 36, +\fImaxseq\fR +itself should be expressed in decimal. +Values larger than 2176782336 (which corresponds to the +base 36 sequence number +\(lqZZZZZZ\(rq) +will be silently truncated to 2176782336. +The default value is 2176782336. +.SS "eventlog" +The +\fIeventlog\fR +section configures how (and if) security policy events are logged. +.TP 6n +log_type = string +Where to log accept, reject and alert events reported by the policy. +Supported values are +\fIsyslog\fR, +\fIlogfile\fR, +and +\fInone\fR. +The default value is +\fIsyslog\fR. +.TP 6n +log_format = string +The event log format. +Supported log formats are +\(lqsudo\(rq +for traditional sudo-style logs and +\(lqjson\(rq +for JSON-format logs. +The JSON log entries contain the full contents of the accept, reject +and alert messages. +The default value is +\fIsudo\fR. +.SS "syslog" +The +\fIsyslog\fR +section configures how events are logged via +syslog(3). +.TP 6n +facility = string +Syslog facility if syslog is being used for logging. +Defaults to +\fR@logfac@\fR. +.sp +The following syslog facilities are supported: +\fBauthpriv\fR +(if your +OS supports it), +\fBauth\fR, +\fBdaemon\fR, +\fBuser\fR, +\fBlocal0\fR, +\fBlocal1\fR, +\fBlocal2\fR, +\fBlocal3\fR, +\fBlocal4\fR, +\fBlocal5\fR, +\fBlocal6\fR, +and +\fBlocal7\fR. +.TP 6n +accept_priority = string +Syslog priority to use when the user is allowed to run a command and +authentication is successful. +Defaults to +\fR@goodpri@\fR. +.sp +The following syslog priorities are supported: +\fBalert\fR, +\fBcrit\fR, +\fBdebug\fR, +\fBemerg\fR, +\fBerr\fR, +\fBinfo\fR, +\fBnotice\fR, +\fBwarning\fR, +and +\fBnone\fR. +Setting it to a value of +\fBnone\fR +will disable logging of successful commands. +.TP 6n +reject_priority = string +Syslog priority to use when the user is not allowed to run a command or +when authentication is unsuccessful. +Defaults to +\fR@badpri@\fR. +.sp +See +\fIaccept_priority\fR +for the list of supported syslog priorities. +.TP 6n +alert_priority = string +Syslog priority to use for event log alert messages received from the client. +Defaults to +\fR@badpri@\fR. +.sp +See +\fIaccept_priority\fR +for the list of supported syslog priorities. +.TP 6n +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, +\fBsudo_logsrvd\fR +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. +.sp +To prevent syslog messages from being truncated, +\fBsudo_logsrvd\fR +will split up sudo-style log messages that are larger than +\fImaxlen\fR +bytes. +When a message is split, additional parts will include the string +\(lq(command continued)\(rq +after the user name and before the continued command line arguments. +JSON-format log entries are never split and are not affected by +\fImaxlen\fR. +.SS "logfile" +The +\fIlogfile\fR +section consists of settings related to logging to a plain file +(not syslog). +.TP 6n +path = string +The path to the file-based event log. +This path must be fully-qualified and start with a +\(oq/\(cq +character. +The default value is +\fI@logpath@\fR. +.TP 6n +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 +\(lq\fR%h %e %T\fR\(rq +which produces dates like +\(lqOct 3 07:15:24\(rq +in the C locale. +.SH "FILES" +.TP 26n +\fI@sysconfdir@/sudo_logsrvd.conf\fR +Sudo log server configuration file +.SH "EXAMPLES" +.nf +.RS 0n +# +# sudo logsrv 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 + +# If set, enable the SO_KEEPALIVE socket option on the connected socket. +#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 set, server certificate will be verified at server startup and +# also connecting clients will perform server authentication by +# verifying the server's certificate and identity. +#tls_verify = true + +# Whether to verify client certificates for TLS connections. +# By default client certs are not checked. +#tls_checkpeer = false + +# Path to the certificate authority bundle file in PEM format. +# Required if 'tls_verify' or 'tls_checkpeer' is set. +#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). +# NOTE that 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 + +[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. +# Note that iolog_file may 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 + +# 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 + +[eventlog] +# Where to log accept, reject and alert events. +# Accepted values are syslog, logfile, or none. +# Defaults to syslog +#log_type = syslog + +# 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 + +[logfile] +# The path to the file-based event log. +# This path must be fully-qualified and start with a '/' character. +#path = /var/log/sudo + +# 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 +.RE +.fi +.SH "SEE ALSO" +strftime(3), +sudo.conf(@mansectform@), +sudoers(@mansectform@), +sudo(8), +sudo_logsrvd(8) +.SH "HISTORY" +See the HISTORY file in the +\fBsudo\fR +distribution (https://www.sudo.ws/history.html) for a brief +history of sudo. +.SH "AUTHORS" +Many people have worked on +\fBsudo\fR +over the years; this version consists of code written primarily by: +.sp +.RS 6n +Todd C. Miller +.RE +.PP +See the CONTRIBUTORS file in the +\fBsudo\fR +distribution (https://www.sudo.ws/contributors.html) for an +exhaustive list of people who have contributed to +\fBsudo\fR. +.SH "BUGS" +If you feel you have found a bug in +\fBsudo\fR, +please 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" +\fBsudo\fR +is provided +\(lqAS IS\(rq +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 distributed with +\fBsudo\fR +or https://www.sudo.ws/license.html for complete details. |