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diff --git a/man/man1/postalias.1 b/man/man1/postalias.1 new file mode 100644 index 0000000..4c7f02b --- /dev/null +++ b/man/man1/postalias.1 @@ -0,0 +1,262 @@ +.TH POSTALIAS 1 +.ad +.fi +.SH NAME +postalias +\- +Postfix alias database maintenance +.SH "SYNOPSIS" +.na +.nf +.fi +\fBpostalias\fR [\fB\-Nfinoprsuvw\fR] [\fB\-c \fIconfig_dir\fR] +[\fB\-d \fIkey\fR] [\fB\-q \fIkey\fR] + [\fIfile_type\fR:]\fIfile_name\fR ... +.SH DESCRIPTION +.ad +.fi +The \fBpostalias\fR(1) command creates or queries one or more Postfix +alias databases, or updates an existing one. The input and output +file formats are expected to be compatible with Sendmail version 8, +and are expected to be suitable for use as NIS alias maps. + +If the result files do not exist they will be created with the +same group and other read permissions as their source file. + +While a database update is in progress, signal delivery is +postponed, and an exclusive, advisory, lock is placed on the +entire database, in order to avoid surprises in spectator +processes. + +The format of Postfix alias input files is described in +\fBaliases\fR(5). + +By default the lookup key is mapped to lowercase to make +the lookups case insensitive; as of Postfix 2.3 this case +folding happens only with tables whose lookup keys are +fixed\-case strings such as btree:, dbm: or hash:. With +earlier versions, the lookup key is folded even with tables +where a lookup field can match both upper and lower case +text, such as regexp: and pcre:. This resulted in loss of +information with $\fInumber\fR substitutions. + +Options: +.IP "\fB\-c \fIconfig_dir\fR" +Read the \fBmain.cf\fR configuration file in the named directory +instead of the default configuration directory. +.IP "\fB\-d \fIkey\fR" +Search the specified maps for \fIkey\fR and remove one entry per map. +The exit status is zero when the requested information was found. + +If a key value of \fB\-\fR is specified, the program reads key +values from the standard input stream. The exit status is zero +when at least one of the requested keys was found. +.IP \fB\-f\fR +Do not fold the lookup key to lower case while creating or querying +a table. + +With Postfix version 2.3 and later, this option has no +effect for regular expression tables. There, case folding +is controlled by appending a flag to a pattern. +.IP \fB\-i\fR +Incremental mode. Read entries from standard input and do not +truncate an existing database. By default, \fBpostalias\fR(1) creates +a new database from the entries in \fIfile_name\fR. +.IP \fB\-N\fR +Include the terminating null character that terminates lookup keys +and values. By default, \fBpostalias\fR(1) does whatever +is the default for +the host operating system. +.IP \fB\-n\fR +Don't include the terminating null character that terminates lookup +keys and values. By default, \fBpostalias\fR(1) does whatever +is the default for +the host operating system. +.IP \fB\-o\fR +Do not release root privileges when processing a non\-root +input file. By default, \fBpostalias\fR(1) drops root privileges +and runs as the source file owner instead. +.IP \fB\-p\fR +Do not inherit the file access permissions from the input file +when creating a new file. Instead, create a new file with default +access permissions (mode 0644). +.IP "\fB\-q \fIkey\fR" +Search the specified maps for \fIkey\fR and write the first value +found to the standard output stream. The exit status is zero +when the requested information was found. + +Note: this performs a single query with the key as specified, +and does not make iterative queries with substrings of the +key as described in the aliases(5) manual page. + +If a key value of \fB\-\fR is specified, the program reads key +values from the standard input stream and writes one line of +\fIkey: value\fR output for each key that was found. The exit +status is zero when at least one of the requested keys was found. +.IP \fB\-r\fR +When updating a table, do not complain about attempts to update +existing entries, and make those updates anyway. +.IP \fB\-s\fR +Retrieve all database elements, and write one line of +\fIkey: value\fR output for each element. The elements are +printed in database order, which is not necessarily the same +as the original input order. +This feature is available in Postfix version 2.2 and later, +and is not available for all database types. +.IP \fB\-u\fR +Disable UTF\-8 support. UTF\-8 support is enabled by default +when "smtputf8_enable = yes". It requires that keys and +values are valid UTF\-8 strings. +.IP \fB\-v\fR +Enable verbose logging for debugging purposes. Multiple \fB\-v\fR +options make the software increasingly verbose. +.IP \fB\-w\fR +When updating a table, do not complain about attempts to update +existing entries, and ignore those attempts. +.PP +Arguments: +.IP \fIfile_type\fR +The database type. To find out what types are supported, use +the "\fBpostconf \-m\fR" command. + +The \fBpostalias\fR(1) command can query any supported file type, +but it can create only the following file types: +.RS +.IP \fBbtree\fR +The output is a btree file, named \fIfile_name\fB.db\fR. +This is available on systems with support for \fBdb\fR databases. +.IP \fBcdb\fR +The output is one file named \fIfile_name\fB.cdb\fR. +This is available on systems with support for \fBcdb\fR databases. +.IP \fBdbm\fR +The output consists of two files, named \fIfile_name\fB.pag\fR and +\fIfile_name\fB.dir\fR. +This is available on systems with support for \fBdbm\fR databases. +.IP \fBfail\fR +A table that reliably fails all requests. The lookup table +name is used for logging only. This table exists to simplify +Postfix error tests. +.IP \fBhash\fR +The output is a hashed file, named \fIfile_name\fB.db\fR. +This is available on systems with support for \fBdb\fR databases. +.IP \fBlmdb\fR +The output is a btree\-based file, named \fIfile_name\fB.lmdb\fR. +\fBlmdb\fR supports concurrent writes and reads from different +processes, unlike other supported file\-based tables. +This is available on systems with support for \fBlmdb\fR databases. +.IP \fBsdbm\fR +The output consists of two files, named \fIfile_name\fB.pag\fR and +\fIfile_name\fB.dir\fR. +This is available on systems with support for \fBsdbm\fR databases. +.PP +When no \fIfile_type\fR is specified, the software uses the database +type specified via the \fBdefault_database_type\fR configuration +parameter. +The default value for this parameter depends on the host environment. +.RE +.IP \fIfile_name\fR +The name of the alias database source file when creating a database. +.SH DIAGNOSTICS +.ad +.fi +Problems are logged to the standard error stream and to +\fBsyslogd\fR(8) or \fBpostlogd\fR(8). No output means that +no problems were detected. Duplicate entries are skipped and are +flagged with a warning. + +\fBpostalias\fR(1) terminates with zero exit status in case of success +(including successful "\fBpostalias \-q\fR" lookup) and terminates +with non\-zero exit status in case of failure. +.SH "ENVIRONMENT" +.na +.nf +.ad +.fi +.IP \fBMAIL_CONFIG\fR +Directory with Postfix configuration files. +.IP \fBMAIL_VERBOSE\fR +Enable verbose logging for debugging purposes. +.SH "CONFIGURATION PARAMETERS" +.na +.nf +.ad +.fi +The following \fBmain.cf\fR parameters are especially relevant to +this program. + +The text below provides only a parameter summary. See +\fBpostconf\fR(5) for more details including examples. +.IP "\fBalias_database (see 'postconf -d' output)\fR" +The alias databases for \fBlocal\fR(8) delivery that are updated with +"\fBnewaliases\fR" or with "\fBsendmail \-bi\fR". +.IP "\fBconfig_directory (see 'postconf -d' output)\fR" +The default location of the Postfix main.cf and master.cf +configuration files. +.IP "\fBberkeley_db_create_buffer_size (16777216)\fR" +The per\-table I/O buffer size for programs that create Berkeley DB +hash or btree tables. +.IP "\fBberkeley_db_read_buffer_size (131072)\fR" +The per\-table I/O buffer size for programs that read Berkeley DB +hash or btree tables. +.IP "\fBdefault_database_type (see 'postconf -d' output)\fR" +The default database type for use in \fBnewaliases\fR(1), \fBpostalias\fR(1) +and \fBpostmap\fR(1) commands. +.IP "\fBimport_environment (see 'postconf -d' output)\fR" +The list of environment variables that a privileged Postfix +process will import from a non\-Postfix parent process, or name=value +environment overrides. +.IP "\fBsmtputf8_enable (yes)\fR" +Enable preliminary SMTPUTF8 support for the protocols described +in RFC 6531, RFC 6532, and RFC 6533. +.IP "\fBsyslog_facility (mail)\fR" +The syslog facility of Postfix logging. +.IP "\fBsyslog_name (see 'postconf -d' output)\fR" +A prefix that is prepended to the process name in syslog +records, so that, for example, "smtpd" becomes "prefix/smtpd". +.PP +Available in Postfix 2.11 and later: +.IP "\fBlmdb_map_size (16777216)\fR" +The initial OpenLDAP LMDB database size limit in bytes. +.SH "STANDARDS" +.na +.nf +RFC 822 (ARPA Internet Text Messages) +.SH "SEE ALSO" +.na +.nf +aliases(5), format of alias database input file. +local(8), Postfix local delivery agent. +postconf(1), supported database types +postconf(5), configuration parameters +postmap(1), create/update/query lookup tables +newaliases(1), Sendmail compatibility interface. +postlogd(8), Postfix logging +syslogd(8), system logging +.SH "README FILES" +.na +.nf +.ad +.fi +Use "\fBpostconf readme_directory\fR" or +"\fBpostconf html_directory\fR" to locate this information. +.na +.nf +DATABASE_README, Postfix lookup table overview +.SH "LICENSE" +.na +.nf +.ad +.fi +The Secure Mailer license must be distributed with this software. +.SH "AUTHOR(S)" +.na +.nf +Wietse Venema +IBM T.J. Watson Research +P.O. Box 704 +Yorktown Heights, NY 10598, USA + +Wietse Venema +Google, Inc. +111 8th Avenue +New York, NY 10011, USA |