POSTALIAS(1) POSTALIAS(1) NAME postalias - Postfix alias database maintenance SYNOPSIS postalias [-c config_dir] [-v] [file_type:]input_file DESCRIPTION The postalias command creates a new Postfix alias database, or rebuilds an existing one. The input and out- put file formats are expected to be compatible with Send- mail version 8, and are expected to be suitable for the use as NIS alias maps. 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 spec- tator programs. Options: -c config_dir Read the main.cf configuration file in the named directory. -v Enable verbose logging for debugging purposes. Mul- tiple -v options make the software increasingly verbose. Arguments: file_type The type of database to be produced. btree The output is a btree file, named input_file.db. This is available only on systems with support for db databases. dbm The output consists of two files, named input_file.pag and input_file.dir. This is available only on systems with support for dbm databases. hash The output is a hashed file, named input_file.db. This is available only on systems with support for db databases. When no file_type is specified, the software uses the database type specified via the database_type configuration parameter. The default value for this parameter depends on the host environment. input_file The name of the alias database source file. 1 POSTALIAS(1) POSTALIAS(1) DIAGNOSTICS Problems are logged to the standard error stream. No out- put means no problems were detected. Duplicate entries are skipped and are flagged with a warning. ENVIRONMENT MAIL_CONFIG Mail configuration database. MAIL_VERBOSE Enable verbose logging for debugging purposes. CONFIGURATION PARAMETERS The following main.cf parameters are especially relevant to this program. See the Postfix main.cf file for syntax details and for default values. database_type Default alias database type. On many UNIX systems, the default type is either dbm or hash. STANDARDS RFC 822 (ARPA Internet Text Messages) SEE ALSO aliases(5) format of alias database input file. sendmail(1) mail posting and compatibility interface. LICENSE The Secure Mailer license must be distributed with this software. AUTHOR(S) Wietse Venema IBM T.J. Watson Research P.O. Box 704 Yorktown Heights, NY 10598, USA 2