firebird - Firebird server

       Copyright (C) 2009, 2010, Damyan Ivanov.

       This manpage was written by Damyan Ivanov for the Debian project but may be used by others. Permission is
       granted to use this document, with or without modifications, provided that this notice is retained. If we
       meet some day, and you think this stuff is worth it, you can buy me a beer in return.

Firebird 4.0                                       2025-03-23                                        FIREBIRD(8)

firebird is the main process of the Firebird RDBMS server. It has three modes of operation:

       single-process
           This  is  the  same  as  the  superserver  flavour of version 2.5 and before. It consists of a single
           listener process that handles all connections. It is single-threaded  and  therefore  is  capable  of
           using  only one CPU. All connections use shared cache to database pages. A crash in the code handling
           a connection brings down the whole server.

       standalone classic
           This is the same as the superclassic flavour of the 2.5 version. A single listener process  spawns  a
           new  thread  for each connection. It is capable of utilizing multiple CPUs. The database cache is not
           shared between connections.  The inter-process communication  is  pretty  fast  because  all  threads
           reside in the same process. A crash in the code handling a connection brings down the whole server.

       Internet "super-server" handler
           This  is  the  same as the classic flavour of version 2.5 and before. Each connection is handled by a
           separate fireird process, spawned by the Internet super-server (e.g. inetd or xinetd). It is  capable
           of  utilizing multiple CPUs.  The database cache is not shared and the inter-process communication is
           slower than the other operational modes. In this mode, a crash caused by one connection doesn't bring
           down the whole server, but only the crashed instance.

       firebird - Firebird server

-d  Turn debugging on

       -s  Use standaloneclassic mode of operation.

       -i  Use singleprocess mode of operation.

       -pport
           specify listening port number or protocol name

       -h-?  Print short usage information

       -edir
           Specify the path to the Firebird root directory.

       -eldir
           Specify the path to the lock directory.

       -emdir
           Specify the path to the directory containing the messages file.

       -z  Print version information and exit

           firebird [<option>...]