What's the best way to determine whether Firebird server is running?

If you want to do it from an application, a simple try to connect should suffice. Otherwise you have various options:

a) check if firebird server is in the list of running programs (use task manager on Windows, or 'ps ax' command on Linux). Please note that Classic won't be running until there is a connection established.

b) check whether the port 3050 is open on the machine. First, you can check with netstat command, and if it is open, you can test whether it accepts connections by telnet-ing to the port. Just type:

telnet [hostname|IPaddress] 3050

telnet localhost 3050

If you use Linux, you can also check the open port with 'lsof' command. It outputs a lot, so you might want to 'grep' for 3050 or gds_db strings:

# lsof | grep gds_db
# lsof | grep 3050

c) if all of this fails, perhaps you should check whether the remote server is reachable at all. You can use 'ping' command:

ping [hostname|IPaddress]


Please note that ping can still give you 'host unreachable' message even if host is up. This is because the firewall software can drop the ICMP (ping) packets (it's done to prevent some viruses from spreading, or network scans).

Do you find this FAQ incorrect or incomplete? Please e-mail us what needs to be changed. To ensure quality, each change is checked by our editors (and often tested on live Firebird databases), before it enters the main FAQ database. If you desire so, the changes will be credited to your name. To learn more, visit our add content page.

All contents are copyright © 2007-2023 FirebirdFAQ.org unless otherwise stated in the text.

Links   Firebird   News   FlameRobin   Powered by FB: Home Inventory   Euchre  
Add content   About  

 Installation and setup
 Backup and restore
 Connectivity and API
 Errors and error codes