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[command]#local_max_rate# — Specifies the maximum rate data is transferred for local users logged into the server in bytes per second.
[command]#max_clients# — Specifies the maximum number of simultaneous clients allowed to connect to the server when it is running in standalone mode. Any additional client connections would result in an error message.
The default value is [command]#0#, which does not limit connections.
[command]#max_per_ip# — Specifies the maximum of clients allowed to connected from the same source `IP` address.
[command]#pasv_address# — Specifies the `IP` address for the public facing `IP` address of the server for servers behind Network Address Translation (NAT) firewalls. This enables [command]#vsftpd# to hand out the correct return address for passive mode connections.
[command]#pasv_enable# — When enabled, passive mode connects are allowed.
[command]#pasv_max_port# — Specifies the highest possible port sent to the `FTP` clients for passive mode connections. This setting is used to limit the port range so that firewall rules are easier to create.
The default value is [command]#0#, which does not limit the highest passive port range. The value must not exceed [command]#65535#.
[command]#pasv_min_port# — Specifies the lowest possible port sent to the `FTP` clients for passive mode connections. This setting is used to limit the port range so that firewall rules are easier to create.
The default value is [command]#0#, which does not limit the lowest passive port range. The value must not be lower [command]#1024#.
[command]#pasv_promiscuous# — When enabled, data connections are not checked to make sure they are originating from the same `IP` address. This setting is only useful for certain types of tunneling.
Avoid enabling the pasv_promiscuous option
Do not enable this option unless absolutely necessary as it disables an important security feature which verifies that passive mode connections originate from the same `IP` address as the control connection that initiates the data transfer.
[command]#port_enable# — When enabled, active mode connects are allowed.
Additional Resources
indexterm:[vsftpd,additional resources] For more information about [command]#vsftpd#, refer to the following resources.
Installed Documentation
indexterm:[vsftpd,additional resources,installed documentation]
The `/usr/share/doc/vsftpd/` directory — This directory contains a `README` with basic information about the software. The `TUNING` file contains basic performance tuning tips and the `SECURITY/` directory contains information about the security model employed by [command]#vsftpd#.
[command]#vsftpd# related man pages — There are a number of man pages for the daemon and configuration files. The following lists some of the more important man pages.