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version 3.15

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#NAME

Net::Config - Local configuration data for libnet

#SYNOPSIS

use Net::Config qw(%NetConfig);

#DESCRIPTION

Net::Config holds configuration data for the modules in the libnet distribution. During installation you will be asked for these values.

The configuration data is held globally in a file in the perl installation tree, but a user may override any of these values by providing their own. This can be done by having a.libnetrc file in their home directory. This file should return a reference to a HASH containing the keys described below. For example

# .libnetrc{    nntp_hosts => [ "my_preferred_host" ],    ph_hosts   => [ "my_ph_server" ],}__END__

#Class Methods

Net::Config defines the following methods. They are methods as they are invoked as class methods. This is becauseNet::Config inherits fromNet::LocalCfg so you can override these methods if you want.

#requires_firewall($host)

Attempts to determine if a given host is outside your firewall. Possible return values are.

-1  Cannot lookup hostname 0  Host is inside firewall (or there is no ftp_firewall entry) 1  Host is outside the firewall

This is done by using hostname lookup and thelocal_netmask entry in the configuration data.

#NetConfig Values

#nntp_hosts

#snpp_hosts

#pop3_hosts

#smtp_hosts

#ph_hosts

#daytime_hosts

#time_hosts

Each is a reference to an array of hostnames (in order of preference), which should be used for the given protocol

#inet_domain

Your internet domain name

#ftp_firewall

If you have an FTP proxy firewall (NOT an HTTP or SOCKS firewall) then this value should be set to the firewall hostname. If your firewall does not listen to port 21, then this value should be set to"hostname:port" (eg"hostname:99")

#ftp_firewall_type

There are many different ftp firewall products available. But unfortunately there is no standard for how to traverse a firewall. The list below shows the sequence of commands that Net::FTP will use

user        Username for remote hostpass        Password for remote hostfwuser      Username for firewallfwpass      Password for firewallremote.host The hostname of the remote ftp server

#0

There is no firewall

#1

USER user@remote.hostPASS pass

#2

USER fwuserPASS fwpassUSER user@remote.hostPASS pass

#3

USER fwuserPASS fwpassSITE remote.siteUSER userPASS pass

#4

USER fwuserPASS fwpassOPEN remote.siteUSER userPASS pass

#5

USER user@fwuser@remote.sitePASS pass@fwpass

#6

USER fwuser@remote.sitePASS fwpassUSER userPASS pass

#7

USER user@remote.hostPASS passAUTH fwuserRESP fwpass

#ftp_ext_passive

#ftp_int_passive

FTP servers can work in passive or active mode. Active mode is when you want to transfer data you have to tell the server the address and port to connect to. Passive mode is when the server provide the address and port and you establish the connection.

With some firewalls active mode does not work as the server cannot connect to your machine (because you are behind a firewall) and the firewall does not re-write the command. In this case you should setftp_ext_passive to atrue value.

Some servers are configured to only work in passive mode. If you have one of these you can forceNet::FTP to always transfer in passive mode; when not going via a firewall, by settingftp_int_passive to atrue value.

#local_netmask

A reference to a list of netmask strings in the form"134.99.4.0/24". These are used by therequires_firewall function to determine if a given host is inside or outside your firewall.

The following entries are used during installation & testing on the libnet package

#test_hosts: If true thenmake test may attempt to connect to hosts given in the configuration.
#test_exists: If true thenConfigure will check each hostname given that it exists

#EXPORTS

The following symbols are, or can be, exported by this module:

#Default Exports: %NetConfig.
#Optional Exports: None.
#Export Tags: None.

#KNOWN BUGS

None.

#AUTHOR

Graham Barr <gbarr@pobox.com>.

Steve Hay <shay@cpan.org> is now maintaining libnet as of version 1.22_02.

#COPYRIGHT

#LICENCE

This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself, i.e. under the terms of either the GNU General Public License or the Artistic License, as specified in theLICENCE file.

#VERSION

Version 3.15

#DATE

20 March 2023

#HISTORY

See theChanges file.

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