PHP Manual: Performs a tcpwrap check

Description

bool tcpwrap_check(
    string $daemon,
    string $address,
    string $user = ?,
    bool $nodns = false
)

This function consults the /etc/hosts.allow and /etc/hosts.deny files to check if access to service daemon should be granted or denied for a client.

Parameters

daemon: The service name.
address: The client remote address. Can be either an IP address or a domain name.
user: An optional user name.
nodns: If address looks like domain name then DNS is used to resolve it to IP address; set nodns to true to avoid this.

Return Values

This function returns true if access should be granted, false otherwise.

Examples

Example #1 Deny all connections from localhost

If your /etc/hosts.deny file contains:

php: 127.0.0.1

And your code looks like:

<?php
if (!tcpwrap_check('php', $_SERVER['REMOTE_ADDR'])) {
  die('You are not welcome here');
}
?>

tcpwrap_check

Description

Parameters

Return Values

Examples

See Also