tcpwrap_check
(PECL tcpwrap:0.1-1.0)
tcpwrap_check — Performs a tcpwrap check
说明
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.
参数
- 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.
返回值
This function returns TRUE if access should be granted, FALSE otherwise.
范例
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');
}
?>
参见
For more details please consult hosts_access(3) man page.
