tcpwrap_check(3) [php man page]

TCPWRAP_CHECK(3)							 1							  TCPWRAP_CHECK(3)

tcpwrap_check - Performs a tcpwrap check

SYNOPSIS

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

DESCRIPTION

	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

	      o $daemon
		- The service name.

	      o $address
		- The client remote address. Can be either an IP address or a domain name.

	      o $user
		- An optional user name.

	      o $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');
	      }
	      ?>

SEE ALSO

	For more details please consult hosts_access(3) man page.

PHP Documentation Group 													  TCPWRAP_CHECK(3)

ftphosts(4)						     Kernel Interfaces Manual						       ftphosts(4)

NAME

       ftphosts - ftpd individual user host access file

SYNOPSIS

DESCRIPTION

       The file is used to allow or deny access to certain accounts from various hosts.

   Access Capabilities
       The formats to allow and deny access are described in this section.

       addrglob [ addrglob... ]

	      Only allow host(s) matching addrglob to log in as username.  addrglob is a globbed domain name or a globbed numeric address.

	addrglob [ addrglob ... ]

	      Always deny host(s) matching addrglob to log in as username.  addrglob is a globbed domain name or a globbed numeric address.

       A username of or specifies the anonymous user.

       The addrglob can also be specified as address/cidr or address:netmask.  For example:

	      or

   Specifying Both allow and deny Rules
       To allow a user to login from anywhere except the listed hosts, both allow and deny rules are required.

       The following example denies the user from logging in from the host but allows login from all other hosts:

EXAMPLES

       Allow the user, to login from the host named and from all hosts with numeric addresses starting with

       Deny (do not allow) the user, to login from the host named and from all hosts with numeric addresses starting with

       Allow the user, to login from the host named

FILES

AUTHOR

       was developed by the Washington University, St. Louis, Missouri.

SEE ALSO

       ftpd(1M), ftpaccess(4), ftpconversions(4), ftpshut(1).

																       ftphosts(4)