ntlm_sspi_auth.exe(8)ntlm_sspi_auth.exe(8)NAME
ntlm_sspi_auth.exe - Native Windows NTLM/NTLMv2 authenticator for Squid
with automatic support for NTLM NEGOTIATE packets.
Version 1.22
SYNOPSIS
ntlm_sspi_auth.exe [-dhv] [-A Group Name ] [-D Group Name ]
DESCRIPTION
ntlm_sspi_auth.exe is an installed binary built on Windows systems. It
provides native access to the Security Service Provider Interface of
Windows for authenticating with NTLM / NTLMv2. It has automatic sup‐
port for NTLM NEGOTIATE packets.
OPTIONS-A Specify a Windows Local Group name allowed to authenticate.
-d Write debug info to stderr.
-D Specify a Windows Local Group name which is to be denied
authentication.
-h Display the binary help and command line syntax info using
stderr.
-v Enables verbose NTLM packet debugging.
CONFIGURATION
Allowing Users
Users that are allowed to access the web proxy must have the Windows NT
User Rights "logon from the network".
Optionally the authenticator can verify the NT LOCAL group membership
of the user against the User Group specified in the Authenticator's
command line.
This can be accomplished creating a local user group on the NT machine,
grant the privilege, and adding users to it, it works only with MACHINE
Local Groups, not Domain Local Groups.
Better group checking is available with external ACL, see
ext_ad_group_acl.exe documentation.
squid.conf typical minimal required changes:
auth_param ntlm program c:/squid/libexec/ntlm_sspi_auth.exe
auth_param ntlm children 5
acl password proxy_auth REQUIRED
http_access allow password http_access deny all
Refer to Squid documentation for more details.
Internet Explorer has some problems with ftp:// URLs when handling
internal Squid FTP icons. The following squid.conf ACL works around
this when placed before the authentication ACL:
acl internal_icons urlpath_regex -i /squid-internal-
static/icons/
http_access allow our_networks internal_icons
AUTHOR
This program was written by Guido Serassio <guido.serassio@acmeconsult‐
ing.it>
Based on prior work in by Francesco Chemolli <kinkie@squid-cache.org>
Robert Collins <lifeless@squid-cache.org>
This manual was written by Guido Serassio <guido.serassio@acmeconsult‐
ing.it> Amos Jeffries <amosjeffries@squid-cache.org>
COPYRIGHT
This program and documentation is copyright to the authors named above.
Distributed under the GNU General Public License (GNU GPL) version 2 or
later (GPLv2+).
QUESTIONS
Questions on the usage of this program can be sent to the Squid Users
mailing list <squid-users@squid-cache.org>
REPORTING BUGS
Bug reports need to be made in English. See http://wiki.squid-
cache.org/SquidFaq/BugReporting for details of what you need to include
with your bug report.
Report bugs or bug fixes using http://bugs.squid-cache.org/
Report serious security bugs to Squid Bugs <squid-bugs@squid-cache.org>
Report ideas for new improvements to the Squid Developers mailing list
<squid-dev@squid-cache.org>
SEE ALSOsquid(8), GPL(7),
The Squid FAQ wiki http://wiki.squid-cache.org/SquidFaq
The Squid Configuration Manual http://www.squid-cache.org/Doc/config/
ntlm_sspi_auth.exe(8)
