[squid-users] URL access based on AD group membership
Nilesh Gavali
nilesh.gavali at tcs.com
Mon Jun 20 09:21:47 UTC 2016
Thanks Eliezer for reply.
Its is working now for be perfectly with below command with -d option
gives helpful debug info to troubleshoot.
external_acl_type AD_Group %LOGIN /usr/lib64/squid/squid_ldap_group -P -R
-b "DC=ABCD,DC=GOV,DC=IN" -D svcproxy -w 123456789 -f
"(&(objectclass=person)(userPrincipalName=%v)(memberof=cn=%a,ou=InternetAccess,ou=Groups,dc=ABCD,dc=GOV,dc=IN))"
-h abcd.gov.in -s sub -v 3 -d
Currently I have configure squid with AD kerberos auth. also url access
restricted based on AD group membership.
Now I observed, is that when I add any user to one of the AD group which
allowed in squid. it is not accepting the changes until I restart the
squid service.
Is this the way squid behave or do I need to follow different procedure.
So as user added to AD group it will recognised by squid on the fly
without restarting squid service.
Thanks & Regards
Nilesh Suresh Gavali
Tata Consultancy Services
3rd Floor, Tithebarn House
Tithebarn Street
Liverpool - L2 2NZ
United Kingdom
Mailto: nilesh.gavali at tcs.com
Website: http://www.tcs.com
____________________________________________
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Consulting
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and registered with Registrar of Companies, Mumbai, India - No: 11-84781
HQ : Nirmal Building , 9th Floor, Nariman Point, Mumbai - 400 021, India -
Registered in UK : 18 Grosvenor Place, London SW1X 7HS - BR :007627
From: Eliezer Croitoru <eliezer at ngtech.co.il>
To: 'Nilesh Gavali' <nilesh.gavali at tcs.com>
Cc: squid-users at lists.squid-cache.org
Date: 20/06/2016 10:06
Subject: RE: [squid-users] URL access based on AD group membership
Hey Nilesh,
Did you tried to test it in any way outside of squid?
Like in a command line as a self running program?
Eliezer
----
Eliezer Croitoru
Linux System Administrator
Mobile: +972-5-28704261
Email: eliezer at ngtech.co.il
From: squid-users [mailto:squid-users-bounces at lists.squid-cache.org] On
Behalf Of Nilesh Gavali
Sent: Friday, June 17, 2016 5:25 PM
To: squid-users at lists.squid-cache.org
Subject: [squid-users] URL access based on AD group membership
Team;
Need expert help here,
here is my set up - as of now squid integrated with Windows 2012R2 AD, SSO
with kerberos - working fine.
Now I want to restrict Internet access for user based on their AD group
membership. I tried loads of options from various site but no luck. not
sure what is going wrong.
here is my squid config, and cache.log o/p.
=============================
#
# Recommended minimum configuration:
#
auth_param negotiate program /usr/lib64/squid/squid_kerb_auth -s
HTTP/proxy02.abcd.gov.in at ABCD.GOV.IN
auth_param negotiate children 10
auth_param negotiate keep_alive on
auth_param basic credentialsttl 2 hours
acl ad_auth proxy_auth REQUIRED
#AD Group membership
external_acl_type AD_Group %LOGIN /usr/lib64/squid/squid_ldap_group -P -R
-b "DC=ABCD,DC=GOV,DC=IN" -D svcproxy -w 123456789 -f
"(&(objectclass=person)(userPrincipalName=%u)(memberof=cn=%g,ou=InternetAccess,ou=Groups,dc=ABCD,dc=GOV,dc=IN))"
-h abcd.gov.in -s sub -v 3 -d
acl infrateam external AD_Group lgInternetAccess
acl windowsupdate dstdomain "/etc/squid/sitelist/infra_update_site"
acl manager proto cache_object
acl localhost src 127.0.0.1/32 ::1
acl to_localhost dst 127.0.0.0/8 0.0.0.0/32 ::1
# Example rule allowing access from your local networks.
# Adapt to list your (internal) IP networks from where browsing
# should be allowed
acl localnet src 10.0.0.0/8 # RFC1918 possible internal network
acl localnet src 172.16.0.0/12 # RFC1918 possible internal network
acl localnet src 192.168.0.0/16 # RFC1918 possible internal network
acl localnet src fc00::/7 # RFC 4193 local private network range
acl localnet src fe80::/10 # RFC 4291 link-local (directly plugged)
machines
acl SSL_ports port 443
acl Safe_ports port 80 # http
acl Safe_ports port 21 # ftp
acl Safe_ports port 443 # https
acl Safe_ports port 70 # gopher
acl Safe_ports port 210 # wais
acl Safe_ports port 1025-65535 # unregistered ports
acl Safe_ports port 280 # http-mgmt
acl Safe_ports port 488 # gss-http
acl Safe_ports port 591 # filemaker
acl Safe_ports port 777 # multiling http
acl CONNECT method CONNECT
#
# Recommended minimum Access Permission configuration:
#
# Only allow cachemgr access from localhost
http_access allow manager localhost
http_access deny manager
# Deny requests to certain unsafe ports
http_access deny !Safe_ports
# Deny CONNECT to other than secure SSL ports
http_access deny CONNECT !SSL_ports
# We strongly recommend the following be uncommented to protect innocent
# web applications running on the proxy server who think the only
# one who can access services on "localhost" is a local user
#http_access deny to_localhost
#
# INSERT YOUR OWN RULE(S) HERE TO ALLOW ACCESS FROM YOUR CLIENTS
#
#
# Example rule allowing access from your local networks.
# Adapt localnet in the ACL section to list your (internal) IP networks
# from where browsing should be allowed
http_access deny infrateam windowsupdate
http_access allow ad_auth
# And finally deny all other access to this proxy
http_access deny all
# Squid normally listens to port 3128
http_port 8080
never_direct allow all
cache_peer xx.xx.2.108 parent 8080 0 default
#dns_nameservers DNSSVR.abcd.gov.in
dns_nameservers XX.XX.2.108
# We recommend you to use at least the following line.
#hierarchy_stoplist cgi-bin ?
# Uncomment and adjust the following to add a disk cache directory.
cache_dir ufs /var/spool/squid 2048 16 256
# Leave coredumps in the first cache dir
coredump_dir /var/spool/squid
# Log forwarding to SysLog
access_log syslog:local1.info
# Add any of your own refresh_pattern entries above these.
refresh_pattern ^ftp: 1440 20% 10080
refresh_pattern ^gopher: 1440 0% 1440
refresh_pattern -i (/cgi-bin/|\?) 0 0% 0
refresh_pattern . 0 20% 4320
======================================
cache.log o/p-
Connected OK
group filter '(&(objectclass=person)(
userPrincipalName=da.853438 at ABCD.GOV.IN)(memberof=cn=lgInternetAccess,ou=InternetAccess,ou=Groups,dc=abcd,dc=gov,dc=in))
', searchbase 'DC=ABCD,DC=GOV,DC=IN'
======================================
Thanks & Regards
Nilesh Suresh Gavali
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