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URL access based on AD group membership

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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@xxxxxxx
Website:
http://www.tcs.com
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From:        Eliezer Croitoru <eliezer@xxxxxxxxxxxx>
To:        'Nilesh Gavali' <nilesh.gavali@xxxxxxx>
Cc:        squid-users@xxxxxxxxxxxxxxxxxxxxx
Date:        20/06/2016 10:06
Subject:        RE: 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@xxxxxxxxxxxx


 
From: squid-users [mailto:squid-users-bounces@xxxxxxxxxxxxxxxxxxxxx] On Behalf Of Nilesh Gavali
Sent:
Friday, June 17, 2016 5:25 PM
To:
squid-users@xxxxxxxxxxxxxxxxxxxxx
Subject:
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@xxxxxxxxxxx
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@xxxxxxxxxxx)(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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