Tom Tux wrote:
Hi Amos
Thanks a lot for this explanation. Both configurations seperately -
native kerberos and native ldap - are working fine. But in
combination, there is still one problem.
Here is my actual configuration (combined two mechanism) again:
auth_param negotiate program /usr/local/squid/libexec/squid_kerb_auth -i
auth_param negotiate children 50
auth_param negotiate keep_alive on
external_acl_type SQUID_KERB_LDAP ttl=3600 negative_ttl=3600 %LOGIN
/usr/local/squid_kerb_ldap/bin/squid_kerb_ldap -d -g "InternetUsers"
acl INTERNET_ACCESS external SQUID_KERB_LDAP
external_acl_type SQUID_DENY_KERB_LDAP ttl=3600 negative_ttl=3600
%LOGIN /usr/local/squid_kerb_ldap/bin/squid_kerb_ldap -d -g
"DenyInternetUsers"
acl DENY_INTERNET_ACCESS external SQUID_DENY_KERB_LDAP
# LDAP-Fallback
auth_param basic program /usr/local/squid/libexec/squid_ldap_auth -R
-v 3 -b "dc=xx,dc=yy" -D "cn=binduser,dc=xx,dc=yy" -w "something" -f
"(&(&(objectClass=Person)(sAMAccountName=%s))(memberOf=cn=InternetUsers,DC=xx,DC=yy))"
-c 3 -h ldaps://xx.xx.xx.xx -h ldaps://xx.xx.xx.xx
auth_param basic children 20
auth_param basic realm "Internet Access"
auth_param basic credentialsttl 2 hour
acl INTERNET_ACCESS_LDAP proxy_auth REQUIRED src 0.0.0.0
The "src" and "0.0.0.0" usernames (yes *usernames*) should be ignored by
Squid.
And here the relevant part of the http_access-directives:
http_access deny DENY_INTERNET_ACCESS
http_access deny !INTERNET_ACCESS
http_access deny !INTERNET_ACCESS_LDAP
http_access allow INTERNET_ACCESS
http_access allow INTERNET_ACCESS_LDAP
http_access deny all
With this configuration, I'm able to access with kerberos, but never
with ldap. I always got a "access denied". What directives do I have
to change/add, to get both accesses (kerberos & ldap)?
Run Squid with "debug_options 82,3 28,3" to check which ACLs are
matching and which denying.
I notice the !INTERNET_ACCESS is required to pass before anything is
allowed. It could be that your Basic protocol credentials are not being
accepted by the Negotiate/Kerberos protocol group helper and inverting
into a deny.
Amos
--
Please be using
Current Stable Squid 2.7.STABLE9 or 3.1.6
Beta testers wanted for 3.2.0.1
