Hi All, I have implemented the AD authentication with squid3. I would like to add another level of authentication which should be local to unix box something like ncsa. When AD authentication fails then it should switch to other authentication and even if it fails then deny the packet. In squid, when I define auth_param basic program /usr/lib/ncsa_auth /etc/squid3/passwd auth_param basic program /usr/lib/squid_ldap_auth ... the bottom line is configured by initiating the helper programs and the top line is ignored. If I interchange the above lines then again the bottom program is initiated and top one is ignored. Can someone guide me how to create the dual level authen. I read the multiple services authentication FAQ on http://wiki.squid-cache.org/ConfigExamples/Authenticate/MultipleSources but couldn't understand fully. I understood myacl.pl is used for authentication but how I do define username and password for users using this method? Regards