Thanks Henrik Nordstrom no-query and login=guest:guest123 option in cache_peer has solved muy problem. Now Imy squid.conf is like this- Proxy having IP address 20.20.20.1 has squid.conf has following option #To authenticate with parent proxy 10.10.10.1 cache_peer 10.10.10.1 parent 8080 3130 login=guest:guest123 # use ncsa_auth for authentication auth_param basic program /usr/lib/squid/ncsa_auth /etc/squid/passwd auth_param basic children 5 # ACL description acl all src 0.0.0.0/0.0.0.0 acl localnetwork src 20.20.20.0/24 acl manager proto cache_object acl localhost src 127.0.0.1/255.255.255.255 acl to_localhost dst 127.0.0.0/8 acl Safe_ports port 8080 acl CONNECT method CONNECT acl ncsa_users proxy_auth REQUIRED # authentication for all user required # List of http_access http_access allow localhost http_access allow localnetwork http_access allow ncsa_users http_access allow Safe-ports http_access allow password http_access allow all #OTHERS http_reply_access allow all icp_access allow all http_port 8080 coredump_dir /var/spool/squid https_port 8080 NOW I NEED HELP FOR FOLLOWING. TIA Q1- I am able to browse internet from any of my PC on my netwok (20.20.20.0/24). But users are not being asked for username & password for authentication. What's wrong? Q2- Is the sequence of http_access is correct? If any sequence cxhange required, please suggest. Q3- Is "http_access allow password" required at all? My friend says it is on no use. > > When I am trying to accesses a web page thry browser on the same > > machine where squid is running, error being logged in access.log is > > TIMEOUT_FIRST_UP_PARENT. > > User are being authenticated successfully thru ncsa_auth. > > Are you inside a firewall, requiring you to use a parent to reach the > internet? If so see the FAQ on how to use Squid within a firewalled > network. > > In addition, does your parent support ICP? If not you need to use the > no-query option. > Henrik