Hi agan agan master, seklias ane mau bertanya tentang masalh squid proxy nih :
berikut topologi nya : INTERNET >>> GATEWAY&PROXY >>> CLIENT
saya menggunakan centos 6.5

dan ini settingan proxy squid.conf saya :

visible_hostname proxy.XXXXXXXXXXX.co.id



#auth_param basic program /usr/lib/squid/squid_ldap_auth -v 3 -w XXXXXXXXX -b dc=sianyuperkasa,dc=co,dc=id -f "(&(objectClass=zimbraAccount)(uid=%s))" -h ###.###.###.###

#auth_param basic program /usr/lib/squid/squid_ldap_auth -v 3 -b dc=zimbra,dc=sianyuperkasa,dc=co,dc=id -f "(&(uid=%s)(objectClass=zimbraAccount))" -h ###.###.###.###

auth_param basic program /usr/lib/squid/squid_ldap_auth -v 3 -D uid=zimbra,cn=admins,cn=zimbra -w XXXXXXXXX-b ou=people,dc=sianyuperkasa,dc=co,dc=id -f (&(objectClass=zimbraAccount)(uid=%s)) -h ###.###.###.###

auth_param basic children 500

auth_param basic realm WEB-PROXY

auth_param basic credentialsttl 60 minute



acl ldapauth proxy_auth REQUIRED

http_access allow ldapauth





#

# Recommended minimum configuration:

#

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



acl url_block dstdomain "/etc/squid/blockedweb.txt"



acl lan src 10.0.5.0/24

http_access allow lan

http_access deny url_block



#

# 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 allow localnet

http_access allow localhost



# And finally deny all other access to this proxy

http_access deny all



# Squid normally listens to port 3128

http_port 3128



# Uncomment and adjust the following to add a disk cache directory.

cache_dir ufs /var/spool/squid 100 16 256

cache_mem 32 MB



# Leave coredumps in the first cache dir

coredump_dir /var/spool/squid



# 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_mgr [email]admin@XXXXXXXXXXX.com[/email]

dns_v4_first on

isi dari "/etc/squid/blockedweb.txt" :

.youtube.com

.detik.com

.facebook.com

Tapi kasusnya komputer client tetap masih bisa buka website yang di block tersebut.
tolong pencerahaanya yah