We can control website or ip to access or accessed by squid proxy server . We can set timely access rule or some ip range to acccess the server or also can block some website or ip for a range of ip or for  some limited time .

#To block a particular Network:

#To block a particular ip:

#To block a particular URL:

#To block a list of sites from / specified in a file:

#Blocking web access by time:

#acl aclname time [day-abbrevs] [h1:m1-h2:m2]

#h1:m1 must be less than h2:m2
#Day-abbrevs:
#S – Sunday,M – Monday,T – Tuesday,W – Wednesday,H – Thursday,F – Friday,A – Saturday

 

#To block the URLs contains the word “word”:

#To prevent downloading files:

#To block access to some TLDs:

 

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Now create block file and service restart

 

[root@ubuntu Desktop]# /etc/init.d/squid3 restart
Stopping squid: [FAILED]
Starting squid: . [ OK ]
[root@ubuntu Desktop]# chkconfig squid3 on

#1: Create an acl for proxy clients.

#2: Create an acl for facebook domain  (any required sites)

 

#3: Create an acl office time for Mon-Sat, 10:00 to 17:00 (24hrs)

#4: Deny access to “http” facebook to accountant only in office times

#5: The below line will deny access to “https” secured facebook to the proxy user “accountant” in office times. Squid proxy will deny access to “https” facebook to accountant only in office times.

[root@ubuntu ~#]service squid3 restart

Tips: The way to include multiple sites in one ACL
acl badsites dstdomain .facebook.com .twitter.com .blogger.co

• ban domain access in squid proxy server
• ban facebook by squid proxy
• ban google by squid proxy
• bann domain access in squid proxy server
• Blocking Domain
• Blocking IP
• Blocking Time to Access Websites in Squid Proxy Server !