Installaion of squid with squidguard

1. apt-get update
2. apt-get install squid
3. open squid.conf for configuration
vi /etc/squid3/squid.conf

change the below mentioned lines..


http_port 3128 transparent
cache_mem 64 MB
maximum_object_size 11000 KB
minimum_object_size 0 KB
maximum_object_size_in_memory 64 KB


cache_dir ufs /usr/spool/squid3 50000 16 256     #(50000 = 50GB cache storage)
cache_access_log /var/log/squid3/access.log
cache_log /var/log/squid3/cache.log
cache_store_log /var/log/squid3/store.log
visible_hostname proxy #(replace your proxy server name with proxy)

acl access_all src 192.168.1.0
http_access allow access_all
:wq #save file and exit


3. create cache folder
4. mkdir /usr/spool
5. mkdir /usr/spool/squid
6. change the permission of squid cache directory.
7. chown proxy:proxy /usr/spool/ -R
8. enable ipv4 packet forwording. go to /etc/sysctl.conf. uncomment the line no 26 #net.ipv4.ip_forward=1
9. reload the file

root# sysctl -p

now start the squid service

# /etc/init.d/squid start

check squid service process

# ps aux | grep squid


1.  apt-get install squidGuard
2.  copy blacklist.tgz in /opt folder
3.  extract the blacklist folder # tar -xvf blacklist.tgz
4.  go to blacklist directory.
5.  copy blacklist subfolder in /var/lib/squidguard/db/ forlder.
6.  cp -r * /var/lib/squidguard/db/
7.  go to /var/lib/squidguard/db/ folder
8.  chown proxy:proxy * -R
9.  squidGuard -C all   ### for create db files.
10. change ownership of the .db files.
    chown proxy:proxy * -R
11. add 2 lines in squid.conf

url_rewrite_program /usr/bin/squidGuard -c /etc/squid/squidGuard.conf
url_rewrite_children 10

save and exit.

12. restart the squid service
13. check the status of squidGuard.
# ps aux | grep squid


proxy     2019  0.1  0.8  41320 17580 ?        Ss   11:19   0:00 /usr/sbin/squid -N -D
proxy     2063  0.6  0.2  13024  4432 ?        Ss   11:27   0:00 (squidGuard) -c /etc/squid/squidGuard.conf
proxy     2064  0.6  0.2  13024  4436 ?        Ss   11:27   0:00 (squidGuard) -c /etc/squid/squidGuard.conf
proxy     2065  0.6  0.2  13024  4436 ?        Ss   11:27   0:00 (squidGuard) -c /etc/squid/squidGuard.conf
proxy     2066  0.6  0.2  13020  4428 ?        Ss   11:27   0:00 (squidGuard) -c /etc/squid/squidGuard.conf
proxy     2067  0.6  0.2  13020  4436 ?        Ss   11:27   0:00 (squidGuard) -c /etc/squid/squidGuard.conf
proxy     2068  0.6  0.2  13024  4436 ?        Ss   11:27   0:00 (squidGuard) -c /etc/squid/squidGuard.conf
proxy     2069  0.6  0.2  13020  4428 ?        Ss   11:27   0:00 (squidGuard) -c /etc/squid/squidGuard.conf
proxy     2070  0.6  0.2  13020  4428 ?        Ss   11:27   0:00 (squidGuard) -c /etc/squid/squidGuard.conf
proxy     2071  0.3  0.2  13020  4428 ?        Ss   11:27   0:00 (squidGuard) -c /etc/squid/squidGuard.conf
proxy     2072  0.3  0.2  13024  4432 ?        Ss   11:27   0:00 (squidGuard) -c /etc/squid/squidGuard.conf
root      2075  0.0  0.0   7624   928 pts/0    R+   11:27   0:00 grep --color=auto squid

Note: first add category role in squidguard.conf then create .db file.