CS & IT Solutions

RIS is Microsoft’s version of 3rd party imaging software such as Symantec’s Ghost. RIS uses various technologies, such as PXE and DHCP to install clean installations, (not upgrade), of several operation systems. The PXE protocol is a combination of DHCP and TFTP, where DHCP is used to locate a boot server or servers, with TFTP used to download the initial bootstrap program and additional files. The bootstrap program can then begin the OS installation.

The process of installing and configuring RIS is described below:

• Step 1 – Install the Remote Installation Service
• Step 2 – Further Configuration for Extended Use
• Step 3 – Using Symantec Ghost with RIS
• Step 4 – Troubleshooting RIS
• Create an Unattended Install Answer File
• Create a Ghost Image Bootable DVD

Step 1 – Install the Remote Installation Service Read the rest of this entry »

Download Berkeley Db from oracle website

cd /usr/local

wget http://download.oracle.com/berkeley-db/db-4.8.26.tar.gz

#tar -zxvf db-4.8.26.tar.gz

#cd db-4.8.26/build-unix

run this command

#../dist/configure –prefix=/usr/local/db/

after that

#make && make install

this will install it in /usr/local/db

go and verify new directories there e.g bin and include etc

if yes then

#cd /usr/local

wget http://www.squidguard.org/Downloads/squidGuard-1.4.tar.gz

unzip it using

# tar -zxvf squidGuard-1.4.tar.gz

# cd squidGuard-1.4

# ./configure –prefix=/usr/local/squidGuard –with-db=/usr/local/db/ –with-sg-config=/usr/local/squidGuard/squidGuard.conf

#make && make install

% cd /usr/local/squidGuard
% vi squidGuard.conf

Copy and paste this for a minimal configuration

#####################################################################

logdir /usr/local/squidGuard/log
dbhome /usr/local/squidGuard/db 

dest bar_adult {
        domainlist bar_adult/domains
        urllist    bar_adult/urls
} 

acl {
        default {
                pass !bar_adult all
                redirect http://127.0.0.1/blocked.php?url=%u
                # if webserver is running on the same system
                # and u have already made a blocked.php file and placed it in webserver root directory
                # if not make a block.html page add what ever u want and make it.
                #redirect http://yourwebserverip/block.html
        }
}

##################################################################################

% cd /usr/local/squidGuard
% mkdir db
% mkdir log
% touch log/squidGuard.log
% cd db
% mkdir bar_adult
% cd bar_adult

now we create the files themselves. Create a file called domains and

fill it with domains – one per line – in the following type format:

adult_content.com
naughty.com

now create a file called urls and fill it with urls – one per line in the following format:

foo.com/~adult
bar.com/img/sexy

edit you squid.conf where ever is it

add a line

redirect_program /usr/local/squidGuard/bin/squidGuard

after that

/usr/local/squid/sbin/squid -k reconfigure

/usr/local/squid/sbin/squid -k parse

/usr/local/squid/sbin/squid NCd1

if all is ok reload your squid.

It will work.