Short for Domain Name System (or Service or Server), an Internet service that translates domain names into IP addresses. Because domain names are alphabetic, they're easier to remember. The Internet however, is really based on IP addresses. Every time you use a domain name, therefore, a DNS service must translate the name into the corresponding IP address.

If you want to know utilization or performance your Squid Proxy, you can use MRTG to monitoring Squid Proxy. This can do, because Squid Proxy support SNMP and you must configure squid with SNMP support.

Squid is web caching and conserving badwidth application. With Squid, we will reduce the traffic 30% or more from normal usage (without squid) and enhance respone time. In here, i will use squid 2.7.STABLE3.

Installing Squid.
You can download Squid from here. After you download the source of squid, then :

# tar zxvf squid-2.7.STABLE3.tar.gz
# cd  squid-2.7.STABLE3
# ./configure '--sysconfdir=/etc/squid' '--enable-storeio=diskd,ufs,aufs' '--enable-delay-pools' \
'--enable-pf-transparent' '--enable-ipf-transparent' '--disable-ident-lookups' \
'--enable-removal-policies'
# make
# make install

Installing FreeBSD

1. 1. Select Region.
   2. Select Standart Installation.
   3. Use all drive for FreeBSD.
   4. Create Disklabel, on my installation use 80GB of harddisk, and here my disk label
      • / 512MB
      • swap 1GB
      • /tmp 1GB
      • /usr 4GB
      • /var 2GB
      • /home 1GB
      • /cache (all the rest off harddisk space).
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Quick Start for Impatient Configuration export from the gateway router:

/ ip address add address=192.168.0.1/24 network=192.168.0.0 broadcast=192.168.0.255 \
interface=Local comment="" disabled=no

add address=10.111.0.2/24 network=10.111.0.0 broadcast=10.111.0.255 \
interface=wlan2 comment="" disabled=no

add address=10.112.0.2/24 network=10.112.0.0 broadcast=10.112.0.255 \
interface=wlan1 comment="" disabled=no

In a Case, there is my client wishing topology in its(the network using machine Mikrotik which will be joined forces with Squid, where this Squid stays in machine FreeBSD. He wishs, arrangement of shaping easily, by using Simple Queue.

If topology like this : INET ------- Mikrotik --------- SQUID -------- Client

Bandwidth Management is handle by SQUID. We wanted is like this :

INET | Mikrotik ---- SQUID | Client

So, shaping to client is handle by Mikrotik.

Following I submit, way of using samba at CentOS. For other OS, usage of samba nor different far.

1. Install Centos 44 Don't forget when install there are option Firewall and selinux, please select;choose option “ no firewall” and Selinux chooses “ disable”.

To protect the Router from port scanners, we can record the IPs of hackers who try to scan your box. Using this address list we can drop connection from those IP in :

I have Atheros AR5BXB63 chipset for my wireless card in my Laptop, when i install Ubuntu 8.04, there was problem to detect my wireless card.
I have done the following and it works now: