bahan :
- RB750 VER 4.9
- 2 Line Speedy Paket Office
- Ubuntu Versi 10.04

SISI MIKROTIK :
/ip adrress
 
  - 172.19.196.1/24 interface proxy
  - 192.168.88.1/24 interface lan
  - 192.168.1.1/24  interface modem-1
  - 192.168.2.1/24  interface modem-2

catatan : - dial lewat mikrotik dgn modem sbg brigde
          - ip mesin ubuntu 172.19.196.100
             

Langkah demi langkah

MASUKKAN CD UBUNTU KE CDROM DAN REBOOT KOMPUTERNYA " hehehe.....
‘- Pilih language english (enter)
‘- Pilih instal ubuntu server (enter)
‘ -Tekan enter pada choose langguage english
‘- Pilih united states
‘- Klik no pada detect keyboard layout?
‘- Klik USA pada ubuntu installer main menu
‘- Klik USA pada keyboard layout
‘- Klik continue pada configure the network
‘- Pilih configure network manually isi ip address dg 172.19.196.100 pilih continue enter
‘- Netmask 255.255.255.0 pilih continue enter
‘- Gateway 172.19.196.1 terus klik continue
‘- Name server addresses 172.19.196.1 pilih continue enter
‘- Hotsnama : isi dg proxyku terus pilih continue enter
‘- Domain name: di kosongin saja, pilih continue enter
‘- Pada configure the clok pilih select from worldwide list terus cari jakarta terus enter

For optimation Squid Proxy with FreeBSD is tuning the kernel with some following option.

options MAXFILES=4096
options NMBCLUSTERS=10240

options MSGMNB=16384
options MSGMNI=42
options MSGSEG=2049
options MSGSSZ=64
options MSGTQL=2048

options SHMSEG=64
options SHMMNI=96
options SHMMAX=2097152
options SHMALL=4096

options MAXDSIZ=”(384*1024*1024)”
options DFLDSIZ=”(384*1024*1024)”
options MAXSSIZ=”(256*1024*1024)”

• src: source (client) IP addresses
• dst: destination (server) IP addresses
• myip: the local IP address of a client's connection
• arp: Ethernet (MAC) address matching
• srcdomain: source (client) domain name
• dstdomain: destination (server) domain name
• srcdom_regex: source (client) regular expression pattern matching
• dstdom_regex: destination (server) regular expression pattern matching
• src_as: source (client) Autonomous System number
• dst_as: destination (server) Autonomous System number
• peername: name tag assigned to the cache_peer where request is expected to be sent.
• time: time of day, and day of week

Sebagai akselerator akses website, maka squid berada antara klien dan satu atau lebih website.

Keuntungan yang diperoleh yaitu :

• Caching

Berikut tahapan instalasi Squid di windows:

• Donwload binary file squid

File download dapat diperoleh di http://squid.acmeconsulting.it/download/dl-squid.html
File yang dipilih untuk di  download ada 3 pilihan, yaitu
- Standard ==> Untuk fungsi standar dari squid
- Delay Pools ==> Menyertakan fungsi Delay Pools
- SSL Support ==> Menyertakan fungsi SSL

Y'day I got a chance to play with Squid and iptables. My job was simple : Setup Squid proxy as a transparent server.
Main benefit of setting transparent proxy is you do not have to setup up individual browsers to work with proxies.
My Setup:

i) System: HP dual Xeon CPU system with 8 GB RAM (good for squid).
ii) Eth0: IP:192.168.1.1
iii) Eth1: IP: 192.168.2.1 (192.168.2.0/24 network (around 150 windows XP systems))
iv) OS: Red Hat Enterprise Linux 4.0 (Following instruction should work with Debian and all other Linux distros)