Menghitung Subnet (Share)

Just wanna share what I have learned in 2 days at BiNus Center (Beginner)

Example : 192 . 168 . 5 . 1 /21
Dirubah ke binary code : 11000000 . 10101000 . 00000101 . 00000001
Subnet masknya (21) : 11111111 . 11111111 . 11111000 . 00000000

Selanjutnya, hitung dengan cara "AND" (kalo 1 AND 1 = 1, 1 AND 0 = 0)
Hasilnya : 11000000 . 10101000 . 00000000 . 00000000 (Desimal : 192 . 168 . 0 . 0)

Cara menghitung jumlah network yang bisa dipakai
2^(jumlah bit yang sudah terisi (1) dalam satu byte (8 bit) yg berubah (11111000)) - 2
jadi, 2^5 - 2 = 30
berarti, ada 30 network/subnet.

Cara menghitung host per network
(2^(jumlah bit yg belum terisi (0) dalam satu byte (8 bit) yg berubah (11111000)) * 256 (byte terakhir)) - 2
jadi, (2^3 * 256) - 2 = 2046 host.

Jadi, subnet yg bisa d pakai 192 . 168 . 0 - 30 (dari hasil perhitungan jumlah network) . 0 - 255

Itu cara simplenya. Semoga bermanfaat, sorry klo ada kesalahan. Thx
"Let's try if you wanna know"

The Most Dangerous Drugs (just share)

#20 Khat
Street Names : Abyssinian Tea, African Salad
Street Price : 4 pounds a bunch
UK Users : 40,000
UK Deaths per year : 0 recorded

#19 Alkyl Nitrite
Street Names : Poppers, Liquid Gold
Street Price : 2-6 pounds a bottle
UK Users : 400,000
UK Deaths per year : 0 recorded

#18 Ecstasy
Street Names : E, Love Drug, Hug Drug
Street Price : 1-8 pounds a pill
UK Users : 500,000
UK Deaths per year : 27

#17 GHB
Street Name : Liquid Ecstasy
Street Price : 5 pounds a dose
UK Users : N/A
UK Deaths per year : 3

#16 Anabolic Steroids
Street Price : 20 pounds for 100 tablets
UK Users : 42,000
UK Deaths per year : 0 recorded

#15 Methylphenidate
Street Name : Vitamin R
Street Price : 15 pounds a hit
UK Users : 40,000
UK Deaths per year : 0 recorded

#14 LSD
Street Names : Lucy, Trips, Paper Mushrooms
Street Price : 1-5 pounds a tab
UK Users : 83,000
UK Deaths per year : 0 recorded

#13 4MTA
Street Names : Flatliner, Golden Eagle
Street Price : 1-8 pounds
UK Users : N/A
UK Deaths per year : 0 recorded

#12 Solvents
Street Price : 2 pounds and up
UK Users : 30,000
UK Deaths per year : 50-60

#11 Cannabis
Street Names : Dope, Hash, Bob
Street Price : 40-140 pounds per ounce
UK Users : 3 million
UK Deaths per year : 1

#10 Buprenorphine
Street Names : Subbies, Temmies
Street Price : 2 pounds a dose
UK Users : N/A
UK Deaths per year : 2

#9 Tobacco
Street Price : 5+ pounds
UK Users : 10 million
UK Deaths per year : 114,000

#8 Amphetamine
Street Names : Speed, Whizz, Dexies, Billys
Street Price : 8-12 pounds a wrap
UK Users : 430,000
UK Deaths per year : 35

#7 Benzodiazepine
Street Names : Benzos, Downers
Street Price : 1 pound a dose
UK Users : 100,000
UK Deaths per year : 406

#6 Ketamine
Street Names : Special K, Vitamin K
Street Price : 15-40 pounds a gram
UK Users : 100,000
UK Deaths per year : 1

#5 Alcohol
Street Price : 1+ pound
UK Users : 40 million
UK Deaths per year : 40,000

#4 Street Methadone
Street Names : The Precious, Slime, Green
Street Price : 10 pounds per 100 ml
UK Users : 33,000
UK Deaths per year : 295

#3 Barbiturates
Street Names : Pink Ladies, Red Devils
Street Price : 1-2 pounds a tablet
UK Users : N/A
UK Deaths per year : 20

#2 Cocaine
Street Names : Charlie, Coke, Base
Street Price : 30+ pounds Powder, 10+ pounds for Crack Rock
UK Users : 780,000
UK Deaths per year : 214

#1 Heroin
Street Names : Brown, Skag, Gear, Smack
Street Price : 10-20 pounds a bag
UK Users : 300,000
UK Deaths per year : 700

Source : BBC Horizon

Thx for your attention
"Get busy living or Get busy dying"

First time create blog

pusing mau nulis apaan. Gak ada kerjaan d kosan, terjebak hujan, bosen, g ada makanan, jadinya iseng buat blog