8 cong cu bao mat WiFi mien phi tot nhat

Thứ ba, 03 Tháng một 2012, 10:18 GMT+7

Duoi day la mot so cong cu huu ich, da phan co the su dung tren cac he dieu hanh pho bien hien nay nhu Windows, MacOS X hay Linux, voi chung ban co the nhin thay tat ca cac Access Point (AP - diem truy cap mang khong day) o gan kem theo cac thong tin chi tiet nhu kenh, tan so tin hieu, dia chi MAC. 

Ngay ca khi ban da co mot bo phan tich pho song Wi-Fi chuyen nghiep nhu Wi-Spy hay AirMagnet, cac cong cu bao mat Wi-Fi mien phi van rat huu dung. Nhung cong cu nay co the duoc dung de thiet ke hoac cai dat mang khong day, khac phuc su co hay bao tri.

1. NetStumbler

1.jpg

NetStumbler la mot trong nhung cong cu lau doi nhat va noi tieng nhat hien nay. NetStumbler chay tren he dieu hanh Windows va Windows CE/Mobile, giup liet ke cac AP o gan va cac thong tin co ban nhu: SSID, kenh, toc do, dia chi MAC, hang san xuat va chuan ma hoa.

Khong giong nhu cac cong cu khac, NetStumbler khong chi hien thi tin hieu, nhieu va ti le nhieu, ma con ho tro dinh vi GPS nham xac dinh vi tri cua cac AP nay. Tuy nhien cong cu nay da khong duoc cap nhat them ke tu nam 2004 va co the khong chay on dinh tren cac he dieu hanh Windows Vista/Windows 7 va cac tham chi la Windows XP 64 bit., chung khong hien thi thuc su chinh xac chuan ma hoa cua AP, vi du chung luon hien thi AP duoc ma hoa voi chuan WEP trong khi thuc te co the la WPA hay WPA2.

2. Vistumbler

2.jpg

Vistumbler la chuong trinh phan tich song Wi-Fi ma nguon mo dau tien duoc phat hanh vao nam 2007 va duoc cap nhat moi nhat vao nam 2010. Vistumbler hien thi thong tin co ban ve AP, bao gom chinh xac cach ma hoa va xac thuc, ca SSID va RSSI cua AP.

Tuong tu nhu NetStumbler, ban co the xem danh sach tat ca cac AP hay theo phan loai kieu xac thuc, ma hoa, kenh, kieu mang va SSID. Thay vi chi hien thi dang van ban, Vistumbler cho phep ban co the xem ca bieu do tin hieu cua AP. Ngoai ra, Vistumbler rat de tuy bien va co cac tuy chon cau hinh rat linh hoat. Vistumbler ho tro GPS, giup dinh vi chinh xac vi tri cua cac AP theo thoi gian thuc thong qua Google Earth.

Tuy nhien, khong giong nhu NetStumbler, Vistumbler chi cho ban thong tin ve muc do tin hien ma khong hien thi nhieu. Ung dung nay cung chi ho tro cho 2 he dieu hanh Windows Vista va Windows 7.

3. InSSIDer

3.jpg

InSSIDer la phan mem phan tich song Wi-Fi nguon mo kha moi hien nay, cho phep hien thi thong tin chi tiet ve danh sach cac AP, tuy nhien InSSIDer chi hien thi duoc RSSI ma khong hien thi chinh xac phuong thuc xac thuc cua AP, khong hien thi duoc nhieu va ti le nhieu tren tin hieu (SNR).

Song tien ich nay lai co chuc nang hien thi bieu do rat tot. Muc tin hieu duoc hien thi tren bieu do theo thoi gian quang 5 phut. Sau do co mot do thi cho moi kenh 2.4GHz va 5GHz, hien thi muc tin hieu hien tai va chieu rong kenh cua moi AP. Ban co the loc cac AP dua theo dai tan, kenh, tin hieu, muc do bao mat. InSSIDer cung ho tro chuc nang GPS va cho phep truy cap kem Google Earth

4. NetSurveyor

4.jpg

NetSurveyor la cong cu mien phi nhung o dang nguon dong, duoc cap nhat lan cuoi vao nam 2009, khi thuc thi se hien thi cac thong tin co ban cua cac AP, nhung cac thong tin ve phuong thuc xac thuc va ma hoa lai khong duoc hien thi chi tiet (chi cho biet co hay khong co ma hoa) va khong cho phep nguoi dung tuy bien bat cu dieu gi.

Tuy khong ho tro hien thi muc do nhieu, NetSurveyor lai la ung dung cung cap thong tin dang bieu do chi tiet nhat trong nhung phan mem mien phi hien nay, bao gom Timecourse AP, AP Differential, Channel Usage, Channel Timecourse, Channel Heatmap, va Channel Spectrogram. Phan mem nay co the ghi lai du lieu trong mot khoang thoi gian dai de xem lai sau do, ban cung co the tao cac bao cao rat huu dung theo dinh dang PDF, bao gom ban sao thong tin chi tiet va cac bieu do cua AP.

5. Kismet

5.jpg

Kismet la phan mem ma nguon mo rat noi tieng, chuyen phan tich, bat goi tin va phat hien xam nhap, chay tren cac he dieu hanh Windows, MacOS X, Linux va BSD. Kismet hien thi thong tin chi tiet ve cac AP, bao gom ca SSID cua cac mang an, bao cao muc do nhieu, muc do nhieu tren tin hieu. Ban co the bat cac goi tin duoc truyen di qua mang khong day o dang tho va luu lai thanh file PCAP, tu do ban co the dung cac cong cu khac nhu Wireshark, TCPdump de phan tich tiep.

Tren Windows, Kismet chi hoat dong voi bo dieu hop AirPcap cua CACE do su han che trong cac trinh dieu khien cua Windows, tuy nhien tren MacOS va Linux, Kismet ho tro hau het cac bo dieu hop mang khong day.

6. Xirrus Wi-Fi Inspector

6.jpg

La phan mem nguon dong mien phi, cung voi viec hien thi thong tin chi tiet ve cac AP, Xirrus Wi-Fi Inspector cung cap bo Radar va hien thi mot bieu do theo tung quang 8 phut. Xirrus Wi-Fi Inspector cung hien thi tin hieu, dia chi cua cac ket noi hien tai. Ngoai ra, Xirrus Wi-Fi Inspector cung cap mot cong cu don gian cho phep ban kiem tra cac thanh phan chinh trong ket noi mang va lien ket den trang kiem tra toc do va chat luong ket noi.

Chuc nang xuat bao cao ho tro tao ban sao cac thong tin chi tiet cua AP thanh tap tin dinh dang CSV. Tuy Xirrus Wi-Fi Inspector khong cho phep luu ten AP, nhung ban co the tuy chinh mot so cau hinh, chang han: don vi tin hien (dBm hay %), phuong thuc RSSI, va tan so quet.

7. Meraki Wi-Fi Stumbler

7.jpg

La phan mem dang Web-based (giao dien web), co the su dung mien phi tren trang cua Meraki tai dia chi: http://tools.meraki.com/stumbler. Meraki Wi-Fi Stumbler ho tro hau het tat ca cac loai trinh duyet tren cac may tinh Mac, PC va co the chay o che do ngoai tuyen (offline). Meraki Wi-Fi Stumbler cung cap nhung thong tin co ban cua AP nhu: muc tin hieu, bieu do dang cot cho moi kenh.

Mot diem dang tiec la Meraki Wi-Fi Stumbler khong cho phep nguoi dung tuy bien va chi ho tro nhung chuc nang co ban nhu thong tin mang, tim kiem du lieu. Tuy nhien, day van la mot cong cu rat huu ich cho nhung ai muon kiem tra mang Wi-Fi ma khong muon cai dat bat ky mot cong cu nao.

8. KisMAC

8.jpg

Neu ban la nguoi dung Mac, co the KisMAC se huu ich cho ban, day la cong cu an ninh va phan tich rat tot. Gan tuong tu nhu Kismet, KisMAC co the tim duoc nhung mang Wi-Fi an. Ngoai tru chay tren he dieu hanh MAC OS, cac chuc nang cua KisMAC giong nhu Kismet.

Viet Bao (Theo ictnews)

Cac bai viet khac:

Tiep theo >>


^ Lên đầu trang ^


Copyright © 2006-2012 by VietBao.vn
Viet Bao Viet Nam - All Rights Reserved.