Wednesday, January 16, 2008

NETWORK SECURITY

Kursus : INSEP (SKIM INDUSTRIAL SKILLS ENHANCEMENT PROGRAM) - NETWORK SECURITY PROFESIONAL
Tempoh : 6 bulan [ 4 bulan Off the Job + 2 bulan On the Job)
Elaun : RM500
Alamat : KISMEC - Kedah Industrial Skills and Management Development Centre126,
Jln PKNK 1/1,Kawasan Perusahaan Sungai Petani,
08000 Sungai Petani,Kedah Darul Aman.

Tel : 604-4414619 / 604-4414621
Fax : 604-4414622 / 604-4427653

Tenaga Pengajar :
En Kamal

Pn. Munirah (Pembantu)






Erti rangkaian

SEBUAH sistem rangkaian komputer membabitkan dua buah komputer yangdihubungkan dengan media menggunakan talian terus atau talian telefon.

Manakala sistem rangkaian yang rumit atau kompleks bergantung kepada imaginasi masing-masing. Rangkaian komputer bermaksud semua nod seperti pelayan, stesen kerja, pencetak dan sebagainya dihubungkan diantara satusama lain dengan tujuan untuk berkongsi maklumat dan bahan.Sebarang maklumat yang adapada pihak A dapat disebarkan kepada pengguna lain dan pihak A juga dapat menerima maklumat dari pihak atau pengguna lain.


Rujukan - www.komputer.com.my/artikel/15032002.txt


Keselamatan Rangkaian Keselamatan

Secara umumnya adalah kombinasi semua mekanisma yang membenarkan orang-orang tertentu sahaja menggunakan sumber yang diingini. Manakala keselamatan komputer adalah penggunaan katalaluan(password) yang hanya membenarkan orang tertentu sahaja yang menggunakan. Terdapat juga satu konsep yang dinamakan keselamatan perimeter iaitu, sebelum sesorang itu dibenarkan masuk ke rangkaian dalaman untuk mencapai sumber komputer, maka mereka haruslah perkenalkan diri kepada peranti keselamatan perimeter seperti firewall atau modem katalaluan.

Rujukan - http://209.85.175.104/search?q=cache:0XCQoCjf_S0J:www.geocities.com/akramicro/tutorial/Firewall2.doc+%22maksud+keselamatan+rangkaian%22%2B%22komputer%22&hl=en&ct=clnk&cd=1&gl=my


Network security

Consists of the provisions made in an underlying computer network infrastructure, policies adopted by the network administrator to protect the network and the network-accessible resources from unauthorized access and the effectiveness (or lack) of these measures combined together.


Comparison with computer securitySecuring network infrastructure is like securing possible entry points of attacks on a country by deploying appropriate defense. Computer security is more like providing means of self-defense to each individual citizen of the country. The former is better and practical to protect the civilians from getting exposed to the attacks. The preventive measures attempt to secure the access to individual computers--the network itself--thereby protecting the computers and other shared resources such as printers, network-attached storage connected by the network. Attacks could be stopped at their entry points before they spread. As opposed to this, in computer security the measures taken are focused on securing individual computer hosts. A computer host whose security is compromised is likely to infect other hosts connected to a potentially unsecured network. A computer host's security is vulnerable to users with higher access privileges to those hosts.


Rujukan - http://en.wikipedia.org/wiki/Network_security

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