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Denial-of-service attack

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In computing, a denial-of-service (DoS) attack is an attempt to make a machine or network resource unavailable to its intended users, such as to temporarily or indefinitely interrupt or suspend services of a host connected to the Internet. A distributed denial-of-service (DDoS) is where the attack source is more than one, often thousands of, unique IP addresses. It is analogous to a group of people crowding the entry door or gate to a shop or business, and not letting legitimate parties enter into the shop or business, disrupting normal operations.

Criminal perpetrators of DoS attacks often target sites or services hosted on high-profile web servers such as banks, credit card payment gateways. Motives of revenge, blackmail or activism can be behind other attacks.

The scale of DDoS attacks has continued to rise over recent years, even reaching over 400Gbit/s

Symptoms
The United States Computer Emergency Readiness Team (US-CERT) defines symptoms of denial-of-service attacks to include:

  • Unusually slow network performance (opening files or accessing web sites)
  • Unavailability of a particular web site
  • Inability to access any web site
  • Dramatic increase in the number of spam emails received (this type of DoS attack is considered an e-mail bomb)[7]
  • Disconnection of a wireless or wired internet connection
  • Long-term denial of access to the web or any internet services
  • If the attack is conducted on a sufficiently large scale, entire geographical regions of Internet connectivity can be compromised without the attacker's knowledge or intent by incorrectly configured or flimsy network infrastructure equipment.

Wikipedia

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Tawaran Khas untuk lepasan SPM/STPM/STAM/Diploma/Matrikulasi/Asasi Sempena Ulang Tahun ke 20 ICYM

  1. Biasiswa Penginapan dan Pengangkutan bagi Program Diploma dan Ijazah
  2. Pembiayaan/Penajaan Penuh daripada PTPK bagi Program Sijil

Permohonan:

Langkah 1, Biasiswa - Klik Sini
Langkah 2Pilih Program

Foundation / Diploma Foundation In Information Technology Foundation In Management Diploma In Entrepreneurship Diploma In Marketing Diploma In Accountancy Diploma In Islamic Financial Planning Diploma In Culinary Arts Diploma In Hotel Management Diploma In Tourism Management Diploma In Animation Technology Diploma In Media Technology Diploma In Theatrical Arts And Technology Diploma In Multimedia Technology Diploma In Information Technology Diploma In Computer Networking Diploma In Cyber Security Diploma In Electrical Technology Diploma In Industrial Electronic Technology Diploma In Early Childhood Education Diploma In Guidance & Counseling Diploma In Aircraft Maintenance Technology Kerjasama Universiti Teknologi Malaysia Diploma In Technology Management (UTM) Diploma In Technology Management (Accounting) (UTM) Diploma In Computer Science (Information Technology) (UTM) Sarjana Muda Sains (Pembangunan Sumber Manusia) (UTM) Sarjana Muda Pengurusan (Pemasaran) (UTM) Sarjana Muda Sains Komputer (Perisian Grafik & Multimedia) (UTM) Sarjana Muda Sains Komputer (Rangkaian & Keselamatan) (UTM) Professional License Aircraft Maintenance License Technician (AML-T) DCAM-PT-66 CAT A1 Aircraft Maintenance License Engineer (AML-E) DCAM-PT-66 CAT B1-1 Sijil Kemahiran Malaysia (SKM) / Short Course Lukisan Pelan Senibina / Juruteknik Elektrik / Teknologi Automotif / Pembuatan Pastri Program Tajaan Ground Handling Management (GHM) PTPTN Bahagian Pengurusan Kemasukan Pelajar UPU KWSP YAYASAN PENERAJU UPEN PTPK TAPEM YAYASAN NEGERI ZAKAT MARA UNIVERSITI ISLAM ANTARABANGSA MALAYSIA (IIUM) UNIVERSITI KEBANGSAAN MALAYSIA (UKM) UNIVERSITI KEBANGSAAN MALAYSIA (UKM) UNIVERSITI MALAYA UNIVERSITI MALAYSIA KELANTAN (UMK) UNIVERSITI MALAYSIA PAHANG (UMP) UNIVERSITI MALAYSIA PERLIS (UNIMAP) UNIVERSITI MALAYSIA SABAH (UMS) UNIVERSITI MALAYSIA SARAWAK (UNIMAS) (KOTA SAMARAHAN) UNIVERSITI MALAYSIA TERENGGANU (UMT) UNIVERSITI PENDIDIKAN SULTAN IDRIS (UPSI) UNIVERSITI PERTAHANAN NASIONAL MALAYSIA UNIVERSITI PUTRA MALAYSIA (UPM) UNIVERSITI SAINS ISLAM MALAYSIA (USIM) UNIVERSITI SAINS MALAYSIA (USM) UNIVERSITI SULTAN ZAINAL ABIDIN (UNISZA) UNIVERSITI TEKNIKAL MALAYSIA MELAKA (UTEM) UNIVERSITI TEKNOLOGI MALAYSIA (UTM) UNIVERSITI TEKNOLOGI MARA UNIVERSITI TUN HUSSEIN ONN MALAYSIA (UTHM) UNIVERSITI UTARA MALAYSIA (UUM)

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  • ong 65e06Throughout my studies in ICYM, I have encountered many challenges and obstacles. However, I was lucky enough to be given the opportunity to gain knowledge here and also to engage in co-curriculum activities organized by the college. For me, ICYM is the best choice. 

    Ong Wei Sin • Diploma in Marketing • Best Student

  • fadzlina c3e6cI think ICYM has done a great job, especially during my student’s life in campus. I like the multi-cultural environment in ICYM that depicts the feel of 1 Malaysia. During my studies in ICYM, I have became more confident, able to improve my skills and possessed the sense of believing my self. As a whole ICYM was able to overtime any locking. I will definitely introduce ICYM to my friends.

    Nor Fadzlina Mukhtar • Diploma in Network Technology  Best Student

  • asyrafabMy learning experience in ICYM was very good and interesting and I can learn a lot about animation technology. Lectures in ICYM are very experienced in this industry compared to other colleges. They taught us all the knowledge about animation so the that we can improve our experience in the animation industry today.

    Mohd Asyraf Abd Rahman • Diploma in Animation, Lead Animator, Les’ Copaque Production

  • leekamThere is always a motivating environment in ICYM drives me to success. Spending time together with lectures and friends enable us to learn our own mistakes. Learning experience has turned me into an all-rounded individual. It was an extraordinary experience for me.

    Lee Kam Shann • Diploma in Multimedia Technology Best Student

  • asyrafI am grateful to be given the opportunity to study in ICYM as I am able to increase my knowledge in Animation, theoretically and practically. ICYM is definitely the right choice for those who want to learn in the field of Animation because the college has provided the complete and conducive environment for learning as well as practical experiences. 

    Asyraf Abdullah • Diploma in Animation Technology ,Senior Render Artist & Technical Manager, Les’ Copaque Production

  • intanBecoming an ICYM graduate is a prestigious acknowledgement. I would like to thank all my lecturers for their dedications and self esteems, as well as having the reputation as honourable academicians and educators. I am really touched by their personality and professionalism shown. Thank you for guiding and transforming us for what we are today.

    Intan Safinas Haji Abdul Samat • Diploma in Media Technology Executive, Education & Training