Dokumen ini menjelaskan model relasional basis data yang mencakup struktur data, integritas, dan manipulasi. Ditekankan bahwa data disajikan dalam tabel dengan atribut yang atomik, dan konsep penting seperti primary key, kardinalitas, dan transformasi dari model E-R ke relasional. Selain itu, dijelaskan juga jenis-jenis key dan relasi yang terkait dengan entitas dan keterhubungan antar relasi.
Web Uygulama G端venlii Ve G端venli Kod Gelitirme Eitim Notlar脹mNur Yesilyurt
油
Linux Yaz Kamp脹 2014 b端nyesinde gittiim Web Uygulam G端venlii Ve G端venli Kod Gelitirme Notlar脹m脹 i巽ermektedir.
En g端ncel hali her zaman Github 端zerinde olacakt脹r. En sal脹kl脹s脹 ordan edinmeniz olur.
Github repo linki: https://github.com/1zinnur9/wGuvenlik_LYK14
htop allows you to monitor processes and system resources. You can change the sorting order by pressing F6 and sort by memory or CPU usage with M or P. Pressing s starts strace to trace a process, and pressing F follows a highlighted process even if its order changes. Pressing l starts lsof to list open files, and pressing u shows processes opened by a specific user.
Dokumen ini membahas sistem kriptografi klasik termasuk sandi Caesar dan algoritma GCD. Sandi Caesar adalah sistem substitusi sederhana dengan operasi shift huruf sesuai kunci K. Algoritma GCD digunakan untuk menemukan faktor persekutuan terbesar dua bilangan bulat.
Bilgi G端venlii Akademisi taraf脹ndan haz脹rlanan, hedef sistem belli zaafiyetler ile ele ge巽irildikten sonra sistemdeki Kullan脹c脹lar脹n parolar脹n脹 nas脹l k脹r脹laca脹 anlat脹lm脹t脹r.
http://www.slideshare.net/AhmetGrel1/linuxa-giris-ve-kurulum
Bu d旦k端man linkte ki bir 旦nceki d旦k端man脹n devam脹d脹r.Bu sunumda Temel Linux Kullan脹m脹 ve Komutlar脹n脹 anlatmaya 巽al脹t脹m.inize yaramas脹 dileiyle iyi 巽al脹malar.Soru,g旦r端 ve 旦nerileriniz i巽in ahmetgurel.yazilim@gmail.com a mail atabilirsiniz.
Iraq's refinery sector, with a total output of 700,000 bbl/d and 8 operational refineries, is hindered by outdated technology and war damage. Major refineries include Doura, Basrah, and Baiji, with capacities needing significant investment for upgrades. New refinery projects are aimed at increasing capacities, including Karbala, Missan, and Nasiriyah, while existing facilities remain in poor condition.
Global energy demand is expected to increase over the next 20 years as the world population grows. Fossil fuels such as oil, gas, and coal will continue to make up the majority of global energy consumption, around 80% by 2035. Many countries and companies are dependent on fossil fuel imports to meet domestic energy needs. Turkey in particular relies heavily on imports to meet over 80% of its oil demand and nearly 100% of its natural gas demand. To improve energy security, Turkey and other countries will need to encourage domestic production and exploration activities as well as securing reserves internationally through state-owned and private companies.
Kenya and Niger both have opportunities for oil, gas, and renewable energy development. Kenya has significant geothermal potential concentrated along the Rift Valley, estimated at over 10,000 MW. The government is working to develop 5,000 MW of geothermal capacity in the next 20 years through partnerships with private investors. Niger has onshore oil production of over 6,000 bbl/day but no natural gas production. Both countries offer production sharing contracts for exploration and development of energy resources.
Dokumen ini membahas sistem kriptografi klasik termasuk sandi Caesar dan algoritma GCD. Sandi Caesar adalah sistem substitusi sederhana dengan operasi shift huruf sesuai kunci K. Algoritma GCD digunakan untuk menemukan faktor persekutuan terbesar dua bilangan bulat.
Bilgi G端venlii Akademisi taraf脹ndan haz脹rlanan, hedef sistem belli zaafiyetler ile ele ge巽irildikten sonra sistemdeki Kullan脹c脹lar脹n parolar脹n脹 nas脹l k脹r脹laca脹 anlat脹lm脹t脹r.
http://www.slideshare.net/AhmetGrel1/linuxa-giris-ve-kurulum
Bu d旦k端man linkte ki bir 旦nceki d旦k端man脹n devam脹d脹r.Bu sunumda Temel Linux Kullan脹m脹 ve Komutlar脹n脹 anlatmaya 巽al脹t脹m.inize yaramas脹 dileiyle iyi 巽al脹malar.Soru,g旦r端 ve 旦nerileriniz i巽in ahmetgurel.yazilim@gmail.com a mail atabilirsiniz.
Iraq's refinery sector, with a total output of 700,000 bbl/d and 8 operational refineries, is hindered by outdated technology and war damage. Major refineries include Doura, Basrah, and Baiji, with capacities needing significant investment for upgrades. New refinery projects are aimed at increasing capacities, including Karbala, Missan, and Nasiriyah, while existing facilities remain in poor condition.
Global energy demand is expected to increase over the next 20 years as the world population grows. Fossil fuels such as oil, gas, and coal will continue to make up the majority of global energy consumption, around 80% by 2035. Many countries and companies are dependent on fossil fuel imports to meet domestic energy needs. Turkey in particular relies heavily on imports to meet over 80% of its oil demand and nearly 100% of its natural gas demand. To improve energy security, Turkey and other countries will need to encourage domestic production and exploration activities as well as securing reserves internationally through state-owned and private companies.
Kenya and Niger both have opportunities for oil, gas, and renewable energy development. Kenya has significant geothermal potential concentrated along the Rift Valley, estimated at over 10,000 MW. The government is working to develop 5,000 MW of geothermal capacity in the next 20 years through partnerships with private investors. Niger has onshore oil production of over 6,000 bbl/day but no natural gas production. Both countries offer production sharing contracts for exploration and development of energy resources.
Soru 1) A donan脹mlar脹 nelerdir?
Soru 2) Kablosuz a ve g端venlii hakk脹nda yap脹lmas脹 gerekenler nelerdir?
Soru 3) 聴nternet Ortam脹nda kiilik haklar脹 ihlali nedir? 5651 Say脹l脹 Kanun nedir ve bu konuda salad脹脹 haklar nelerdir?
Soru 4) Ping, SSL, DNS, HOST, Routher, TCP/IP Protokolleri, OSI ve TCP/IP fark脹, Creative Commons Lisans脹, WAN nedir?
bu sunumda bu sorular脹n cevab脹n脹 bulacaks脹n脹z.
Bilgisayar alar脹 ve iletiimi hakk脹nda temel bilgilere sahip olmak m脹 istiyorsun. O zaman doru adrestesin, k脹sa 5 dakikal脹k 3-4 tane video var, emin ol s脹k脹lmazs脹n!
2. RFID G端venlik Problemleri
RFID ile ta脹nan bilgilerin iletiim an脹nda
巽al脹nmas脹n脹 salayan bir ka巽 sald脹r脹 巽eidi
unlard脹r:
* Fiziksel Ataklar
* Denial Of Service (DoS)
* Spoofing
* Kulak Misafiri Olmak
* Trafik Analizi
3. 1.Fiziksel Ataklar
Etiketin fiziksel olarak etkilenmesiyle yap脹lan
atak 巽eididir. Baz脹 t端rleri unlar脹d脹r:
* Probe Attacks
* Material Removal Through Shaped Charges
* Water Etching
* Radiation Imprinting
* Circuit Disruption
* Clock Glitching
5. 2.Denial of Service (DoS)
Bu sald脹r脹ya en iyi 旦rnek RF kanallar脹ndan
gelen sinyal bozma sinyalleridir. Al脹c脹n脹n
duyarl脹 olduu band aral脹脹nda y端ksek g端巽te
sinyal yay脹n脹 yaparak al脹c脹n脹n giri kat脹n脹n t端m
band i巽in bask脹lanmas脹n脹 salar ve al脹c脹y脹
sa脹rlat脹r脹r. Sinyal bozucu al脹c脹da se巽icilik ve
duyarl脹l脹k 旦zelliklerini hedef al脹r.
13. RFID Hacking
DEF CON 21 - Francis Brown - RFID Hacking
Live Free or RFID Hard:
https://www.youtube.com/watch?
v=duzpEtkmAnI
https://www.defcon.org/
14. RFID arp脹ma Problemi
Tek etiket 巽ok okuyucu
ok etiket tek okuyucu
Birden fazla okuyucunun ayn脹 frekans
aral脹脹n脹 kullanmas脹
En yayg脹n olan脹 birincisi
17. Olas脹l脹a dayal脹 protokol
veri ne zaman g旦nderilmesi gerekiyorsa o
zaman g旦nderilir
veri yolda carp脹maya yada bozulmaya
urad脹ysa rastgele secilen bir zamanda tekrar
g旦nderilir
18. XML aray端z端
Programlama aray端z端, iletiim i巽in komut-cevap
mesajlama protokol端n端 kullanan xml tabanl脹 bir
mesajlama aray端z端d端r
Komutun doru 巽al脹mas脹na bal脹 olmayarak client
taraf脹ndan g旦nderilen her komut, reader taraf脹ndan
cevaplan脹r
Hata varsa cevap olarak nedeni d旦nd端r端l端r
19. XML aray端z端
Her komut, reader taraf脹nda uygun bir kar脹l脹脹 olan
unique bir ID kullanmak zorundad脹r
Aray端z senkronik 巽al脹m脹yorsa bile cevaplar脹n doru bir
ekilde d旦nd端r端lmesi salan脹r
20. XML aray端z端
Cevap d旦nmesini beklemeden birden 巽ok komut
g旦nderebiliriz
Reader d端zenli bir ekilde cevap d旦nd端rme iini 端stlenir
Client taraf脹 uniq ID leri kullanarak cevaplar脹
ilikilendirmek zorundad脹r
21. XML aray端z端
Normal bir komutun cevap d旦nd端rme s端resi 5 saniyedir
Bu zaman a脹m脹 oluursa client uygulamas脹 bir uyar脹
mesaj脹 d旦nd端rebilir
setConfiguration ve readTaglds gibi komutlara cevap
d旦nd端r端lmesi 5 saniyeden fazla s端rebilir