반응형 <개인공부> - IT/[Network&Security]28 NAT - Inside local, inside global, outside local, outside global In this post, I briefly summary NAT terms which are inside local, inside global, ouside local, and outside global. I would like to elaborate the terms using the ablove topology. ip nat inside source static 10.10.10.1 171.16.68.5 interface s 0 ip nat inside interface s 1 ip nat outside In order to verify the NAT tranlations, we can use show ip nat translations command. If you look at the output a.. 2020. 7. 18. Dynamic Trunking Protocol (DTP) Dynamic Trunking Protocol (DTP)는 시스코 전용 프로토콜로 두 스위치 간 trunking mode를 협상하는데 사용된다. Interface는 trunking, nontrunking, 그리고 negotiate trunking 형태로 설정할 수 있다. 마지막 negotiate trunking 방식이 DTP에 의해서 처리된다. 우선, switchport mode의 option으로는 아래와 같이 크게 3가지가 존재하는데 access: interface를 항상 지정된 VLAN만 사용 dynamic: access/trunk 여부를 DTP를 이용하여 결정 trunk: interface를 항상 trunking port로 사용 S1과 S2는 항상 trunk mode 상태를 유지한다. 반대로 S1과.. 2020. 4. 17. XSS vs CSRF XSS stands for Cross-site scripting. CSRF stands for Cross-site request forgery. Basically, in case of that, a user trusts a website which has vulnerabilities and an attacker injects a script into the trusted website. Upon executing the attacker's script this is called by XSS. On the other hand, in case of that, a website trusts the user and attacker induce the user to perform an action which is.. 2019. 8. 28. Security Engineer (Analyst) Intern Interview Questions 1. What is an antivirus and why antivirus needs for organizations?2. Explain Vulnerability, Risk, and Threat3. What is DDoS and how to mitigate?4. Explain Asymmetric and Symmetric encryption?: Follow up questions - If I focused on the speed, symmetric is better or asymmetric is better? Tell me the reasons5. Tell me Hashing, Encryption, and Encoding?6. Explain IDS and IPS7. What is a firewall?8. .. 2019. 2. 19. 이전 1 ··· 4 5 6 7 다음 반응형
