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CentOS 8 네트워크 설정

CentOS 8 부터는 systemd의 network.service가 아닌 NetworkManager 서비스의 nmcli command로 네트워크 관리 - 네트워크 확인 # nmcli dev status # nmcli con show # ip addr show eth0 - 네트워크 재시작 # nmcli con reload - 네트워크 인터페이스 활성화 # nmcli con up ens192 - 네트워크 인터페이스 비활성화 # nmcli con down ens192 - 네트워크 인터페이스 삭제 # nmcli con del ens192 - 네트워크 연결 수정 # nmcli con modify ens192
IT/System & Network 2020. 3. 19. 11:58
iptables 를 이용한 remote port forwarding

remote 서버의 특정 포트로 redirect 가 필요한 경우, 중계 서버를 아래와 같이 설정 => => # echo "1" > /proc/sys/net/ipv4/ip_forward # sysctl -w net.ipv4.ip_forward=1 - iptables 설정 # nat chain에 추가 -A PREROUTING -p tcp --dport -j DNAT --to-destination : -A POSTROUTING -j MASQUERADE # filter chain 의 INPUT, FORWARDING 설정 -A INPUT -p tcp --dport -j ACCEPT -A FORWARD -i eth0 -j ACCEPT -A FORWARD -o eth0 -j ACCEPT
IT/System & Network 2020. 3. 16. 16:55
리눅스 바이너리 취약점 분석 관련

Modern Binary Exploitation (CSCI 4968 - Spring '15) http://security.cs.rpi.edu/courses/binexp-spring2015/ https://github.com/RPISEC/MBE
IT/Security 2020. 3. 1. 22:00
VMware ESXi 간단한 VM Copy script

#!/bin/sh echo -e "OLD : \c" read OLD echo -e "NEW : \c" read NEW mkdir /vmfs/volumes/datastore1/${NEW} vmkfstools -i "/vmfs/volumes/datastore1/${OLD}/${OLD}.vmdk" "/vmfs/volumes/datastore1/${NEW}/${NEW}.vmdk" cp /vmfs/volumes/datastore1/${OLD}/${OLD}.vmx /vmfs/volumes/datastore1/${NEW}/${NEW}.vmx cp /vmfs/volumes/datastore1/${OLD}/${OLD}.vmxf /vmfs/volumes/datastore1/${NEW}/${NEW}.vmxf cp /vmfs..
IT/System & Network 2020. 2. 13. 14:56
httpie 기본 테스트

출처: https://httpie.org/doc HTTPie 2.0.0 (latest) documentation CLI HTTP that will make you smile. JSON support, syntax highlighting, wget-like downloads, extensions, and more. httpie.org https://httpie.org/#installation Custom HTTP method, HTTP headers and JSON data: $ http PUT example.org X-API-Token:123 name=John Submitting forms: $ http -f POST example.org hello=World See the request that is ..
IT/Programming 2020. 2. 13. 11:40
OpenVAS 9 설치 in Ubuntu 18.04

$ sudo add-apt-repository ppa:mrazavi/openvas $ sudo apt update -y $ sudo apt upgrade -y $ apt install sqlite3 openvas9 -y
IT/Security 2019. 12. 5. 17:31
Google Apps Script 관련

https://github.com/gsuitedevs/apps-script-samples https://www.benlcollins.com/apps-script/google-apps-script-beginner-guide/
IT/System & Network 2019. 9. 26. 18:41
Pentesting iOS apps without jailbreak

https://medium.com/securing/pentesting-ios-apps-without-jailbreak-91809d23f64e https://medium.com/@ansjdnakjdnajkd/dynamic-analysis-of-ios-apps-wo-jailbreak-1481ab3020d8
IT/Security 2019. 9. 25. 16:23
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