Musings of a geek

• AWS EC2: Automated setup for disabling NOPASSWD sudo
  15 May 2024 #aws#ec2#security#linux

  Automated solution for setting up passwords for default users and root account on EC2 using AWS CLI and Parameter Store to disable sudo without password.

• Using Android device as a high resolution webcam on Linux
  16 Apr 2024 #linux#android#scrcpy

  How to use an Android smartphone as a high resolution webcam on Linux using v4l2loopback and scrcpy.

• Python pip: Speed up package installations
  3 Apr 2024 #python#pip

  How to speedup package installation when using Python pip.

• Self-hosted SAST for PHP using phpcs-security-audit
  27 Mar 2024 #sast#security#php#docker

  Deploy a local docker container to scan all your PHP repositories for security vulnerabilities using phpcs-security-audit.

• Searching AWS WAF logs on CloudWatch
  26 Mar 2024 #aws#waf#cloudwatch#security

  How to query AWS WAF logs in CloudWatch to understand why legitimate traffic is being blocked by managed rule sets.

• Useful curl commands to test AWS WAF
  26 Mar 2024 #aws#waf#security#curl

  How to use curl to test AWS WAF functionality such as XSS, size restrictions and user agent restrictions.

• Configuring iptables to work with GeoIP
  30 Apr 2023 #linux#iptables#security#networking

  How to block traffic by country on Debian using iptables and the xt_geoip module with a MaxMind GeoLite2 database.

• Disabling IPv6 on Linux using sysfs
  29 Apr 2023 #linux#networking

  A quick way to disable IPv6 on Linux persistently using sysctl.

• Installing Lineage OS on Mi device
  29 Apr 2023 #android#lineageos

  Steps to flash LineageOS onto a Xiaomi Mi device using adb, fastboot, and TWRP recovery.

• Linux: Configure power button to lock the screen
  29 Apr 2023 #linux#i3

  Configure the power button to lock the screen on i3 using systemd-logind and xss-lock.