OpenSSL Cheat-sheet
Generate random bytes
openssl rand -base64 512
openssl rand -hex 512
openssl rand -base64 -out myFile.key 512
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NPM Cheat-sheet
Update NPM version
npm install -g npm@8.1.4
Pack project into tarball (run at package.json level)
npm pack
Install project from tarball globally
npm install -g projectName-1.0.0.tgz
Uninstall project globally
npm uninstall -g projectName
Set proxy configuration
npm config set proxy http://username:password@
Kali Cheat-sheet
NMAP: Scan IP address for open ports
# Basic scan:
nmap -sT 1.2.3.4
# RPC service scan:
nmap -sR 1.2.3.4
NMAP: Scan network hosts up
nmap -sP 192.168.0.0/24
NMAP: List network's hostnames
nmap -sL 192.168.0.0/24
NMAP: Network scan
Nginx Cheat-sheet
Management commands
systemctl start nginx
systemctl stop nginx
systemctl restart nginx
Check configuration syntax and test it
nginx -t