Encrypt file with AES-256 openssl
Password-encrypt a file with AES-256-CBC + PBKDF2
openssl enc -aes-256-cbc -pbkdf2 -in secret.txt -out secret.enc
more openssl
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Decrypt AES-256 file
openssl enc -d -aes-256-cbc -pbkdf2 -in secret.enc -out secret.txt
Generate random hex token
openssl rand -hex 32
Full certificate inspect
openssl x509 -in cert.pem -noout -text
Cert expiry check (CI gate)
openssl x509 -in cert.pem -noout -checkend 86400 && echo OK || echo EXPIRING
Inspect live server chain
openssl s_client -connect <host>:443 -servername <host> -showcerts </dev/null 2>/dev/null