Systems & Programming
Compile a Shell Script to a Binary with SHC
shc wraps a shell script in a compiled C binary that decrypts and re-runs it at runtime. It never becomes real machine code, and the decryption key ships inside the binary, so it obfuscates a script rather than securing it.
Networking & Infrastructure
Linux 雲伺服器初始化與安全加固：SSH、Fail2Ban 與防火牆
從檢查當前登入會話開始，完成普通管理員賬戶、SSH 金鑰、sudo、2FA、Fail2Ban 和臨時防火牆封禁等雲伺服器安全設定。