Create SSH tunnel

Forward local port 8080 to an internal host via bastion

ssh -L 8080:internal-service:80 user@bastion -N -f
tool
linux133 commands
tags
linuxnetwork

More linux commands

  • Extract tar.gz
    tar -xzf archive.tar.gz -C /target/dir/

    Extract a gzipped tar archive to a specific directory

  • Generate random password
    openssl rand -base64 32

    Cryptographically secure random 32-byte password

  • Check certificate details
    openssl s_client -connect example.com:443 </dev/null 2>/dev/null | openssl x509 -noout -dates -subject

    Show cert expiry and subject for a live TLS endpoint

  • Awk — sum a column
    awk '{sum += $3} END {print sum}' file.txt

    Sum the 3rd column of a space-delimited text file

  • Sed — replace in file
    sed -i 's/old-string/new-string/g' file.txt

    In-place global string replacement

all 133 linux commands