keytool error bash: keytool: command not found

These are the steps which solved my problem:

• Search the path where my java was installed

  find / -name jre
  

• Move to java directory (where jre was installed on my server)

  cd /path/to/jre/bin
  

• Create SSL certificate with keytool command

  ./keytool -genkey -alias [mypassword] -keyalg [RSA]
  

Use

./keytool -genkey -alias mypassword -keyalg RSA