-CA filename. specifies the CA certificate to be used for signing. When this option is present x509 behaves like a mini CA. The input file is signed by this CA using this option: that is its issuer name is set to the subject name of the CA and it is digitally signed using the CAs private key.
Signs and symptoms[edit] Tension-type headache pain is often described as a constant pressure, as if the head were being squeezed in a vise. The pain is frequently present on both sides of the head at the same time. Tension-type headache pain is typically mild to moderate, but may be severe.
Tension headaches produce mild to moderate levels of diffuse pain distributed around the head in a band-like pattern that includes the back of the head and base of the neck. Tension headaches may also result from changes among certain brain chemicals, such as serotonin and endorphins, which activate pain pathways and interfere with the brain's ability to suppress pain.