-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.
A tension headache is the most common type of headache. It is pain or discomfort in the head, scalp, or neck, and is often associated with muscle tightness in these areas. Tension headaches occur when neck and scalp muscles become tense, or contract. The muscle contractions can be a response to stress, depression, head injury, or anxiety. They may occur at any age, but are most common in adults and older teens.