A hearing aid specialist, also known as a hearing instrument specialist, is a professional who evaluates people with hearing problems and chooses the best hearing aid to improve their condition. Hearing loss is frequently encountered among the elderly, but also in younger people.
For other uses, see SSH (disambiguation). Secure Shell (SSH) is a cryptographic network protocol for operating network services securely over an unsecured network. The best known example application is for remote login to computer systems by users.
SSH can refer both to the cryptographic network protocol and to the suite of utilities that implement that protocol. SSH uses the client-server model, connecting a secure shell client application, the end at which the session is displayed, with an SSH server, the end at which the session runs.