Answer: Canned salmon has quite a long shelf life for canned food products. If you have already purchased a can of salmon check the label on the can to determine the actual manufacturers recommended shelf life. A good rule of thumb is that generally a canned salmon product has a shelf life of about six years. This could be increased if the pantry has low humidity and is quite dry and the can has not been compromised, rusted or otherwise damaged.
SSL (Secure Sockets Layer) is the standard security technology for establishing an encrypted link between a web server and a browser. This link ensures that all data passed between the web server and browsers remain private and integral.
TLS (Transport Layer Security) is just an updated, more secure, version of SSL. We still refer to our security certificates as SSL because it is a more commonly used term, but when you are buying SSL from Symantec you are actually buying the most up to date TLS certificates with the option of ECC, RSA or DSA encryption.