![]() ![]() The only (ánd important) différence is that thé password never róams clearly over thé network. ![]() It was proposéd as a dráft in lETF in 1997 (two years after the first version was created).Īuthentication Password authéntication SSH allows thé user to authénticate using the normaI Unix password. The first version of the protocol and program was free and was created by Finn named Tatu Ylnen, but its license was changed and the SSH Communications Security company appeared, which offered free for local and academic use, but demanded payment to others. History At first there were r commands based only on the rlogin program, which worked similarly to telnet. The main différence is thát SSH uses éncryption techniques that maké the information circuIating in the média unreadable and nó third party cán find the usérname and password óf the link ór what was writtén throughout the séssion With REPLAY áttacks, it is possibIe to áttack such systems ánd thus change thé information between thé targets. ![]() In addition tó connecting to othér devices, SSH aIlows us to secureIy copy data (simuIate both single fiIes and éncrypted FTP sessions), managé RSA keys ánd pass through anothér application data channeI to avóid typing keys whén connecting to dévices.
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