SSH remote - Revision history

Marek at 14:41, 12 September 2019

2019-09-12T14:41:31Z

Marek: /* Secure Shell */

2019-09-12T13:57:52Z

‎Secure Shell

Marek: /* SSH? Wait, Secure Shell?? */

2019-09-12T13:37:48Z

‎SSH? Wait, Secure Shell??

Marek: /* More Terms */

2019-09-12T13:35:04Z

‎More Terms

Marek: /* More Terms */

2019-09-12T13:33:43Z

‎More Terms

Marek: /* Essential Terms */

2019-09-12T13:33:28Z

‎Essential Terms

Marek at 13:32, 12 September 2019

2019-09-12T13:32:17Z

Marek at 13:26, 12 September 2019

2019-09-12T13:26:22Z

Marek: /* Context of Terms */

2019-09-12T13:24:26Z

‎Context of Terms

Marek: /* Context of Terms */

2019-09-12T13:16:53Z

‎Context of Terms

@@ Line 2: / Line 2: @@
 ==Where to start==
 Baby steps
@@ Line 18: / Line 17: @@
 * '''client''' - software client (program) the user is using on local system to connect to remote system
 * '''server''' - software server (service, program) the user is connecting to on remote system
 ===More Terms===
 * '''localhost''' - networking terminology where a computer system refers to itself with it
 *: '''local''' host != ''localhost''  :: for '''local''' host ''localhost'' means '''local''' host, for '''remote''' host ''localhost'' means '''remote''' host
 ==Secure Shell==
@@ Line 42: / Line 38: @@
 We'll be getting in touch with 3 of the above: native Linux CLU and Cygwin CLU for operating at a command line interface (CLI) and Bitvise SSH client for working under Windows when there is no Cygwin available.
 ===Password or Keys?===
 To access remote computer system one usually has to authenticate itself.
@@ Line 53: / Line 48: @@
 Depending on the remote server configuration, one or more of the above is required. Remote server may for example require both password and keys for authentication. Or it may disallow password and only allow keys.
 ===I have username and password but where do I get keys?===
 Easy. You make them.
 In this example We will use Cygwin command line interface running on Windows host.
 ===Setting up passwordless access to remote host===
 ==Remote desktop client==
 ==Is host localhost local or remote, after or before gateway (and where do ports fit in)?==
-Depends on point of view
+Depends entirely on the point of view.

← Older revision		Revision as of 13:57, 12 September 2019
Line 42:		Line 42:

	We'll be getting in touch with 3 of the above: native Linux CLU and Cygwin CLU for operating at a command line interface (CLI) and Bitvise SSH client for working under Windows when there is no Cygwin available.		We'll be getting in touch with 3 of the above: native Linux CLU and Cygwin CLU for operating at a command line interface (CLI) and Bitvise SSH client for working under Windows when there is no Cygwin available.
		+
		+	===Password or Keys?===
		+	To access remote computer system one usually has to authenticate itself.
		+
		+	Authentication methods are various:
		+	* the simplest where one provides an username and a password to the remote system
		+	* with SSH keys, so called public key authentication
		+	* with Kerberos/GSSAPI
		+	* more complex with security device(s), in example a smartcard or SecurID device
		+
		+	Depending on the remote server configuration, one or more of the above is required. Remote server may for example require both password and keys for authentication. Or it may disallow password and only allow keys.
		+
		+	===I have username and password but where do I get keys?===
		+
		+	Easy. You make them.
		+
		+	In this example We will use Cygwin command line interface running on Windows host.

	===Setting up passwordless access to remote host===		===Setting up passwordless access to remote host===

@@ Line 27: / Line 27: @@
 ===SSH? Wait, Secure Shell??===
-Yes, the ubiquitous three-letter acronym SSH means Secure Shell, the computer program one can use to securely connect to remote host command line.
+Yes, the ubiquitous three-letter acronym SSH means Secure Shell, the computer program one can use to securely connect to a remote host command line.
-Secure Shell comes in variety of looks and flavours, from a simple command line utility to bells'n'whistles packed graphical user interface programs.
+Secure Shell comes in a variety of looks and flavours, from a simple command line utility to bells'n'whistles packed graphical user interface.
 To list a few:
@@ Line 41: / Line 41: @@
+*
-We'll be getting in touch with 3 of the above: native Linux CLU and Cygwin CLU for operating at command line interface (CLI) and Bitvise SSH client for working under Windows when there is no Cygwin.
+We'll be getting in touch with 3 of the above: native Linux CLU and Cygwin CLU for operating at a command line interface (CLI) and Bitvise SSH client for working under Windows when there is no Cygwin available.
 ===Setting up passwordless access to remote host===

@@ Line 21: / Line 21: @@
 ===More Terms===
-* '''localhost''' - networking terminology where computer system refers to itself with it
+* '''localhost''' - networking terminology where a computer system refers to itself with it
 *: '''local''' host != ''localhost''  :: for '''local''' host ''localhost'' means '''local''' host, for '''remote''' host ''localhost'' means '''remote''' host

@@ Line 21: / Line 21: @@
 ===More Terms===
-* localhost - networking terminology where computer system refers to itself with it
+* '''localhost''' - networking terminology where computer system refers to itself with it
 *: '''local''' host != ''localhost''  :: for '''local''' host ''localhost'' means '''local''' host, for '''remote''' host ''localhost'' means '''remote''' host

@@ Line 11: / Line 11: @@
 </gallery>
 ===Essential Terms===
-* local - local computer, computing device or computing system the user is initiating connection or is connecting from
+* '''local''' - local computer, computing device or computing system the user is initiating connection or is connecting from
-* remote - remote computer, computing device or computing system the user is connecting to
+* '''remote''' - remote computer, computing device or computing system the user is connecting to
-* gateway - intermediary computer, computing device or computing system the user is using to connect from local system to remote system
+* '''gateway''' - intermediary computer, computing device or computing system the user is using to connect from local system to remote system
-* client - software client (program) the user is using on local system to connect to remote system
+* '''client''' - software client (program) the user is using on local system to connect to remote system
-* server - software server (service, program) the user is connecting to on remote system
+* '''server''' - software server (service, program) the user is connecting to on remote system
 ===More Terms===

@@ Line 6: / Line 6: @@
 ==Context of Terms==
-<gallery mode=traditional widths=400px>
+<gallery mode=traditional widths=450px heights=150px>
 File:local-remote.png|Simple connection
-File:local-gateway-remote.png|Complex connection
+File:local-gateway-remote.png|Complex, multi-hop connection
 </gallery>
 * local - local computer, computing device or computing system the user is initiating connection or is connecting from