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--- router_to_router_ssh [2023/05/23 17:33] – [Example] -change to subhead1-condense, formatting-make numbering continguous hogwild
+++ router_to_router_ssh [2023/05/23 18:06] – [Overview] -added subhead "Setting up/Eablishing a tunnel" hogwild
@@ Line 11: / Line 11: @@
   * As seen below, for switching wireless radio(s) on or off on a schedule (not shown).
- \\
+=====  Setting up/Establishing a Tunnel =====
 Follow these steps to generate a Keypair and establish an SSH tunnel:
-  - On the primary router (the one issuing SSH commands) generate a Keypair by typing the command: \\ "dropbearkey -t rsa -f ~/.ssh/id_dropbear" \\ \\ This will display a result similar to that shown below. Leave this window open, as you'll need it for step 2. \\ \\ \\ {{:pasted:20210921-152323.png}} \\ \\
+  - On the primary router (the one issuing SSH commands) generate a Keypair by typing the command: \\ "dropbearkey -t rsa -f ~/.ssh/id_dropbear" \\ \\ This will display a result similar to that shown below. Leave this window open, as you'll need it for step 2. \\ \\ {{:pasted:20210921-152323.png?744}} \\ \\
-  - Copy the Public key portion from the primary router and paste it into the “Authorized Keys” field in secondary router: \\ \\ {{:pasted:20210921-152415.png}} \\ \\
+  - Copy the Public key portion from the primary router and paste it into the “Authorized Keys” field in secondary router: \\ \\ {{:pasted:20210921-152415.png?739}} \\ \\
-  - Note that a pre-existing, and unrelated key was redacted above. \\ \\
+  - In the above screenshot, a pre-existing, unrelated key was redacted. \\ \\
-  - Now, connect to the secondary router via an SSH session (running on the primary router). The example below uses the //nvram// command to display the hostname. The first command string ("ssh root@192.168.10.1 nvram get lan_hostname")** **executes the command on the secondary router and then it [nvram get lan_hostname] is executed locally, on the primary router. \\ \\ \\ {{:pasted:20210921-152503.png}}
+  - Now, connect to the secondary router via an SSH session (running on the primary router).  \\ The example below uses the //nvram// command to display the hostname. \\ The first command string ("ssh root@192.168.10.1 nvram get lan_hostname")** **executes the command on the secondary router and then it [nvram get lan_hostname] is executed locally, on the primary router. \\ \\ \\ {{:pasted:20210921-152503.png?741}}
-===== Example =====
+ \\
+ \\
+===== Usage Example =====
 This example will enable/disable the eth1 5Ghz WiFi interface on the secondary router. (Temperature is shown only when the interface is enabled).  \\  \\
-  - This screenshot shows the status display of the Primary router before before the command is run: \\ \\ {{:pasted:20210921-152542.png}} \\ \\
+  - This screenshot shows the status display of the Primary router before before the command is run: \\ \\ {{:pasted:20210921-152542.png?736}} \\ \\
-  - Now, we run execute the command (//ssh root@192.168.10.1 radio toggle 1//): \\ \\ {{:pasted:20210921-152607.png}} \\
+  - Now, we run the command (//ssh root@192.168.10.1 radio toggle 1//): \\ \\ {{:pasted:20210921-152607.png?744}} \\ \\
-  - This shows the status display after the command is run. \\ {{:pasted:20210921-152637.png}} \\  \\ If the same command is repeated, the eth1 interface will be disabled on the primary router.
+  - This shows the status display after the command is run: \\ \\ {{:pasted:20210921-152637.png?761}} \\  \\ Since "radio toggle 1" is  a toggle switch, if the same command is repeated, the eth1 interface will be disabled on the primary router.
+\\
+ \\
 ===== Notes =====
-  * SSH must be enabled on both routers.
+  * The SSH daemon must be enabled on both routers.
-  * The key generated will be erased after a reboot of the primary router.
+  * The key generated will be erased after a reboot of the Primary router.
     * Either keep a copy of the "id_dropbear" file offline (on a flash drive, or CIFS Client share) for restoration, or;
-    * Be prepared to repeat the procedure (steps 1 and 2) after a reboot, removing any redundant key from the secondary router.
+    * Be prepared to repeat (steps 1. and 2.) after a reboot, removing any redundant key from the secondary router.
   * This guide was produced using [[https://www.chiark.greenend.org.uk/~sgtatham/putty/|PuTTY]] v0.76 and FreshTomato release 2021.5.
   * Inspiration was provided by [[https://blog.michael.franzl.name/2017/09/03/set-passwordless-ssh-login-dropbear-client/|this]] article.

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