Changes for page Remote Access Gateway

Last modified by Kilight Cao on 2022/07/25 10:47

From version 1.1 >

edited by Xiaoling
on 2022/05/12 13:49

To version < 2.3 >

edited by Xiaoling
on 2022/05/12 14:15

Change comment: There is no comment for this version

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--{{box cssClass="floatinginfobox" title="**Contents**"}}
++     **Contents:**
++
  {{toc/}}
--{{/box}}
--= Paragraph 1 =
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++= 1. Use Remote.it service =
--== Sub-paragraph ==
++Remote.it for remote access is available in the latest Dragino firmware for gateway. For security concern, the remote.it only available base on end user demand.
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++(% class="mark" %)**Important Notice:**
--== Sub-paragraph ==
++* (% class="mark" %)**Remote.it access will give full control of your device to remote support.**
++* (% class="mark" %)**The Remote.it allow Dragino Support to remote access to the device, If user want to access himself, it need to sign up for an remote.it account.**
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++For how to use remoteit, please see : [[Remoteit user instruction for Dragino Gateway>>url:https://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/&file=Dragino-Remoteit_User_Manual.pdf]].
--=== Sub-sub paragraph ===
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++= 2. RSSH Introduction =
++Reverse SSH for remote access is available in the latest Dragino firmware for gateway. For security concern, the RSSH only available base on end user demand.
--= Paragraph 2 =
++(% class="mark" %)**Important Notice:**
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++* (% class="mark" %)**RSSH access will give full control of your device to remote support. Please remove sensitivity info before perform this**
++* (% class="mark" %)**This RSSH allow Dragino Support to remote access to the device, If user want to access himself, he need to set up the RSSH server himself.**
--== Sub-paragraph ==
++Below gateway support reverse SSH access:
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++* Firmware Version > LG02_LG08-5.3.1580178039 [[Firmware Download>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/LPS8/Firmware/Release/]]
++* LG01N, OLG01N (Note: LG01-P LG01-S doesn't support)
++* LG02, OLG02
++* LG308, DLOS8
++* LPS8
++* LIG16
++* MS14 series if installed with the same firmware.
--== Sub-paragraph ==
++== 2.1 For Firmware Version lower than lgw~-~-build-v5.4.1616478814-20210323-1355 ==
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++=== 2.1.1 End User Guide to use SSH access ===
++
++Go to this the Reverse SSH page as below:
++
++[[image:https://wiki.dragino.com/images/thumb/5/55/RSSH_Menu2.png/500px-RSSH_Menu2.png||height="256" width="500"]]
++
++Get the RSSH configure page
++
++
++[[image:https://wiki.dragino.com/images/thumb/7/78/RSSH_Menu3.png/500px-RSSH_Menu3.png||height="313" width="500"]]
++
++Connection OK.
++
++* (% class="mark" %)**Login ID**(%%): Input (% class="mark" %)**sshuser**
++* (% class="mark" %)**Host Address**(%%): Input(% class="mark" %)** support.dragino.com**
++* (% class="mark" %)**Host Port**(%%): Please email to support @ dragino.com to get a valid host port.
++* (% class="mark" %)**Connect at Startupt**(%%): Choose to enable connect once device is powered.
++* (% class="mark" %)**Network Keys:**(%%)Click the Generate keys to generate the keys and download / mail it to Dragino support so Dragino can prepare the remote access to
++
++(((
++After doing above, please download and mail the public keys to Dragino support and wait for our mail for the valid host port. Input the valid host port got from our support and click connect so we can remote access to your gateway.
++)))
++
++
++=== 2.1.2 How to Ser up a Reverse SSH access ===
++
++Advance administrator can config a SSH server to provide support their end user themselves. Instruction is as below:
++
++1. Prepare a Linux server with public IP. The gateways need to be able to create SSH connection to this server. We recommend to use a server that performs no other function than to support the RSSH access, and to have no additional accounts active, and no access from the Internet that uses ID/password authentication.
++1. In the gateway settings, The (% class="mark" %)**Login ID**(%%) will be the SSH user for this server and the (% class="mark" %)**Host Address**(%%) is the server address.
++1. Ask your end user to send you the key generate in the gateway and put them in /home/<Login ID>/.ssh/authorized_key file.
++1. Give a free port to the user and ask them to configure RSSH page in the gateway.
++1. In your server or other machine, you will able to access to the end user device by below command:
++
++{{{  $ ssh   -p <End User Host Port>   root@<Host Address>
++}}}
++
++(% class="mark" %)**Remote RSSH Access allow the gateway to connect to SSH server as well. This will create risk to the RSSH server. Please make sure the account use for Gateway Access has the lowest access right.**
++
++
++==== 2.1.2.1 Note for set up RSSH server ====
++
++* If gateway reboot or the connection is incidentely close by end node. The port in SSH server will still be occupy for a long time. Administrator can use below commands to release the port.
++
++{{{[root@iZt4n22vqvm7ajogrfiif6Z ~]# lsof -i :9102         --> check the port 9102 process status (change 9102 to the actually port for your gateway.
++COMMAND   PID    USER   FD   TYPE   DEVICE SIZE/OFF NODE NAME
++sshd    21430 sshuser   15u  IPv4 47567059      0t0  TCP localhost:bacula-fd (LISTEN)
++[root@iZt4n22vqvm7ajogrfiif6Z ~]# kill 21430            --> Kill PID of this process.
++[root@iZt4n22vqvm7ajogrfiif6Z ~]# lsof -i :9102
++[root@iZt4n22vqvm7ajogrfiif6Z ~]#
++}}}
++
++== 2.2 For Firmware Version higher than lgw~-~-build-v5.4.1618196981-20210412-1111 ==
++
++Below gateway support reverse SSH access:
++
++{{{   Firmware Version >lgw--build-v5.4.1618196981-20210412-1111 Firmware Download
++   LG01N, OLG01N (Note: LG01-P LG01-S doesn't support)
++   LG02, OLG02
++   LG308, DLOS8
++   LPS8
++   LIG16
++}}}
++
++=== 2.2.1 End User Guide to use SSH access ===
++
++==== 2.2.1.1 Install the SSH service for server ====
++
++===== 2.2.1.1.1 Step 1:Download the SSH service code =====
++
++1).git clone [[https:~~/~~/github.com/dragino/rssh-server.git>>url:https://github.com/dragino/rssh-server.git]] rssh-server
++
++[[image:https://wiki.dragino.com/images/thumb/d/d0/Git_clone.png/500px-Git_clone.png||height="80" width="500"]]
++
++git clone rssh-server
++
++2).cd rssh-server; sudo make ~-~--> to Generate the execute file：rssh_serv
++
++[[image:https://wiki.dragino.com/images/thumb/e/e3/Generate_the_execute_file.png/500px-Generate_the_execute_file.png||height="103" width="500"]]
++
++Generate the execute file
++
++**Debug** :
++
++{{{ if you git fail.     -->    sudo: git: command not found.
++ please install git.  -->    yum install git -y  or  apt-get install git -y.
++}}}
++
++{{{ if you make error 127,it lack of gcc.
++ please install gcc.    -->yum install gcc.
++}}}
++
++[[image:https://wiki.dragino.com/images/d/d7/Lack_of_gcc.png||height="174" width="434"]]
++
++lack of gcc
++
++{{{ if you make a fatal error : sqlite3.h,it lack of sqlite3.
++ please insatell sqlite3.
++}}}
++
++[[image:https://wiki.dragino.com/images/thumb/9/93/Lack_of_sqlite3.png/500px-Lack_of_sqlite3.png||height="137" width="500"]]
++
++lack of sqlite3
++
++How to install Sqlit3
++
++{{{ Step1:Download the SQLit3 installation package
++           sudo wget
++ Step2:tar the SQLit3 installation package
++           sudo tar -zxvf sqlite-autoconf-3350300.tar.gz
++ Step3:Generate the makefile
++           cd sqlite-autoconf-3350300/;./configure
++ Step4:Compile makefile
++           sudo make
++ Step5:Install makefile
++           sudo make install
++ Check:
++           cd /usr/local/bin;ls -al                             -->    Check to see if there is a file for sqlite3
++           cd sqlite-autoconf-3350300/;./sqlite3 test.db        -->    Test whether the sqlite3 was installed successfully
++ debug:
++          If you get the imformation that is SQLite header and source version mismatch, when you execute./sqlite3 test.db.
++          Please execute the command /sbin/ldconfig.
++          After that execute the command ./sqlite3 test.db again.
++}}}
++
++===== 2.2.1.1.2 Step 2 :Install and run the RSS service =====
++
++1):intall database for /var/rsshdb.sqlite3 and Server development port for 3721(The default is 3721)
++
++user must enter the root account and run the following commands
++
++{{{ $ ./create_sqlite3_db.sh
++ $ ./rssh_serv -p  3721 2>&1 &
++ $ ps -ef | grep rssh_serv check 3721 port
++}}}
++
++[[image:https://wiki.dragino.com/images/thumb/c/cb/Intall_database_and_server_development_port.png/500px-Intall_database_and_server_development_port.png||height="70" width="500"]]
++
++intall database and server development port
++
++**Debug:**
++
++{{{ Check /var/rsshdb.sqlite3 --> ls /var/rsshdb.sqlite3
++ Check ls /var/rsshdb.sqlite3 --> sudo chmod 777 rssh_serv
++}}}
++
++{{{ if fail to open dpvlry or to bind to it
++ please kill rssh_serv,and run  ./rssh_serv -p  3721 2>&1 &  again
++}}}
++
++===== 2.2.1.1.3 Step 3 :Create a minimal SSH user (reverse SSH proxy for the gateway) =====
++
++1):sudo useradd XXXXX (custom user name)
++
++2):sudo passwd xxxxxx
++
++3):cp /bin/bash /bin/rbash
++
++4):sudo nano /etc/passwd ~-~-> Change /bin/bash to /bin/rbash
++
++5):sudo nano /home/xxxxx/.bashrc **empty it,and input export PATH=$HOME/bin**
++
++6):sudo nano /home/xxxxx/.bash_profile **empty it,and input export PATH=$HOME/bin**
++
++**Now user "XXXXX" is the user with limited permissions of the current system**
++
++=== 2.2.2 How does user get the gateway to connect to a user's private server ===
++
++===== 2.2.2.1 Step1: Come bace the gateway web UI for get the gateway Public key =====
++
++1)in the system ~-~-> Remote Mgmt/span>
++
++[[image:https://wiki.dragino.com/images/thumb/8/8f/Remote_Mgmt.png/500px-Remote_Mgmt.png||height="367" width="500"]]
++
++Remote Mgmt
++
++===== 2.2.2.2 Step2: Authorization server =====
++
++copy the Gateway Publickey into user's private server "/home/XXXXX/.ssh/authorized_keys" file.
++
++[[image:https://wiki.dragino.com/images/thumb/4/49/Publickey.png/500px-Publickey.png||height="81" width="500"]]
++
++Publickey
++
++===== 2.2.2.3 Step3: connecte private server =====
++
++in the gateway web UI
++
++[[image:https://wiki.dragino.com/images/thumb/0/04/Gateway_web_UI.png/500px-Gateway_web_UI.png||height="389" width="500"]]
++
++gateway web UI
++
++{{{Connection Type      : If user's least privileged user with private server uses a password, select Public Key
++Note:if user's least privileged user no uses a password,choose from both is fine
++Login ID             : Input user name "eg : "XXXXX"
++Host Address         : Input user's private server address
++Connect at Startupt: : Choose to enable connect once device is powered.
++Click Save and then Connect
++}}}
++
++===== 2.2.2.4 Step 4 :Cheak is fine =====
++
++Rssh Host connection Ok
++
++[[image:https://wiki.dragino.com/images/thumb/6/6f/Rssh_Host_connection_Ok.png/500px-Rssh_Host_connection_Ok.png||height="225" width="500"]]
++
++Rssh Host connection Ok
++
++user can use common ps | grep ssh to check it in the gateway.
++
++[[image:https://wiki.dragino.com/images/thumb/a/ad/Check_the_gateway.png/500px-Check_the_gateway.png||height="47" width="500"]]
++
++Check the gateway
++
++
++===== 2.2.2.5 Step5:Create an authorization key file =====
++
++1):sudo mkdir /home/xxxxx/.ssh; sudo touch /home/xxxxx/.ssh/authorizedkey
++
++**Debug:**
++
++{{{ check: sudo ls /home/xxxxx/.ssh/authorizedkey
++}}}
++
++=== 2.2.3 How to Ser up a Reverse SSH access ===
++
++==== 2.2.3.1 Step1: Log into the server system ====
++
++[[image:https://wiki.dragino.com/images/thumb/2/26/Loging_server.png/500px-Loging_server.png||height="69" width="500"]]
++
++Loging server
++
++==== 2.2.3.2 Step2:access the gateway ====
++
++$ cd rssh-server/
++
++
++Check the gateway linking to the server $ ./connect-gw.sh -l
++
++[[image:https://wiki.dragino.com/images/thumb/e/ee/Check_gateway_link_server.png/500px-Check_gateway_link_server.png||height="157" width="500"]]
++
++Check the gateway linking to the server
++
++
++access the gateway $ ./connect-gw.sh <GWID>
++
++[[image:https://wiki.dragino.com/images/thumb/b/b7/Reverse_ssh_access_the_gateway1.png/500px-Reverse_ssh_access_the_gateway1.png||height="230" width="500"]]
++
++reverse ssh access the gateway

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