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1		-{{box cssClass="floatinginfobox" title="**Contents**"}}
	1	+ **Contents:**
	2	+
2	2	{{toc/}}
3		-{{/box}}
4	4
5		-= Paragraph 1 =
6	6
7		-Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.
8	8
9		-== Sub-paragraph ==
	7	+= **1. Use Remote.it service** =
10	10
11		-Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.
	9	+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.
12	12
13		-== Sub-paragraph ==
	11	+(% style="color:red" %)**Important Notice:**
14	14
15		-Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.
	13	+(% style="color:red" %)* **Remote.it access will give full control of your device to remote support.**
	14	+~* **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.**
16	16
17		-=== Sub-sub paragraph ===
	16	+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]].
18	18
19		-Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.
20	20
	19	+= **2. RSSH Introduction** =
21	21
22		-= Paragraph 2 =
	21	+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.
23	23
24		-Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.
	23	+(% style="color:red" %)**Important Notice:**
25	25
26		-== Sub-paragraph ==
	25	+(% style="color:red" %)* **RSSH access will give full control of your device to remote support. Please remove sensitivity info before perform this**
	26	+~* **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.**
27	27
28		-Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.
	28	+Below gateway support reverse SSH access:
29	29
30		-== Sub-paragraph ==
	30	+* Firmware Version > LG02_LG08-5.3.1580178039 [[Firmware Download>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/LPS8/Firmware/Release/]]
	31	+* LG01N, OLG01N (Note: LG01-P LG01-S doesn't support)
	32	+* LG02, OLG02
	33	+* LG308, DLOS8
	34	+* LPS8
	35	+* LIG16
	36	+* MS14 series if installed with the same firmware.
31	31
32		-Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.
	38	+
	39	+
	40	+== **2.1 For Firmware Version lower than lgw~-~-build-v5.4.1616478814-20210323-1355** ==
	41	+
	42	+=== **2.1.1 End User Guide to use SSH access** ===
	43	+
	44	+Go to this the Reverse SSH page as below:
	45	+
	46	+[[image:image-20220527102348-1.png]]
	47	+
	48	+Get the RSSH configure page
	49	+
	50	+
	51	+[[image:image-20220527103251-2.png]]
	52	+
	53	+Connection OK.
	54	+
	55	+* (% style="color:#4f81bd" %)**Login ID**(%%): Input (% style="color:#4f81bd" %)**sshuser**
	56	+* (% style="color:#4f81bd" %)**Host Address**(%%): Input** (% style="color:#4f81bd" %)support.dragino.com(%%)**
	57	+* (% style="color:#4f81bd" %)**Host Port**(%%): Please email to support @ dragino.com to get a valid host port.
	58	+* (% style="color:#4f81bd" %)**Connect at Startupt**(%%): Choose to enable connect once device is powered.
	59	+* (% style="color:#4f81bd" %)**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
	60	+
	61	+(((
	62	+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.
	63	+)))
	64	+
	65	+
	66	+=== **2.1.2 How to Ser up a Reverse SSH access** ===
	67	+
	68	+Advance administrator can config a SSH server to provide support their end user themselves. Instruction is as below:
	69	+
	70	+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.
	71	+1. In the gateway settings, The (% style="color:#4f81bd" %)**Login ID**(%%) will be the SSH user for this server and the (% style="color:#4f81bd" %)**Host Address**(%%) is the server address.
	72	+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.
	73	+1. Give a free port to the user and ask them to configure RSSH page in the gateway.
	74	+1. In your server or other machine, you will able to access to the end user device by below command:
	75	+
	76	+(% class="box" %)
	77	+(((
	78	+$ ssh   -p <End User Host Port>   root@<Host Address>
	79	+)))
	80	+
	81	+(((
	82	+(% style="color:red" %)**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.**
	83	+)))
	84	+
	85	+
	86	+==== **2.1.2.1 Note for set up RSSH server** ====
	87	+
	88	+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.
	89	+
	90	+(% class="box" %)
	91	+(((
	92	+[root@iZt4n22vqvm7ajogrfiif6Z ~~]# lsof -i :9102 ~-~-> check the port 9102 process status (change 9102 to the actually port for your gateway.
	93	+COMMAND   PID    USER   FD   TYPE   DEVICE SIZE/OFF NODE NAME
	94	+sshd    21430 sshuser   15u  IPv4 47567059      0t0  TCP localhost:bacula-fd (LISTEN)
	95	+[root@iZt4n22vqvm7ajogrfiif6Z ~~]# kill 21430   ~-~-> Kill PID of this process.
	96	+[root@iZt4n22vqvm7ajogrfiif6Z ~~]# lsof -i :9102
	97	+[root@iZt4n22vqvm7ajogrfiif6Z ~~]#
	98	+)))
	99	+
	100	+
	101	+== **2.2 For Firmware Version higher than lgw~-~-build-v5.4.1618196981-20210412-1111** ==
	102	+
	103	+Below gateway support reverse SSH access:
	104	+
	105	+(% class="box" %)
	106	+(((
	107	+Firmware Version >lgw~-~-build-v5.4.1618196981-20210412-1111 Firmware Download
	108	+LG01N, OLG01N (Note: LG01-P LG01-S doesn't support)
	109	+LG02, OLG02
	110	+LG308, DLOS8
	111	+LPS8
	112	+LIG16
	113	+)))
	114	+
	115	+
	116	+=== **2.2.1 End User Guide to use SSH access** ===
	117	+
	118	+==== **2.2.1.1 Install the SSH service for server** ====
	119	+
	120	+===== **2.2.1.1.1 Step 1:Download the SSH service code** =====
	121	+
	122	+1).git clone [[https:~~/~~/github.com/dragino/rssh-server.git>>url:https://github.com/dragino/rssh-server.git]] rssh-server
	123	+
	124	+[[image:image-20220527105447-1.png]]
	125	+
	126	+git clone rssh-server
	127	+
	128	+
	129	+2).cd rssh-server; sudo make ~-~--> to Generate the execute file：rssh_serv
	130	+
	131	+[[image:image-20220527105511-2.png]]
	132	+
	133	+Generate the execute file
	134	+
	135	+
	136	+**Debug** :
	137	+
	138	+(% class="box" %)
	139	+(((
	140	+if you git fail.  ~-~->    (% style="color:#4f81bd" %)**sudo: git: command not found.**(%%)
	141	+please install git.  ~-~->  (% style="color:#4f81bd" %)**yum install git -y  or  apt-get install git -y.**
	142	+)))
	143	+
	144	+(% class="box" %)
	145	+(((
	146	+if you make error 127,it** (% style="color:#4f81bd" %)lack of gcc.(%%)**
	147	+please install gcc.    ~-~->(% style="color:#4f81bd" %)**yum install gcc.**
	148	+)))
	149	+
	150	+[[image:image-20220527105856-3.png]]
	151	+
	152	+lack of gcc
	153	+
	154	+(% class="box" %)
	155	+(((
	156	+if you make a fatal error : sqlite3.h,it (% style="color:#4f81bd" %)**lack of sqlite3.**(%%)
	157	+please insatell (% style="color:#4f81bd" %)**sqlite3**.
	158	+)))
	159	+
	160	+[[image:image-20220527105918-4.png]]
	161	+
	162	+lack of sqlite3
	163	+
	164	+
	165	+How to install Sqlit3
	166	+
	167	+(% class="box" %)
	168	+(((
	169	+Step1: Download the SQLit3 installation package
	170	+ sudo wget [[https:~~/~~/www.sqlite.org/2021/sqlite-autoconf-3350400.tar.gz>>url:https://www.sqlite.org/2021/sqlite-autoconf-3350400.tar.gz]]
	171	+Step2: tar the SQLit3 installation package
	172	+ sudo tar -zxvf sqlite-autoconf-3350300.tar.gz
	173	+Step3: Generate the makefile
	174	+ cd sqlite-autoconf-3350300/;./configure
	175	+Step4: Compile makefile
	176	+ sudo make
	177	+Step5: Install makefile
	178	+ sudo make install
	179	+Check:
	180	+ cd /usr/local/bin;ls -al                             ~-~->    Check to see if there is a file for sqlite3
	181	+ cd sqlite-autoconf-3350300/;./sqlite3 test.db        ~-~->    Test whether the sqlite3 was installed successfully
	182	+debug:
	183	+ If you get the imformation that is SQLite header and source version mismatch, when you execute./sqlite3 test.db.
	184	+ Please execute the command /sbin/ldconfig.
	185	+ After that execute the command ./sqlite3 test.db again.
	186	+)))
	187	+
	188	+
	189	+===== **2.2.1.1.2 Step 2 :Install and run the RSS service** =====
	190	+
	191	+1): intall database for /var/rsshdb.sqlite3 and Server development port for 3721(The default is 3721)
	192	+
	193	+user must enter the root account and run the following commands
	194	+
	195	+(% class="box" %)
	196	+(((
	197	+ $ ./create_sqlite3_db.sh
	198	+ $ ./rssh_serv -p  3721 2>&1 &
	199	+ $ ps -ef | grep rssh_serv check 3721 port
	200	+)))
	201	+
	202	+[[image:image-20220527110436-6.png]]
	203	+
	204	+intall database and server development port
	205	+
	206	+**Debug:**
	207	+
	208	+(% class="box" %)
	209	+(((
	210	+Check /var/rsshdb.sqlite3 ~-~->(% style="color:#4f81bd" %)** ls /var/rsshdb.sqlite3**(%%)
	211	+Check ls /var/rsshdb.sqlite3 ~-~-> (% style="color:#4f81bd" %)**sudo chmod 777 rssh_serv**
	212	+)))
	213	+
	214	+(% class="box" %)
	215	+(((
	216	+if** fail to open dpvlry or to bind to it**
	217	+please kill rssh_serv,and run (% style="color:#4f81bd" %)** ./rssh_serv -p  3721 2>&1 &** (%%) again
	218	+)))
	219	+
	220	+
	221	+===== **2.2.1.1.3 Step 3 :Create a minimal SSH user (reverse SSH proxy for the gateway)** =====
	222	+
	223	+**1): (% style="color:#4f81bd" %)sudo useradd XXXXX(%%)** (custom user name)
	224	+
	225	+**2):** (% style="color:#4f81bd" %)**sudo passwd xxxxxx**
	226	+
	227	+**3):** (% style="color:#4f81bd" %)**cp /bin/bash /bin/rbash**
	228	+
	229	+**4):** (% style="color:#4f81bd" %)**sudo nano /etc/passwd**(%%) ~-~-> Change /bin/bash to /bin/rbash
	230	+
	231	+**5):** (% style="color:#4f81bd" %)**sudo nano /home/xxxxx/.bashrc**(%%) **empty it,and input export PATH=$HOME/bin**
	232	+
	233	+**6):** (% style="color:#4f81bd" %)**sudo nano /home/xxxxx/.bash_profile**(%%) **empty it,and input export PATH=$HOME/bin**
	234	+
	235	+**Now user "XXXXX" is the user with limited permissions of the current system**
	236	+
	237	+
	238	+=== **2.2.2 How does user get the gateway to connect to a user's private server** ===
	239	+
	240	+===== **2.2.2.1 Step1: Come bace the gateway web UI for get the gateway Public key** =====
	241	+
	242	+1) in the system ~-~-> (% style="color:#4f81bd" %)**Remote Mgmt/span>**
	243	+
	244	+[[image:image-20220527110531-7.png]]
	245	+
	246	+Remote Mgmt
	247	+
	248	+
	249	+===== **2.2.2.2 Step2: Authorization server** =====
	250	+
	251	+copy the Gateway Publickey into user's private server "/home/XXXXX/.ssh/authorized_keys" file.
	252	+
	253	+[[image:image-20220527110625-8.png]]
	254	+
	255	+Publickey
	256	+
	257	+
	258	+===== **2.2.2.3 Step3: connecte private server** =====
	259	+
	260	+in the gateway web UI
	261	+
	262	+[[image:image-20220527110700-9.png]]
	263	+
	264	+gateway web UI
	265	+
	266	+(% class="box" %)
	267	+(((
	268	+(% style="color:#4f81bd" %)**Connection Type **(%%) : If user's least privileged user with private server uses a password, select (% style="color:#4f81bd" %)**Public Key**(%%)
	269	+**Note:if user's least privileged user no uses a password,choose from both is fine**
	270	+(% style="color:#4f81bd" %)**Login ID**(%%)             : Input user name "eg : "XXXXX"
	271	+(% style="color:#4f81bd" %)**Host Address**(%%)         : Input user's private server address
	272	+(% style="color:#4f81bd" %)**Connect at Startupt**(%%): Choose to enable connect once device is powered.
	273	+Click Save and then Connect
	274	+)))
	275	+
	276	+
	277	+===== **2.2.2.4 Step 4 :Cheak is fine** =====
	278	+
	279	+Rssh Host connection Ok
	280	+
	281	+[[image:image-20220527111009-10.png]]
	282	+
	283	+Rssh Host connection Ok
	284	+
	285	+
	286	+user can use common ps | grep ssh to check it in the gateway.
	287	+
	288	+[[image:image-20220527111041-11.png]]
	289	+
	290	+Check the gateway
	291	+
	292	+
	293	+===== **2.2.2.5 Step5:Create an authorization key file** =====
	294	+
	295	+1):sudo mkdir /home/xxxxx/.ssh; sudo touch /home/xxxxx/.ssh/authorizedkey
	296	+
	297	+**Debug:**
	298	+
	299	+(% class="box" %)
	300	+(((
	301	+ check: sudo ls /home/xxxxx/.ssh/authorizedkey
	302	+)))
	303	+
	304	+
	305	+=== **2.2.3 How to Ser up a Reverse SSH access** ===
	306	+
	307	+==== **2.2.3.1 Step1: Log into the server system** ====
	308	+
	309	+[[image:image-20220527111145-12.png]]
	310	+
	311	+Loging server
	312	+
	313	+
	314	+==== **2.2.3.2 Step2:access the gateway** ====
	315	+
	316	+(% class="box" %)
	317	+(((
	318	+$ cd rssh-server/
	319	+)))
	320	+
	321	+Check the gateway linking to the server $ ./connect-gw.sh -l
	322	+
	323	+[[image:image-20220527111219-13.png]]
	324	+
	325	+Check the gateway linking to the server
	326	+
	327	+
	328	+access the gateway $ ./connect-gw.sh <GWID>
	329	+
	330	+[[image:image-20220527111300-14.png]]
	331	+
	332	+reverse ssh access the gateway

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