Changes for page Remote Access Gateway

Last modified by Kilight Cao on 2022/07/25 10:47
<
From version < 2.4 >
edited by Xiaoling
on 2022/05/12 14:24
To version < 19.19 >
edited by Xiaoling
on 2022/07/14 14:59
>
Change comment: There is no comment for this version

Summary

Details

Page properties
Content
... ... @@ -1,28 +1,32 @@
1 - **Contents:**
1 + **Table of Contents:**
2 2  
3 3  {{toc/}}
4 4  
5 5  
6 -= 1. Use Remote.it service =
7 7  
7 += **1.  Use Remote.it service** =
8 +
9 +
8 8  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.
9 9  
10 -(% class="mark" %)**Important Notice:**
12 +(% style="color:red" %)**Important Notice:**
11 11  
12 -* (% class="mark" %)**Remote.it access will give full control of your device to remote support.**
13 -* (% 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.**
14 +* (% style="color:red" %)**Remote.it access will give full control of your device to remote support.**
15 +* (% style="color:red" %)**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.**
14 14  
15 15  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]].
16 16  
17 17  
18 -= 2. RSSH Introduction =
19 19  
21 += **2.  RSSH Introduction** =
22 +
23 +
20 20  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.
21 21  
22 -(% class="mark" %)**Important Notice:**
26 +(% style="color:red" %)**Important Notice:**
23 23  
24 -* (% class="mark" %)**RSSH access will give full control of your device to remote support. Please remove sensitivity info before perform this**
25 -* (% 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.**
28 +(% style="color:red" %)* **RSSH access will give full control of your device to remote support. Please remove sensitivity info before perform this**
29 +~* **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.**
26 26  
27 27  Below gateway support reverse SSH access:
28 28  
... ... @@ -34,26 +34,28 @@
34 34  * LIG16
35 35  * MS14 series if installed with the same firmware.
36 36  
37 -== 2.1 For Firmware Version lower than lgw~-~-build-v5.4.1616478814-20210323-1355 ==
41 +== **2.1  For Firmware Version lower than lgw~-~-build-v5.4.1616478814-20210323-1355** ==
38 38  
39 -=== 2.1.1 End User Guide to use SSH access ===
40 40  
44 +=== **2.1.1  End User Guide to use SSH access** ===
45 +
46 +
41 41  Go to this the Reverse SSH page as below:
42 42  
43 -[[image:https://wiki.dragino.com/images/thumb/5/55/RSSH_Menu2.png/500px-RSSH_Menu2.png||height="256" width="500"]]
49 +[[image:image-20220527102348-1.png]]
44 44  
45 45  Get the RSSH configure page
46 46  
47 47  
48 -[[image:https://wiki.dragino.com/images/thumb/7/78/RSSH_Menu3.png/500px-RSSH_Menu3.png||height="313" width="500"]]
54 +[[image:image-20220527103251-2.png]]
49 49  
50 50  Connection OK.
51 51  
52 -* (% class="mark" %)**Login ID**(%%): Input (% class="mark" %)**sshuser**
53 -* (% class="mark" %)**Host Address**(%%): Input(% class="mark" %)** support.dragino.com**
54 -* (% class="mark" %)**Host Port**(%%): Please email to support @ dragino.com to get a valid host port.
55 -* (% class="mark" %)**Connect at Startupt**(%%): Choose to enable connect once device is powered.
56 -* (% 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
58 +* (% style="color:#4f81bd" %)**Login ID**(%%):  Input (% style="color:#4f81bd" %)**sshuser**
59 +* (% style="color:#4f81bd" %)**Host Address**(%%):  Input** (% style="color:#4f81bd" %)support.dragino.com(%%)**
60 +* (% style="color:#4f81bd" %)**Host Port**(%%):  Please email to support @ dragino.com to get a valid host port.
61 +* (% style="color:#4f81bd" %)**Connect at Startupt**(%%): Choose to enable connect once device is powered.
62 +* (% 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
57 57  
58 58  (((
59 59  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.
... ... @@ -60,26 +60,33 @@
60 60  )))
61 61  
62 62  
63 -=== 2.1.2 How to Ser up a Reverse SSH access ===
64 64  
70 +=== **2.1.2  How to Ser up a Reverse SSH access** ===
71 +
72 +
65 65  Advance administrator can config a SSH server to provide support their end user themselves. Instruction is as below:
66 66  
67 67  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.
68 -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.
76 +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.
69 69  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.
70 70  1. Give a free port to the user and ask them to configure RSSH page in the gateway.
71 71  1. In your server or other machine, you will able to access to the end user device by below command:
72 72  
73 -{{{ $ ssh -p <End User Host Port> root@<Host Address>
74 -}}}
81 +(% class="box" %)
82 +(((
83 +$ ssh   -p <End User Host Port>   root@<Host Address>
84 +)))
75 75  
76 -(% 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.**
86 +(((
87 +(% 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.**
88 +)))
77 77  
78 78  
79 -==== 2.1.2.1 Note for set up RSSH server ====
80 80  
81 -* 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.
92 +==== **2.1.2.1  Note for set up RSSH server** ====
82 82  
94 +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.
95 +
83 83  (% class="box" %)
84 84  (((
85 85  [root@iZt4n22vqvm7ajogrfiif6Z ~~]# lsof -i :9102 ~-~-> check the port 9102 process status (change 9102 to the actually port for your gateway.
... ... @@ -90,200 +90,270 @@
90 90  [root@iZt4n22vqvm7ajogrfiif6Z ~~]#
91 91  )))
92 92  
93 -== 2.2 For Firmware Version higher than lgw~-~-build-v5.4.1618196981-20210412-1111 ==
94 94  
107 +== **2.2  For Firmware Version higher than lgw~-~-build-v5.4.1618196981-20210412-1111** ==
108 +
95 95  Below gateway support reverse SSH access:
96 96  
97 -{{{ Firmware Version >lgw--build-v5.4.1618196981-20210412-1111 Firmware Download
98 - LG01N, OLG01N (Note: LG01-P LG01-S doesn't support)
99 - LG02, OLG02
100 - LG308, DLOS8
101 - LPS8
102 - LIG16
103 -}}}
111 +(% class="box" %)
112 +(((
113 +Firmware Version >lgw~-~-build-v5.4.1618196981-20210412-1111 Firmware Download
114 +LG01N, OLG01N (Note: LG01-P LG01-S doesn't support)
115 +LG02, OLG02
116 +LG308, DLOS8
117 +LPS8
118 +LIG16
119 +)))
104 104  
105 -=== 2.2.1 End User Guide to use SSH access ===
106 106  
107 -==== 2.2.1.1 Install the SSH service for server ====
122 +=== **2.2.1  End User Guide to use SSH access** ===
108 108  
109 -===== 2.2.1.1.1 Step 1:Download the SSH service code =====
110 110  
111 -1).git clone [[https:~~/~~/github.com/dragino/rssh-server.git>>url:https://github.com/dragino/rssh-server.git]] rssh-server
125 +==== **2.2.1.1  Install the SSH service for server** ====
112 112  
113 -[[image:https://wiki.dragino.com/images/thumb/d/d0/Git_clone.png/500px-Git_clone.png||height="80" width="500"]]
114 114  
128 +===== (% style="color:blue" %)**Step 1 : Download the SSH service code**(%%) =====
129 +
130 +
131 +**1).  **git clone [[https:~~/~~/github.com/dragino/rssh-server.git>>url:https://github.com/dragino/rssh-server.git]] rssh-server
132 +
133 +[[image:image-20220527105447-1.png]]
134 +
115 115  git clone rssh-server
116 116  
117 -2).cd rssh-server; sudo make ~-~--> to Generate the execute file：rssh_serv
118 118  
119 -[[image:https://wiki.dragino.com/images/thumb/e/e3/Generate_the_execute_file.png/500px-Generate_the_execute_file.png||height="103" width="500"]]
138 +**2). ** cd rssh-server; sudo make ~-~--> to Generate the execute file：rssh_serv
120 120  
140 +[[image:image-20220527105511-2.png]]
141 +
121 121  Generate the execute file
122 122  
144 +
123 123  **Debug** :
124 124  
125 -{{{ if you git fail. --> sudo: git: command not found.
126 - please install git. --> yum install git -y or apt-get install git -y.
127 -}}}
147 +(% class="box" %)
148 +(((
149 +if you git fail.  ~-~->    (% style="color:#4f81bd" %)**sudo: git: command not found.**(%%)
150 +please install git.  ~-~->  (% style="color:#4f81bd" %)**yum install git -y  or  apt-get install git -y.**
151 +)))
128 128  
129 -{{{ if you make error 127,it lack of gcc.
130 - please install gcc. -->yum install gcc.
131 -}}}
153 +(% class="box" %)
154 +(((
155 +if you make error 127,it** (% style="color:#4f81bd" %)lack of gcc.(%%)**
156 +please install gcc.    ~-~->(% style="color:#4f81bd" %)**yum install gcc.**
157 +)))
132 132  
133 -[[image:https://wiki.dragino.com/images/d/d7/Lack_of_gcc.png||height="174" width="434"]]
159 +[[image:image-20220527105856-3.png]]
134 134  
135 135  lack of gcc
136 136  
137 -{{{ if you make a fatal error : sqlite3.h,it lack of sqlite3.
138 - please insatell sqlite3.
139 -}}}
163 +(% class="box" %)
164 +(((
165 +if you make a fatal error : sqlite3.h,it (% style="color:#4f81bd" %)**lack of sqlite3.**(%%)
166 +please insatell (% style="color:#4f81bd" %)**sqlite3**.
167 +)))
140 140  
141 -[[image:https://wiki.dragino.com/images/thumb/9/93/Lack_of_sqlite3.png/500px-Lack_of_sqlite3.png||height="137" width="500"]]
169 +[[image:image-20220527105918-4.png]]
142 142  
143 143  lack of sqlite3
144 144  
145 -How to install Sqlit3
146 146  
147 -{{{ Step1:Download the SQLit3 installation package
148 - sudo wget
149 - Step2:tar the SQLit3 installation package
174 +(% style="color:blue" %)**How to install Sqlit3:**
175 +
176 +(% class="box" %)
177 +(((
178 +(% style="color:#037691" %)**Step1:**(%%) Download the SQLit3 installation package
179 + sudo wget [[https:~~/~~/www.sqlite.org/2021/sqlite-autoconf-3350400.tar.gz>>url:https://www.sqlite.org/2021/sqlite-autoconf-3350400.tar.gz]]
180 +
181 +(% style="color:#037691" %)**Step2:**(%%) tar the SQLit3 installation package
150 150   sudo tar -zxvf sqlite-autoconf-3350300.tar.gz
151 - Step3:Generate the makefile
183 +
184 +(% style="color:#037691" %)**Step3:**(%%) Generate the makefile
152 152   cd sqlite-autoconf-3350300/;./configure
153 - Step4:Compile makefile
186 +
187 +(% style="color:#037691" %)**Step4:**(%%) Compile makefile
154 154   sudo make
155 - Step5:Install makefile
189 +
190 +(% style="color:#037691" %)**Step5: **(%%)Install makefile
156 156   sudo make install
157 - Check:
158 - cd /usr/local/bin;ls -al --> Check to see if there is a file for sqlite3
159 - cd sqlite-autoconf-3350300/;./sqlite3 test.db --> Test whether the sqlite3 was installed successfully
160 - debug:
192 +
193 +(% style="color:#037691" %)**Check:**(%%)
194 + cd /usr/local/bin;ls -al  ~-~->    Check to see if there is a file for sqlite3
195 + cd sqlite-autoconf-3350300/;./sqlite3 test.db        ~-~->  Test whether the sqlite3 was installed successfully
196 +
197 +(% style="color:#037691" %)**debug:**(%%)
161 161   If you get the imformation that is SQLite header and source version mismatch, when you execute./sqlite3 test.db.
162 162   Please execute the command /sbin/ldconfig.
163 163   After that execute the command ./sqlite3 test.db again.
164 -}}}
201 +)))
165 165  
166 -===== 2.2.1.1.2 Step 2 :Install and run the RSS service =====
167 167  
168 -1):intall database for /var/rsshdb.sqlite3 and Server development port for 3721(The default is 3721)
169 169  
205 +===== (% style="color:blue" %)**Step 2 : Install and run the RSS service**(%%) =====
206 +
207 +
208 +**1):**  intall database for /var/rsshdb.sqlite3 and Server development port for 3721(The default is 3721)
209 +
170 170  user must enter the root account and run the following commands
171 171  
172 -{{{ $ ./create_sqlite3_db.sh
173 - $ ./rssh_serv -p 3721 2>&1 &
174 - $ ps -ef | grep rssh_serv check 3721 port
175 -}}}
212 +(% class="box" %)
213 +(((
214 +**~ $ ./create_sqlite3_db.sh
215 + $ ./rssh_serv -p  3721 2>&1 &
216 + $ ps -ef | grep rssh_serv check 3721 port**
217 +)))
176 176  
177 -[[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"]]
219 +[[image:image-20220527110436-6.png]]
178 178  
179 179  intall database and server development port
180 180  
223 +
181 181  **Debug:**
182 182  
183 -{{{ Check /var/rsshdb.sqlite3 --> ls /var/rsshdb.sqlite3
184 - Check ls /var/rsshdb.sqlite3 --> sudo chmod 777 rssh_serv
185 -}}}
226 +(% class="box" %)
227 +(((
228 +**Check /var/rsshdb.sqlite3  ~-~->(% style="color:#4f81bd" %)  ls /var/rsshdb.sqlite3(%%)**
229 +**Check ls /var/rsshdb.sqlite3 ~-~->**  (% style="color:#4f81bd" %)**sudo chmod 777 rssh_serv**
230 +)))
186 186  
187 -{{{ if fail to open dpvlry or to bind to it
188 - please kill rssh_serv,and run ./rssh_serv -p 3721 2>&1 & again
189 -}}}
232 +(% class="box" %)
233 +(((
234 +if** fail to open dpvlry or to bind to it**
235 +please kill rssh_serv,and run (% style="color:#4f81bd" %)** ./rssh_serv -p  3721 2>&1 &** (%%) again
236 +)))
190 190  
191 -===== 2.2.1.1.3 Step 3 :Create a minimal SSH user (reverse SSH proxy for the gateway) =====
192 192  
193 -1):sudo useradd XXXXX (custom user name)
194 194  
195 -2):sudo passwd xxxxxx
240 +===== (% style="color:blue" %)**Step 3 : Create a minimal SSH user (reverse SSH proxy for the gateway)**(%%) =====
196 196  
197 -3):cp /bin/bash /bin/rbash
198 198  
199 -4):sudo nano /etc/passwd ~-~-> Change /bin/bash to /bin/rbash
243 +**1): (% style="color:#4f81bd" %)sudo useradd XXXXX(%%)** (custom user name)
200 200  
201 -5):sudo nano /home/xxxxx/.bashrc **empty it,and input export PATH=$HOME/bin**
245 +**2):** (% style="color:#4f81bd" %)**sudo passwd xxxxxx**
202 202  
203 -6):sudo nano /home/xxxxx/.bash_profile **empty it,and input export PATH=$HOME/bin**
247 +**3):** (% style="color:#4f81bd" %)**cp /bin/bash /bin/rbash**
204 204  
205 -**Now user "XXXXX" is the user with limited permissions of the current system**
249 +**4):** (% style="color:#4f81bd" %)**sudo nano /etc/passwd**(%%)  ~-~-> Change /bin/bash to /bin/rbash
206 206  
207 -=== 2.2.2 How does user get the gateway to connect to a user's private server ===
251 +**5):** (% style="color:#4f81bd" %)**sudo nano /home/xxxxx/.bashrc**(%%) **empty it,and input export PATH=$HOME/bin**
208 208  
209 -===== 2.2.2.1 Step1: Come bace the gateway web UI for get the gateway Public key =====
253 +**6):** (% style="color:#4f81bd" %)**sudo nano /home/xxxxx/.bash_profile**(%%) **empty it,and input export PATH=$HOME/bin**
210 210  
211 -1)in the system ~-~-> Remote Mgmt/span>
212 212  
213 -[[image:https://wiki.dragino.com/images/thumb/8/8f/Remote_Mgmt.png/500px-Remote_Mgmt.png||height="367" width="500"]]
256 +(% style="color:red" %)**Now user "XXXXX" is the user with limited permissions of the current system**
214 214  
258 +
259 +
260 +=== **2.2.2  How does user get the gateway to connect to a user's private server** ===
261 +
262 +
263 +===== (% style="color:blue" %)**Step 1 : Come bace the gateway web UI for get the gateway Public key**(%%) =====
264 +
265 +
266 +**1) **in the system ~-~-> (% style="color:#4f81bd" %)**Remote Mgmt**
267 +
268 +[[image:image-20220527110531-7.png]]
269 +
215 215  Remote Mgmt
216 216  
217 -===== 2.2.2.2 Step2: Authorization server =====
218 218  
273 +
274 +===== (% style="color:blue" %)**Step 2 : Authorization server**(%%) =====
275 +
276 +
219 219  copy the Gateway Publickey into user's private server "/home/XXXXX/.ssh/authorized_keys" file.
220 220  
221 -[[image:https://wiki.dragino.com/images/thumb/4/49/Publickey.png/500px-Publickey.png||height="81" width="500"]]
279 +[[image:image-20220527110625-8.png]]
222 222  
223 223  Publickey
224 224  
225 -===== 2.2.2.3 Step3: connecte private server =====
226 226  
284 +
285 +===== (% style="color:blue" %)**Step 3 : connecte private server**(%%) =====
286 +
287 +
227 227  in the gateway web UI
228 228  
229 -[[image:https://wiki.dragino.com/images/thumb/0/04/Gateway_web_UI.png/500px-Gateway_web_UI.png||height="389" width="500"]]
290 +[[image:image-20220527110700-9.png]]
230 230  
231 231  gateway web UI
232 232  
233 -{{{Connection Type : If user's least privileged user with private server uses a password, select Public Key
234 -Note:if user's least privileged user no uses a password,choose from both is fine
235 -Login ID : Input user name "eg : "XXXXX"
236 -Host Address : Input user's private server address
237 -Connect at Startupt: : Choose to enable connect once device is powered.
294 +
295 +(% class="box" %)
296 +(((
297 +(% style="color:#4f81bd" %)**Connection Type **(%%) :  If user's least privileged user with private server uses a password, select (% style="color:#4f81bd" %)**Public Key**(%%)
298 +(% style="color:red" %)**Note: if user's least privileged user no uses a password,choose from both is fine**(%%)
299 +(% style="color:#4f81bd" %)**Login ID**(%%) :  Input user name "eg : "XXXXX"
300 +(% style="color:#4f81bd" %)**Host Address**(%%)  :  Input user's private server address
301 +(% style="color:#4f81bd" %)**Connect at Startupt**(%%):  Choose to enable connect once device is powered.
238 238  Click Save and then Connect
239 -}}}
303 +)))
240 240  
241 -===== 2.2.2.4 Step 4 :Cheak is fine =====
242 242  
306 +
307 +===== (% style="color:blue" %)**Step 4 : Cheak is fine**(%%) =====
308 +
309 +
243 243  Rssh Host connection Ok
244 244  
245 -[[image:https://wiki.dragino.com/images/thumb/6/6f/Rssh_Host_connection_Ok.png/500px-Rssh_Host_connection_Ok.png||height="225" width="500"]]
312 +[[image:image-20220527111009-10.png]]
246 246  
247 247  Rssh Host connection Ok
248 248  
316 +
249 249  user can use common ps | grep ssh to check it in the gateway.
250 250  
251 -[[image:https://wiki.dragino.com/images/thumb/a/ad/Check_the_gateway.png/500px-Check_the_gateway.png||height="47" width="500"]]
319 +[[image:image-20220527111041-11.png]]
252 252  
253 253  Check the gateway
254 254  
255 255  
256 -===== 2.2.2.5 Step5:Create an authorization key file =====
257 257  
258 -1):sudo mkdir /home/xxxxx/.ssh; sudo touch /home/xxxxx/.ssh/authorizedkey
325 +===== (% style="color:blue" %)**Step 5 : Create an authorization key file**(%%) =====
259 259  
327 +
328 +**1):**  sudo mkdir /home/xxxxx/.ssh; sudo touch /home/xxxxx/.ssh/authorizedkey
329 +
260 260  **Debug:**
261 261  
262 -{{{ check: sudo ls /home/xxxxx/.ssh/authorizedkey
263 -}}}
332 +(% class="box" %)
333 +(((
334 +**~ check: sudo ls /home/xxxxx/.ssh/authorizedkey**
335 +)))
264 264  
265 -=== 2.2.3 How to Ser up a Reverse SSH access ===
266 266  
267 -==== 2.2.3.1 Step1: Log into the server system ====
338 +=== **2.2.3  How to Ser up a Reverse SSH access** ===
268 268  
269 -[[image:https://wiki.dragino.com/images/thumb/2/26/Loging_server.png/500px-Loging_server.png||height="69" width="500"]]
270 270  
341 +==== (% style="color:blue" %)**Step 1 : Log into the server system**(%%) ====
342 +
343 +
344 +[[image:image-20220527111145-12.png]]
345 +
271 271  Loging server
272 272  
273 -==== 2.2.3.2 Step2:access the gateway ====
274 274  
275 -$ cd rssh-server/
276 276  
350 +==== (% style="color:blue" %)**Step 2 : access the gateway**(%%) ====
277 277  
352 +
353 +(% class="box" %)
354 +(((
355 +**$ cd rssh-server/**
356 +)))
357 +
278 278  Check the gateway linking to the server $ ./connect-gw.sh -l
279 279  
280 -[[image:https://wiki.dragino.com/images/thumb/e/ee/Check_gateway_link_server.png/500px-Check_gateway_link_server.png||height="157" width="500"]]
360 +[[image:image-20220527111219-13.png]]
281 281  
282 282  Check the gateway linking to the server
283 283  
284 284  
365 +
285 285  access the gateway $ ./connect-gw.sh <GWID>
286 286  
287 -[[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"]]
368 +[[image:image-20220527111300-14.png]]
288 288  
289 289  reverse ssh access the gateway
371 +
372 +
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