i've got another question for you.
I have Amazon EC2 instance with mondodb installed.
It works great except one thing - i can't access (connect to) it from outside (my PC).
I think the problem with Security Groups. It's some sort of default firewall.
Does anyone know how to configure EC2 instance to have access to mongodb?
Thanks in advance.
Think carefully before doing this. If you open the ports, make sure you restrict the IP numbers that can access it, otherwise anyone will be able to access your database. You can enable authentication in MongoDB, but it's not particularly safe, just a username and password. You should not have your database open to the internet, it is not a good idea.
A better way than opening up ports in the EC2 firewall is to open an SSH tunnel an forward the port, this makes sure that only you can access the database, and only while the SSH tunnel is active.
Open up a new terminal and run this command (replacing user and host with the user you use when SSH'ing to your server and the name of the server):
ssh user#host -N -L 27017:127.0.0.1:27017
The command will forward the port 27017 on your computer to the same port on the server. To connect to the MongoDB instance simply run mongo in a terminal (if that doesn't work, try mongo --host 127.0.0.1 or even mongo --host 127.0.0.1 --port 27017).
If you run MongoDB on your local machine you will have to change the first port, since the local server is already using it. In that case run this command instead:
ssh user#host -N -L 27018:127.0.0.1:27017
and then connect with
mongo --port 27018
(possibly adding --host 127.0.0.1 if it doesn't work).
When you're done working with the database, exit mongo and press ctrl-C in the terminal with the SSH command.
You need to add a security group exception for the port 27017 if you are using default config for you to access it from outside. For security group configuration, please check the amazon EC2 documentation. And if you are using a different port on Mongo, change the security group port accordingly.
--Sai
Is your EC2 instance a Windows server by any chance? If so, in addition to EC2's Security Groups you also need to configure Windows Firewall to allow the incoming connection.
Go To Administrative Tools, Windows Firewall with Advanced Security, and configure a new Rule that allows incoming connections on port 27017 (the default mongo port) or whatever port you've chosen.
Related
I created a VM in Microsoft Azure with Ubuntu 20 in which I run a Tomcat Server exposed to Port 443 and 80 (redirecting to 443), Neo4j on Port 7474, and Jenkins on Port 8081.
I can't access neither of those ports, although I set all the Inbound Port Rules like this:
When I try to reach IP:PORT, I always get this:
I am kinda new to Azure. It is possible to log in to the servier via SSH in the Terminal. Can anyone help me? How can I access my Server?
Have you tried to access to the VMs by using SSH and looking whats going on with the logs ?!
Yes, you can connect to a terminal by SSH:
ssh -i <private key path> username#ipaddress
If you don't config your SSH key, you can use create you password on the Azure portal.
In your VM, on the left, you have many options, and one name reset password.
Thought it should be straight forward but I have a very hard time figuring out the following:
I got mongodb connection string: mongodb://user:password#123.123.123.111:27017/?authSource=admin
I want to be able to connect to mongo from localhost at port 1234 by doing: mongo localhost:1234
The solution is to create a tunnel, but nothing I do works for me.
I tried the following command:
ssh -L 1234:localhost:27017 user:password#123.123.123.111 -p 27017
Please help me understand what I am doing wrong.
You need to have a unix user on 123.123.123.111
ssh -L 1234:localhost:27017 UNIXuser#123.123.123.111
Then your local mongodb connection string is : mongodb://user:password#localhost:1234/?authSource=admin
MongoDB and ssh use different protocols, so you can't use ssh to connect directly to a mongod process.
If you want to use an ssh tunnel you will first need to have an account on the destination machine, and use that account's credentials with ssh to connect to port 22 (assuming default port). The mongod username/password will probably not be valid for ssh.
Once the tunnel is established, you would connect to the local port using a driver or mongo shell using the connection string:
mongodb://user:password#127.0.0.1:1234/?authSource=admin
So we've accumulated enough applications in our network that use MongoDB to justify building a dedicated server specifically for MongoDB. Unfortunately, I'm pretty new to mongodb (coming from SQL/MySQL derivatives). I have followed several guides on installing and configuring mongodb for my environment. None are perfect, but I think I'm close... I've have managed to get to a point that I can connect to the db server from the local server using the following command:
mongo -u user 127.0.0.1/admin
However, I'm NOT able to connect to the server using this from either the local OR a remote computer using it's network address, IE:
mongo -u user 192.168.24.102/admin
I've tried both with authentication enabled and disabled, and I've tried setting the bindIP to 192.168.24.102 and 0.0.0.0 with no love. Thinking it was a Firewall issue, I disabled the firewall entirely... same. no love...
so what's the secret sauce? how do I connect to a MongoDB server remotely?
Some notes to know: This server is on a local network only. There will be some NAT shenanigans at some point directing public traffic to it from remote application servers, but only specific ports (we will NOT be using 27017 when that happens) and it will sit behind a pretty robust firewall appliance, so I'm not worried about securing the server as I about securing MongoDB itself.
This answer assume a setup where a Linux server is completely remote and has MongoDB already installed.
Steps:
1. Connect to your remote server over SSH.
ssh <userName>#<server-IP-address>
2. Start Mongo shell and add users to MongoDB.
Add the admin;
use admin
db.createUser(
{
user: "AdminSammy",
pwd: "AdminSammy'sSecurePassword",
roles: [
{"userAdminAnyDatabase",
"dbAdminAnyDatabase",
"readWriteAnyDatabase"}
]
}
)
Then add general user/users. Users are added to specific databases.
use some_db
db.createUser({
user: 'userName',
pwd: 'secretPassword',
roles: [{ role: 'readWrite', db:'some_db'}]
})
3. Edit your MongoDB config file, mongod.conf, that is found in etc directory.
sudo vim /etc/mongod.conf
Scroll down to the #security: section and add the following line. Make sure to un-comment the security: line.
security:
authorization: 'enabled'
After authorization has been enabled only those authenticated with password will access the database. In this case these are the ones added in step 2 above.
Note: Visual Studio code can also be used over SSH to edit the mongo.conf file.
4. Add remote server's IP address to mongod.conf file.
Look for the net line and add the IP address of the server that is hosting this MongoDB installation, example 178.45.55.88
# network interfaces
net:
port: 27017
bindIp: 127.0.0.1, 178.45.55.88
5. Open port 27017 on your server instance.
This allows access to your MongoDB server from anywhere in the world to anyone who knows your remote server IP address. This is one reason to have authenticated users. More robust ways of handling security are really important! Consult MongoDB manual for that.
Check firewall status using ufw.
sudo ufw status
If its not active, activate it.
sudo ufw enable
Then,
sudo ufw allow 27017
Important: You also need to allow port 22 for your SSH communication with your remote server. Otherwise you will be locked out from your remote server. Assumption here is that SSH uses port 22 for communication, the default.
sudo ufw allow 22
6. Restart Mongo daemon (mongod)
sudo systemctl restart mongod
7. Connect to remote Mongo server using Mongo shell
You can now connect to the remote MongoDB server using the following command.
mongo -u <user-name> -p <user-password> <remote-server-IP-address>:<mongo-server-port>
You can also connect to the remote MongoDB server with authentication:
mongo -u <user-name> -p <user-password> <remote-server-IP-address>:<mongo-server-port> --authenticationDatabase <auth-db-name>
You can also connect to a specific remote MongoDB database with authentication:
mongo -u <user-name> -p <user-password> <remote-server-IP-address>:<mongo-server-port>/<db-name> --authenticationDatabase <auth-db-name>
At this moment you can read and write within the some_db database from your local computer without ssh.
Important: Put into consideration the standard security measures for any database. Local security practices should guide what to do at any of the above steps.
I am trying to access my Linux machine from anywhere in the world. I have tried originally port forwarding and then ssh'ing in; however, I believe my school's WiFi won't allow port forwarding (every time I ran it, it would tell me connection refused). I have setup an account with ngrok and I can remotely SSH in, but now I am wondering if it is possible to RDP. I tried connecting via the Microsoft Remote Desktop app on Mac, but it instantly crashes. I have also looked at trying to connect with localhost, but it's not working. So far, I have tried (with xxxx being the port):
ssh -L xxxx:localhost:xxxx 0.tcp.ngrok.io
and
ssh -L xxxx:localhost:xxxx <user>#0.tcp.ngrok.io
but my computer won't allow it and after about 2 or 3 times, it warns me of a possible DNS Spoofing. Is there anyway that I can run a remote desktop of my linux machine that I have ssh tunneled to (from my mac) on ngrok? Thank you!
First you'll need to sign up with ngrok if you haven't already and you'll be given an authtoken. You'll need to install this by running
./ngrok authtoken <insert your token here>
This will save your token to a file located ../username/.ngrok/ngrok.yml
Then you'll need to ask ngrok to create a TCP tunnel from their servers to your local machine's Remote Desktop port which should be 3389 by default
ngrok tcp 3389
Give it 30 seconds or so then jump to http://localhost:4040/status to see what the tcp address ngrok has allocated you. It should look something like tcp://1.tcp.ngrok.io:158764
Now you should be able to remote into your machine using address 1.tcp.ngrok.io:158764
I have MongoDB 3.2 installed on my Linux Red Hat server.
I am starting to access it and looking at the mongo Shell instructions.
For a Windows machine, the instructions want me to get to the command prompt and change dirs to the installation directory. The problem is, MongoDB is installed on my web server and not my local windows machine.
Question: does Mongo Shell apply to me then? How do I start using, connecting and accessing Mongo from my Windows and Mac machines?
[Note: I am a traditional MySQL / phpMyAdmin developer looking to advance to MongoDB]
Amendments:
(1) With the help of #AlexBlex I am progressing to trying to connect to my MongoDB on my server from Robomongo on my windows client. I get the following error when trying to setup my connection. I tried the address with just my server ip and with http://{my server ip}. Neither worked. See screen shot of error
(2) This is what I have in my current mongod.conf file:
#port=27017
bind_ip=127.0.0.1
(3) here is what my connection settings look like. Oddly, #AlexBlex's solution below shows an SSH tab on his Mac version. The Windows and Mac versions I just installed lacks that tab.
If you install MongoDB on your local machine, you can use the Mongo shell like below to connect to your remote server
mongo yourserver:27017/database
You will have to configure your Mongo server to allow remote connections. In order to achieve this you need to have the following line in your /etc/mongodb.conf file. You need to replace 10.0.0.2 with the ip address of your client machine.
bind_ip = 127.0.0.1,10.0.0.2
You need either ssh to the server where mongodb is installed, or install mongodb on local machine.
For robomongo to connect to remote host you need to ssh to the server, and check it listens on external interface:
lsof -i | grep 27017
In case it is bound to localhost only, you need to edit a line with bind_ip in /etc/mongodb.conf and restart the service.
I would recommend to keep it listening on the local interface only for security reasons, and use ssh tunnelling to connect:
I found the answer. #ShahNewasKhan is brilliant. See How to connect Robomongo to MongoDB
All you need to do is SSH to server and edit mongod.conf file:
uncomment #port=27017 to port=27017
comment bind_ip=127.0.0.1 to #bind_ip=127.0.0.1
restart mongodb via service mongod restart
Then create a mongo connection via your server ip in the address field and 27017 in the port field
Hope this helps mongo newbies and start-ups like me :) Good luck.
Now I just need to figure out how to make this secure. My concern is that anyone who knows my server ip can hack into my MongoDB