I have read and tried prior suggestions.
Here is what I have done.
I signed up for a static IP through a Proxy Server (that uses Port 3128)
I have tested that static IP is working (verified with several IP look up services)
I have chanced the authorized root password
I have tried setting the client host to Proxy Server value on the authorized users.
I have white labeled/authorized the static IP in Cloud SQL
I have tried both the IPv6 and IPv4 addresses from Cloud SQL in MySQL Workbench
I never get passed the error: Lost connection to MySQL server at 'reading initial communication packet', system error: 22 when using the IPv6 and Lost connection to MySQL server at 'reading initial communication packet', system error: 0 when using the IPv4
As an aside, I was able to authorize Zapier IP and have tested a webhook to Cloud SQL
It isn't clear from your description: did you whitelist your computer's IP address? There are sites that will tell you which IP address your computer is using, and that is the address you should use under the Access Control panel.
Related
Is there a way to proxy/ port forward GCP Cloud SQL so that we can connect to it via the internet?
I don't want to do an SSH port forward via a Virtual Machine. Instead, I'm looking for a way such that we could connect to CloudSQL from a public IP of either a Virtual Machine or a Kubernetes service.
I don't want to connect directly from the public IP of the CloudSQL instance as it requires us to whitelist the user's IP address. We have also tried the Cloud SQL proxy but faced speed and performance issues.
Hence, now I'm looking for a solution to proxy the CloudSQL connection from a VM or Kubernetes service
I have tried using Stunnel to proxy the connection as described in this documentation.
output=/tmp/stunnel.log
CAfile=/tmp/mysql-server-ca.pem
client=yes
pid=/var/run/stunnel.pid
verifyChain=yes
sslVersion=TLSv1.2
[mysqls]
accept=0.0.0.0:3307
connect=private-ip:3306
But, I get an error while connecting to the MySQL server:
ERROR 2013 (HY000): Lost connection to MySQL server at 'reading initial communication packet', system error: 104
Edit:
Stunnel runs on a Virtual Machine on Google Cloud
Stunnel connects to CloudSQL via Private IP (Both VM and CloudSQL share the same subnet)
MySQL can be connected from the VM using the private IP
Stunnel Logs:
2022.09.22 10:53:17 LOG5[2]: Service [mysqls] accepted connection from 127.0.0.1:37014
2022.09.22 10:53:17 LOG5[2]: s_connect: connected <mysql-private-ip>:3306
2022.09.22 10:53:17 LOG5[2]: Service [mysqls] connected remote server from 10.128.0.53:53302
2022.09.22 10:53:17 LOG3[2]: SSL_connect: ../ssl/record/ssl3_record.c:331: error:1408F10B:SSL routines:ssl3_get_record:wrong version number
2022.09.22 10:53:17 LOG5[2]: Connection reset: 0 byte(s) sent to TLS, 0 byte(s) sent to socket
To access a Cloud SQL from a Compute Engine VM try the following, you can use either the Cloud SQL Auth proxy (with public or private IP), or connect directly using a private IP address
From the client machine or Compute Engine VM instance, use What's my
IP to see the IP address of the client machine.
Copy that IP address. In the Google Cloud console, go to the Cloud
SQL Instances page.
Go to Cloud SQL Instances
To open the Overview page of an instance, click the instance name.
Select Connections from the SQL navigation menu.
In the Authorized networks section, click Add network and enter the
IP address of the machine where the client is installed. Note: The IP
address of the instance and the MySQL client IP address you authorize
must be the same IP version: either IPv4 or IPv6
Click Done. Then click Save at the bottom of the page to save your
changes. Connect to your instance, either with SSL or without SSL.
To access a Cloud SQL instance from an application running in Google Kubernetes Engine, you can use either the Cloud SQL Auth proxy (with public or private IP), or connect directly using a private IP address. To connect to Cloud SQL you must have:
A GKE cluster, with the kubectl command-line tool installed and
configured to communicate with the cluster. For help getting started
with GKE, see the Quickstart.
Check the document for steps on how to configure without SSL
For Public IP-configured instances, a public-facing IPv4 address may
be enabled, allowing users outside the GCP project and VPC network to
connect to the instance.
Check the similar example here.
I connect to a Google Cloud MySQL DB from my laptop, however my IP address not only changes at home, but also when I travel. I have to specify the allowed public ip address in Google Cloud, but every time I reconnect I have to log in & update google cloud with my new IP address.
What is the best solution to not have to do that?
To solve this issue you should use Cloud SQL Auth proxy:
The Cloud SQL Auth proxy provides secure access to your instances without the need for Authorized networks or for configuring SSL.
You can find more details how it works at the documentation:
The Cloud SQL Auth proxy works by having a local client running in the
local environment. Your application communicates with the Cloud SQL
Auth proxy with the standard database protocol used by your database.
The Cloud SQL Auth proxy uses a secure tunnel to communicate with its
companion process running on the server.
While the Cloud SQL Auth proxy can listen on any port, it only creates
outgoing connections to your Cloud SQL instance on port 3307. If your
client machine has an outbound firewall policy, make sure it allows
outgoing connections to port 3307 on your Cloud SQL instance's IP.
I've some mysql host in private network and would like to use a reverse proxy server (i.e. nginx) to connect with mysql-client to mysql host via reverse proxy server.
An example to better understand my answer:
suppose I've:
a mysql server with ip yyy.1
a mysql server with ip yyy.2
both in the network of a proxy server with ip XXX, and I associate to XXX the DNS mysql-server1.com and mysql-server2.com.
My goal is connect to mysql server yyy.1 when I use mysql client to connect to XXX by calling mysql-server1.com on port 3306, and similare when try mysql-server2.com on port 3306.
The problem with nginx is that I can't differenciate TCP request by server name, so in XXX server I should associate one port foreach mysql server, but this implies that every time I should change the port also in mysql client settings, and I don't wanna this!
There's some proxy-server that can accomplish that?
Could I use IP Table to route the request mysql-server1.com:3306 to localhost:[some port], where I could use [some port] in proxy setting to forward the requests to the server yyy.1?
This is impossible.
In the MySQL Client/Server protocol, the client never identifies the hostname to which it is attempting to connect to. Unlike in some other protocols, such as HTTP (with the Host header), the original name the client used to resolve an IP address from DNS is not preserved. TLS SNI is also not available, because TLS negotiation on a MySQL connection does not begin until the client reads the server capability flags to discover whether the server supports TLS, at which point the client asks to switch the connection to TLS... and this, of course, is after the connection is is already established.
In the MySQL Client/Server protocol, the server always talks first.
Your only options are for the proxy machine to listen on multiple IP addresses, with a DNS hostname pointing to each IP, and use the address to which the client connected to determine which server to use.
Or, each proxy instance listens on a separate port.
The protocol design prevents name-based virtual hosting.
I have a VB.NET application that can connect to the SQL Server through LAN base, but how can I connect to it through internet, the application need to use outside, I know i need to use the public IP instead of using the IP address of the server but my public IP address that I've set in connection string can't connect to the server, Here's my connection string
Dim connstr$ = "Server=xxx.xx.xx.xxx\SQLEXPRESS,xxxx;Initial Catalog=sample_db;Integrated Security=True
Public conn As New SqlConnection(connstr)
I've try also to set the port and change the firewall restriction,enabled the TCP etc. and search a lot here but still doesn't work
Here's our network setup
PC-->router-->internet modem
1433 is the default sql server communication port. Port 1433 should be forwarded to the local IP address where your sql server runs.
1) Make sure that port 1433 is the valid communication port for sql server. You can check it from sql server configuration tools. Use actual port number rather than 1443 if it was changed by someone.
2) Find NAT (Network address translation) menu in your modem or router administration panel.
3) Forward port 1433 to your server's local IP address
4) Restart device
As a note that, your modem does not require a static IP. Your device most probably might have a new IP address after every restart. But it would be valid until you restart it once more. You can use this IP address in order to access your database remotely. It would be better but you don't have to get a static IP address.
UPDATE: You should also be sure that, port is not blocked by a program on the server such as a virus or security program.
Good luck
Google "port forwarding", which is also called Network address translation or "NAT".
The other answers are perfect but searching for the term on google should get you an idea on what it is, and how to go about it. Add your router name to the search for exact steps.
In short forward the port that SQL Server is listening on, from the router to the server machine. You will need to do some configuration on the router for that by opening the admin page. For how and details, Google "port forwarding"
We have a small network behind a firewall (WatchGuard XTM 2 series) and network switch. On our network we have multiple instances of SQL server, but 1 in specific that I would like to be able to access remotely from our website. We have a static IP address from our ISP and then all the machines on the network have a locally assigned dynamic IP address. When trying to connect to the database from outside our network how do I get the request to be directed to the proper machine / SQL instance? Is it a parameter in my connection string or something in my firewall?
A few things to rule out:
1) The firewall is allowing access from the website to our network. I added the site's IP and opened up port 1433. Also, when trying to connect and monitoring the firewall no exceptions come up as they did before I added the proper IP address.
2) Remote connections on the SQL server has been setup and enabled. I've done a lot of reading up on remote connections and I am sure it has been setup properly.
I am currently getting this error message on my site:
A network-related or instance-specific
error occurred while establishing a
connection to SQL Server. The server
was not found or was not accessible.
Verify that the instance name is
correct and that SQL Server is
configured to allow remote
connections. (provider: TCP Provider,
error: 0 - A connection attempt failed
because the connected party did not
properly respond after a period of
time, or established connection failed
because connected host has failed to
respond.)
The Server parameter of the ConnectionString indicates what server to connect to. Assign an ip address or URL to the server that you want to access and put that in your connection string.