remote connection on
sql server auth on
tcp ip on
tcp ip on2
tcp ip on3
tcp ip on4
firewall on
I also have done port fowarding too.
When I try to connect sql express through public ip, it never connects.
When I checked 1435 is open or not, it is closed.
My mysql remote access works perfectly though...
Related
I am trying to open access to my SQL Server from outside my network, but while my ports are open in my Windows Firewall and routed from my router, telnet can't connect.
To explain a bit more I have opened both TCP 1433 and UDP 1434 ports in my Windows Firewall to allow remote access to my SQL Server.
Ports seems to be properly opened in my windows firewall as both a telnet [local_server_ip] 1433 and SSMS can connect from a different computer within my local network.
When trying to connect from outside my network (using my external IP) Telnet can't connect (Connect failed).
In my router, ports are redirected (TCP 1433 and UDP 1434) and I also tried setting my SQL Server IP as DMZ but it did not went through. My other port redirection works properly so I don't think it comes from the router (for instance I have Emby as a media server, and I can access it from outside my network or use telnet to connect to the port opened for this service).
Am I missing a configuration in SQL Server configuration manager? For instance I had to manually set the TCP port in SQL Server Network Configuration > TCP/IP properties > IP Adresses > IPAll and set TCP Port as 1433
Or can it come from either my Windows Firewall (even though the inbound rules has similar characteristics as the inbound rule for my Emby server) or my router?
So locally it all seems to work, but from outside it does not? This does indicate your router NAT setting being an issue.
Just to point out, exposing an SQL Server to public internet is relatively insecure. Ideally you add a VPN to your local network and use that to reach the SQL server instead. Just to point out, I can imagine it could work, but you might want to rethink the setup.
I want to connect to SQL Server Express on localhost using the default static port, 1433, instead of dynamic ports. I want to use both IPv4 and IPv6 to connect, so I want to be able to connect both with 127.0.0.1 and [::1].
I've managed to configure SQL Server Express to listen at port 1433 on 0.0.0.0 via SQL Server Configuration Manager but I am not still not able to make SQL Server listen at port 1433 on local interface [::1] and 127.0.0.1.
Any ideas?
0.0.0.0 called "IPALL" in the SQL Server Configuration Manager causes the SQL Instance to listen on that port on all current and future IP addresses, including the IP4 and IP6 loopback addresses.
If you want SQL Server to listen only on the loopback addresses, disable "Listen All" for TCP/IP in the Configuration manager and enable and configure the two loopback ip addresses seperately.
I have a SQL Server 2019 on Azure VM and I am trying to connect to it from clients behind on-premisses network firewall.
The connection string is as follows:
[ODBC]
DRIVER=ODBC Driver 13 for SQL Server;
SERVER=x.x.x.x,1433;
DATABASE=XXXXX;
UID=XXXXX;
PWD=XXXXX;
TrustServerCertificate=No;
Trusted_Connection=No;
I think the client network firewall is blocking connections on port 1433 and possibly others.
What i've tried so far with no luck:
Change the server configuration to listen also on port 14330
Try to connect through a VPN (the firewall doesn't allow the connection to the VN Gateway)
The connection works just fine when established directly from the Internet.
I don't have administrative privileges over the client machines.
Any help on how to overcome this would be much appreciated.
I get the following message when trying to connect to SQL database from a remote machine using MS Management Studio with Server Name [ XX.XXX.XXX.XXX,1433\MyServerName ] and SQL authentication:
Cannot connect to XX.XXX.XXX.XXX,1433\MyServerName.
ADDITIONAL INFORMATION:
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 - The wait operation timed out.) (Microsoft SQL Server, Error: 258)
The wait operation timed out
I have done the following:
Allowed remote connection in Server Properties window in SQL Management Studio
Configured server machine to have static IPv4/DNS addresses.
Enabled TCP/IP in SQL Configuration Manager (in SQL Server Network Configuration)
In TCP/IP properties, adjusted [ Protocol -> Listen All -> No ] & set IP[1-8] to TCP port 1433 and IPAll port to 1433 (TCP dynamic ports left blank)
Set Inbound/Outbound enable connection (Domain, public, private) rules in Windows Firewall for ports TCP 1433, UDP 1434 (should make no difference, since port is specified), service executables: sqlbrowser.exe in C:\Program Files (x86)\Microsoft SQL Server\90\Shared (not used I think because port is specified) and sqlservr.exe in C:\Program Files\Microsoft SQL Server\MSSQL13.MyServerName \MSSQL\Binn
Set NAT actions in server-side router for ports 1433 (TCP), 1434 (UDP) (again, should not matter) to server's local IPv4 address and ports 1433, 1434 accordingly.
Made sure SQL service is running, ports are open and listening on server machine.
I can connect to the database on server machine using Windows or Sql credentials with either PC name, or machine's local IPv4.
Interesting thing is, when >telnet XX.XXX.XXX.XXX 1433 is run, it takes about 10-12 seconds to fail (Could not open connection to the host, on port 1433: Connect failed), but I can see the 2 packets coming to the router itself. Same with the login using SQL Manager - packets come to the router, but either server machine refuses (doesn't resolve?) the connection, or it doesn't even get to the machine.
Appreciate your suggestions.
Versions used:
MS SQL Server 2016 Express, MS SQL Management Studio 17, SQL Server 2016 Configuration Manager, Windows 10 Pro.
Have you tried telnet on 1433 locally?
Are you sure your local connection is using TCP/IP? By default, local connections use DBNMPNTW (named pipes) which uses shared memory on the back end for local connections and is faster than TCP/IP.
When SQL Server is working correctly on TCP/IP telnet will connect and leave you blinking waiting for protocol-- it doesn't hang for 10-12 seconds and fail.
If telnet works locally but not remotely, then you know the problem is in the networking layer (firewall, NAT, routing, etc.). If it does not, then the problem is in the SQL configuration setup. Did you restart the service after changing the connection settings?
Unable to connect to our company MSSQL server from one of our FreeBSD servers.
# telnet 192.168.1.51 1433
Trying 192.168.1.51...
telnet: connect to address 192.168.1.51: Connection refused
telnet: Unable to connect to remote host
No firewall running on the MSSQL server, and i have opened the default port on the BSD-FW
00210 allow tcp from any to any dst-port 1433 in
00215 allow tcp from any to any dst-port 1433 out
Any ideas on this?
The specifics of the MSSQL server running on a Windows Server 2003
Test whether you can connect from another non-local machine. If not TCP connections may not be enabled for SQL Server. Here are instructions for enabling TCP/IP Connections with SQL Server 2000
I updated it MSSQL to Service Pack 4, and i'm now able to telnet to the server on the specified port. And also connect to the server from PHP with pdo_dblib