When I try to connect to Tor, I receive the following error:
This could be due to a connection issue rather than Tor being blocked. Check your Internet connection, proxy and firewall settings before trying again.
It works perfectly fine when I'm not connected to a proxy, but now that I'm connected to a proxy (127.0.0.1:9050), it isn't working, and is giving me the error above.
I'm new to Web App so I'm sorry if this is a simple question.
I enter: ngrok http 5000
Then when I go to the correct https address I get the message below.
The connection to https://e71eb98330fe.ngrok.io was successfully tunneled to your ngrok client, but the client failed to establish a connection to the local address 127.0.0.1:5000.
Make sure that a web service is running on 127.0.0.1:5000 and that it is a valid address.
The error encountered was: dial tcp 127.0.0.1:5000: connect: connection refused
According to this answer:
I need to set up a web server and point it to local host 5000.
But my error is slightly different and even when I try going to: localhost:5000
It doesn't work.
Is the problem just that I need to point a web server to 5000? How do I do that?
I wanted to make a ODBC connection from Windows PC to AS/400 DB2 server and I wrote a VBA program. But I got the following error.
Remote port could not be resolved
Then, I checked the status of server with CWSPING and got the result below:
I - Verifying connection to system 192.168.1.2...
I - Successfully connected to server application: Central Client
I - Successfully connected to server application: Network File
I - Successfully connected to server application: Network Print
I - Successfully connected to server application: Data Access
I - Successfully connected to server application: Data Queues
I - Successfully connected to server application: Remote Command
I - Successfully connected to server application: Security
E - CWBCO1011 - Remote port could not be resolved
E - CWBCO1008 - Unable to connect to server application DDM, returned 8407
I - Successfully connected to server application: Telnet
W - CWBCO1015 - Connection verified to system 192.168.1.2, but there were warnings
This means DDM service is not working on the server. ODBC connection requires DRDA, which runs upon DDM service, so I think running DDM service is the key to make ODBC connection. So I tried STRTCPSVR *DDM command but got the result below
*DDM not valid for parameter SERVER
And also tried CHGDDMTCPA AUTOSTART(*YES) PWDRQD(*YES) command, but got an error and I got stuck.
Command CHGDDMTCPA in library *LIBL not found
Does anyone have an idea of enabling DDM server on AS400?
Server: IBM AS400
OS version: V4R1
Try STRHOSTSVR *DATABASE.
STRHOSTSVR is used to start servers associated with IBM i Access and i Access Client Solutions.
STRTCPSVR is used, in general, to start servers associated with TCP/IP like FTP, Telnet, etc. Except the HTTP Server which is started via the Web Administration site at http://<server>:2001.
Additionally to the answer from #jmarkmurphy:
You can easily check netstat *cnn for open ports.
There is actually a tcpsvr named *ddm but that isn't used with ODBC.
ODBC-Access only needs host server *database. There aren't any further requirements for host servers.
For checking which services are started at tcp startup time, use strfdu, option 5 with the file qusrsys/qatocstart. From there you can easily view and change what should be started and what not.
Finally, I got connected by using JDBC. The summary of what I found is as follows:
ODBC seems using DRDA(port 446) but the server does not have DRDA/DDM service
OLEDB seems connecting Data Access(port 8471) but issued unknown error
JDBC also connection Data Access(port 8471) and it worked!
The first error I encountered when using ODBC is "Remote port could not be resolved". What happened behind this seems as follows:
ODBC asked Server Mapper(port 449) to find DRDA port(it may change on a server)
Server Mapper could not find DRDA port because the server has no DRDA service
ODBC showed "port not resolved" error
Then, I tried OLEDB this time. It checked user/password correctly but issued unknown error. When I put incorrect password, it showed "password is incorrect", which means OLEDB successfully log on to the server but got some error after sign on.
The last, I used JDBC and successfully connected! Generally, the connection url is like "jdbc:as400://" but it showed error. Using trace of JDBC, it seems to have problem on sign on to the server. So I changed the url to "jdbc:as400://:8471", then I finally connected. Looking into trace, it directly access to port 8741 and send user/password and get connected. I don't know the detail, but it worked!
Appreciated for your help!
when i connect to the specific server using telnet protocol ,I receive the error "could not open connection to the host,on port 23,connection failed" ..only I am unable to access specific three servers from telnet protocol..I am able to access some other servers without issues.
This mean on those three servers telnet server is not started. You can check it by connecting to the host and execute command like:
netstat -an|grep 23
Encountered ngrok error:
client failed to establish a connection to the local address.
I'm running a local server in another terminal on the same port (8081). I've also used postman to confirm the server is running properly on my local machine.
What else would be causing this error?
I have an early 2015 Macbook Pro 13 inch running Sierra.
While I was working on a Rails app I wanted to run it on ngrok but I got below error
The connection to http://xxxxxx.ngrok.io was successfully tunneled to your ngrok client, but the client failed to establish a connection to the local address localhost:3000.
It seems like ngrok works fine but my local server is not. Which is true since I forgot to run my rails app first by run $ rails s. By doing so I was able to get ngrok tunneing works fine.
Make sure your local server run first. Good luck.
If localhost is missing from your /etc/hosts; ngrok may fail to resolve it.
Try to explicitly point to 127.0.0.1 instead of localhost:
ngrok http 127.0.0.1:8080