I have created REST API in ruby on rails and for api calling I have used
Faraday as a REST client. my application is working totally fine on localhost:3000.
but when I deployed it to heroku it giving me an error
Faraday::ConnectionFailed (connection refused: :80)
May be you should try on port 443.
There should be a .env file in your project which will be holding the port number . You need to configure it and point it to the port where heroku is using .
Related
I was implementing laravel websockets package in project it is working fine in my local machine but on server first it was giving error of Connection timeout That problem was solved when add TCP port in aws security group but after that it starts giving new error
WebSocket connection to 'ws://52.64.101.38:6001/app/ABCDEF?protocol=7&client=js&version=4.3.1&flash=false' failed: Error in connection establishment: net::ERR_CONNECTION_REFUSED
Here are errors I am getting in console when try to connect websocket server
I was searching about this error i found this github thread . Which is saying try to bound with 0.0.0.0 but I dont know what does it means,
https://github.com/GeniusesOfSymfony/WebSocketBundle/issues/251
I was also getting this error on local machine but was later resolved when i downgrade package version 1.6
NOTE: I am using ubuntu server aws services
I was hoping someone could help.
I am trying to sftp to a remote server that is behind a firewall. I have a proxy setup and can sftp via the unix terminal succesfully. However when using mulesofts SFTP connector I get a timeout. From research it looks like this is because it is run on the JVM.
Mule comes with wrapper.conf to update any jvm settings so I have set the following settings:
wrapper.java.additional.15=-DsocksProxyHost:hostname
wrapper.java.additional.16=-DsocksProxyPort=1080
When I do this the Mule service no longer runs and get the following error:
WrapperManager Error: Unexpected exception opening backend socket: java.net.SocketException: Can't connect to SOCKS proxy:Invalid argument or cannot assign requested address
Hopefully someone can assist.
Thank you.
Perhaps typo in the
-DsocksProxyHost:hostname
Should be = rather than :.
The port is unnecessary, 1080 is the default. Documentation is here, see section 2.4 for SOCKS
http://docs.oracle.com/javase/8/docs/technotes/guides/net/proxies.html
Created new EC2 instance of neo4j via CloudFormation template found here (ubuntu host).
https://github.com/neo4j-contrib/ec2neo
Got the web interface to work fine, and DB is up and running.
Trying to connect with neo4j-shell from my local dev machine, and I am able to establish a connection to the remote EC2 server.
$ neo4j-shell -host ec2-xx-xx-xx-xx.compute-1.amazonaws.com
Welcome to the Neo4j Shell! Enter 'help' for a list of commands
NOTE: Remote Neo4j graph database service 'shell' at port 1337
neo4j-sh (?)$
netstat confirms that a connection has been ESTABLISHED
tcp6 0 0 xx.xx.xx.xx:1337 my.local.ip.add:13785 ESTABLISHED
At this point, I type help, or any neo4j command, and I get no response back from the server. The console just hangs. As soon as I stop the neo4j service on the server, I get the following exception on the client console.
java.rmi.UnmarshalException: Error unmarshaling return header; nested exception is:
java.io.EOFException
at sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:229)
at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:162)
at java.rmi.server.RemoteObjectInvocationHandler.invokeRemoteMethod(RemoteObjectInvocationHandler.java:194)
at java.rmi.server.RemoteObjectInvocationHandler.invoke(RemoteObjectInvocationHandler.java:148)
at com.sun.proxy.$Proxy1.interpretLine(Unknown Source)
at org.neo4j.shell.impl.AbstractClient.evaluate(AbstractClient.java:149)
at org.neo4j.shell.impl.AbstractClient.evaluate(AbstractClient.java:133)
at org.neo4j.shell.impl.AbstractClient.grabPrompt(AbstractClient.java:101)
at org.neo4j.shell.StartClient.grabPromptOrJustExecuteCommand(StartClient.java:383)
at org.neo4j.shell.StartClient.startRemote(StartClient.java:330)
at org.neo4j.shell.StartClient.start(StartClient.java:196)
at org.neo4j.shell.StartClient.main(StartClient.java:135)
Caused by: java.io.EOFException
at java.io.DataInputStream.readByte(DataInputStream.java:267)
at sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:215)
... 11 more
I have made the following change to neo4j-wrapper.conf :
wrapper.java.additional=-Djava.rmi.server.hostname=ec2-xx-xx-xx-xx.compute-1.amazonaws.com
All iptables are "disabled", to eliminate variables. I am able to run neo4j-shell on the server itself, to 127.0.0.1
What am I missing in my network config or neo4j server config?
Try to ssh into the instance and run it there. remote connections have been a pain for a long time because of the underlying Java RMI port handling.
You can also try out cycli which supports http and auth.
When I try to authorize my account for shinyapps, I receive the following error:
Error in function (type, msg, asError = TRUE) :
Failed to connect to api.shinyapps.io port 443: Connection refused
I know that it has something to do with my proxy or firewall settings, but I do not know how to get around this.
I am not sure how to specify a proxy for \code{rcurl} and \code{curl} connections - as I think this may be the fix?
Any help is appreciated!
If you're using the shinyapps package you can read the proxy documnation by running the following commands from your R console:
?shinyapps::rsconnectProxies
Our FTP service from our server just stops working and we have no idea why each time
we get this error: Status: Connection attempt failed with "ECONNREFUSED - Connection refused by server". Error: Could not connect to server
any ideas where to check in server?
If you are sure that the server is actually running. Try to restart it using something like:
service vsftpd restart
You need to replace vsftpd with whatever FTP you might be using. See if you get any erros when doing this.