I am facing problem with my delphi application connecting to firebird database on Port 45000:
If I try to connect as Localhost/45000:C:\DBNAME.fdb its giving below error
Can't format message 13:98 -- message file C:\firebird.msg not found. Unable to complete network request to host "localhost". Failed to establish a connection. An attempt was made to access a socket in a way forbidden by its access permissions.
I don't understand what is this error tried changing port cheked free ports using netstat command no use.
Any help will be highly appreciated
Thanks in Advance
I think I had the same problem in the past.
Re-installing Firebird helped.
Issue Sorted out.
Thanks to those who gave some suggestions.
It was Windows One Care firewall service which was blocking all the ports in the vista system.
I could not find it because it was visible only in the services and not anywhere else.
Read the entire Configuring Firebird. Create an alias of your database.
Also take a look on the Installing Notes. Add exception to the windows firewall. If still encountering problems take a look on the http://www.gradiencesupport.com/entries/20932048-Gradience-Pro-Enterprise-Unable-to-connect-to-your-Interbase-Firebird-Server
Related
I have neo4j 3.2.4 installed on a Ubuntu instance. After installing, all I've done to start neo4j is "sudo neo4j console" which directs me to a web interface. Unfortunately, I must connect to the web interface on a different computer which I can do via localhost:7474 or https://localhost:7473. (There is some port forwarding required.) Both get me to the landing page. There I am asked to enter a password (the default one) to connect to the database but I then get the error - "ServiceUnavailable: WebSocket connection failure. Due to security constraints in your web browser, the reason for the failure is not available to this Neo4j Driver ..."
The only site that suggests a solution is here. The suggested solution is to uncomment "dbms.connector.bolt.address=0.0.0.0:7687" in the neo4j.conf file which I did. I then restarted neo4j but I keep on getting the same error.
FWIW - telnet 127.0.0.1 7687 works so connecting to Bolt seems to be fine.
There is also a Github issue referencing this problem but no specific suggested solutions. (Neo4j - issue 504)
Any suggestions greatly appreciated.
Thank you for the information InverseFalcon. FWIW I got things to work by switching over to Firefox where I had also set up FoxyProxy. (So not sure if it was Firefox or FoxyProxy that helped - but would a place to start for anyone else having trouble.)
If you are able to open neo4j web interface, then goto settings -> Network connection section and then check the checkbox that says "Do Not Use Bolt".
After installing the Community edition 3.3.5 on Windows I was getting the same issue as mentioned above, using Chrome. After reading Greg's solution using Firefox, I switched to Internet Explorer and it worked fine.
Yesterday was 13th, probably well known virus caused crash of internet connection and Windows 10 functions. I could not use keyboard and mouse either to restart or to repair Windows10 with advanced options. With installation USB program started but with bugs and no internet connections was available since no hardware devices found.
The freeware tool cFosICS manages Windows Internet Connection Sharing. It comes with additional commands to fix the Windows 10 bug which may stop Internet Connection Sharing from working after a reboot.
See details here: https://www.cfos.de/en/cfosspeed/cfosics.htm
Try Installation from a DVD .This is Most preferable.Or you can use latest version of RUFUS to boot your Flash Drive.Install the latest version of Windows 10 Pro.
Goto Here For Download
Make sure you have internet connectivity to Sign in to Windows Account.
Set the Update off if you have all problems are solved.
Hope it will help !!
I checked status on cmd with configip/all and got answer IP routing is disabled. So I went to device manager I looked in help how to connect to internet. In Microsoft Management Console/Contents/Get Connected/ there is Connecting to the Internet procedure.
I used Get-NetAdapter. t-NetAdapter: Cannot connect to CIM server error. The service can not be started, either because it is disabled or because another software installation is in progress. Same with Test-Configuration command. The error means: „Cannot connect the computer to the server because of restart pending.
The simple is to use Microsoft Virtual Agent which will with your problem question and it will guide it through steps needed to solve problem. It also recommednds cmd commands as referred above. In my case I had to update Windows10 with formed USB key.
Today I download neo4j-community-3.2.0 in windows, when i start the server, i meet one problem in browser, i meet this problem in neo4j-community-3.1.2 and i had solved it by Ticking the "Do not use Bolt" option in settings solved the issue. But in neo4j-community-3.2.0 , i can't see "Do not use Bolt" option ,and i don't know how to do.
N/A: WebSocket connection failure. Due to security constraints in your web browser, the reason for the failure is not available to this Neo4j Driver. Please use your browsers development console to determine the root cause of the failure. Common reasons include the database being unavailable, using the wrong connection URL or temporary network problems. If you have enabled encryption, ensure your browser is configured to trust the certificate Neo4j is configured to use. WebSocket readyState is: 3
This happens because the browser is trying (under the hood) to also access the bolt port, which uses an unsigned certificate.
You probably allowed the browser to access the SSL 7474 port through allowing the unsigned certificate as an exception on your browser (and if you didn't, you should in order to make it work).
The url was:
https://[neo4j_host]:7474
Do the same for the bolt certificate, allow it as an exception for url:
https://[neo4j_host]:7687
I ran into the same problem trying to use Neo4j Community Edition on an AWS Ubuntu 16.04 instance. The key thing that solved it was to open port 7687 (the bolt port) in the AWS security group settings.
Found this based on https://stackoverflow.com/a/45234105/1529646
Thus, full answer is:
Make sure to configure Neo4j correctly, ie. uncomment the line dbms.connectors.default_listen_address=0.0.0.0 AND the line dbms.connector.bolt.listen_address=:7687
Open ports 7474 AND 7687 in the AWS security group settings.
In the lower left corner of the browser gear, select do not use bolt.
Open your ${NEO4J_HOME}/conf/neo4j.conf file and edit the bolt settings. It is just about uncommenting this line dbms.connector.bolt.address=0.0.0.0:7687
Change the version of Neo4j
Check your JDK version, use JDK1.8
Adding another option, which worked for me. If your bolt's tls_level is set to REQUIRED, you need to change it to OPTIONAL, if you are not using it with SSL certificate; to get this working.
If you are using Neo4J Community Edition (ver 3.5.1 - in my case) from AWS Marketplace, you need to change the configuration in:
/etc/neo4j/pre-neo4j.sh
Change this line:
echo "dbms_connector_bolt_tls_level" "${dbms_connector_bolt_tls_level:=REQUIRED}"
to
echo "dbms_connector_bolt_tls_level" "${dbms_connector_bolt_tls_level:=OPTIONAL}"
You can find more about Neo4J connector configuration option here. Ideally as per docs, by default bolt.tls_level should have been OPTIONAL only. But I'm not really sure what exactly happened in my case, which got it changed to REQUIRED. Or if it came as is from AWS Marketplace.
Assuming you have valid certs and placed them under the correct certificates directory:
dbms.ssl.policy.bolt.client_auth=NONE
Version 4.0. Took it from this article.
I shared my full ssl config on this other answer.
I had the same error. New to Neo, so take this with a grain of salt, but my solution didn't match these above idea. But thanks as they did lead me to the right "water". So
I went into the conf file, noticed that there was the same port number (previously, the Neo desktop had been constantly telling me it'd needed to update the port numbers...I never checked to verity, but they'd be #, #+1 and #+2. But that didn't work yet that'd happened again and again...but now, after checking the conf file myself, I noticed that the number was the same for all three port requirements for BOLT. Tried that and it didn't work either...but maybe that was important in what did:
In the folder, where the specific database is housed, named "..neo4jdatabases/[GUID Value]" there were two directories titled "/installation-3.4.0" and "...1". I removed the ".0", restarted things and IT WORKED.
So, either there should NOT be two versions under the same database collection OR that's true AND you need the three ports to be the same.
Final add for any Neo4j experts who actually know what they're doing, I have three databases running, two without issue. This occurred AFTER I was messing around trying to see how PowerShell might be useful. Not sure if this is related, but the other databases have worked fine...but, this db is the original playground/sandbox I'd had since the beginning. Not 100% sure, I made the version update before or after, creating the other two databases. HTH.
Using a windows trial version on a Windows 10 machine. Current N4j version is 3.4.1.
Do love what I see so far with Neo BTW!!!
Please mention the correct bolt port under the Connect URL textbox.if you are using the service port the mention the service port in place of bolt port.
Then finally I resolve it by replacing the bolt port with service port inside k8s.
user: neo4j
password: neo4j
I resolve this error by replace the port 7687 with node port 30033 inside Neo4j
then it works fine.
I was facing the same issue with Neo4J version 4 installed on an Ubuntu 18 EC2 instance. Tthe workaround that did the trick for me was to replace the 0.0.0.0 entries in /etc/neo4j/neo4j.conf with the actual private IP of my instance.
Following are the lines where the replace happened:
dbms.default_listen_address=172.X.X.232
dbms.connector.bolt.address=172.X.X.232:7687
Post restart of the DB, the Connect URL when accessing from browser should also use the private IP instead of localhost.
I'm new to Wildfly and I hope you guys can help me with this problem:
I'm following this tutorial on how to Install Wildfly 8 and when I'm trying to execute step 4 I get the following errors:
I've been googling for a while now and I can't find an answer. I've tryed with JDK 7 and 8, no changes, I'm using admin permissions, I've even tried to download Wildfly again and still no changes.
More experienced co-workers have seen this and don't have a clue about what's going on.
Can you help me? Thanks
The tutorial you linked to, has Wildfly configured to use the default port 8080. Most likely, you have another process or service running which is already using port 8080. Try to find out what process it is and stop it, or try configuring Wildfly to use a different port.
try restart the machine or enable IPV6 in the machine, this error will be resolved
Those having the same problem should check who else uses the port 9990 in your Windows system. TCPView is a good tool to find out the guilty of charge. One of possible common causes in this case is NVIDIA Network Service (NvNetworkService.exe).
If that's the case just find it in your Windows services list and stop/disable it. The service itself is responsible for checking for Nvidia drivers updates, so any time you want it back just turn it on manually.
In my case, I inadvertedly added an AJP socket binding while using standalone jboss_cli utility:
[standalone#localhost:9990 /] /subsystem=undertow/server=default-server/ajp-listener=ajp:add(socket-binding=ajp)
This led to an 'already in use' error that doesn't let any app to start and signaled 503 error through an Apache web server.
I deleted the binding:
/subsystem=undertow/server=default-server/ajp-listener=ajp:remove
And then everything worked normally.
I too had the same issue.After analysis it was found that the SSL port(443 in my case) was creating this issue. I just terminated the processes that were running on 443 and restarted the wildfly and everything worked fine after that.
I had faced same issue with wildfly_8.2.1
Port 8080 was also free, so that solution doesn't worked for me.
Try below procedure as it helped to resolve my issue.
add below lines to your server's /etc/sysctl.conf file
net.ipv6.conf.all.disable_ipv6 = 1
net.ipv6.conf.default.disable_ipv6 = 1
No restart is required for this solution.
I'm trying to retrieve emails from gmail using pop3 to my rails applicaiton. I get the error - "getaddrinfo: Temporary failure in name resolution" when i try to retrieve the email.
the weird thing is, it works when i try it at home but not at my university. i'm guessing it has something to do with the internet connection.
please help!
I had the same problem just started getting this error out of the blue in a RoR application that connects to an API using a RestClient running on a local virtual machine using Vagrant that I have as a development environment.
The only thing that fixed the issue was simply restarting my virtual machine. Just done a vagrant down & up command, then rackup and back in the game.
This generally means you aren't getting a response from DNS. Your university connection is probably behind a proxy preventing you from directly accessing the Internet. If so, this proxy must be specified in your code. Check your POP3 library documentation, or failing that, you may be able to use a library like socksify that redirects TCP connections through your SOCKS proxy.
Simple. You may be directed through a proxy server. Set up a new connection ,set up your college settings,restart your server and it should work.
ssh into your server and check if the machine is able to resolve the domain.
ping <your_site> should resolve the domain name to IP.
If its not resolving correctly, then there is some problem in your hosting service.
quick fix: You can manually map domain-to-ip in the etc/hosts file of your server.