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 have a Rails app on a windows machine that also has a SQLServer that it used to use as it's database.
However I am trying to transition the app to use a new SQL server on a different Windows machine.
The new Machine is reachable (ping)
After changing the database.yml file with the new IP I can go into Rails console and make queries on the new machine.
However, Running the code still queries the local(old) database.
I have restarted apache.
This is driving me nuts. Why is my code still hitting the old configuration? Do I need to restart the machine completely?
Thanks
Just Try printing the TARGET_ENV and the URI that you are targeting in the Ruby code. It will tell you which IP is being hit everytime.
I'm using wamp. I was out of business for two weeks than I'm back and trying to start my wamp 2. BANG. Nothing happens. The red W icon appears among the hidden icons. When I click it, shows all services offline.
WAMP Version: 2.1
APACHE: 2.2.17 (shipped with WAMP)
PHP: 5.3.4 (shipped with WAMP)
MYSQL: 5.1. 53 (shipped with WAMP)
WAMP install directory: I put it to a custom directory (not the default route).
MYSQL event: I'm using Ruby on Rails and I had some annoying problem about a missing dll thing. I replaced it, but after that I used without problems and limitations the WAMP.
Ideas:
Restart the computer: same issue.
Skype on: never use Skype. However it's installed.
Port 80 taken: no, I tested in the apache>service.
Log files: all 3 empty. There are several weeks old lines only.
Every time I start it, shows Offline, the icon is red and cant start any service. Tried to restart the program also. Nothing happens.
Because noone helped this time, I was forced to read for several hours (cc 10) around forums etc.
But I found my answer.
The problem wasn't the port 80 thing. Neither the IIS thing thats mentioned usually. Nor helped several reinstalls with different tricks (delete the records in regedit linked to wamp is mentioned usually).
The solution was a kind of localhost issue.
Steps:
try - http://127.0.01 - if it shows up the WAMP start page than you are on the right path
open the hosts file with notepad - c:/windows/system32/drivers/etc/hosts
Make sure there is only one line about the localhost like this:
127.0.0.1 localhost
This isn't good:
127.0.0.1 localhost
1 localhost
Or I had something like this (cant remember exactly):
127.0.0.1 localhost ::localhost localhost127.0.0.1
Save and close the hosts file and BANG. It works than.
Kael
Hello guys
i have installed wamp server Version 2.0 .. and i have tried some things and every thing ok ..
i have reboot my Desktop then some thing goes wrong when i am trying to open my local host
EMDAEMON
HTTP/1.1 404 , Not Found
should i consider re-installation ??
Reboot desktop? Open your local host? If you want to do web development you should get familiar with basic computer terminology, at least to a point when you are able to make questions that make a minimum sense.
I'll assume you have installed a bundle that includes the Apache web server and you want to configure a virtual host that's served when you load http://emdaemon in your web browser. The exact details to do so vary slightly depending on your platform. Being a newbie, I suggest you reuse the main site that's already configured and can be loaded through http://localhost. It's roughly explained at http://www.wampserver.com/en/presentation.php. Leave multiples sites for the future :)
Solved .... it seems that we have conflicts in ports ..change port in apache make it works
I'm having trouble deploying my delphi application. It uses dbxpress to access mysql 5.1 database. When i run the application from another computer, an error occurs. I've already included the midaslib.dll in my application and copied the dbxmys.dll and libmysql.dll in the same folder as my application.
Hope someone can help.
Can you make a connection with the ping command? Can you make a connection to the database itself? Just with the command prompt. Not with Delphi.
Maybe a firewall is blocking or the remote user is not authorized.