I am trying to run my app on my laptop that has wildfly installed but with no internet connection (internet connection should not be required since wildfly is my server). When my Vaadin PWA starts up, it says an internet connection is required. Is there a simple way to not require the internet?
No real good solutions I could find to try. Tried setting worker service in Chrome to offline.
Related
I currently have a Firebird 2.5 database at a client premises, installed on a Windows 7 Pro machine (32 bit), that has multiple stations in their local network that can connect to the database, along with the local machine being able to connect with our application and IBExpert.
However, for some of our software packages, a remote connection is required (outside of the local network). This previously was working but no longer works.
When I connect with FlameRobin from my office (I'm located in a different city / different network), I receive the following error message:
IBPP::SQLException
Context: Database::Connect
Message: isc_attach_database failed
SQL Message: -923
Connection not established
Engine Code : 335544421
Engine Message :
connection rejected by remote interface.
Performing this connection attempt with IBExpert, both from my office and from other external networks fail with a same message.
However, I am getting TCP/IP communication from what I can see. Here are the details of my troubleshooting steps for the last week:
Originally, I was receiving the following error when connecting from outside the network:
"Connection not established
Connection refused by remote interface"
Since that time, we have done a restart of the router and now have the current "connection rejected by remote interface." error message.
I can telnet to the public IP through port 3050 from my office and other outside networks.
I tested port 3050 on sites like YouGetSignal.com or CanYouSeeMe.org and they appear as open.
Other ports that we communicate on publicly are open and communicating.
The site has Kaspersky antivirus installed but all tests to connect via IBExpert while Kaspersky was in sleep mode behaved the same.
Installation of Firebird 2.5 to another workstation in the same local network, pointing to port 3051 (both in Firebird.conf and in the Windows Firewall and Router) show up as being open through Telnet and CanYouSeeMe.org but again, cannot be communicated on from outside via port 3051.
IBExpert works from a workstation in the network to the server
The server currently has no entry for RemoteBindAddress in the Firebird.conf
Wireshark shows that when a connecting from outside, there are packets coming through.
The TCP/IP test in IBexpert under Communication Diagnostics for the public IP as the host and the Service show the following Test Results:
Attempt connecting to XX.YY.ZZ.AAA.
Socket for connection obtained.
Found service 'GDS_DB' at port '3050'
Connection established to host 'XX.YY.ZZ.AAA',
on port 3050.
TCP/IP Communication Test Passed!
Database path, username, and password have all been checked multiple times.
locally on the server, I've changed security of the database.FDB and the security2.FDB to have Everyone, Full Control
At this point, we have a scheduled restart of the ISP's modem happening soon, although the fact that we have full TCP/IP communication over the port makes me doubtful that this is the issue.
If anyone can lead me down any recommended next steps to debug or to any tools that are available to help in this situation, that would be greatly appreciated.
This turns out to be a networking issue. We performed the following tests:
We performed a power cycle on the ISP's modem which showed no change in behavior
We connected a laptop directly to the ISP's modem but couldn't communicate to FB even with proper port forwarding rules in place on the machine and firewall.
We ran wireshark on both sides and on connection attempts, we found many attempts to connect with retransmissions that failed.
The technical team at the client side decided to install a VPN capable router and now we're good to go. From what we found there may be some kind of ISP blocking occurring as many of the tech teams remote services were failing to connect with similar behavior.
Hopefully this post helps people in the future with remote connectivity debugging, and all of the places you can look at when you're running into this problem.
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.
I developing a mobile application using React Native. For testing, I run the application on a physical iPhone which means pointing the device to the React Native server running on port 8081 of my laptop. As a remote developer, I often work in coffee shops, libraries, or other public places with WiFi.
My issue is some of these public places block traffic between devices so even if the phone and development machine are on the same network, the mobile device is unable to reach the React Native server.
One remedy I have found is to create a private network between the iPhone and my Macbook. While this solved the issue of connecting to the React Native server, it cuts my laptop off from a public internet connection so this is not a viable option.
Is there a solution to this problem which retains a public internet connection for my devices and also allows comunication between the phone and the React server?
https://ngrok.com allows you to setup secure tunnels to localhost that you can access on the public internet.
Test mobile apps against a development backend running on your
machine. Point ngrok at your local dev server and then configure your
app to use the ngrok URL. It won't change, even when you change
networks.
I am developing a backend server for an app using PyCharm. This runs on my laptop as 127.0.0.1:8000
I need to access this server for testing from an iPhone. This is connected by wifi to my local network to which the laptop is also connected.
I have tried entering http://mycomputer.local:8000 in safari on the iPhone but I get the message "Safari could not open the page because the server stopped working. I am using the real name of my computer instead of 'mycomputer'.
I am running OS X Yosemite so Web Sharing is not available in System Preferences.
How can I give access to the 127.0.0.1:8000 server to my iPhone?
When you say "backend server", what is the Python project written in? Django, Flask, Pyramid, something else?
I have some problem with my WAMP server and I downloaded from the official website. I wanted to use only for the local server (for Chrome), without WordPress, only for HTML/CSS/JS files. The servers (Apache, PHP and MySql) and the localhost webpage has оpen, but when I try to open my projects it's giving me the error:
This webpage is not available ERR_NAME_NOT_RESOLVED: and in details:
The server at problem%201 can't be found, because the DNS lookup
failed. DNS is the network service that translates a website's name to
its Internet address. This error is most often caused by having no
connection to the Internet or a misconfigured network. It can also be
caused by an unresponsive DNS server or a firewall preventing Google
Chrome from accessing the network.
P.S. OS: Windows 8.1 Pro N