I'm trying deploy Juju on our VMware lab, where we currently assign VM IPs manually. However when bootstrapping the instantiated Juju controller VM gets assigned an IPv6 IP. As there is no route for this IP, juju cannot login to the controller.
Any pointers as to what configuration juju is expecting on the vSphere side, or any way to tell it which IP the controller should use?
Thank you!
The simple solution was to setup a DCHP server to assign IPv4 addresses. VMware IP pools don't seem to be supported.
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Developed client on one machine, now trying to get it to run on another in the local network (I access the client using a URL containing an IP address rather than a hostname). The client on the new machine does not seem to recognize that it needs to use the IP to formulate URLs.
I solved this by upgrading to angularjs 1.7.7.
I own a domain for a website (let's just use "X.com"), which for now I'm hosting on my home computer. This domain name points to my dynamic dns (x.ddns.net) name in the web forwarding of the domain name registrar as I have a dynamic ip and I haven't yet found a better way to make sure that the IP is consistently updated.
I recently changed the ddns address (y.ddns.net) and now whenever I try to access my site either from accessing the main domain name (x.com), or via typing in the local lan ip (192.168.1.56) I keep getting forwarded back to my original ddns address (x.ddns.net) and the website won't load.
I've looked through all the settings I can find both locally, with the ddns provider and with the (x.com) registrar to try to pin point where the forward takes place but I'm totally stuck.
Host system is Ubuntu, everything is up-to-date, nothing in /etc/hosts file pointing to the old ddns.
Thanks in advance for any help.
Try DDNS on Cloudflare
Only problem is that you need to move your domain to cloudflare dns servers which is totally free to use.
I am working on an angular app using the angular cli to set things up. Running the ng serve command spawns a server at this address <my_ec2_host_name>:4200. When I try to access the page on the browser it doesn't work (connection timed out error). I believe this is because of security reasons so I added the following rule to my security groups for the ec2 instance:
Port 4200 should now be accessible but I still can't get the page to load. Can someone think of how to get this to work?
Start angular with below command.
ng serve --host=0.0.0.0 --disable-host-check
it will disable host check and allow to access with IP
You can set up the host option like this:
ng serve -host 0.0.0.0
The steps you are doing are correct for opening a port via Security Groups in the EC2 console. Make sure you are modifying the correct security group, and make sure that your changes have been saved.
Your container may have additional firewalls in place, so you will want to check the OS documentation. For Example, RHEL uses iptables as a further security measure: https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/Security_Guide/sect-Security_Guide-IPTables.html.
That looks correct. Are you sure that your server is running and listening for connections?
You should ssh to that server and verify that the page can be loaded locally. Eg:
curl http://<YOUR HOST IP ADDRESS>:4200
eg: curl http://54.164.10.123:4200
You should be careful to use the public ip address (eg: IPv4 Public IP when you're in the EC2 console). I've run into problems in the past where I've got a server listening on one IP address (often localhost) and not the public ip address.
Also maybe a problem: Is your host inside a VPC of some sort?
My question is, how to connect to socket on romote mechine?
I can only connect sockets on same network..
I wrote a simple code (in c), that simulate a server (open socket and listen for client). in Mac.
I'm trying to connect this socket as a client from iPhone (with simple objectiv-c code).
If my internet on both, server and client, is on the same network (WiFi) and in client I trying to connect to 192.168.1.x, it's working.
But when, in client, I'm trying to connect via external IP (with the same port) connection is failed.
I never did this bofore. Maybe I miss somthing.. I've tried to turn my FireWall off. It did not help.
Thanks.
Edit: If it's not clear.. my Mac is connected by router.
In a setting like this, the "external IP" would typically be the IP of the router. In all likelihood you'll need to configure the router to forward the relevant port to the internal IP address.
It could also be the case that for the port forwarding to work, the request has to come in on the external (WAN) interface. This depends on how the router is configured. If that's the case, you'll need to make sure that you're accessing the external IP via the cellular network and not the Wi-Fi connection on your iPhone.
If you're connecting to your server via a local IP address (i.e., you're connecting to another machine on the same local router via a delegated DHCP address), then your issue is on the network, not the IP-stack of the local machine.
You'll need to look into your router settings ... many routers will block a number of services, especially those on custom ports, in order to prevent malicious attacks from sources external to the local network.
I would like to know what the ip address of a Silverlight 4 out of browser application. This would be the ip address that is on the internet, not the LAN ip. I am communicating with a WCF service that is NOT hosted by IIS but by my own Windows service.
I'd say the best way is to send a request off to a really dumb web service whose sole job is to return the IP address of the requester back.
It'd be async, though, so that may not be great depending on your scenario. And of course if the IP address changed (DHCP renewed, say) then you wouldn't know to go ask again.
Why do you want to know the client IP address? Maybe there's a way to solve your problem without needing to know it.