I need to know the difference between DNS name and IP address.
Context --> Client applications interact with ALB(application load balancers) which in turn interact with EC2 instance.
Now it is told that we get a fixed hostname with "ALB", so does this mean we get a fixed IP which is all our applications can connect to ALB only via one IP address ?
Regards,
Somen Swain
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I have a little server in my local network that provides several web services. Each service can be accessed by entering the ip of the server followed by the respective port.
Now I always have to remember which service is behind which port and it would be nicer to have specific subdomains forwarded to these ports. For example
ip:1234 -> foo.server.local
ip:4321 -> bar.server.local
How can this be done? I have pihole running on the server and had hoped to get this done using pihole but I was not successful.
What you are looking for is to set up a Domain Name Server (DNS). phoenixnap.com/kb/raspberry-pi-dns-server This guide should help.
You use a domain to direct to an IP:port combo. Like you could direct 123.12.12.12:8080 to some.thing and 123.12.12.12:8081 to any.address.
The domain name is arbitrary and masks the whole IP:port address.
I've been trying to configure Node-RED running locally at http://localhost:1880 to run on a static IP address that I would configured via my router's "DHCP Static IP Configuration" so that Node-RED could be accessible within the entire LAN.
How would I go about changing the IP address that Node-RED is hosted on, cause I haven't seemed to find any resources for it.
Would love to know the exact approach of running Node-RED on a LAN via a router; like should the static IP address be assigned to a particular device with a specific MAC address or can Node-RED reside on the router itself.
By default Node-RED binds to 0.0.0.0 which is the shortcut to say bind to all available interfaces (the log says to access via http://localhost:1880 because this will always be available). You should find that if you know the IP address of the machine running Node-RED and you enter http://ip-address:1880 from another machine on your LAN it should connect to the Node-RED editor.
You can change this bind address in the settings.js file (found in the userDir which is logged early on when Node-RED starts and is by default in ~/.node-red on a Linux/Unix machine). You can uncomment the uiHost line and change the IP address to what ever the static IP address of your host machine is. Under 99.9% of circumstances you should not do this and just leave it as the default 0.0.0.0
As for how you set your device that is hosting Node-RED to have a fixed IP address, that will be entirely dependent on the type of router you have, but usual approach would be to set the routers built in DHCP server to just asign a static IP address to that device as identified by it's MAC address. This means that you do not need to change anything on the device.
It is unlikely you will be able (or want) to to run Node-RED actually on your router, most home (or enterprise) routers are specialist devices and running a programming environment like Node-RED on them is really not a good idea from a security point of view unless you 110% know what you are doing.
Speaking of security, make sure you enable adminAuth in your settings.js before setting up any port forwarding on the router to expose Node-RED to the outside world. An unsecured Node-RED editor is likely to be quickly scanned by something like Shodan and promptly ushttps://nodered.org/docs/user-guide/runtime/securing-node-reded to host Crypto mining or much worse. Read the following carefully https://nodered.org/docs/user-guide/runtime/securing-node-red
we currently have a completed rails app and are looking to deploy on a local secured network. To have all devices on secured network access the site I bound my IP address with
bundle exec rails server --binding= <ip-address>
It works perfectly however we don't want to release the IP address of the computer running the app so how can I set an ip dress t o a host name? Thanks
im running windows 7 as host and ubuntu 11.04 as guest.
Which would be the best way to access a webserver on a guest from host via a defined url
(and vise versa)
e.g http://myvirtualbox and http://myhost
For now i have configured a network bridge, but the guest is gets a different ip assigned everytime. A simple solution would be to assign a staic ip and configure a name resolution localy on each machine, but maybe there is an other way (internal netwok perhaps?)
You can modify the hosts file on machines to map the hostname to the IP addresses of the machines (and change their IP addresses to static).
Or another more flexible (more hosts, faster integration for new machines) option: you're going to want to set up a DNS service, configure the machines to work with it, then add the IP of the DNS as a name server in your network adapter for the hosts to use.
That will be a more flexible, maintainable and scalable solution.
From the looks of it though, if you want a 10 minute fix, go for the first option. There are lots of tutorials on it.
I implemented red5phone with asterisk as external sip proxy. I tried to connect with 2 clients and there's definitely a different IP. When I saw at asterisk by using the sip show peers cli command, it displayed like this :
Name/username Host Dyn Nat ACL Port Status
1001/1001 10.151.32.26 D N 38841 OK (173 ms)
1000/1000 10.151.32.26 D 5060 OK (17 ms)
The host IP is the same, although it's a different client.
Can somebody explain this? Is it an error?
Is that IP address the IP address of the red5 server? Perhaps your red5 server is not passing the client IP addresses but its own to Asterisk?
it's your proxy ip address and that's fine because each user is identified by port number which is different