Running npm's http-server will sometimes launch a server accessible from a (mobile) device on the same network.
> http-server
Starting up http-server, serving ./
Available on:
http://127.0.0.1:8080
http://10.0.1.7:8080
http://123.456.78.90:8080
Hit CTRL-C to stop the server
and sometimes launch a server that is visible only from the same desktop.
> http-server
Starting up http-server, serving ./
Available on:
http://127.0.0.1:8080
http://10.0.1.7:8080
Hit CTRL-C to stop the server
How do I use http-server to launch a web server that's visible from any device on the same network?
The presence of http://10.0.1.7:8080 should by itself indicate that the server is visible across the network, no?
Why does the third address http://123.456.78.90:8080 appear only sometimes. Both launchings are identical.
All this follows npm install -g http-server of course.
Update 1:
http-server -a 0.0.0.0 is the default. (Hence it need not be specified.)
Update 2:
Using
python3 -m http.server --bind 0.0.0.0
is more predictable/reliable, but then one has to go muck around in ifconfig's output to find the IP revealed so nicely by npm's http-server.
It should always be available to anyone in the same network as your computer under your computer's IP followed by the port.
The third address, I assume, appears because at the time you were connected to two local networks at the same time, so that the http server would be available at that IP - which is also the IP of your computer, but in the second network.
So in short:
http://127.0.0.1:8080 is the IP that is used to connect to the server from WITHIN the machine it runs on.
http://10.0.1.7:8080 and any subsequent IP is the IP used to connect to the server from any device that is in the same network. As many IP's appear as how many local networks you are connected to.
This has nothing to do with npm, it's just how the network works. Python's http server just doesn't list the IP's for you.
Let's try to exclude some obvious cases:
What error message do you get? Do you see a connection timeout page in your browser?
Is your mobile phone connected to the same router the http-server machine does?
What is the IP of your mobile phone? (i can see it e.g. in my router)
You don't use any vpn on your other device, do you?
Do you see the right result when you call it locally?
Can you ping the http-server machine from any device within your network?
Did you try to use another port e.g 80?
Related
I have my stun / turn server running on local pc (CoTurn). It is tested on "https://webrtc.github.io/samples/src/content/peerconnection/trickle-ice/" and works. I have a domain name and configured the modem with public ip. I configured apache2 to make the site visible to the world. I have active and valid letsencript certificates. Everything works in short. But the test application starts the connection (the external pc communicates with the local via socket.io) but then the video is not seen and the console returns the error: ICE failed, your TURN server appears to be broken, see about:webrtc for more details.
The link of the application that I use as a test, because with my original I had no comparisons to make. First time with socket.io. But socket.io send and receive messages so these not appear a problem for now.
https://github.com/anoek/webrtc-group-chat-example
P.S.:
Ok. Server is behind the nat. My app (but linked app too) work very fine on local network (sorry I checked this point first before). These with my turn/stun server, than with public stun/turns google servers. This evidently indicates a bad setting of apache2 server or/and turn server. Where could I find a guide about it?
My server situation: myServerIpLocal-xxx.xxx.xxx.xxx -> nat/router/modem WithPublicIpStatic-xx.xx.xx.xx. I can see my sites from all the world, but turn server not work outside the local network. Inside local network work ok.
these my turn config:
listening-port=3478
tls-listening-port=5349
alt-listening-port=3479
alt-tls-listening-port=5350
listening-ip=xxx.xxx.xxx.xxx /*mylocal ip*/
relay-ip=xxx.xxx.xxx.xxx /*mylocal ip*/
external-ip=xx.xx.xx.xx /*my public ip on nat/ruter/modem */
min-port=49152
max-port=65535
verbose
fingerprint
userdb=/var/lib/turn/turndb
realm=mysite.com
cert=/etc/ssl/certificate.pem
pkey=/etc/ssl/private.key
dh-file=/etc/turn/dhparam.pem
no-stdout-log
log-file=/myhome/.turn/turn.log
lt-cred-mech
user=myusername:mypasswd
# Turn OFF the CLI support.
# By default it is always ON.
# See also options cli-ip and cli-port.
#
no-cli
#Local system IP address to be used for CLI server endpoint. Default value
# is 127.0.0.1.
#
cli-ip=127.0.1.1
# CLI server port. Default is 5766.
#
cli-port=5766
# CLI access password. Default is empty (no password).
#
cli-password=logen
no-sslv3
no-tlsv1
my old code on turn.conf:
lt-cred-mech
user=myusername:mypasswd
but turn work only locally .... probabily because I use:
sudo turnserver -L myPublicIp -o -a myrealm
at every coturn start command ....
actually I try not use the command "turnserver" and I try to use onlu sudo coturn start .....
basically in my turn.conf file I change these:
lt-cred-mech
user=mypasswd:myusername /***** mind the gap ;) *****/
these because my index.js file debug never see my external connection as authrized user ..... magically at these time my app perform webrtc multiple connection with every pc and mobile .... inside and outside my lan .... (I try connect my appa from phone in barcelona spain to other one in london with good result).
May be coturn wiki need to update?
Finally I would like to thank the serverfault and super-user guys who rejected my question. Since I had to make arrangements, I was able to acquire new and interesting information on this subject.
regards
Just a bit of background first.
I have installed coturn server in my local machine (Behind a firewall and with local IP).
I have created a port forwarding for cotrun server lets say my local ip is: 192.168.0.11:3478 is mapped with my public ip 10.1.10.212:3478.
When I use some online utility to check my public IP has this port open it? that utility shows that it is open.
I am trying to test this server using this fiddle: Code to test TURN server
I removed the stun configuration from it, and added my live ip and port. And when I try to test it, it says your TURN server is broken in console on web browser. And I see failed as output.
I have also used following commands to create a user from this link.
Wiki to Coturn Configuration
// created test user
sudo turnadmin -a -u test -r test -p test
// enabling admin support in web (not sure how to access it in browser)
sudo turnadmin -A -u test -p test
I start the turn server using following command:
turnserver -L 192.168.0.11 -a -f -v -X -r test
I have enabled the "TURNSERVER_ENABLED"
/etc/default/coturn
TURNSERVER_ENABLED=1
Screenshot of my about:webrtc:
Please find the below attached Screen shot for my about:webrtc. I am not sure what is missing.
EDIT-1
I can also see the incoming packet message processed, error 401: Unauthorized in the console of TURN server
EDIT-2
I resolved the TURN server related issue, added the turn server in client code as well, still facing issue, call is not going through,
Update
Here is what I found, the reason why it wasn't working earlier was due to a defective router in the network. This thing has harassed me for almost a month (however the internet used to work fine). But I found that there is a loss of packets and I switch to LAN cable I even avoided the firewall of the organization and there it was working just fine. Then I configured the rules in firewall and it started working as well.
A few issues that might be causing this:
The -X option requires an argument - the external IP if the TURN server is behind a NAT.
If you are setting all your parameters on the command line, you should include -n to ensure that it does not load an unrelated configuration file.
TURNSERVER_ENABLED=1 is to start turnserver with default configuration at system boot. You do not want this if you are starting turnserver manually from the command line.
https://github.com/coturn/coturn/blob/master/README.turnserver
" I have created a port forwarding for CoTurn server lets say my local ip is: 192.168.0.11:3478 is mapped with my public ip 10.1.10.212:3478."
Now surely you are aware that the private address-spaces in IPV4 are (private IP ranges):
10.0.0.0 – 10.255.255.255
172.16.0.0 – 172.31.255.255
192.168.0.0 – 192.168.255.255
So, your first IP is in the last private IP range, and your so-called "public IP" is in the first private IP-range. Now you need to find your TRUE REAL public-IP address to try to connect to it from outside. I would say that it looks like your ISP has you behind a NAT. So your TURN server might be behind two NATs. Which is kind of ironic situation for a server designed to help penetrate NATs of webRTC-clients. You might want to try to put CoTurn somewhere where it is possible for it to work like AWS (special case of CoTurn friendly NAT).
Just recently got (well with lots of help -- that even did the most of the work) CoTurn to work in cloud and on local Ubuntu ;-) (never stopped me from bragging though). Though there is troubling few srflx-call-successes yet (mostly local network or relay(TURN) calls). :-D
Okay, here's the situation I am in. I have a raspberry Pi 2 model B. I have Raspbain Jessie installed as the OS. I have Apache installed as well. I have a web server running and i am able to edit it and access the site from different devices on different internet connections. I want to be able to connect to my RaspPi through SSH on my MacBook Pro. I am able to do this while on the same network. My Pi is plugged into the router via an Ethernet. What i have tried is, logging into my router and reserving an IP for my Pi, i also entered my MAC address here. I have gone into the port forwarding options in my router and have it set up as: HTTP, TCP, Server address(the one i reserved) my Ipv6, and Start port 80, end port 80. Ontop of that i have gone into my /etc/dhcpcd.conf file. There at the end of the file i added
interface eth0
static ip_address=10.0.0.100
static routers=10.0.0.1
static domain_name_servers=68.44.180.118 2001:558:feed::1 2001:558:feed::2
The guide I followed is attached here and follows other guides i have seen.
http://www.circuitbasics.com/how-to-set-up-a-static-ip-on-the-raspberry-pi/
Yet when i try to SSH remotely i cannot get a connection, and when i connect on the same internet i can connect as normal. Please if anybody sees what could help .
Your router's firewall is probably blocking the ports for SSH, which does not use port 80 (in raspbian, I think its default is port 22). If you are going to take the risk of leaving your SSH open to the public, you should probably switch it to a different port other than the default before opening up a port on your firewall. The Raspbian Community has a thread on how to properly change SSH's default server port. You'll also need to make sure your SSH client is using the same port. You will need to leave 80 open for web, and also forward the SSH port, which ever you choose that to be (22 is the default).
I have installed XAMPP to run Apache server on windows,So the Apache server run great on LAN (Local Area Network ).
But i need to run the server ,so the public can access it from WAN
(Wide Area Network) .
I have forward HTTP port 80 on 4G portable router ,but no device can access the Apache server from Public (WAN)
** I have tried DDNS solutions also with no success.
The issue is most likely the 4g network itself. It seems they don't allow servers to wait on their network.
I'm trying to get Apache working on a GCE instance.
Following GCE's Quickstart guide, I did the following:
Created instance "my-instance" in "my-project" (CentOS image)
Installed httpd, verified it's running
Added the following firewall rule:
gcutil addfirewall http2 --description="Incoming http allowed." --allowed="tcp:http"
and did the same for HTTPS and ICMP
Verified through gce gui that these rules were added to default network
I can ping my instance's IP address but I can't get an HTTP response. I've tried through the browser, from a curl command - no dice. And it works fine when on localhost so I know Apache is returning the index.html page.
When I use curl from a remote host, the error is:
curl: (7) Failed connect to (instance ip addr):80; Connection refused
Thoughts?
I did some experiments to replicate this. In short, I believe HTTP port 80 may be blocked by iptables firewall rules on the local Centos instance. This appears to be the default behavior.
I have a GCE firewall rule setup to allow port 80 traffic to all instances. I created a centos based image via the Cloud Console (which is indeed using the v1 API). Logged in via SSH and started a web server on port 80. I was not able to hit the web server from my laptop. However I was also not able to hit it from another instance in my project. This lead me to suspect a firewall local to the instance rather than Compute Engine's firewall.
I ran this command (which drops the default reject of all ports for testing - this is unsafe to do for machines which are directly exposed to the internet):
$ sudo iptables -D INPUT -j REJECT --reject-with icmp-host-prohibited
After running that, I was able to hit my webserver from both another instance and my laptop. Note that this change is lost after restarting the instance. I don't know the correct procedure for changing the default firewall rules on Centos.
Please try a similar experiment on your instances, especially try to hit the web server from another Compute Engine instance, since service level firewalls do not block traffic between instances on the same network.