Why is Nomad listening on port 80?
How can I change this to listen to another port?
I can't seem to find anything on Google relating to this.
Edit: Opps I'm an idiot it wasn't Nomad that was listening on port 80... Can't delete this question either
According to this website https://www.google.com/amp/s/www.1e.com/news-insights/blogs/nomad-peer-peer-sharing/amp/ nomad uses http for p2p sharing. The default for this protocol is to use port 80 for communication, so that is probably why. I'm not sure how to go about changing it, but I would imagine it to be changeable.
Related
I wanted to install Jenkins on my pc, but it support 8080 port which is already used by Xammp server, Can Anybody tell me what alternative port I can use and it will worked?
I had already tried 8081,8443 but next java step it gives warning.
There are 65,535 possible port numbers. It could be your firewall blocking the ports. Apps will often use more than one port. One for inbound and one for outbound etc.
My ASP.NET Web API is bound to localhost:
startOptions.Urls.Add("http://localhost:8080");
If I now call netstat -a I would have expected to see something like 127.0.0.1:8080 but it looks like my binding works on all IP addresses on the local machine:
Active Connections
Proto Local Address Foreign Address State
TCP 0.0.0.0:8080 MyComputer:0 LISTENING
TCP [::]:8888 MyComputer:0 LISTENING
Do I have to worry about external (e.g. non-localhost) connections?
"Yes", since this port may be routable by others you may need to worry about external connections, but it depends on your specific environment. Use the https://en.wikipedia.org/wiki/Localhost loop back address, 127.0.0.1 and then you won't have to have external access concerns:
startOptions.Urls.Add("http://127.0.0.1:8080");
Your question has to do with the default route, https://en.wikipedia.org/wiki/Default_route.
FYI: You may want to have a configuration that switches this when you deploy so it can have access when you want it to...
Additionally, https://ifconfig.co/port/8080 may be able to help you determine if your port is exposed...
0.0.0.0:8080 is also a DroidScript address used for "no touch" mobile phone "hacking" it is not solely limited to DroidScript as many users of JS use it across a wide variety of web tools
Hello today configured vps on Google Cloud and put Vesta control panel, but the problem is not open one https that is, and the ip server and the domain itself does not open on https. Set up Google Cloud firewall and opened ports 80,443 but https does not open the site itself is not the ip of the server. Checked through online services port 443 is closed but settings of the server and a firewall of Google and ip tables say that port 443 is opened (checked by several services port 443) and in the browser through ip of the server and the domain on https do not open. Please tell me how to open port 443?
Same with ports 8443,8080.
I am not able to comment but here are some steps that might help to isolate the issue:
Check to see if the port is open or closed or filtered using nmap
nmap [ip_address]
Firewall rules are defined at the network level and therefore make sure that you follow this document while creating the firewall rules to allow incoming traffic on TCP port 80 and 443 (same for other ports). In this document in step 11, choose " specified protocols and ports" and enter tcp: 80, tcp: 443.
As you previously stated, you need to make sure there is no firewall running inside the VM blocking those connections.
You also need to verify if the application running on your vps is listening on port 443. To check this, try with this command.
sudo netstat -ntlp | grep LISTEN
In the output, if you don't see the application beside port number, check if your vps is rightly configured to ports for your application.
I was having the same issue with NGinx. And Found the root cause finally to be the Firewall (GCP VM Firewall) having a lower priority for the rule. ie: I had 65534 (which is super low priority) for the "Ingress 443" rule. Which did block the traffic coming into the SSL. Instead when I set this rule to 1, traffic started flowing and issue sorted.
What finally helped me was https://cloud.google.com/vpc/docs/using-firewalls
Thanks #Md Zubayer for the tip.
I currently have a small socket server that I'm trying to convert to a web server. Basically it dumps XML to anyone connecting to it. At the moment, it's not a web server as it listens to a non-web port (1337).
I know that both 80 and 8080 are accepted web ports, but none of those are free on the machine I'm going to use. Are there any other web ports available? Or how do I configure a windows machine so that e.g. port 1337 is web?
Well for the most simplistic method append :port to your URL such as http://192.168.1.1:1337
I may be misunderstanding your question though.
You just start listening on the port. Viola. It's a server. That simple.
Oh, and you have to tell your audience which port to use.
To be more complete: it's a web server not because of the port, but because of the language spoken on that port. You can serve HTTP over any port, which is one of the ways back-door-style malware gets around misconfigured firewalls.
What you probably need is to implement (in order to implement an easily usable web service, which I assume is what you are aiming for) the http protocol and probably SOAP or REST, not select a port number. Tell us what language you are using, and we might be able to suggest a suitable framework.
What #fictoris said. Or setup your webserver to redirect http://myapp.com to the correct port as well.
There's nothing really magic about the ports you are talking about. And really it's just port 80 that's standard HTTP. 443 is the standard for secure HTTP though (HTTPS).
If you have to run on a non-standard port you must specify that port in every (non-relative) URL: http://localhost:13828 ...
If you need to use port 80 you might be able to redirect the incoming client depending on what demain it requested though.
Here is a list of all the TCP/UDP ports that have official designations and the hi-jacked, oh I mean unofficial ports that are known. Hopefully that will give you an idea of what is going on "out there."
Note the "Dynamic, private or ephemeral ports: 49152–65535" section at the bottom.
I have a local server written in C++ listening to inbound TCP connects using plain socket ::accept() and UDP recvfrom(). I have two problems with this that I wish to solve:
Can I programatically make Windows let me open the accept socket without it automatically being blocked by the Windows (software) firewall?
Are there any ports I can use that will allow my packets to pass through both Windows firewall and external firewall? Port 80 is often taken by things like Skype, but are there others? Will most external firewalls typically by default allow incoming UDP and TCP connects on port 80?
Thanks!
In general, network routers need Port Forwardng enabled for the listening port, and firewalls need the listening port opened. If you are using a uPNP-enabled firewall/router, then you can dynamically set up those settings programmmably via the uPNP API. But more times than not, uPNP is either disabled or unavailable, requiring manual settings by the firewll/router admin.