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Questions tagged [port]

Port is a generic term that can refer to port number (software related term), and computer hardware port. Here, questions referencing this tag refer to port numbers.

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Technicolor TG789vac - Cant open more than one port [duplicate]

I have been trying to open ports 7171 and 7172 on my Technicolor TG789vac router. But for some reason they are not being opened even tho I have added the rules on the router page. 80, 7171, 7172 ...
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1answer
30 views

Should I enable port 587 for mail relay access?

I run a virtual email server using Postfix that forwards emails addressed at domain.com to specific Gmail / Hotmail accounts. This same server also acts as a mail relay, and uses saslauthd to allow ...
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1answer
40 views

In virtual hosting via IP address and via port number, how does a web server find out the IP address and port number?

In virtual hosting via IP address or virtual hosting via port number, a web server decides which web site to serve based on the IP address or port number that a request was sent to. When a web ...
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1answer
41 views

Port 8089 is blocked

I am trying to Port Forward 8089 and I am having quite a bit of trouble doing so! Looking for a possible hint at what I am doing incorrectly... I myself tried setting this up a number of times then a ...
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3answers
2k views

When specifying a “host name”, do we still need to specify a port?

https://en.wikipedia.org/wiki/Virtual_hosting says Name-based virtual hosts use multiple host names for the same IP address. Does a "host name" correspond to an IP address or a pair of IP ...
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1answer
38 views

When several name-based virtual hosts on the same web server share the same IP, do they necessarily share the same port?

https://en.wikipedia.org/wiki/Virtual_hosting Name-based virtual hosts use multiple host names for the same IP address. A technical prerequisite needed for name-based virtual hosts is a web ...
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0answers
17 views

How do I control access to my license server?

I manage a license server (for Ansys/NX/MSC products) for my team, that's currently fully accessible on the web. Meaning that any one who knows the name of the server, can access these licenses. How ...
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0answers
20 views

AutoFS not mounting NFS on non-standard port

I have a little problem with AutoFS and having a NFS share on a different port. It works fine with another share on the standard port and the not working share works fine when i go the manual route ...
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1answer
35 views

Can't access to admin console after forcing wildfly 14 to use ssl on the port 443

I deployed wildfly to my server on a subdomain and Nginx is a reverse proxy.To secure my connection I forced wildfly to use https through 443 with a letsencrypt ssl certificate : In the standalone....
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1answer
29 views

Why does firewall-cmd throws error “ALREADY_ENABLED” but is the port not listed when calling firewall-cmd --list-ports?

Using CentOS 7, I am trying to use firewall-cmd --zone=public --add-port=443/tcp --permanent to add 443 to my allowed ports. Unfortunately this throws error ALREADY_ENABLED: 443:tcp. But when I use ...
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1answer
73 views

Bandwidth usage reports/statistics but by port/protocol

I've searched and tried many different CLI network tools, web interface network monitoring programs (that usually use RRDTool), and various iptables rules, but I can't seem to find a solution for what ...
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0answers
37 views

Why is website served via a port number not available to certain computers?

Why is website served via a port number not available to certain computers? I am serving a Node.js website on a specific port of my web server, i.e. http://tanguay.info:49902, which, up to now, has ...
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0answers
21 views

Making iptables port forwarding access from LAN

I have rule in my config like below: $IPT -t nat -N FOO $IPT -t nat -A FOO -i eth0 -p tcp --dport 444 -d public_eth0_address -m conntrack --ctstate NEW,ESTABLISHED,RELATED -j DNAT --to-destination ...
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0answers
28 views

Redirect SSH connexion to another port in function of (sub)domaine

Let me explain what I'm trying to do ; first, I don't want a solution like editing .ssh/config to write a default port for specific domains client side, my question is specific to server side :) The ...
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1answer
12 views

Open a randomized port on a cluster of machines

I'm using Apache Spark, a Java application, to create a cluster of machines. The processes that are launched try to communicate with each other across randomized ports. Is there a way to script the ...
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0answers
21 views

(Debian) Running two mail- and web- servers at the same time in different docker containers

I´ve setup a Debian Webserver with two docker containers: - a laradock container (laradock.io - Documentation availible at laradock.io). - a mailcow container (mailcow.email - Documentation ...
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0answers
22 views

Tomcat localhost private ip link is not accessible by another PC in same network

My PC has the IP 192.168.1.185 The URL http://192.168.1.185:8080/projectname is not accessible by another computer in the same network having the IP 192.168.1.135. I have disabled IIS already ...
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3answers
55 views

How do I hide a specified port from an URL?

I have one server on example.com, and I have another one on example.com:10001. When users try to reach example.com:10001 they end up on example.com:10001/index.php/login and that's how it should be. ...
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1answer
32 views

UFW port open but connection still refused

I have mongodb running and I want to access it from an external machine Output from ufw status Status: active To Action From -- ------ ---- ...
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0answers
48 views

Set a specific port for javaw.exe and java.exe

I understood the differences between java.exe and javaw.exe by this link. I know that javaw.exe and java.exe belongs to Java from Sun Microsystems (Run time library), they have some dynamic ports in ...
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0answers
31 views

Set a specific port for SSAS

I'd like to force the SSAS (SQL Server Analysis Service) instances to use from a specific port instead of using dynamic port because of the firewall policy. According to this link The default port ...
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1answer
23 views

duplicate 127.0.0.1 port, specifically for mongo

I would like to duplicate port 127.0.0.1:27017 to 127.0.0.1:27018. My initial attempts were using ip tables: iptables -t nat -I PREROUTING -p tcp --dport 27018 -j REDIRECT --to-port 27017 (And ...
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0answers
27 views

Any way to customize/limit/set Microsoft Remote Desktop Licensing service port?

Recently I had a weird problem on one of the Windows Server 2016 servers where Microsoft Remote Desktop Licensing service / TermServLicensing occupied port 1541 & prevented another critical 3rd ...
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1answer
72 views

The dynamic ports are constantly changing, How do set them in the firewall? [closed]

I'd like to block unused ports on my server so I monitor the ports with CurrPorts and I understand some processes like lsass.exe have some dynamic ports e.g 49158,49976,... These ports might change ...
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1answer
36 views

Database running on IIS port 8080 accessible locally on server but not when connecting externally without VPN

I have an IIS server that has a Database system (Universe) that runs on port 8080 and when I access the port using "localhost:8080" or when connected to company vpn "Servername:8080". I can see data ...
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0answers
19 views

Is it possible to redirect traffic sent to an additional IP on the machine to a specific port?

I have a machine that acts as a gateway between a network (say N1) for other machines behind it on a different network (N2). I have to use a special application that listen on a specific port. So a ...
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2answers
81 views

Get SSH port of an ec2-instance [duplicate]

In my company, we have an ec2-instance, of which I didn't have any knowledge about. My predecessor would have created that, and didn't provid any information about that. Now suddenly something ...
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0answers
7 views

hosting wcf with port is not accessible remotely

I'm hosting multiple wcf services in Windows Server 2012 to consume remotely. hosting wcf over port 5959 is not accessible remotely. for that I have created an inbound windows firewall rule for the ...
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0answers
14 views

ngrok specifiy forwarded ports

In ngrok, I can connect to my local host like this: http://123abc.ngrok.io -> localhost:55914 If I want to connect to say http://123abc.ngrok.io:2001, will that be routed to localhost:2001 or ...
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2answers
46 views

What are the common ports/ranges that standard Windows processes will listen on?

Is there any documentation that I can reference that outlines what ports or port ranges that most standard Windows processes will listen on? For example, if I saw wininit.exe listening on TCP 16000, ...
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0answers
203 views

How to find out what is blocking a port in Centos 7?

I'm trying to make a mailserver with postfix/dovecot but I'm stuck. The problem is I cannot connect to some of the ports I want open, for example 587. As far as I can tell the port is open and ...
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0answers
56 views

Why is knockd with default knockd.conf not working?

System: Ubuntu Server 18.04, stock install, nothing tampered with. I cannot get knockd to work, even though I'm using the default knockd.conf and simply trying to get it do to anything. I can't see ...
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1answer
338 views

Unable to connect to remote host: Connection refused [duplicate]

I have created vm instance in gcloud. And setup firewall rule to allow connection from port 5000.I added network tag to my vm instance. But if i test the connection by teneting to port 5000 I get ...
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1answer
85 views

Hosting gitlab server will conflict with port of sshd

I want to host gitlab on one of my servers, and it seems that gitlab needs to listen to port 22 for ssh (git ssh protocol). But the problem is my host machine already uses port 22 for sshd and I need ...
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1answer
446 views

Nginx proxy one port to multiple ports

I have only one port opened in firewall and multiple services running. I want to redirect a request based on URI to different application. For example if I am accessing http:example.com:8443/test1 to ...
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0answers
106 views

Mount NFS Share In Windows On Non-Standard Port

I have an NFS server on a Linux machine bound to a non-standard port. I can map it on another Linux machine using them command: mount -v -o port=$PORT $IP:/ /$MOUNTPOINT, but I can't seem to find any ...
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3answers
141 views

why linux assigns ephemeral ports out of its range

I have a server running mysql, ssh and other services. I want to see the range for ephemeral ports available for the OS running: cat /proc/sys/net/ipv4/ip_local_port_range which returns 32768 - ...
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1answer
23 views

How to open a port in Linux for other users in same network?

I have an application running that is listening on port 7896. I can access that using localhost and port 7896 but other users in the same network can't access that using my IP address and port 7896. I ...
0
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1answer
200 views

Run HTTP server on port 9090 (Node.js) and use Cloudflare

I wonder how I can add to Cloudflare subdomain to a specific port that can work in the browser. I open a socket using socket.io on port 9090 and have an index.html file server.listen(9090); if I ...
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0answers
42 views

AWS EC2 Nginx available at every port only not 80

Currently, I'm new to Nginx and hope that you can guide me to the right direction. I've tried to follow nearly every guide I found online, including uninstalling and reinstalling each time configs ...
0
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1answer
21 views

Cant open ports in VPS Win Server 2016(AWS)

i'm trying to open ports 7171, 7172, 80 in Windows Server 2016 at AWS. I already opened them in Firewall, then i tried to turn firewall off but i still unable to acess my xampp website through port ...
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0answers
549 views

how to find the process which initates transmition

I found that something is trying to reach 5353 port. My firewall kicks this after all ACCEPTs - (policy DENY, and some ACCEPTS - everything which doesn't fit to ACCEPTS is logged) [2206881.340582] ...
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0answers
40 views

Serve content from a port like a Apache2 directory

I have a Node.js/Express website running by port 3000. I would like to serve it as a land page of my server by the root (/) not using the port. I have a few limitations as I have also in the same ...
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0answers
45 views

How to set the mode of port? access, trunk, general

I tried to set (change) the mode of my port, and I read the book and followed it step by step. But I still get a lot of error. There were what I input. (Routing) (Interface 0/3)#switchport mode ...
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2answers
41 views

Log non HTTP requests/traffic that hit port 80 and 443 in Apache?

I'm trying to log all traffic (IP address and data whatever form of data is received) that hits a specific port (80 and 443 in my case) if it isn't valid for that port. So, for example, if someone ...
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1answer
27 views

Trying to remotely access my machine after SSH port has been closed

I was trying to run a license server on my Ubuntu machine, through port 27020. I was using my server remotely, through an ssh connection, since I'm currently abroad. For one reason or another I did ...
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1answer
88 views

SMTP credentials for one server on another server - how does it work?

I have two VPS on DigitalOcean: example.com for my web page and mail.example.com as an email server. On mail.example.com I can successfully send and receive emails using terminal or a Roundcube web ...
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0answers
6 views

How to start and stop individual node instances on linux hosting server? [duplicate]

On my linux shared hosting server, I have been hosting a node.js site like this: node server.js & which I could access at: http://nnnnnnnnnnn.com:49998 and when I want to stop it I use the ...
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0answers
23 views

reroute request by port in iis7

I'm trying to set a webapp in iis 7 to forward requests to a specific port to a controller inside the website. I need that every request sent to http://server:6035/{QUERY} will be rerouted to http://...
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0answers
85 views

Docker and csf when running outline server

I've installed Outline (uses Docker) on my server while I have csf firewall enabled. the problem is I don't know what incoming and outgoing ports should I add to csf whitelist.