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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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Nmap reporting open http-proxy on 8080, but none is running

While executing the following command from my Mac OSX: nmap -PN server.com It reports the following: Starting Nmap 7.70 ( https://nmap.org ) at 2019-04-18 16:14 EDT Nmap scan report for server....
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1answer
29 views

Failed to start postgresql database [on hold]

Trying to setup Postgresql on Centos7 with WHM and CPANEL Its installed fine but when I try to start it I get the following callback -- Unit postgresql-9.5.service has begun starting up. Apr 18 15:54:...
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1answer
26 views

cant connect socks proxy server on cent os

I Install ss5 or 3proxy on cent os (VPS).I Check port 1080 with port checker online and get port 1080 is open but when I try to connect to proxy server I cant connect. firewalld is removed. SERVER ram ...
2
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1answer
72 views

How is it possible for a Linux Redhat server to run both IIS and Apache on port 80?

I recently got an assignment of pen-testing a remote server. Upon Information Gathering I got the following: host1 ip 132.56.34.23 port 80 IIS 7.0 host2 ip 132.56.34.23 port 80 IIS 7.0 host3 ip ...
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0answers
13 views

Redirect all ports of a sub domain to another host in my network

I have a domain linked to my VPS server, I have created a subdomin that also linked to the same server, I just want that whenever their is a request on my subdomain at any port it redirect to my ...
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0answers
15 views

Apache refuses connection from other computers

It's been two days that I try everything I think to solve my problem, but there I really do not see where it comes from. On a Centos 7 server I configured Apache to listen on ports 80 and 5555. It ...
0
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1answer
20 views

How to set a port to listen on udp instead of udp6?

I have an application that listen on udp port 1234. I already added the udp/1234 in my firewall and checked if the port is already added to the allowed ports. When I checked if the port is listening ...
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0answers
16 views

iptables rules for dockerized prometheus stack and swarm

OS: ubuntu Everything runns in containers (run via docker stack deploy) 2 servers running separate swarm server - running grafana + prometheus (ip 1.1.1.1) server - running node_exporter + cadvisor (...
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1answer
35 views

Does having a URL that contains (and displays) a port can lead to some security risks?

I have a server that contains Filemaker Server on port 80/443 and a website on port 1111. By creating a DNS for the website, I have the url https://mydns.xx:1111/. Showing the port is not really a ...
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1answer
13 views

rpcinfo -p shows different output depending on client?

I'm troubleshooting an NFS issue, and found something unexpected: rpcinfo reports different output depending on what client I run it from. What would cause this? (inherited server; no idea if it was ...
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56 views

Azure linux VM Port not open

Im trying an ubuntu linux vm on azure, and need port 9001 to be open on inbound. but cant reach the vm from outside on other ports than 22. I have enabled firewall in linux vm and have opened those ...
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0answers
27 views

Securing Kubernetes API port

We have a Kubernetes cluster (kube-)sprayed over 4 nodes running CoreOS. Our most important services will run in this Kubernetes environment and we are trying to do everything we can to make it as ...
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0answers
51 views

Make wireguard listen on multiple port

It there a way to make wireguar listen to multiple port ? Like listenning on 80,53,and 4444. I'm looking to achieve this without running multiple wire guard separate interface, to prevent having to ...
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0answers
34 views

nginx won't listen on non-standard port

My organization has a server that is just for handling redirects of retired sites (redirects-myorg.org). We've just retired a website (widgets.org), and I am adding the retired site to our redirects ...
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0answers
14 views

How to expose port for a downloaded nginx container

I have downloaded an nginx container and now i want to go to a browser and type http://localhost:80 and i should be able to see the NGINX webpage. I know you have to do this while you are downloading ...
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0answers
27 views

Is there a way to reserve a tcp port for an executable on a Linux Server?

I am designing a security policy for a server program on Linux. I wish to reserve a tcp port number-say 8888, to and only to that executable of the program to listen to. Then I could turn the program ...
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0answers
20 views

Windows server 2019 not recognizing 1 NIC port

So I am running a Dell Poweredge R430 in it I added a NIC: BRCM 10Gb BASET 2P 57406 Adptr with two slots. First I had an installation of hyper-v server 2016 which recognized both slots of this NIC ...
2
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1answer
76 views

Loading website on port 1433 without using “:1433”

Boss wants me to set up a website so that by typing "https://www.example.com" (no :1433) in the address bar of a web browser, the request will go through port 1433 on a Watchguard Firebox to an apache ...
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0answers
52 views

Failed to connect to host with RKE

I have the following cluster.yml file: nodes: - address: 172.16.20.22 user: rke role: - controlplane - etcd - worker When executing rke up, I get the ...
3
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2answers
38 views

how does an OS route messages sent to the same port to different sockets?

This is something I've never quite understood: A service offered by a server can be uniquely identified by its IP address and port, for example 1.2.3.4:22, but multiple clients might connect to the ...
3
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3answers
189 views

cannot log in to the server after changing SSH port [closed]

I am using putty to connect to my Ubuntu 16.04 VPS. I decided to change the default SSH port from 22 to 443. I did this changing the line Port 22 in /etc/ssh/sshd_config to Port 443 Now when I ...
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1answer
25 views

Strange NMAP output

I am trying to scan TCP port 8092 of a host using nmap 7.60. When I execute nmap without root privileges it says that the port is filtered, but if I try to scan it with sudo it tells me that the port ...
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1answer
45 views

Why does nmap show port 25 as open? Server's firewall should block port 25

nmap 7.70 executed remotely shows the server's port 25 as open. However, the firewall on my VPS server only opens ssh, http and https services. On the laptop: nmap x.x.x.x Not shown: 996 filtered ...
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2answers
77 views

Red Hat - internal port forwarding blocked

I'm working on Red Hat, and I'm trying to set up a web service. I've implemented a port-forwarding from 80 to 8080 to access tomcat8 service. firewall-cmd --add-forward-port=port=80:proto=tcp:toport=...
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54 views

Bind Set Port for Forwarders

According to http://www.zytrax.com/books/dns/ch7/queries.html#forwarders the port can be specified after the address. However when i try to set it to forwarders { 127.0.0.1 2053; } named-...
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1answer
32 views

A good reason why docker containers shouldn't use standard ports?

I don't have much practical experience with containers, yet I see a lot of people using alternative ports to deploy their services. As a consequence, here's a very basic question: Is there a good ...
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0answers
26 views

Why am I able to access Nodejs server through port 80 even though it's running on port 3000 and nginx is stopped

I am not very familiar with configuring a web server. I have a node express server running on port 3000 on an AWS EC2 instance that is running Ubuntu 18.04. In AWS management console, I have a ...
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2answers
65 views

Can't access AWS EC2 at port 8545 for running app

I stood up an EC2 t2.micro for the sole purpose of hosting an Ethereum test network on port 8545. Long story short, I SSH'd into the linux machine, installed NVM, the latest version of Node, and the ...
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1answer
70 views

What is “fmsascon” as a network layer L7 protocol & what is port 16001 typically used for?

I'm responsible for an Azure network and various IaaS and PaaS services. I'm looking at Azure Network Watcher Traffic Anaysis that indicates ports receiving traffic including: L7Protocol: fmsascon ...
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1answer
40 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
45 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
57 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
43 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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1answer
61 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
48 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
82 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
26 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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36 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
23 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
29 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
30 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
73 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
60 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
152 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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50 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
28 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
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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
82 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
41 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 ...