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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Is it safe to serve HTTP/HTTPS over ports 8080/8443

Due to an infrastructure limitation, one of the proposed solutions for serving an HTTP service to the world is to offer it over ports 8080 and 8443. My concern is that some users may not be able to ...
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0answers
86 views

How to proxy setup nginx with play and angularjs

I am learning play framework and angularjs with nginx. The play app is running on port 9090 and angularjs app is running on 9000. I am trying to proxy all requests to /app/* to the back-end Play ...
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3answers
228 views

apache2 change port from 443 to 7443

I'm using the default apache ssl conf file "default-ssl.conf" If i leave it alone using my self signed cert i can get to the page using 443: <VirtualHost _default_:443> ServerAdmin ...
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0answers
35 views

TCP and UDP ports usually blocked [closed]

Which are TCP and UDP ports most likely to be blocked? I refer especially to the client edge of the network. To start I guess SMTP (25), SIP (5060) for TCP, Traceroute (33434) for UDP.
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1answer
21 views

Setting up Apache as fallback for webapplication server on Centos

I run a web application server (namely, eXist db) which listens to port 8080. Unfortunately, eXist is not totally reliable. Therefore, I'd like to set up Apache 2.4 as a fallback web server: Whenever ...
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1answer
26 views

Web application access permission

I have a web application that uses SQL server . SQL server is hosted on a server and accessed using port 1433 . My question is will the user who is accessing my application required to be able to ...
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1answer
61 views

Change server manager rdp connecting port (azure)

I have been trying to establish a remote desktop connection to a azure server using the server manager that is included in the rsat. But I havent find a way to connect to the server because my server ...
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0answers
32 views

VPN Server not working on AWS

I'm running SoftEther on my home computer and after some basic configuration (Server 2012 R2, ports forwarded to server), everything works. I am able to use my computer as an L2TP server. I tried ...
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2answers
28 views

Scan LAN ports for devices other than computers

I have a fingerprint device attached to a LAN and I want to figure out the port number used. I could not figure out from its settings and configuration, so I thought to do a port scan over the ...
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2answers
43 views

wget only works when tcpdump is listening

I am running two Virtual Machines over the XEN hypervisor both with Ubuntu trusty (Linaro-Developer version) with the following simple bridge networking setup: Backend domain (dom0): br0 ...
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1answer
72 views

Port 80 is not accessible, although opened in iptables

I have an Ubuntu server running by a hoster and am trying to set up an nginx server with a config: user www-data; worker_processes 4; pid /run/nginx.pid; events { worker_connections 768; } http ...
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0answers
59 views

How to redirect subdomain to other port using Apache2 server with reverse proxy

Thanks in advance for your help. I have, in my home server running Debian 8, installed Deluged (torrent client) and a web UI to control it. I can access this web UI using the address ...
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1answer
23 views

how to limit number httpd process for port 80

So lets say I have 10 instances of httpd on port 80 and another 10 on 443. I run everything through 443, so I don't see the need to balance the connections (80 is used only to redirect to 443) How ...
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0answers
210 views

Endpoint creation doesn't work in Azure Preview Portal

I'm trying to open up port 443 on an ubuntu setup using the docker quickstart for wordpress + mysql. Because my VM is classed as "new" it only shows up in the new preview portal on Azure and doesn't ...
0
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1answer
19 views

Change NFSv4 Bound Port?

I need to use port 2049/tcp for another purpose. Is there a way to change which port NFSD binds to? I don't need NFSv3 or NFSv2 so I am not using rpcbind service. I cannot find that config option...
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1answer
88 views

Change the order that an IPTABLE CHAIN is read (Using Fail2Ban)

I have some experience using iptables and fail2ban. Both are working as they should, but I would like to optimize the way packets are "DROPed" when IP & port probing occur. Fail2Ban is doing a ...
1
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1answer
420 views

Getting 'ERR_CONNECTION_REFUSED' when trying to browse port mapped to Docker container

I have pulled a Docker image: $ docker pull ghost And run a container from the image: $ docker run --name test-ghost -p 8080:2368 -d ghost ...
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0answers
50 views

Is firewalld blocking return traffic?

I'm on Debian 7 trying to forward requests to other machines through firewalld and have the following setup: --HOSTNAME-- ----IP----- ------------Configuration------------- Firewall 192.168.0.2 ...
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0answers
37 views

interface not showing on port-channel (dell S5000 switch)

Our trunk went down due to a faulty cable, but when we had it replaced, the interfaces (speficially TenG 0/4 and /5) are not being shown on the port channel group even if they are physically up: Our ...
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0answers
27 views

Cant configure NAT in iptables

Есть два сервера с линукс. Первый выполняет роль роутера, он имеет два сетевых интерфейса, один из которых подключен к интернету, другой к локальной сети. Второй сервер подключен к локальной сети. ...
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1answer
72 views

iptables outgoing default policy is accept, but some ports appear blocked

I'm new to servers and iptables. I have a web app (happens to be bugzilla) running on my Centos 6.7 apache/httpd server, and it attempts to connect out to the web (updates.bugzilla.org) via port 80. ...
0
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1answer
46 views

only allow a specific port that can be connected by only one ip address at the same time

I have a open port, 40002, I want to limit that at the same time the port can only be connected by one ip address(not specific address). if there is an ip address conntecing to that port already, ...
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1answer
48 views

Tomcat and Apache parallel usage on different subdomains

I have just set up an Ubuntu server with Tomcat7 and Apache2. Apache is running on port 80, Tomcat on port 8080. What I want to do now is to redirect certain subdomains to Tomcat. mydomain.com ...
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0answers
98 views

Nginx listening on different port but not accessible from outside

OS: Ubuntu 12.04 I have both Apache and Nginx running. Apache is listening on port 80 and that is why I want to make Nginx listen on different port, in this example it would be 90. Below is the ...
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2answers
38 views

Firewall setup - Input and Output

Sorry for my english. I am having some troubles understanding if I should open ports via input, output, or both. For instance, let's take the basic HTTP port 80. To set up a standard client. If I ...
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1answer
63 views

Docker run command, expose port private only

docker run -it -p 8080 myimage /bin/bash I would expect the code above to expose port 8080 private. However when I run: docker ps -a It shows: 0.0.0.0:32770->8080/tcp How does one set port ...
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0answers
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How should I set up my sub-domain to allow it listen on a port for web socket transfer?

This may be a really beginner question, but I really want to make sure I'm going in the right direction before investing time in this. Heres what I have. charlieli.me @ 45.55.33.185:80 ...
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2answers
124 views

Do network administrators block outgoing traffic to not-well-know ports? [closed]

I've written a Java server to listen on port 49474. My client runs on Android phones all over the US. Of course, they will be connecting from a variety of networks: home, work, school, library, ...
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0answers
73 views

Error when viewing database mirroring monitor in SQL Server with non-default port

I have database mirroring set up (with witness) on SQL Server 2014 Standard. Both servers use default instance on a non-default port (not 1433). Mirroring works perfectly fine. However, when I try to ...
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0answers
89 views

IPA Server installation: Error with port number

When I am trying to install IPA server, I am getting the following error : IPA requires port 8443 for PKI but it is currently in use. Aborting installation I checked with netstat -tuplen | grep ...
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2answers
27 views

okay to allow any outgoing port for sending mail

I have a small app on my centos6.6 server i am running that allows the user to send an email on a custom port and I am allowing any port to be used. Is there any security risk for allowing this app to ...
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0answers
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Debian Openvpn port closed

Newbie in linux! there is already similar questions are asked here, but the solutions are not working for me. can somebody help me with this issue: I have been installed openvpn server on debian 8.1 ...
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2answers
82 views

How to list open but not used (by a process/program) port?

I have a VPS with debian wheezy installed on it. A firewall is active on the it with all ports not allowed by default. The firewall can be managed through the web interface of the provider of the VPS ...
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2answers
95 views

Multiple protocols on the same port [closed]

From my understanding, Facebook Messenger uses 443 for both HTTP and MQTT (or whatever protocol they may use now) traffic. That seems to be a good strategy, as in some very constrained networks only ...
0
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2answers
54 views

IIS can't use port 80 in w2k3

I have a w2k3 server running IIS and exchange. IIS is used for sharepoint interface. Recently, i had to install a self-certificate in the server to use IMAP over SSL with a tool named Selfssl. No ...
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0answers
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amazon server using RedHat EL 7 on port 3306 so that i can access mysql database remotely

I want to remotely access mysqld on port 3306 but when hen i telnet from public ip address i get a connection time out error. Whats happening here. But within the server telnet is working just fine ...
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1answer
286 views

Run Service Control (sc.exe) command on secure port

Our team runs the following commands to turn on and off Windows Services (e.g. JBoss Native) from the Windows command line as well as through source code in a program. It connects to a remote box. ...
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0answers
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IIS 7.5 - Not listening 0.0.0.0:80

I am using IIS 7.5 on Windows Server 2008 R2. From this server, I can access the localhost (standard IIS start page is displayed). But I can't access it from any other machine belonging to the same ...
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0answers
129 views

iptables open port to an LXC container with public IP

I've encountered a strange problem I have no idea how to fix. I'm trying to close all ports on my server, and open only the ports I need in the directions I need. Thus, I ended up with: IF=eth0 ...
0
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1answer
150 views

How many data channel ports do I need for an FTPS server running behind NAT?

As the title states, I currently have an FTP server accessible via FTP or FTPS (explicit) running NATed behind a router. The server is running Windows Server 2012 R2 with IIS 8.0 (I believe that is ...
0
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1answer
43 views

Only a certain subdomain accessing a certain port [closed]

Is there a way of having only a certain subdomain access a port? Let's say I have a Minecraft server running on default port 25565. I also have domain.com which is pointed to the IP of the server, ...
0
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2answers
125 views

Can't make nginx listen on nonstandard ports (3000, 35729)

This is on a fresh install of Ubuntu 14.04 running on a VPS. For example the following will work: server { listen 8080 default_server; root /var/www; location / { try_files $uri ...
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1answer
62 views

What might be using my smtp port on a new CentOS machine?

I'm trying to setup a simple email server using node smtp-server. I'm the only one that's ever accessed the machine (a CentOS 6.5 box on Digital Ocean), and I've only set up 2 http servers. I'm ...
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1answer
15 views

Which log file can I use for server port analytics?

Ideally I'd like to use piwik to track conversions from ads to server connections on port 5000 and port 5001 but I highly doubt that is even possible. I'm willing to settle for [ipaddress,time ...
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1answer
45 views

Load tomcat application via DNS without typing 8080

I am having a Amazon EC2 Ubuntu instance. I have installed LAMP server and tomcat 7. I also have application running in tomcat. Now, my URL for apache is - ...
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1answer
162 views

Can't access to a port (which is running Spring boot jar) via it's public ip

I have deployed my spring boot app jar to centos server with this command: nohup java -jar black-0.0.1-SNAPSHOT.jar > log_black.out & In my application.properties I set the server port ...
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0answers
95 views

create tunnel in order to access https via port 443

I have win machine that connected to Linux server 192.9.100.10 And Linux server has connectivity to the IBM blade center management GUI - 192.9.100.200 From my WIN machine I not have connectivity to ...
2
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4answers
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What exactly is going on when I go to localhost:8080 in my web browser? (Apache Tomcat)

I've spent my career doing all local application programming (C++ applications and whatnot). I'm trying to dig my feet into the web world now, however. I'm using Eclipse (Mars) and Apache Tomcat ...
0
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1answer
66 views

Choosing port numbers in the range 10000-19999

We have a Spring Boot application, which we control, running on given development and production machines. We use "standard" port numbers such as 8080 (Tomcat), 8686 (JMX) and the like. We don't ...
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1answer
16 views

Will tomcat connect to the port it is configured to as soon as it started?

I'm a newbie in this area. I want to know if I can listen to port 80 which tomcat is configured with as soon as the tomcat service has started. No applications have been deployed to it yet.