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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1answer
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How to say when a service (any service) is available on a specific remote port

I'm using docker and docker-compose to compose a service which is a combination of several others. As the inner services are serving each other, there's a predefined priority by which they must be ...
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1answer
202 views

ZyXEL switch management port configuration [closed]

I'm a total newbie in configuring a network switch and I would like to know how can I configure the management port of a ZyXEL switch. I have a ZyXEL XGS3700-24 model and I set an IP address like 192....
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1answer
25 views

How can i assing ip_local_port_range for different network interfaces

I want to ask is it possible to specify different port ranges (ip_local_port_range) for different physical interfaces on the same PC. Or is it the same for all physical interfaces.
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1answer
64 views

Ephemeral port reuse for TCP connections to different IP addresses

I know that a web server running a website on TCP port 80 can receive TCP connections from many different IP addresses sourced from many different ephemeral ports. Can a client initiate multiple ...
2
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2answers
406 views

Non standard ssh port: should I edit /etc/services?

On a *nix system, when configuring ssh to listen on non standard port, should I also edit /etc/services to reflect that. I would think it should be done, so tools that use it (such as ufw) will ...
1
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2answers
81 views

Correctly opening port 443 to the internet

I need port 443 open to the internet on my server. When I check internally via netstat -tulpn | grep "nginx", I see that nginx is indeed LISTENing on that port. However, trying nmap -p443 mysite.com ...
1
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1answer
32 views

Apache forwarding to different private port

So I'm working with a fresh install of apache2 from the repos on Ubuntu 14.04.3. For unrelated reasons, the machine is already serving other things on port 80, so I want Apache to serve on a different ...
1
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1answer
123 views

Port Security / MAC lock with Netgear GS752TXS

Has anybody here has in use the Netgear GS752TXS (52 Port Stackable Smart Switch with 10GE uplink) with port security active? I would like to activate port security on specific ports to allow only ...
0
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1answer
17 views

Avaya switch - need to block port 25

Situation: In QA-DEV Lab environment I need to block port 25 for the egress traffic on AVAYA ERS5510-48T switch. Question: How do I do it using EDM aka Web Interface? Couldn't find anything in ...
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1answer
25 views

Cannot use browser on server PC [closed]

I have a (Delphi-Indy based) custom server running on a dedicated PC. It used to listen on port 80 but on later versions of Windows that port is already assigned, so now I use port 8080. My clients ...
1
vote
1answer
36 views

FTP or file share [closed]

I have a server hosted in a cloud running ubuntu server 15.10. I don't have access to all ports (only main ports) and I wanted to install some kind of FTP server or sharing server. I'd like to host a ...
0
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1answer
15 views

How to point domain to an web aps inside a Tomcat instance?

I have a problem, many days I can't resolve. 1. I have 1 VPS CentOS x64, 768 MB RAM, host at vultr.com, IP 45.32.45.204. 2. I have 1 website active codingvn.com (I use script to point domain to web ...
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1answer
56 views

SSH RDP Tunnel and Port Connection

Tried doing some research but can't really figure out the solution (or how to troubleshoot further) for this problem. Objective and Reasoning for setting this up: SSH Tunnel RDP from work to home ...
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0answers
94 views

Rtmplite and Open Broadcaster Software

I'm messing around with Rtmplite (found here), a Python implementation of an RTMP server. I'm doing this because I have an old computer running SunOS 5.10 that I want to use to stream a friend's ...
0
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1answer
62 views

Watchguard blocking ports

I want to block the whole Internet for particular hosts. In this case I used policy 'Any" which basically blocks every single port (tcp+udp I believe). In FROM field I put particular IP address from ...
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votes
2answers
98 views

When should a port 9040 used for? [closed]

A firewall rule for my web app ( python) is created with allowed protocol tcp:9040. I added my domain and created DNS zones, however I still don't get to see my app when I type my domain in the ...
2
votes
1answer
79 views

Nginx setup, 443 open but no respons on https://

So i just integrated my certificate and my nginx conf verifies it when i restart. When i do a: netstat -anp | grep 443 it returns: tcp 0 0 0.0.0.0:443 0.0.0.0:* LISTEN ...
0
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1answer
57 views

Nginx M/Monit password protect

I am trying to protect access to M/Monit web interface: Box: ubuntu 14.04 nginx 1.8.1 mmonit-3.5.1 I created a mmonit config file under /etc/nginx/sites-available: server { listen 8080; ...
2
votes
3answers
207 views

Unable to access postgres remotely from Azure VM

I'm trying to access a postgres database remotely and I can't for the life of me get it to work. I've installed a Gen 2 linux VM in Azure with Ubuntu 14.04 and installed postgres. SSH works remotely,...
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0answers
27 views

Port is listening but not Open

Port Info I am trying to open port 9121 for a minecraft plugin votifier... Currently the site that needs to connect to it can not. I am a total newb to this.. but this just makes no sense to me ...
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1answer
35 views

Make Apache work on a custom port using iptables only

My Apache/2.2.14 (Ubuntu) is running on port 80. I'm trying to make it listen on port 999 as well, but without making any changes to the apache config, only using iptables. I've added this to the ...
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1answer
59 views

Why when i use netstat while not connected to internet, it returns some ip addresses?

I read that this command displays network connections for the Transmission Control Protocol more info link netstat ,but when i not connected to internet and i turn off XAMMP server,it returns some ...
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1answer
72 views

How can i open correct ports on windows firewall for apache instead of using all?

I installed an Apache2 (8085 and 8086 ports) in a fresh windows 2008 R2 installation. But i found a problem opening ports. I opened the firewall for the program httpd.exe (full and correct path) for ...
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0answers
56 views

LetsEncrypt adding new Cert without killing Service

I use Let's Encrypt for my HTTPS certificates and every time I add a new cert or update a existing one I must stop my HTTP server on port 80 and start the Let's Encrypt script. I want to add new ...
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1answer
60 views

Using ports instead of HTTP request to tell server which site to serve

Are there any drawbacks to using ports to tell my server which website to return instead of getting that info from the HTTP request? Is there a best practice to decide which port range to use? As I ...
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1answer
36 views

Unable to connect to a port from a remote machine in Centos?

I am not able to connect to 9423 port of a machine from another machine though the local telnet localhost 9423 works. Here is my netstat -putna. Is there anything suspicious? 10000 works just fine ...
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0answers
330 views

Git Failed to connect to 127.0.0.1 port 8087: Connection refused

I'm installing the array database rasdaman, when I go to the step "make" , it begins to: git submodule update --init --recursive Cloning into 'third_party/googlemock'... but I don't know what ...
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0answers
31 views

Why can't I disable routing/route or ndp on OmniOS? (Illumos)

I'm trying to harden this server and eliminate unused processes. I've been reviewing the output of netstat -a and see several entries under UDP and TCP with State LISTEN. I've disabled most of the ...
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3answers
55 views

How to revert SSH changes back to default after changing port from default?

Got myself into a sticky situation. I've got a bare metal server in a DC which is reasonably far in distance from me. In any case, a few day ago I changed the SSH port from default to 6298 and now I ...
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0answers
10 views

Firewalld not opening port 25? [duplicate]

Lookst like firewalld is not opening port 25. I tried adding the smtp service, and port 25 separately as well, yet, I am unable to telnet to the server. Any tips? [root@host ~]# firewall-cmd --zone=...
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0answers
46 views

How do you allow all non-standard port traffic via forward proxy?

when the proxy is set for http and https traffic (say on a tomcat app), is this only for standard 80/443 traffic? I was wondering what ports you have access to when you set the following attributes ...
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0answers
56 views

Watchuguard access to external server from internal network

It looks, like my problem is common, I tried every single hint I found, but nothing is working. Here is my problem. I have an internal network behind Watchguard m400, with few VLAN's on ports. I ...
2
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1answer
146 views

Iptables are blocking WildFly10 on CentOS 7

I've CentOS 7 server without firewalld but with iptables installed. There's WildFly 10 is running with changed socket binding http port 8080 to 80 in standalone.xml. I'd open 80 port in iptables ...
-1
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1answer
45 views

Valid ranges for web site ports in IIS

In IIS for Windows, you can specify a port for a web site under "Edit Bindings". 80 is the default port and 443 is for a secure protocol. I'd like to get a complete list of valid port ranges that ...
0
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1answer
129 views

Open port 1194 for openvpn service

I am looking to open the openvpn service on my CentOS VM. When I run nmap -sU localhost -p 1194, the following is output: Starting Nmap 6.40 ( http://nmap.org ) at 2016-01-08 13:23 GMT Nmap scan ...
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1answer
58 views

SSH connection refused, probably server firewall, how to solve? [duplicate]

I'm trying to connect to my server via SSH. I get the (well-known) error: ssh: connect to host 12.345.678.910 port 2222: Connection refused So I first thought the problem was with my modem, but I'...
0
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1answer
17 views

Does using different ports allows for less congestion on server Apache

I have 4 different virtual host running on my server under Apache2. Until now some where listing on port 80 some on 443 and some on custom port like 434. Please disregard SSL issues here. My question:...
0
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2answers
68 views

firewalld: if I change the ssh service port, is it enough to allow the new port number, or should I add a new service?

I changed the ssh port to an arbitrary number, and noticed firewalld no longer allowed ssh login. I assume the port 22 is hardcoded in the ssh service definition for firewalld. Is it enough if I ...
0
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2answers
129 views

can't connect to tomcat/telnet to a remote host

I want to connect to a tomcat installed on a VM which is running on my laptop however I am not able to connect to it. I stopped the IPTables to ensure that this is not a firewall issue. I can ping ...
3
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2answers
422 views

iptables doesn't close port 3000?

I wanted to configure iptables on my server in such a way that only specific ports are open. Nevertheless I can access e.g. port 3000, if I run a web app on it. What could be the reason why 3000 is ...
2
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2answers
37 views

Block specfic port for the access of the application from outside with impacting the access to local host scripts [duplicate]

I have setup one application 'phanthomjs' that is running of specific port 6423 I wish that it should be accessible to script that are run locally on the box 'localhost', not accessible from outside. ...
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0answers
65 views

nginx location regex with redirect to specific port

I have a problem using nginx in combination with location regex and x-accel-redirect feature. Below is the description of my setup. I have nginx running on port 80 on localhost. I have a http server (...
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0answers
11 views

SOCKS4 can't handle connections all going through the same (open) port

I live behind a firewall and I managed to proxy anything I do to the proxy behind the firewall. The Port 27032 is open and still, if there are too many connection requests at a time, the proxy can ...
0
votes
1answer
403 views

GitLab not listening on ssh port

I've just installed GitLab CE on my VPS running Ubuntu 14.0.4 LTS via omnibus, made the following changes to /etc/gitlab/gitlab.rb and re-ran sudo gitlab-ctl reconfigure: gitlab_workhorse['...
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0answers
30 views

gitlab port forward tom foolery

We have a public-facing web server (CentOS 6 w/ Apache) that will need to forward requests, both from public and a private interface, to a separate host that's running Gitlab. For security purposes, ...
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vote
1answer
50 views

How to re-open the port?

I've a server with root access, I opened the 4022 port for ssh and it was working very well before, Today I try to connect on my server via ssh, but nothing happened, so I checked that via nmap and it'...
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0answers
89 views

Dumb Switch to Smart Switch - Ports going up and down, what's up?

I just switched from a dumb switch 10/100 to a smart switch HP 1920-24G-PoE, and noticing ports going up and down randomly. I can't see any obvious reasons why this is happening so am curious if ...
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0answers
227 views

Why would Windows Server 2012 not respond on ports above 6000?

This is a new question but similar to this previous one. I've inherited the management of a Windows 2012 Server (not R2) and I'm unable to get a response from any ports above 6000. I have services ...
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0answers
18 views

Too many internal connections with apache server on ubuntu/azure

My apache/wordpress server running on ubuntu 15.10. on azure is periodically running out of memory. One thing that is puzzling me is the large amount of apache processes even though there is no ...
2
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1answer
2k views

Port 80: connection refused. How to fix on Mac OSX? [duplicate]

I've noticed some issues with Apache virtual hosts on two Macs that otherwise have the same kind of set up (in terms of httpd.conf, vhosts, hosts etc.) On one Mac, virtual hosts are served without a ...