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.

learn more… | top users | synonyms

-2
votes
0answers
25 views

PLC actively refusing connection

I have a problem building a TCP connection between a PC a PLC. In short words: The PLC is waiting for connection attempts of the PC. The PLC has a static IP and two Ports (3011 and 3021) I can ...
0
votes
0answers
22 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; ...
3
votes
3answers
5k views

WMI: How can I fix the port?

I need to use WMI for getting some information from my servers. But I have a server in DMZ, so I need to open a port in my firewall. I've searching and I found that WMI uses random port. How can this ...
0
votes
2answers
18 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 ...
0
votes
0answers
18 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 ...
-3
votes
0answers
30 views

How to open port 2106 and 7777 windows server 2008 [on hold]

How to open port 2106 and 7777 windows server 2008? I tried on the site in Networking / Firewall rules, but the port still does not open
-1
votes
1answer
31 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 ...
-1
votes
1answer
37 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 ...
1
vote
1answer
2k views

Configure Glassfish http-listener to Port 443/ 80

I want to configure the http-listeners in Glassfish 3.1.2.2 Build 5 under Linux. I changed the settings for the http-listener-1 to the port 80 and the settings for the http-listener-2 to the port 443. ...
25
votes
8answers
18k views

Is there an equivalent to ssh-copy-id for Windows?

Is there any equivalent or port of ssh-copy-id available for Windows? That is, is there an easy way to transfer SSH keys from a local machine to a remote server under Windows? In case it helps, I'm ...
-1
votes
0answers
9 views

Blocked ports/port forwarding to computer in my home network [closed]

I'm an electronics tech by trade, I know enough about networks/traffic/commands/etc. to do basic troubleshooting and know when I need to get help and what I'm looking for when I need it. So, I don't ...
0
votes
0answers
24 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 ...
0
votes
0answers
32 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 ...
0
votes
1answer
3k views

Open port 8009/tcp on Fortigate necessary?

A nmap scan of a Fortigate Firewall showed that TCP port 8009 open is. According to knowledge base articles this is only to download the client for ssl vpn. Is this port used for anything else, and if ...
0
votes
1answer
36 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 ...
0
votes
3answers
335 views

ProFTPD and firewall configuration for PassivePorts

I use ProFTPD on my server, and when I try to connect to my server with FileZilla or WinSCP, I have this error : Command: MLSD Error: Connection timed out Error: Failed to retrieve directory ...
-1
votes
1answer
22 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 ...
0
votes
0answers
13 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 ...
0
votes
0answers
31 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 ...
45
votes
5answers
228k views

Check if port is open or closed on a Linux server?

How can I check if a port is listening on a Linux server?
0
votes
0answers
4 views

I am not able to connect my software with my public IP [migrated]

please help me in port forwarding. i m stuck in the middle. suppose my local ip is - 192.168.0.103 and public ip is - 49.248.xx.xxx I have D-link DSL-2520U ADSL2+ modem router so here is what i do, i ...
25
votes
5answers
62k views

How do you free up a port being held open by dead process?

A colleague of mine recently ran into a problem where a process that had supposedly died was still bound to a network port, preventing other processes from binding to that port. Specifically, netstat ...
-1
votes
3answers
38 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 ...
0
votes
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 ...
1
vote
0answers
19 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 ...
1
vote
0answers
48 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 ...
0
votes
2answers
1k views

UDP/TCP ports on AWS ec2 public IP blocked

My goal is to receive/send UDP packet traffic on specific ports on my EC2 instance (on my eth0 private IP) via my public IP. I am asking because I have set my security group to allow all ...
2
votes
1answer
81 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
votes
0answers
25 views

How to enable port forwarding to get some TCP services

As image showing the scenario, I need a suggestion to get (http/https/pop3/smtp) access for the network(192.168.0.9) through the internet/Email server(192.168.0.123) placed on the other side of my ...
-1
votes
1answer
22 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
votes
1answer
38 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 ...
1
vote
0answers
42 views

FTP connection error with one service provider [migrated]

I’ve had FTP access to a number of websites for some years using Dreamweaver on a Vista PC with Norton 360. I’ve just changed to a Windows 10 PC with Norton 360 and transfer the Dreamweaver ...
-1
votes
1answer
47 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 ...
0
votes
1answer
15 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 ...
0
votes
2answers
40 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
votes
2answers
32 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
votes
2answers
326 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
votes
2answers
32 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. ...
0
votes
1answer
184 views

Port not opening even after adding security group rules on Amazon EC2 instance

I have an Amazon EC2 Linux instance. I recently installed SmartFoxServer in my instance. For that I needed to open 9933 port. So I just created inbound rules on Amazon EC2 Manager console website. My ...
0
votes
0answers
36 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 ...
2
votes
1answer
1k views

Enabling LDAPS: Cannot get to open port 636

I have a domain controller, which has Active Directory (AD). I want to turn on LDAPS on this AD, so that I could access the AD via secure connection. I have followed the following guide: ...
0
votes
0answers
8 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
51 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: ...
1
vote
0answers
21 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, ...
0
votes
1answer
298 views

nfssvc: Address already in use

I have installed nfs server using yum in my Centos 6.3 box. But I couldn't start it. Any idea? # /etc/init.d/nfs start Starting NFS services: [ OK ] Starting NFS ...
1
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 ...
2
votes
1answer
146 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 ...
0
votes
0answers
50 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 ...
0
votes
0answers
108 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 ...
0
votes
0answers
12 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 ...