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
148 views

How does Windows 2008 specifically select ephemeral ports (does it test to avoid conflicts)?

I have a server application which uses permanently connected incoming ports within the range that W2k8 now uses in the IANA recommended range of ~49000-65000. (For legacy reasons it's extremely ...
3
votes
1answer
806 views

Nginx Not Logging https / :443 Requests

I am in the process of trying to configure a Server with https and for some reason it seems the requests are not hitting nginx at all. I have everything working properly but once I go to enable ssl ...
2
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1answer
627 views

Apache keeps adding 8080 port by itself while I'm telling it to use 80 only

Here's my httpd.conf. Inside it, I have the following in place #Listen 12.34.56.78:80 #Listen 127.0.0.1:8887 Listen 127.0.0.1:80 #Listen 127.0.0.1:8080 Listen 192.168.1.4:80 and I have a .htaccess ...
2
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1answer
641 views

Allowing a specific IP Address through a blocked port in Windows Server 2008 R2 Firewall

I have created an Inbound rule to block port number 1433 however I need to allow my static ip address to access this as I use SQL Management Studio to connect to databases on the server. I have ...
1
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1answer
138 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: ...
1
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1answer
57 views

Hadoop namenode port getting blocked

I have installed 7 VM instances of Ubuntu 14.04 LTS servers. First instance runs the namenode service and all other 6 nodes run datanode service.I think my NameNode is getting crashed or blocked due ...
1
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1answer
440 views

Node.js websocket error “Error: listen EADDRNOTAVAIL Error: listen EADDRNOTAVAIL”

Application work fine on localhost .but when its connect to server it getting error. I connect server through port 22 But my app connecting server port 80. This is the error Error: listen ...
1
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1answer
343 views

Redirect ssh trafic for one user through another port

Is it possible to have a configuration like this: A server which listen ssh connections on port 22 as usual For one user (let's say git) redirect all the traffic through another port (2222 for ...
1
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1answer
622 views

port 25 is reported to be open but no service is listening

OS is Ubuntu 12.04 LTS (server; without GUI). The machine is a virtual server running hundreds of miles away in a remote server farm. I uninstalled postfix and all of it's components (courier, ...
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1answer
1k 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. ...
1
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1answer
209 views

natd redirect_port didn't work

I have an virtual box freebsd 9.0 installation, on which I have working moinmoin2.0. Moin works on 127.0.0.1:8080 and I want to get access by external IP, e.g. 192.168.1.145:80. I try to use the ...
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1answer
250 views

Varnish Port Rediecting to 80

Running varnish on port 8888 for testing, apache on port 80 but when i type in [url]:8888, it keeps redirecting to [url] only. varnishlog shows the redirection as well. I'm thinking wordpress might be ...
1
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1answer
278 views

randomly occupied AJP port on server restart

I have 9 tomcat instances (fronted with apache and mod_jk) on a box which start with /etc/init.d/tomcatX scripts (where X is a [1-9] number). These scripts are simple: #!/bin/sh ### BEGIN INIT INFO # ...
1
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1answer
514 views

Redirect Traffic on domain port to entirely different ip/domain

I'm interested in knowing if I can force a redirect to different ip's for those clients that pass into certain port of my web server. Specifically I'm attempting to get all web(80) traffic to goto ...
1
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1answer
554 views

Web server redirect to port 80

I need help for this problem. My django applications using mod_wsgi, apache and reverse proxy using nginx. the nginx is listen to port 80, and our apps is live inside VPS. And the MOD WSGI is in ...
1
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1answer
539 views

Redirecting port 8080 traffic to a different server in AWS

I have two servers under the same domain name: Apache webserver listening to port 80 Node.js server listening to port 8080 What do I need to do in order to run each server on a different ec2 ...
1
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1answer
197 views

Random ports open on VPS box

I have a VPS box I just purchased. It is running Apache and SSHD on their default ports. When I do a port scan, I get results back that say port 139 and various other seemingly random ports are ...
1
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1answer
581 views

Can ping, can establish SSH connection in one way but not on other way

First of all, sorry about my english. We're facing a very strange problem with SSH connection between two specific servers. Let's say we have X1, X2 and Y servers. Where X1 and X2 are behind the ...
1
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1answer
587 views

Glassfish with Webservices on non default port

I have a simple web service that I created that deploys perfectly on a default Glassfish V2.1 install on both a windows and a linux system. HOWEVER, In the production environment, Glassfish has the ...
0
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1answer
30 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 ...
0
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1answer
57 views

Stop IIS 8.5 from listing on Port 80, but still listen on port 443 for specific IPs

A have an application server that serves a number of IIS 8.5 applications on a number of IP's. Some use port 80 only, some use port 443 only, some use 80 & 443. For the sites that use 443 only, ...
0
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1answer
39 views

SSH Tunnel Connection keeps dropping

I am developing a site whereby the site connects to a clients server to query the database. A ssh tunnel was created and this approach has worked fine for all sites but one. I'm assuming that because ...
0
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1answer
37 views

Binding to same port on different IP addresses

My situation is as follows: One machine with 2 IP addresses: 10.10.20.7 and 10.10.20.17 Two applications that listen on port 9000 (each on it's own IP) What I'd like to achieve is while one app is ...
0
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1answer
53 views

accessing same domain name through a different port

I have a production website, and a development website. The must be accessed through the domain name, www.mysite.com. I would like to be able to access the dev site through a praticular port, say ...
0
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1answer
175 views

ACL Rule to Open UDP Ports

I have the current rules in an attempt to open port 5060 and 10000-20000 for my VoIP provider. We are on a Cisco 1921 router. This ACL is applied to the WAN port on the router facing the ISP. Nmap ...
0
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1answer
68 views

cobbler managed dnsmasq is not listening on the correct interfaces

I have a cobbler server I am trying to get installed. Unfortunately dnsmasq is not listening on the correct interfaces. It should be listening on my 192.168.10.2 network which is assigned to br1 ...
0
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1answer
115 views

SharePoint link to Cognos TM1 Server causes 403

We have a strange issue where a direct link from SharePoint to a Cognos TM1 URL causes a 403, however if we refresh or paste-in the link directly it works. The cause might be related to the leading ...
0
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1answer
38 views

Iptables: some ports are closed despite being open by my iptables; can it be something else?

Beginner question. I set up the following iptables rules: #!/bin/sh # Réinitialise les règles sudo iptables -t filter -F sudo iptables -t filter -X # Bloque tout le trafic sudo iptables -t ...
0
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1answer
63 views

iptables port forwarding from public ip but not from 127.0.0.1

i have an issue with my network setting and i need a port forwarding a bit advanced. I need : - All packets that arrive on my public_ip on port 54321 to be forward on port 12345 but i don't want any ...
0
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1answer
82 views

Is there a well-known port for logstash-forwarder?

I'm setting up a few logstash-forwarder agents which will send logs to a central Logstash server, and need to choose a port for Logstash to listen on. After doing some searching, there doesn't seem to ...
0
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1answer
56 views

Measuring request response time by port

So, I'm currently working on a project in which I spin up a set docker image on a number of different machines and configurations. This image basically contains a web server that accepts a number of ...
0
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1answer
186 views

XenServer 6.2 not forwarding ports to VMs

I have a XenServer 6.2 with OVH with 4 additional IP addresses. For 2 VMs that are installed all is working fine. I created now a new VM with CentOS 6.6, added the virtual MAC OVH assigned me for ...
0
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1answer
316 views

Cannot connect to a port from outside even if Windows Firewall is OFF

I'm getting a strange problem in my Windows 2008 R2 server running on a Hyper-V Virtual Machine. My application is listening to port 8002, which is well listed in command: netstat -na Now I'm able to ...
0
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1answer
70 views

tomcat-webapp not accessible via port after windows-update

we are running 4 Virtual Machines on a MS HyperV Host. On one of the VMs (192.168.50.15) we have multiple Tomcat-Webapps on separate ports - 9010: Jenkins - 9020: Atlassian Jira - 9030: Wiki .. ...
0
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1answer
219 views

Ubuntu IPv6 port redirect using ufw

I'm trying to configure port redirection from port 80 to 8080 on server with both IPv4 and IPv6 support. The OS is Ubuntu 14.04 with the 3.2* series kernel. It is a production server, so I don't want ...
0
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1answer
452 views

Trouble with port 80 nating (XenServer to WebServer VM)

I have a rent server running XenServer 6.2 I only have 1 public IP so i did some NAT to redirect ports 22 and 80 to my WebServer VM. I have a problem with the port 80 redirection. When i use this ...
0
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1answer
231 views

ssh_exchange_identification Can't Access to SSH Amazon EC2 (Lock Out)

I get an error in terminal when I'm trying to access my instance in Amazon EC2. I use Centos 6.x server WHM/cPanel, i have access to WHM, but i DON'T have a complete access to FTP or SSH. ssh: ...
0
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1answer
308 views

Port level traffic monitoring (with graphs)

I'm looking to monitor traffic (incoming, outgoing and total monthly) on a few ports (mostly TCP) and I've done a ton of Googling around and everything leads to software I either can't manage to use, ...
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0answers
200 views

nginx loadbalancer is redirecting to the wrong port

I am trying to get the nxinx load balancer to work. I have the following configuration: upstream backend { server app-1.example.com:8001 max_fails=3 fail_timeout=60s; server ...
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0answers
113 views

iptables only partially redirecting ports

I am moving over everything that uses port 80 to port 9000 on my server, so I configured my apache + it's virtual hosts to listen to 9000 using ip xx.xx.xx.106, and I set up my iptables to preroute ...
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0answers
214 views

Using iptables to log traffic from port mirroring

I configured one port of my switch to do port mirroring of the other ports. I connected to this port mirroring a server where iptables has some rules. If some rules are matched, iptables sends to the ...
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0answers
172 views

Only Apache can listen to port 80 on MacOSX

I have a python web framework, Tornado, trying to listen on port 8000 but failed. Under the testing conditions below, firewall has been disabled in system pref pane. ipfw list shows 65535 allow ip ...
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0answers
397 views

Change default ssh port on Fedora EC2

I have changed my /etc/ssh/sshd_config adding multiple ports for it to listen: $ grep Port /etc/ssh/sshd_config Port 22 Port 80 Port 443 However, after a service sshd restart (which shown no ...
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0answers
782 views

Access Denied for Specific FTP Client

I have a couple FTP servers setup which I am unable to access using a particular client machine. The client is a Windows 2012 server in my company's network over which I do not have admin rights. ...
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0answers
219 views

set DMZ server on modem that not support DMZ, using port forwarding

I have to see an application server from outside of my network, but the modem that I am using is a Zyxel P-660-HN-T1H that not supports DMZ server configuration.So, which port(s) I should forward to ...
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0answers
114 views

Multiple Ports Forwards, Most Working, but Not All?

So I have this ASA5505 setup and pretty much everything works, except a couple key port forwards. Can anybody spot ANY reason why SOME port forwarding would not work? Specifically I know the 50000 ...
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0answers
40 views

apache2 connection hangs

I'm kinda new to Apache2 and all the server stuff and I am facing a strange problem I have set up a reverse proxy in apache.config, so that all the calls with /api/ will be forwarded to port 8015 ...
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0answers
54 views

Prevent port from being used by anything but one application

Is there a way to make only java be allowed to use a certain port? OS: Windows Web Server 2008 R2 No access to router (hosted box).
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1k views

How to change L2TP/PPTP VPNs port

on centos 6 there are open source implantations of L2TP VPN (e.g xl2tp), i wanna know that if default l2tp vpn port blocked can we run vpn on different ports or maybe change cipher setting ? what ...
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0answers
28 views

Trouble configuring postfix

I am trying to configure postfix to be able to send emails from PHP for development purposes. I just installed it following this guide. When I try to send mail to the virtual users I set up I don't ...