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
237 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
943 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
761 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
821 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
vote
1answer
60 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 ...
1
vote
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 ...
1
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1answer
274 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
154 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 ...
1
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1answer
801 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
630 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
979 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
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. ...
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1answer
250 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 ...
1
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1answer
72 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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0answers
36 views

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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0answers
54 views

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
128 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 ...
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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 ...
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0answers
71 views

Netsh does not work as expected

I work with windows. my IP on the local network is A.B.C.D I have a service that runs on a network private to my machine @ IP E.F.G.H and port X I want users on my network to access the service ...
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0answers
33 views

Network syslog with port number

I am collecting syslog from VoIP phones over the network and it is usual having several phones behind same NAT device. I need to collect syslog files to different files or be able to differ lines ...
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0answers
70 views

How to check if connection is working before load balancer decides which server to use

I am working on a project whereby we deliver a secure site for our customers. We host the sites on two servers behind a load balancer but have port connections (24000-24100) to each database. The ...
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0answers
178 views

Socket Error 10054 - VS2013 Web Deploy Failing

I'm having trouble completing a web deploy from VS2013 as I posted in VS 2013 Web Deploy failure: Warning : Retrying the sync because a socket error (10054) occurred Apparently web deploy uses port ...
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0answers
163 views

Opening port 8000 for WCF on Azure

I created a virtual instance on Azure and deployed a couple of WCF services for testing, and also installed IIS. Then I added TCP endpoints for ports 80, 8000, and 8001. The services run on ports ...
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0answers
20 views

What part of the reboot cycle in Linux is WinSCP detecting as FTP port 21 being available?

When I rebooted one of my boxes running Ubuntu Server LTS 14.04.1 today, I received a strange message from WinSCP during the automated reconnect attempt that I've never seen before: ...
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105 views

How to prohibit connections on port 25 except from real mail servers - exim, ubuntu

I'm fairly new to email servers, and my VPS has being blacklisted (for the second time) IP Address 45.56.85.76 is listed in the CBL. It appears to be infected with a spam sending trojan, proxy ...
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0answers
24 views

Ganglia server in Google Cloud

Fairly new to the google platform. I needed to open up port 8649 for a ganglia server environment. When I modified the default network and added the port it shows that tcp:8649 is opened. I'm able to ...
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0answers
54 views

PCI says port 36141:TCP is blocked. But 36141:TCP open on iptables

PCI compliant scan fails due to port 36141:TCP is being blocked on website. I verified I cannot connection via 36141 on same server to itself: # nc -zv 127.0.0.1 36141 nc: connect to 127.0.0.1 port ...
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40 views

Many webapps, one vps

Might be a noob question, Google and SF searches didn't turn up anything super useful. Could be using the wrong words here. I've got a vps, with one port 80 app running on it. I'd like to add two ...
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0answers
318 views

OpenVPN Port forwarding on a OpenVZ VPS

I've been trying for the past 3 hours to forward the 443 port from my client to the 20443 port on my server (CentOS 7 on OpenVZ), so i can access it on myserverip:20443. I have OpenVPN Access ...
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0answers
65 views

Network access sometimes lost, disabling port security temporary solves?

I have network based primarily on Edge-Core managed switched. Port security with max mac count = 1 is enabled, DHCP snoopping enabled. Some clients have troubles with accesing network, but when I ...
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0answers
62 views

RPC Ports getting reset to 5000-5002 on reboot

I've run into a very common issue with RPC Endpoint Mapper ports not being available. The default RPC ports are 5000-5002. When I edit the registry and set the ports to a wider range (say, xx100 - ...
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0answers
217 views

Filtered port 22 with no firewall settings

I'm trying to connect to an sftp server from a CentOS 5.5 server. The connection is never established. When I run the command: nmap -p 22 -P0 <sftp server address> PORT STATE SERVICE ...
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4k views

Windows TCP Port 139 Netbios-ssn vulnerability

I ran netstat -b on my computer. Two results showed that I do not understand, VAIO being another PC on the LAN. [firefox.exe] TCP 192.168.100.106:49186 VAIO:netbios-ssn TIME_WAIT TCP ...
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0answers
118 views

Network Issues Connection to SQL database on MS server

Prior to asking this question, I followed this thread: Cannot telnet to SQL Server on port 1433 I am attempting to connect to a database on a server distinct from the computer upon which I am ...
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0answers
298 views

Port 80 Occupied

When trying to run Apache from the Windows Command Line, it gives the error (OS 10048)Only one usage of each socket address (protocol/network address/port) is normally permitted. : make_sock: could ...
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0answers
430 views

One public IP and two web servers

We have our IBM server (internal ip: 192.168.1.128) connected to internet via router (192.168.1.1). I have forwarded the following port: Port 80: internal IP 192.168.1.128 for incoming HTTP ...
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0answers
333 views

Iperf UDP listening on used port

I get WARNING[9157] chan_sip.c: Retransmission timeout reached on transmission error on asterisk and trying to troubleshoot the problem. Now asterisk is listening on 5060 port: udp 0 0 ...
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0answers
279 views

Occasional firewall spikes on ports in 40000 - 60000 range over VPN

I am hoping someone will recognise the description below and be able to tell me what they think might be going on.. I look after an office network, which has VPN access to a different network ...
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0answers
263 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
144 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
283 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
243 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
480 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
1k 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
248 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
149 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
43 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
2k 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
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 ...
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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 ...