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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DELL switch 6248 port and mac mapping using SNMP

I have a Dell 6248 switch. I connect some of my servers to it and want to know which server nic connected to which switch port. I try using snmpwalk to get this information, but I just can get mac/ip ...
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How do I configure Windows Firewall for FTP Server

What ports do I need to open for me to be able to access Windows FTP server (running on Server 2008) for both active and passive FTP? Opening 21 on it's own is not enough.
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2answers
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How can I get a list of the ports that Wireshark knows?

When I need to choose a new port to use (internal to an organisation) I used to look in /etc/services. This is no longer sufficient, as Wireshark knows about many other ports that are not in ...
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VMware ESX: Unable to delete PortGroup. 1 active ports

At work we have an ESX 4.1 cluster with some vlan's (Port Groups) configured on a vswitch on each host. A lot of these port groups aren't in use anymore so we decided to clean them up. We don't have ...
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2answers
415 views

Route webserver on 8080 through another webserver on port 80

I have a local webserver that is mapped to port 80 (Windows, XAMPP http://www.apachefriends.org/en/xampp.html) and a domain "mydomain.com" that directs to the local webserver's IP. Everything works ...
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1answer
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Sendmail & IpTable Rules

I need to setup IpTable Rules for a server with nginx, ssh and sendmail. Now, the problem is, with my rules I can not send emails to other hosts anymore. Emails to localhost do work, but sending to ...
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1answer
197 views

Putty alternative for windows with support to remote port forwarding

I have been trying to find an alternative to putty for windows. It needs to be portable and it must support remote port forwarding. Putty has had problems with its own implementation of remote port ...
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2answers
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Why am I unable to telnet to a local port that has a listening service?

I suspect this is either a very simple question, or a very complex one. I have a headless server running ubuntu 10.04 that I can ssh into. I have full root access to the system. I am trying to set up ...
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4answers
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Cent OS firewall opening port

I've installed postgre on a CentOS server. I basically followed this guide here: PostgreSQL On the last step it says I need Open TCP port 5432 and to do so I need to add the following line to my ...
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2answers
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General firewall / security procedures for webservers & databases

My webserver and database server are separate. All I've done to secure the webserver is used ufw and denied from all except ports 22, 80, and 443. What else really needs to be done there? On my ...
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3answers
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Check port status on CentOS

I have a CentOS machine, and I opened a port on witch I should get a stream (actually it is the 5004 port - rtp). However, seems like the stream is not received. Is there anyway to check on status of ...
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1answer
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what port do use for vpn?

At the moment I'm running an OpenVPN server on a non standard port. Unfortunately this make some roadwarriors unable to connect because of traffic limitations depending on where they are. Sometimes ...
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2answers
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Can I run a web site from my home network without jeapordizing other computers on my LAN? [closed]

I have a home LAN with 5 computers and a NAS, all connected to a Linksys router which is connected to my Cox cable modem. I'm interested in having one of my computers run an IIS-based web site and to ...
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1answer
242 views

My Ruby on Rails application only works if the address contains the port

I have a Ruby on Rails application that works ok on my notebook ( http://localhost:3000/ ) I uploaded it on my hosting server, created with CPanel X an application, the URL is ...
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4answers
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Anti-virus and network ports?

I think that anti-virus would be able to determine the virus even before it gets into the OS (Windows/Linux) by filtering at the network interface port itself. Right? But, how do viruses escape that ...
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2answers
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How to change listening port on webbserver IIS 7 (globally)?

Is it possible to change the portnumber to which IIS 7 is listening for incoming questions, if I have Apache and want it to listen to port 80 and IIS 7 to 8080? And this setting should be serverwide ...
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1answer
273 views

SELinux remove or leave the old SSH port label?

I am following this (basic) security guide to change my Server's SSH port to something else. It says: $ semanage port -a -t ssh_port_t -p tcp 2345 #Change me ...which would add a new label on top ...
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4answers
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apache port number [closed]

For each development sites I want to have a unique port number. For instance, domain.com:1234 This is what I have in my httpd.conf file. After restart the page domain.com:1234 is not showing in the ...
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1answer
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Can I change the port for SSH on a hosted server?

I am changing over to a hosted server and I want to use non-standard ports for SSH. Is this possible? Wouldn't I have to have access to the router, in order to forward ports?
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1answer
684 views

How to configure jetty to listen to multiple ports?

I just want to configure jetty to listen to more than one port. I don't want multiple instances nor multiple webapps, just one jetty, one webapp, but listening to 2 or more ports. The default way ...
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2answers
1k views

socat connect-connect “proxy” two inbound TCP connections to expose a firewalled service?

I'm struggling a bit trying to see how to use socat (or a similar TCP port redirector) to expose a firewalled service on a PC. Here's the scenario: I have a server PC which will be acting as a ...
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4answers
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Other processes take over port 80 when restarting Apache - why, and how to solve?

I have a CentOS 5.5 server running Apache on port 80 as well as some other applications. All works fine until I for some reason need to restart the httpd process. Doing so returns: sudo ...
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1answer
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Cannot start listening on a certain TCP port, but there's nothing currently listening on it

I have Windows Service that uses a WCF service host to listen for connections on TCP port 61000. When I try to start the service, I get the error: Service cannot be started. ...
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1answer
112 views

iptables question for port forwarding

I have a web server running on my server on port 7000. I want it to be accessible on port 80. I've read that this could be easily done with iptables port forwarding. What would the correct command ...
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2answers
467 views

Multiple SSL Certs 1 IP Port Redirection

So I have been trying to figure out how to setup multiple ssl sites using only 1 ip. The issue that I am seeing is when you have multiple vhosts using ssl the first site that has ssl is the one that ...
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3answers
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The best software for users internet usage

We are a small business using a Vigor 2820 as the internet router, and we'd like to install a software that could report any internet usage from our users. I already tried the "official" software ...
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2answers
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How to forcibly disconnect a application listening on a port

I have an app that doesn't properly stop listening on a port. How do I force it to stop so I can open the application again/use that port again?
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1answer
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dovecot won't reload config?

I want to run imaps on a port other than 993. I changed this in /etc/dovecot/conf.d/10-master.conf and beforehand, backed up the original copy as /etc/dovecot/conf.d/10-master.conf.bak. I did ...
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1answer
164 views

Unable to remove a port from default VLAN

I am unable to remove a port from my default VLAN. I've tried: Switch(config)#interface FastEthernet 0/1 Switch(config-if)#no switchport access vlan 1 It has no errors but when I check it using: ...
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2answers
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How to specify the SSL port with command line curl?

I'm trying to test the SSL connection on one of my servers. The server is behind a LB so it's listening for SSL connections on the port 8090. I have use the --resolve option to test when talking to ...
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1answer
81 views

Apache2 - Hosting two sites on the same domain with different ports

I am hosting a staging site (test.mydomain.com) which currently work well on port 80 for two sites (test.mydomain.com and test.FRmydomain.com) I am working on a new backend and I would like to deploy ...
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2answers
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SSL over non-standard port?

I have two different sites in one server: a.com and b.com. If I use named virtualhost on ssl port, IE won't work. So, I decided to use port 444 for SSL for b.com. However, it seems all browsers ...
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3answers
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Configuring virtual hosts to use both names and port numbers

On my local machine I have several named virtual hosts set up in apache, all on port 80. NameVirtualHost *:80 <VirtualHost *:80> DocumentRoot "/site1" ServerName http://site1.local ...
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2answers
840 views

Rewrite URL Domain Name when IP address used

My apache home server listens for HTTP requests on an alternate port (port 8080), but I would like to let users type my domain name (example.com) without having to specify the port. So far I've ...
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2answers
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Port Routing between different domains

i have a apache server located on a.com:9254 I would like to route a.y.com:80 to a.com:9254. So, I can put all my services under y.com domain. I tried proxy. However, In apache, it looks all ...
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3answers
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Cannot connect to SQL Server and Wireshark don't listen anything

I'm trying to connect to a SQL Server from outside the LAN, so I opened port 1433 (default SQL Server port) in the firewall. On the server side I'm listening with Wireshark and I can listen ping ...
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1answer
144 views

Forward port on same machine?

I'm trying to forward an existing port for an application which can only listen on one port. The problem is the program and the firewall is on the same computer (Windows Server 2008 R2). For ...
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1answer
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iptables and DNAT. quick question

So I have a machine with a single interface. It has 2 ip addresses (eth0: 192.168.2.3, eth0:1 192.168.2.4). I'd like to take any traffic coming in on 192.168.2.4 and NAT it to an external ip ...
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1answer
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Mysql Server Windows XP Firewall ports

We have a Windows Server 2003 machine with MySQL installed, and a Windows XP client machine. On the client machine we have a C++ application. Windows firewall is active on both machines. We opened ...
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4answers
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Using SELinux to force Linux to allow programs to bind to port numbers lower than 1024

Is there a way in SELinux to force linux to allow a program to be able to bind to a port number lower than 1024.
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1answer
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Windows Server 2003 - Block port on localhost

We have a misbehaving daemon running on one of our Windows 2003 Servers. It telnets into localhost:5115 I have a feeling that if I can stop it from telnetting into localhost I can get it to fail ...
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1answer
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Can i plug SFP Transceiver into SFP+ port?

I`m talking about DELL PowerConnect 6248 here. For Module 1 bay you can buy PowerConnect 6xxx SFP+ Module supports up to two SFPs (no SFPs included) Can i plug into these those Transceivers that are ...
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1answer
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TCP: Address already in use exception - possible causes for client port? NO PORT EXHAUSTION

stupid problem. I get those from a client connecting to a server. Sadly, the setup is complicated making debugging complex - and we run out of options. The environment: *Client/Server system, both ...
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1answer
167 views

Why don't ports resolve correctly for localhost and {my server name}?

I set up VisualSVN Server, and SQL Server on my local machine. VisualSVN was set up to use https://dell/svn/ as the repository root. I was connecting to SQL Server using "localhost". At some point I ...
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1answer
552 views

Can SSTP, an IIS 7.5 website, and RD Gateway all serve off of port 443 using 2008R2?

Is it possible to use a single port for SSTP and an IIS website, or will I be required to set up separate ports? I've got Server 2008 R2, and I tried doing it but now I can't get IIS to serve anything ...
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can't access my supermicro IPMI remote console

This is my first post, this site it's great, and i hope you can help me with my problem. I have a supermicro MB X8STI-F and I can access the remote interface browse the server status and everything, ...
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1answer
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GlassFish change port of web-service

I am new to Java and Linux. I have a JSP site and a java web service deployed on a GlassFish server (working OK). I need to change the port of both the application and web-service. I have changed ...
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nginx - connect() failed upstream under load testing

I've been doing some load testing with wrk of my nginx reverse proxy -> my web app setup and I noticed that when I get to 1000+ concurrent connections, nginx starts returning 502s and the following ...
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1answer
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How to see log of apps taking specific port over period of time on Windows?

How can I see for specific time period, which app had bound some specific port in Windows? I am auto-starting my app with windows and I am bounding port 1200 as UDP packet receiver, but sometimes my ...
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1answer
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Can't establish connection on port 80 for yum

Hi guys I have a very strange issue happening on one of my boxes. If someone can advise what I can check please let me know. Thanks. Here's the layout. Box 1 & Box 2 <> Firewall <> ...