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

1
vote
2answers
730 views

Serving Meteor on main domain and Apache on subdomain independently

I'm running a Meteor server on my Ubuntu server. But problems arise when I try to have Apache serving a subdomain on the same server. main.domain.com -> Meteor sub.domain.com -> Apache Meteor is ...
0
votes
2answers
386 views

Can't connect to MySQL server on 'localhost' after changing TCP/IP Port

When I change the TCP/IP Port the MySQL Server will listen on port=3306 to port=3808 in my.ini, my Django project works very well. Navicat also can login in to mysql with same user name and password. ...
5
votes
1answer
230 views

SSH & SFTP: Should I assign one port to each user to facilitate bandwidth monitoring?

There is no easy way to track real-time per-user bandwidth usage for SSH and SFTP. I think assigning one port to each user may help, but I am wondering if my approach is workable. Use case Bob, ...
2
votes
1answer
56 views

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 ...
0
votes
2answers
124 views

Is there a top like tool that shows processes and ports, live?

I'd like to be monitoring ports in "realtime" and the processes that use them. Is there any tool that can handle that? I imagine somethinkg like top, but with a column that lists all ports the process ...
13
votes
10answers
141k views

How can I find out if a port is opened or not?

I have installed Apache server on my Windows 7 computer. I was able to display the default index.php by typing http://localhost/ in the address line of my browser. However, I am still unable to see ...
-3
votes
2answers
73 views

DNS Server; Different Ports to different IP's [closed]

I have 2 servers with (of course :D) 2 IP's, for example: 123.456.789.101 & 101.987.654.321 Now I have a domain example.tld and want all requests go to 123.456.789.101, except the ones which hit ...
1
vote
3answers
119 views

Setting subdomains to multiple computers for Remote Desktop/VNC [closed]

I have some computers set up at home and would like to be able to access them from anywhere. I have achieved this by forwarding ports accordingly: public | computer | private | Details 5001 | ...
0
votes
1answer
160 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
votes
0answers
160 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 ...
0
votes
0answers
1k views

ssh_exchange_identification: read: Connection refused

Everytime I'm trying to SSH into my Amazon EC2 Server i get an Error below: Zoc6 Error: ssh_exchange_identification: read: Connection refused Tried: Terminal (mac) - Failed Reinstall Zoc and ...
0
votes
0answers
90 views

Jetty and IIS on same server, different IPs

I have Windows Server 2012 R2, fresh install and I am running there IIS for .NET applications, now for many different reasons I want to run Jetty on a same server. IIS is setup to listen only on (for ...
5
votes
1answer
816 views

Is it bad practice to run a web application server directly on port 80/443

I am hosting a web app on amazon aws, using an ec2 instance. On that instance i will be running only one application. using glassfish v3.0.1 I do not want to run the app using : ...
1
vote
2answers
154 views

Can I find the list of ports being listened by a process ordered by the time of opening?

I know I can see the list of open ports using the lsof command. I am trying to view the results ordered by timestamp of listening. The process opens multiple (~6) ports and I suspect the order of ...
-1
votes
1answer
58 views

how to 2 ip virtual in public dan private with forward to different destination

Here my case, Server 1 public IP in 1 box (eth0) -> 203.x.x.55/28 and 57/28 gw 203.x.x.49 private IP (eth1) -> 10.10.8.1 Server 2 private IP in 1 box (eth0) -> 10.10.8.5/24 and 7/24 gw 10.10.8.1 ...
1
vote
1answer
812 views

IIS 8.0 Second Website on port 81 not visible publicly

I have been given a VM in Windows Azure with Windows Server 2008 R2/ IIS 8.0 running. It has a default website. Now I wanted to create a dev version of that site at some other port, say 81. I added ...
0
votes
2answers
117 views

Hardware firewall for Linux web (and mail) server allows UDP connections to any local port from remote ports 53 and 123 — is this safe?

I'm trying to tighten security on a linux web server. It has a hardware firewall with a default rule set and I noticed two rules that concern me: remote port: 123; local port: ANY; protocol: UDP; ...
0
votes
1answer
28 views

What is the best way to create remote tunnel?

I have 3 Linux servers: - 10.0.0.0/24 - (10.0.0.10) Linux server inside my LAN. - 20.0.0.0/24 - (20.0.0.10) Linux server with HTTP Apache server - 50.50.50.50/32 - Server on Amazon AWS which see both ...
-5
votes
1answer
645 views

Why Are There Only 65,535 Ports, and Will We Ever Have More? [closed]

I understand the original reasoning behind having 65,535 ports per IP address: this is the highest number that can be represented by a 16-bit, or 2-byte, number, and it wasn't conceivable that ...
0
votes
2answers
664 views

Cannot restart RabbitMQ Service on Windows

I stopped RabbitMQ for a short time on my Windows (2012) server. However, when I tried to restart it, it would shut down again within about 30 seconds. The Windows Event Log had the following ...
1
vote
1answer
415 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, ...
1
vote
1answer
66 views

2 ips on 1 port vs 1 ip on 2 ports

Background I have a PHP-FPM sitting behind an Apache server. As I need to use two different configurations for PHP-FPM, I can configure it to be connected either on: 127.0.0.1:9000 and ...
-1
votes
1answer
133 views

Port blocked from network

Situation: Windows Server 2003 R2 running HP Data Protector Client Port 5555 is blocked. Telnet to Server:5555 from the network fails but works from the machine itself. Firewall is disabled. AV is ...
5
votes
2answers
423 views

Where does a firewall application fit into the software stack?

I'm trying to figure out where a firewall application on a server fits into the software stack, and at what point in the networking process the firewall "kicks in," from the perspective of an ...
0
votes
2answers
358 views

Port forwarding between 2 routers and wrong IP at the end

So here is the situation: I have adsl modem connected to 1st router "A" - local IP 192.168.2.1 I forward SSH port to 2nd router "B" - IP 192.168.1.1 On router "B" I forward SSH port to machine - ...
0
votes
1answer
187 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, ...
0
votes
1answer
47 views

Should I block the other SMTP ports as well to block outgoing mail?

I have blocked outgoing port 25 to prevent spam being sent from my servers. However, I'm not very familiar with SMTP and I have heard that ports such as 465 and 587 can also be used to send mail, but ...
0
votes
1answer
114 views

Apache - Restrict access to a specific port

I need to restrict access to a specific port only, on my apache server (I'd like that only the SSL port (443) is used on my webserver). So for example, if an user try to connect to standard port 80, ...
0
votes
2answers
2k views

Connection Refused Error Java/Linux

I'm trying to move an existing project over to a new (linux) server environment (note, I have no direct access to the code nor do I have any knowledge about the project in general - talk about a great ...
-5
votes
1answer
35 views

Forward downloads to a seperate physical connection [closed]

So, mothers internet connection is incredibly slow, and she lives in a very rural area and cannot have anyway of acquiring a faster connection. I on the other hand have a very fast connection, would ...
2
votes
3answers
286 views

Cannot log in into a server by ssh connection

was connected to a server via ssh through port 22, and decided to kill all the users connected with the root user with the following command: pkill -9 -u root Now when I try to log in by ...
0
votes
1answer
202 views

Postgresql not listening on the correct port using service command

In my /var/lib/pgsql9/data/postgresql.conf I added port = 55434 and if I start Postgres with /usr/bin/pg_ctl start -D /var/lib/pgsql9/data/ as the postgres user then Postgres is listening to the right ...
0
votes
1answer
3k views

How to set up port forwarding on a NETGEAR ProSafe™ Gigabit 8 Port VPN Firewall FVS318N?

UPDATE: Rule might be right, but app still isn't functional. See more details after the screenshots. I want to forward port 3000 to a machine in the local network (192.168.1.106). So far I've ...
0
votes
1answer
142 views

Nginx multiple virtual host isn't working

I already have a Working nginx installation for my local development in my Computer. So i was thinking about adding another virtual host for a new project. Here is the Existing Virtual host file AKA ...
0
votes
3answers
2k views

Cannot change PostgreSQL port

I run Postgresql 8.4 as a service on a CentOS 6.2 server. I set port = 21444 and listen_addresses = '*' in /var/lib/pgsql/data/postgresql.conf and I changed 5432 to 21444 in postmaster.opts and ...
4
votes
3answers
14k views

Monitor ssh on non-default port with Nagios

I just deployed Nagios on a Gentoo server and everything is fine except ssh, which it marks as "CRITICAL" because it's refusing connections. But that's because it's running on a port different from ...
1
vote
1answer
137 views

Access servers individually in a load balanced set

I have 2 web servers in a load balanced set (port 80) on the Azure platform. I need to ping a php file on each server which forces them to update, but how can I do this? Can I access them like this: ...
1
vote
3answers
142 views

Despite of several attempts, unable to open port 25

This question may have been asked many times here but after several failed attempts, I repeat the history: How do I open port 25 port on my server running CentOS. Here is my iptables config: Chain ...
5
votes
6answers
902 views

How can I find the total number of TCP connections for a given port and period of time by IP?

On a Linux system there are plenty of methods for listing the current TCP connections for a given port by connecting IP but: how can I count the total number of connections to a port per source IP for ...
0
votes
2answers
190 views

Http Persistent Connection (keep-alive) and port numbers

Is a persistent http connection (keep-alive), always bound to a specific port, or can it use a range of ports?
-2
votes
1answer
47 views

Random port in Filtered state for brief amount of time found using nmap , possible trojan?

Nmap results show me port 3527 open for brief period of time and then it disappears. I have a feeling this could be trojan communicating with mothership. Or something normal, but I cannot find much ...
2
votes
2answers
111 views

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 ...
0
votes
0answers
129 views

Can't connect to Rails app after restarting Thin server

I have a rails app which works fine on localhost and used to work fine on my vps but after restarting the Thin server I got the same message on all browsers that they couldn't connect to the server. ...
0
votes
1answer
47 views

Is there a device with multi auxiliary (AUX) ports to configure multiple devices

Level: Beginner Sorry for the confusing title. I shall try to explain my best to explain my question. Question: Is there a networking device named X that has multiple AUX ports so that I can connect ...
0
votes
1answer
839 views

Cisco 800 series won't forward port

I am trying to forward port 444 from my cisco router to my Web Server (192.168.0.2). As far as I can tell, my port forwarding is configured correctly, yet no traffic will pass through on port 444. ...
-1
votes
2answers
85 views

How to bind munin to use a vhost or port number?

Currently I'am able to access my munin setup using the default url. www.mydomain.com/munin For security reasons, I want to only allow Munin to be access using port number. Like this ...
-6
votes
1answer
52 views

Change original port number [closed]

The default port number for ssh is 22 is there a way to implement security by being obscure and changing the original number? So for example ssh would not be on port 22 it would be on lets say 2847.
-1
votes
1answer
456 views

Iptables - source or destination check first?

So I'm running a server with iptables config and I've only been checking for destinations. Here is what the config structure is. Top of config has a list of ip addresses to drop followed by ...
0
votes
3answers
567 views

Manage multiple ports with Apache Tomcat

I already switched my default port from 8080 to 80, but here's a problem: I need to also be able to manage port 8000, too. Current ports are: 8080, 80. How do I map a new port (8000) to a new webapp? ...
1
vote
2answers
455 views

Changed SSH default port and disabled root login. Client didn't save the new port can't login/connect to it now

Working on my centos server. Connecting via putty. Changed SSH default port and disabled root login. But the client didn't save the new port and defaulted back to 22 (my new one was 42650 or something ...