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
102 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
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2answers
421 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
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2answers
269 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
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1answer
157 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
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1answer
45 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
85 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
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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 ...
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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
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3answers
258 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
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1answer
167 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
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1answer
2k 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
124 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
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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
13k 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
109 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: ...
13
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4answers
16k views

What firewall ports need to be open to allow access to external git repositories?

What firewall port(s) need to be open to allow access to external git repositories?
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3answers
123 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
746 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
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2answers
163 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?
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1answer
46 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
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2answers
100 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
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0answers
120 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
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1answer
38 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
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1answer
827 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. ...
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2answers
77 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 ...
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1answer
50 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.
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1answer
413 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
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3answers
351 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? ...
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2answers
352 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 ...
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votes
2answers
813 views

Running a websocket server and a http server on the same server

I am using nginx to to serve an instance of PHP application, and also at the same time running a Ratchet app to listen to a websocket connection. Problem is, both of these instance are using the same ...
0
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1answer
986 views

Exchange: use Port 110 for both POP3 & POP3/SSL?

On our Exchange 2010 POP3 is configured to only allow secure logon (TLS connection for authentification). Now, the default port for "plain" POP3 is 110, and for POP3 with SSL is 995, hence with the ...
0
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2answers
1k views

Git Bash Default Port 22 to 443

How I can change my git bash default port 22 to 443.Why I want to change?Our local internet policy not allowed to use that port and I got my error of bad file with fatal error when I am cloning to a ...
4
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2answers
131 views

What are Port 45702 Visits?

Been looking in my iptables logs and there are hundreds of different IP's trying to access port 45702, Google doesn't seem to know much. They always arrive in blocks per ip Jun 3 00:59:49 ...
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1answer
4k views

Apache 2 and phpmyadmin on VirtualHost on custom port: you don't have permissions to access /phpmyadmin on this server

I googled a lot but I did not find a guide to set up phpmyadmin on a virtualHost on a custom port. Apache 2.4, this is my httpd-vhosts.conf Listen 0.0.0.0:66 <VirtualHost *:66> Alias ...
0
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0answers
88 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 ...
6
votes
1answer
191 views

Should I listen for SMTP on both 25 and 587?

I was setting up haraka as our mailing server, and for outbound email, it suggests moving to port 587 for SMTPS auth support. However, I'm unsure if I should be running 2 instances of haraka on ...
0
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1answer
2k views

CentOS postfix smtp server connection refused from outside

I am quite stuck with my postfix/smtp configuration on my CentOS machine. I setup a mail dns mail.domain.tld, configured in the postfix main.conf file and tested locally on the server by connecting ...
0
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1answer
318 views

Adding port 25 to iptables won't getting to open centOS

I am facing a problem to open port 25 with iptables on my CentOS machine. I checked the connection by 'nmap' and 'telnet' but both failed. The follow things I did to trying make this work: iptables ...
2
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5answers
1k views

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.
0
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0answers
123 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 ...
0
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1answer
833 views

Cant open port on Windows 2012R2

I really never had problem with Windows Firewall, however today on new installation i`m trying to open port 110 but i cant. My firewall rule is: printscreen telnet myip 110 Connecting To ...
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4answers
694 views

postgresql login from remote

I want to give remote access to my postresql db (8.2) to computers that are at the same lan, at the default config I have added this line to pg_hba.conf where xxx.xx.xx.xx is the ip of the machine ...
0
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1answer
227 views

Apache : How to redirect domain.com:2368 to domain.com/blog

I have standard Apache configuration. At domain.com Apache is serving static html files (No backend technology) At domain.com:2368, there is a Ghost (blogging platform) instance, running NodeJS. I ...
0
votes
1answer
2k views

iptables for Windows to redirect traffic

I am currently testing my server traffic and would like to route all incoming+outgoing traffic so as to be picked up by Burpsuite for analysis. Ideally, all traffic from ports 80 and 443 should be ...
0
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2answers
216 views

server sending hpoms-dps-lstn packets to unknown IP

I have a server running pacemaker with corosync and some standard services as mails, web, ssh... When I run wireshard in my network I keep getting those packets that my server is sending to the IP ...
0
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1answer
357 views

Windows - Command for adding new printer port type using inf files

Is there any batch or powershell command to add new printer port type using inf files. I am able to see only below commands for adding TCP-IP and LPR ports and not port type. rundll32 - Install ...
4
votes
1answer
726 views

nginx: no permission to bind port 8090 but it binds to 80 and 8080

I'm struggling with some strange permission related behavior: when I configure nginx to listen to port 8080 everything works as expected, but when I use any other port I get something like 2014/01/10 ...
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2answers
2k views

MSMQ via HTTP - Why do we need TCP Port 1801?

Context: MSMQ, Windows Server 2008 (either "regular" or "R2" editions) According to MS online documentation here: http://technet.microsoft.com/en-gb/library/cc725576%28WS.10%29.aspx MSMQ messages ...
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2answers
785 views

Opened some ports with iptables but they aren't open

I'm running a Debian 7 server via Linode VPS, and have recently installed/configured a mail server using Postfix and Dovecot. The final step to complete this was to open up ports 993, 995, 465, and ...
0
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3answers
77 views

Can I set up port forwarding to emulate not just a port but another IP address?

I am running a proprietary Windows application which functions like a server. You install the program, and then it broadcasts itself over port 13083. The program is web-based, so it's accessed ...