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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4answers
61 views

Change SSH Port, but spoof on port 22

I have changed the SSH default port (by updating the Port attribute in the /etc/ssh/sshd_config file). But what I would like to do is still make it appear as if everything is working as expected if ...
1
vote
2answers
24 views

How does Apache know which site to load when having multiple sites at the same port?

I have setup 2 sites at my localhost. One at localhost:8197 and one at fc.localhost:8197 Of course, to make this work, I've edited my /etc/hosts file to include fc.localhost 127.0.0.1 So, these ...
0
votes
2answers
54 views

Bind DNS server respond timeout

I've set up a BIND DNS server on centos 7. I've created the master zone record, it is the following: $ttl 38400 loool.ro. IN SOA ns1.loool.ro. owner.yahoo.com. ( 1421842090 ...
0
votes
1answer
31 views

Cannot connect to port over the internet (works from localhost)

I'm running something (=Faye server) on port 9292: david@theta:~$ lsof -ni tcp:9292 COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME ruby 2406 david 13u IPv4 1579461398 0t0 ...
0
votes
0answers
5 views

WAMP change phpmyadmin Port [migrated]

I found a couple topics on how to do this here, but none of them seemed to work as WAMP has changed the structure of the files in mention. Here is my config for phpmyadmin. I'd like it to run on a ...
0
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1answer
22 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
votes
1answer
27 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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0answers
21 views

Forward ports Fotigate, multiple ports

I need a you guys help. I can not solve , I need ideas . I am implementing a FortiGate 140, my difficulty being to perform port forwarding , I need make redirecting a ip in the case . example : ...
3
votes
1answer
63 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 ...
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votes
2answers
60 views

Ports Open but Not Accessible Ubuntu 14.04

I've read so much and tinkered with so much that I don't even know where to start. Port 80 and 22 are open and accessible both inside and outside the local network and work fine. However, 443 and ...
0
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0answers
37 views

Nginx secure port 443 is not opened/ connection refuse

I have installed nginx on my ubuntu VM. There I want Nginx to listen 443 port. My configurations are as follows. server { listen 443; server_name wso2test.com; ssl on; ...
0
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1answer
23 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 ...
2
votes
2answers
102 views

nginx - [emerg] bind() to 0.0.0.0:80 failed (98: Address already in use)

this made me crazy! I want to use nginx on port 81 and apache on 80. apache works correctly but when I want to start nginx I get this error: nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address ...
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votes
1answer
16 views

What does unknown connection state mean [closed]

When using a port monitor, I noticed that the states of some of the connections where categorized as "unknown". What does this mean?
0
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2answers
55 views

Unable to add allowed VLANs to trunk and port not trunking

I am unable to add any VLANS to be allowed on trunk and the port is not trunking. I've tried: Switch0#configure terminal Enter configuration commands, one per line. End with CNTL/Z. ...
2
votes
1answer
40 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: ...
0
votes
1answer
34 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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0answers
34 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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votes
1answer
65 views

What is the best way to measure latency via a “telnet to port” test, preferably with built-in Linux tools?

I'm writing a Graphite/Diamond collector measuring network latency. Specifically it should measure the time it takes to open up a connection to a port on a remote server. And it needs to work via ...
0
votes
1answer
23 views

Solaris 11 / OpenSolaris - stop processes from listening?

I would like to write a script to secure Solaris 11 servers in preparation for internet access. In addition to enabling ipfilter, I would like to disable network-accessible services that are not ...
-2
votes
1answer
35 views

Port 5005 on my VPS is listening, but closed

I have a program running on port 5005, and the port is listening and accessible via localhost: znc-admin:~/.znc$ netstat -tulpn | grep 5005 (Not all processes could be identified, non-owned process ...
0
votes
1answer
60 views

nfssvc: Address already in use

I have installed nfs server using yum in my centos 6.3 box. But I couldn't start it. Any idea? # /etc/init.d/nfs start Starting NFS services: [ OK ] Starting NFS ...
-1
votes
1answer
73 views

Domain controller is not listening on port 445

Is there a way to find why the DC is not listening on 445? -> Firewall rules checked , no denies found and the traffic is allowed. -> file share and print share services running. What else to check? ...
1
vote
1answer
170 views

AWS EC2 Ubuntu 14.04 Instance smtp port forwarding from 25 to 2025

I am trying to step up port forwarding from port 25 to port 2025 on the same AWS EC2 Ubuntu 14.04 instance using iptables. I am using port 2025 to receive income emails using Alfresco. The first step ...
0
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0answers
107 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 ...
0
votes
3answers
47 views

ProFTPD and firewall configuration for PassivePorts

I use ProFTPD on my server, and when I try to connect to my server with FileZilla or WinSCP, I have this error : Command: MLSD Error: Connection timed out Error: Failed to retrieve directory ...
0
votes
1answer
80 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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0answers
51 views

Can't access directadmin webinterface

Since today I can't access my directadmin webinterface (using port 2222). I gues it's a bind problem with port 2222. [root@server directadmin]# ./directadmin b200 Debug mode. Level 200 Converting ...
0
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2answers
100 views

IPTables only solution to block any IP address who has made too many connections or reconnections

I’m looking for an IPTables only solution to block any IP address who has made too many (e.g. more than 5) connections or reconnections within a short period of time (e.g. 1 minutes) on a certain ...
3
votes
1answer
321 views

Does closed Port 25 cause mail to be marked as spam?

I have a web server where I have installed Postfix for sending emails only. All incoming mails will be handled by google apps and not my web server. Using iptables rules, I have blocked all incoming ...
0
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1answer
58 views

Do blocking input ports increases security?

1-Do blocking unused input ports in firewall increases system security? How? (as there is no daemon listening on those ports anyway) 2-Do dropping those unused ports will positively or negatively ...
1
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2answers
162 views

Test port reachability from a remote host even though the port is not bound to a service?

I need to check whether a remote host is able to reach a specific port. At the time of test the service bound to that port will be down. The possible issues that the test would address would be : ...
0
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2answers
97 views

Cisco 887VA - Cannot open port 110

I am trying to configure a Cisco 887VA at work to open port 110, but no matter what I try, it doesn't seem to work. The router is accessed from within the building via a web UI but require CLI ...
0
votes
1answer
53 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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2answers
132 views

azure endpoint for cassandra does not work for ports 7000, 7001, 7199

I have setup apache cassandra on a centos7 compatible linux machine in azure. I can telnet directly to port 7000, etc on the IP address on the machine, however I cannot telnet to that same port from ...
1
vote
1answer
218 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
vote
1answer
97 views

How to set IBM Websphere 8 to serve web applications on different ports?

I need to deploy two applications as WAR files on Websphere. Both of them will require only HTTPS access. Is it possible to run these two web applications on separate ports on same Websphere ...
0
votes
1answer
58 views

Websphere Virtual Host

IBM WAS 8 gives option to create virtual hosts. At the time of WAR deployment, I am able to map the application to a particular virtual host. For each virtual host, I am able to assign a port number ...
0
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2answers
155 views

Can't make confluence run on port 80 with Windows Server 2012 R2

I am trying to get Confluence to run on port 80 using Windows Server 2012 R2. It's not working even after reinstalling it on port 8090. But the default works great locally. netstat -abn yields nothing ...
0
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0answers
35 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 ...
0
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0answers
37 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 - ...
0
votes
1answer
108 views

How to make Nginx try_files ignore the port the server listens?

I have a server running both OpenVPN and Nginx on port 443: I configured OpenVPN to run on 443 with the port-share option while Nginx runs on 4545. All of this seems to work except the try_files ...
1
vote
1answer
39 views

802.1X port-based wired NAP Enforcement

I'm learning about NAP enforcement in Windows Server 2008 R2. I am unable to grasp how to enforce NAP based on port. I understand that 802.1x wired NAP Enforcement uses switches to decide whether ...
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votes
1answer
30 views

Service port accessible only by one network card

I have server 08 R2 with two network cards. One is for the internal network (10.1.1.x) and another for internet (192.168.1.X connected to the modem). Network clients always accessed a service in this ...
0
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0answers
62 views

Dell 5548P, MIB value for port security violation notification

Anyone have idea on MIB values(OID value) for Port security violation notification with dell 5548P switches.On Cisco its [1.3.6.1.4.1.9.9.315.0], not sure whether i can use the same for montioring ...
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votes
1answer
30 views

Application protocol-based port forwarding/redirection [closed]

I need to split traffic on port 80 between HTTP and non-HTTP, and internally forward HTTP traffic to a port nginx will listen to, and non-HTTP traffic to port 22. Does anyone know of a piece of ...
-1
votes
2answers
428 views

“Connection to host lost” on telnet to port 25 [closed]

i installed smtp4dev to test receive mails in my localserver(xampp) for the registration form here: https://github.com/panique/php-login note: localserver is on port: 8080 my php.ini file for SMTP ...
0
votes
2answers
84 views

Remote port forwarding through EC2 not working, though address is in use

I have a remote machine running a server which I'd like access to locally. However, I can only SSH into the machine, not use any other ports. I booted up an Amazon EC2 instances and opened all its ...
1
vote
1answer
48 views

It it safe to forward an ephemeral port to an internal host in a NAT environment?

Short story, I want to expose SSH from a box in a NATed environment to the internet but would prefer to do it on a high (in the ephemeral range) port. Is it safe to port forward an ephemeral port to ...
0
votes
1answer
145 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 ...