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Questions tagged [port]

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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reroute request by port in iis7

I'm trying to set a webapp in iis 7 to forward requests to a specific port to a controller inside the website. I need that every request sent to http://server:6035/{QUERY} will be rerouted to http://...
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Docker and csf when running outline server

I've installed Outline (uses Docker) on my server while I have csf firewall enabled. the problem is I don't know what incoming and outgoing ports should I add to csf whitelist.
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Make HTTP and WebSocket share the same connection with thttpd

I would like to make HTTP and WebSocket share a single TLS-encrypted connection to the port 443. I know it is possible with nginx and apache, but what about thttpd?
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Port 80 not open [closed]

I am a newbie and being treated as one, that's OK. I am not aware of the protocols needed to communicate so being shut out, NOT OK. Guess you all never was a newbie, good for you. Trying to migrate ...
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1answer
44 views

Windows - Webserver cannot bind to port 80, but no known processes are using the port

Long time ago I have created a Powershell script that stops the Apache-service, delete the webserver logs and the start the service again. Have had no issues until recently when the stop-process has ...
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22 views

Monit throwing failed protocol test [HTTP] instead of starting process

I have a custom process (an elixir application) running. I want to setup monit for it. I am setting up the monit check in /etc/monit.d as the following: set daemon 30 check host meraj-pc with ...
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1answer
13 views

linux port forwarding between two nics [closed]

I have a vicidial server running on suse. I have installed two nic cards. One nic connects to my local network and the other connects to the firewall. The config is as below: Nic 1 : 192.168.2.21 (...
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23 views

Nginx port refusing outside communication on Linux

I need to open port 82 for Nginx to route some CURL requests to Elasticsearch. Localhost requests are passing just fine when I do "curl localhost:82/" but from my machine it is being refused with "...
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2answers
62 views

Working with port 443 only and blocking port 80

We're trying to harden firewall settings for a computer. We allowed only port HTTPS (443), NTP (123) and DNS (53). Now we fail to send POST requests to a web api application unless we open port 80. ...
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1answer
37 views

Why do I need to configure a Trunk port?

I am relatively new to networking; I love to learn, but like to firmly grasp a concept before I move on. This being said, I researched what a trunk port is and I found this definition: [It ...
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1answer
31 views

How can i set the source port for SSH on unbuntu server? [closed]

I am creating a web challenge, and due to a firewall, i need to be able to set a static port for the SSH source port for it to go through the firewall. Is their anyway to do this using maybe netcat ...
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1answer
92 views

Cannot use port 80 twice with different ip addresses?

I have an interesting problem right now. On a Windows Server 2012 R2 I have two IP addresses, say 192.0.2.1 and 192.0.2.2. On one address e.g. 192.0.2.1 a web server runs on port 80, which is ...
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1answer
33 views

SSL Check - Exchange Server responding with Self-Signed Cert

How do I set an Exchange server to respond to a Web Based SSL Certificate checks on a specific port number with the Public Cert? If I do an SSL cert check on port 443 it gets the Public cert as the ...
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1answer
33 views

Don't understand Guest_ipaddr in iptables instructions

I am trying to port forward over NAT to a VM in a home network with this guide. (https://aboullaite.me/kvm-qemo-forward-ports-with-iptables/) However, there is a part that requires me to substitute ${...
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61 views

Port forwarding through VPS with OpenVPN to Client

In an attempt to allocate a public IP to a server inside my network i have the following scenario: VPS running Centos 7 and OpenVPN server with public IP 162.208.11.152 on interface venet0:0 Local ...
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0answers
23 views

Configuring a Zimbra server what port to open on the perimetral firewall for outgoing traffic?

I've got credential to access a server where i need to install zimbra server, prior to that I've asked to have this incoming port opened on the perimetral firewall of the isp: https://wiki.zimbra.com/...
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2answers
63 views

Changing ssh port on fedora-26

I vimed into /etc/ssh/sshd_config I edited #Port 22 to #Port 922 After I restarted httpd. service httpd restart However, ssh still only works on -p22. How do I edit the ssh config file to ...
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1answer
95 views

Cannot block port 389

I have been trying to completely shut down port 389 on windows firewall. I went into the firewall and added a rule stating to block ALL connections for TCP and UDP for the port 389(Inbound and ...
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0answers
103 views

plink.exe remote port forwarding to local machine for dynamic port forwarding

I have been trying since 2 days to do the following: I have a windows machine, let's call it A, and a Linux machine called B. There is a firewall between A and B. I want to connect remotely from the ...
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0answers
35 views

Glassfish 4.1 domain couldnt start. — it probably is another instance of a GlassFish server

I have glassfish app on my Linux red hat 6. I cant start my glassfish node it gives me next error : There is a process already using the admin port 5858 -- it probably is another instance of a ...
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1answer
87 views

Serving different secure sites based on port on same domain using nginx

I want to run multiple sites on the same domain, using nginx, but on different ports and want them all to use SSL Let's say, I have two sites siteone.com and sitetwo in the directory /var/www/ as ...
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1answer
44 views

Close Port 587 - Ramifications?

Our recent PCI scan failed because "Plaintext authentication is allowed over unencrypted channel on SMTP." As such, our tech support suggested to close port 587. What are the effects of closing port ...
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1answer
16 views

Issue accessing remote web service port from a Windows Server box

I have an issue where every laptop and phone I have access to can access a 3rd party remote URL (which contains WCF service) at an address like: http://example.com:17001/ServiceName.svc This can be ...
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1answer
28 views

2012 R2 Server stopped allowing external connections overnight

I am using a 2012 R2 server that we use for remote desktop. Overnight, external connections suddently stopped working - no changes to the server, no reboots ( i have now the problem presented ). ...
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2answers
98 views

How does a load balancer get around the 64k port limit? [duplicate]

When a request comes in, it gets rerouted to one of several available servers for the request. But there's only 64k ports available so at any given time there can only be 64k outgoing requests max. So ...
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1answer
90 views

cassandra port is closed

I am trying to connect to a cassandra installation from a remote machine. Cassandra is running the thrift service on 9160 which is the default port. But I cannot connect the DB and I always get ...
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1answer
79 views

ngrok[14746]: Incorrect Usage: flag provided but not defined: -domain

I am trying to create ngrok service in Kali Linux following this link:https://amito.me/2016/09/Building-Your-Own-Ngrok-Service-on-CentOS-7/ leafpad /usr/lib/systemd/system/ngrok.service [Unit] ...
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1answer
38 views

hostname and ip shows different record for port 4444. why?

I am trying to block all systems ports accept 4444 in Kali Linux. I added 4444 in my iptables and restarted iptables service. now nmap hostname -p 4444 is displaying it as open port but when I am ...
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1answer
34 views

Finding the value of `TIME_WAIT`

How does one determine the value of TIME_WAIT for port reuse? I am running a non-persistent HTTP load generator on a client box and need to find this value on the client. I see cat /proc/sys/net/ipv4/...
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1answer
62 views

Authbind Permission Error when binding socket to port

I’m running a Jupyter Notebook server on my Mac, and I’m trying to use authbind to run the notebook server on port 443. I’ve created the file /etc/authbind/byport/443, changed the ownership to the ...
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3answers
94 views

Trace an Unauthorized IP Scanner within a private network

I ran over a response that stated running an IP/Port scanner (fing) could alert an administrator. I am a curious being and have run about a bajillion unmalicious network scans without any consequence ...
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2answers
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Apache serve specific documentroot on IP:PORT

I want to serve a specific documentroot on port 8000 I tried creating a .conf file in /etc/httpd/conf.d: Listen 8000 <VirtualHost *:8000> DocumentRoot "/newwebroot" </VirtualHost> ...
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0answers
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Port accessing error for a docker app on google compute engine VM instance

I'm trying to deploy an web app in a VM instance at Google Compute Engine (GCP). I connect to instance via ssh and deployed docker-compose orchestrated app. Which runs two docker containers as below. ...
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1answer
259 views

How to free the TCP port 80 on a Synology Diskstation

I'm running DSM 6.1.6-15266 Update 1 and have installed Apache with Entware. However when I attempt to start it, it claims it cannot bind to port 80: something which needs to happen. When I go to ...
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1answer
28 views

How to make sure 8080 is accessbile outside the server?

How to open a 8080 port for an application, with iptables I see the above thread. And I run the following commands. But it seems that 8080 is still accessible outside the machine. Does anybody know ...
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Port not opening

I have a dedicated OVH server and I am trying to open port 30110 for outgoing TCP and port 30120 UCP/TCP for incoming and outgoing. I am trying to install a server through fivem.net. I tried to hire ...
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2answers
279 views

How to know if the server application is listening on ipv6

In a VPS (webfaction) I opened a port 14152 and I am running an application which is listening connections on that port, this is the output of netstat -putan | grep 14152 udp6 0 0 :::14152 ...
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1answer
47 views

IPtables Logging for services

I am logging all incoming and outgoing IP connections and ports to my Linux server with IPtables LOG. Now, I wish to log the services to which these IPs connects in server. Example, if the connection ...
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1answer
62 views

Port not responding remotely, but shows as open locally

UPDATE: I opened a ticket with DO and was informed that they'd automatically closed port 8083 due to the VestaCP vulnerability which allowed root access to droplets. While I'm happy that I found out ...
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1answer
43 views

Uderstanding netstat output

When I run netstat -b on Windows 10 I get lots of results of similar nature TCP 127.0.0.1:64248 LocalHostName:64249 ESTABLISHED [w3wp.exe] TCP 127.0.0.1:64249 LocalHostName:...
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1answer
128 views

What is service “ismserver” listening on port 9500?

I am on Ubuntu 16.04 Upon nmap -sV localhost, I came upon the output line 9500/tcp filtered ismserver which I cannot recognize. The service ismserver listening on the port matches the IANA record, ...
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74 views

Port is open and listening but is denying connections

Port is open and listening but is denying connections. When trying to CURL in terminal curl --data-binary '{"id":"curltext","method":"addrequest","params":{"amount":"3.14","memo":"test"}}' http://...
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1answer
169 views

nginx 1.12.2 not binding to ports on Centos 7.4

I have installed nginx via yum on Centos 7.4. I've added some sites to /etc/nginx/conf.d that listen on port 80. Here is an example: server { listen 80; root /var/www/vhosts/somesite; ...
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0answers
305 views

Haproxy route to port based on URL path

I'm fairly new using Haproxy and am launching this app that is bound to Port 85. I have set up what I think I need in the config file. When I try to access the app URL in the browser it seems to work ...
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26 views

Active Directory: RPC Issues, Trust between 2003 and 2012

I've been having this ongoing issue that has been plaguing me. I am in charge of two domains: DOMAIN1 - Functional Level 2003 DOMAIN2 - Functional Level 2012 I was able to establish the trust ...
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1answer
202 views

Why do the port change when sending TCP data on localhost [closed]

I'm new to network programming and I'm starting simple. I got 2 simple python scripts both running on my machine, a server and a client, the client sends some data using the port 80 and the server ...
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1answer
111 views

Is a DDoS possible if the port being attacked is closed?

Let's assume a hypothetical situation in which port 50000 of a machine was being bombarded with UDP packets. However, port 50000 on said machine isn't actually open (i.e. the machine is not listening ...
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56 views

IPtables port redirection

I'm pretty new to IPtables. I'm trying to redirect all the traffic that I receive on a specific port to the port 80, but I think that I'm missing something. The rule that I wrote is: iptables -t nat ...
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1answer
334 views

Apache 2.2.3, DISABLE redirect port 80 to 443

Sorry if I'm not clear, I'm newbie... We have a server Apache 2.2.3 on RHEL. In the httpd.conf there is no VirtualHost configuration, And the iptables service is stopped Based on this, https://...
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1answer
207 views

Nginx silently fails to reload (98: Address already in use) but nothing else is listening on port

I am trying to figure this out for nearly 6 months now. The issue is present randomly regardless of Nginx or Ubuntu version. The nginx-extras package is used from the Ubuntu repositories. This is a ...