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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Trouble changing SSH port

I'm running a CENTOS web server with WHM and CSF firewall. I'm trying to change SSH from the default port. I've opened up the port in CSF and modified /etc/ssh/sshd_config uncommenting the port line ...
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1answer
1k views

UFW — How To Open Port 8080

I thought I had allowed connections to http-alt (8080) using ufw. My reasoning for thinking this is because: gerrit2@localhost:~$ sudo ufw status Status: active To Action ...
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1answer
39 views

Changing Samba port doesn't work

I want to change the Samba default ports for testing. I tried adding "samba ports = 1445" to the samba config, but now I can't connect to it at all! I also tried adding -p 1445 to the samba start ...
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1answer
713 views

Failed to bind to: /0.0.0.0:443 [closed]

I am having problems starting my play framework server on port 443,i am using scala play 2.20 and my play server running fine on port 9443 by following command ./start -Dhttps.port=9443 ...
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2answers
689 views

How should I select the port number for a new tool?

I'm creating an internal collaboration tool that will use a central server (on an intranet) and one or more ports for socket communication to clients. I know that many ports are reserved for ...
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1answer
390 views

proxypass /jenkins to port 8080?

Hi I have a VPS running cpanel and it is also running Jenkins on port 8080 I have used proxypass in the Apache config to redirect jenkins.rystuff.net to port 8080 but was wondering if there is a way ...
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1answer
45 views

redirect to specific port without apache

I'm running a few small web applications listening on different ports... 8787, 8888, & 8000. None of them are apache though. Is there any way via either DNS or iptables, or some other way, that I ...
0
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1answer
292 views

Failed PCI DSS Compliance

I got this from my compliance check results. To me it looks like my router is responding to their test but I'm not sure where to go . ( might be off track completely though) Description: PCI DSS ...
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3answers
395 views

IPTABLES won't keep changes on restart [duplicate]

I have a hostgator VPS that has a CENT OS. When I stop the VPS and start it again, the changes I've made to the IPTABLES won't save I've tried to save the IPTABLES and to no avail. Every time I ...
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1answer
191 views

Ubuntu IPv6 port redirect using ufw

I'm trying to configure port redirection from port 80 to 8080 on server with both IPv4 and IPv6 support. The OS is Ubuntu 14.04 with the 3.2* series kernel. It is a production server, so I don't want ...
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3answers
84 views

Make port accessible only from localhost

I'm using a software which is accessible by http://server_ip:certain_port I want it to be accessible internally only, by http://localhost:port. How can I block those ports from the outside?
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0answers
218 views

One public IP and two web servers

We have our IBM server (internal ip: 192.168.1.128) connected to internet via router (192.168.1.1). I have forwarded the following port: Port 80: internal IP 192.168.1.128 for incoming HTTP ...
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3answers
221 views

CentOS/Linux Block External Port

Suppose I have an internal service running on port 7676, how would I (On CentOS) block port 7676 from external sources, so that it can only be accessed locally - AKA 127.0.0.1, not using, for example, ...
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2answers
3k views

Nginx 502 Bad Gateway - 111: Connection refused, port not being listened to

I'm aware there are many other similar questions but the solutions from those questions I feel I've already got in place. I've got 3 sites running locally on a VirtualBox Ubuntu 12.04.4 LTS Server, ...
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3answers
232 views

How do I get iptables to allow a new port (for a webserver sockets handler)

In the local development server, I don't have any iptables rules (running on a Mac). The production server however, runs CentOS 6 with certain rules. I need to add a rule that allows the client to ...
0
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1answer
842 views

Error changing mysql 5.6 default port

I've changed my.ini with port=3308 but after restart the service mysql 5.6 is working in the same default port 3306. I've tried in mysql 5.5 and it worked fine. C:\Archivos de programa\MySQL\MySQL ...
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0answers
17 views

how to identify and eliminate previously assigned port

We are running Sharepoint WSS3.0 2007 standard. We used to allow a sister division to utilize this product. I have moved them to a Google site. Now, I believe I want to make certain that the port is ...
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2answers
201 views

After kill -9 process won't disappear and port is still bound

We have a Java server application running on Mac OS X. Occasionally this application has become unresponsive, and we have resorted to killing it with kill -9. However, the process doesn't disappear; ...
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1answer
236 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, ...
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1answer
334 views

Trouble with port 80 nating (XenServer to WebServer VM)

I have a rent server running XenServer 6.2 I only have 1 public IP so i did some NAT to redirect ports 22 and 80 to my WebServer VM. I have a problem with the port 80 redirection. When i use this ...
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3answers
2k views

How to run node.js app on port 80? Are processes blocking my port?

I believe the port 80 on my remote instance is blocked, and I am trying to run a node.js app using port 80. I have experimented with ports 3000 and 3002, and both ports are working fine, but I get an ...
2
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1answer
65 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 ...
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2answers
149 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 ...
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1answer
652 views

mosh-like port forwarding

This is on linux, connecting to linux servers: I love mosh, but it doesn't support port forwarding, and likely won't for a while since it's been almost a year now and it hasn't happened yet. port ...
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2answers
81 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 ...
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3answers
130 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
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1answer
181 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: ...
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0answers
178 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 ...
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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 ...
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0answers
100 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 ...
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2answers
169 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 ...
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1answer
59 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 ...
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0answers
297 views

Trying to change a custom VPN port back to the original on Fortigate 40C

We recently changed our firewall and bought a Fortigate 40C device. We wanted to use our old VPN settings. The Fortigate support technician told us that this model was new and he didn't know it in ...
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2answers
120 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; ...
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1answer
909 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 ...
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1answer
265 views

Can't connect to remote server. Socket error = #2000

I don't know what went wrong, but I get a Timeout after logging in to the proftpd server. STATUS:> [12.05.2014 16:30:24] Getting listing ""... STATUS:> [12.05.2014 16:30:24] Resolving ...
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1answer
31 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 ...
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1answer
883 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 ...
1
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1answer
462 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, ...
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1answer
73 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 ...
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1answer
156 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 ...
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2answers
426 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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1answer
210 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, ...
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2answers
404 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 - ...
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4answers
2k views

How can I set Postfix outgoing port to 465, but keep incoming port to default?

My ISP blocks port 25. So, I cannot connect to my server and send emails. I've tried changing it to 465. And it works! However, after this change, I cannot receive emails anymore. # # Postfix master ...
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1answer
48 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
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1answer
139 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, ...
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1answer
36 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
302 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 ...
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1answer
252 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 ...