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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Linux - TCP Source Port Reuse (and delay)

We have an application making a lot of calls to a remote web server/service. Client app is JBoss/Java on Linux (Red Hat 5), remote server is Windows 2008. There is a Cisco ACE in the way but there ...
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219 views

Apache keeps adding 8080 port by itself while I'm telling it to use 80 only

Here's my httpd.conf. Inside it, I have the following in place #Listen 12.34.56.78:80 #Listen 127.0.0.1:8887 Listen 127.0.0.1:80 #Listen 127.0.0.1:8080 Listen 192.168.1.4:80 and I have a .htaccess ...
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Deploy multiple applications in Cherokee and distinguish them by port?

I am having an issue on deploying applications with Cherokee web server. The thing is I need to host various Django applications in the same machine and distinguish each one by ports (i.e. app1 in ...
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50 views

what is PAT exactly?

In attempt to understand PAT, I've setup the following setup where I have a Linux Router that masquerades from in internal interface to the external. Thus both clients are able to talk to outside ...
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2k views

How to reverse proxy specific ports to a different server behind a firewall using Apache mod_proxy

I have two Web severs, one Apache 2 and the other IIS 8, and both are on a LAN behind a firewall. I have ports 80, 443, and 8080-8088 open on the firewall. I have an externally hosted DNS A record ...
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73 views

forward a specific port from linux server (ubuntu) through firewall server (ubuntu)

I'm doing the following: % autossh -i YYY.pem XXX@SERVER -N -R 90:localhost:9000 -o ServerAliveInterval=30 to forward a server port from the local machine to the public machine. But connections ...
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226 views

Static Public IP OpenVPN Client Needs to Accept Incoming Connections on His Public IP

I love serverfault, I have learned quite a bit from this website. Hopefully I can learn one more thing. OpenVPN Server has 30 Static WAN IP's each one has 1 user on it. Plus there is a main IP ...
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33 views

Java BindExceptions in delayed stop/start conditions

I have a script that will automatically stop a server and restart it on the same port/ip address. I've noticed that some mornings the server doesn't restart successfully because it gets Java ...
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41 views

Win 2008 firewall exceptions wont save

Possible Duplicate: My server’s been hacked EMERGENCY Windows 2008 R2 - all updates. The firewall used to work fine - since i edited the exceptions, up until now. Im getting RDP brute ...
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483 views

Port seems to be in use although the corresponding process has already terminated on AIX 6.1

While running some kind of automated tests on our AIX 6.1 machine we are facing the problem that a port seems to be in use although the corresponding process has already terminated. E.g. if we kill a ...
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can't connect to a server through specific port

From my server I'm trying to connect to another server I'm trying using the command via SSH telnet 64.31.62.219 60099 it is connecting without problem on my local machine and from a server I ...
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How to open ports in Cisco ASA 5505 using ASDM?

am new to cisco and i badly need help in opening ports using ASDM. I already tried natting but it only allows 1 outside and 1 inside rule ex. Inside Static Rules 10.x.x.x outside 72.x.x.x Outside ...
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333 views

Cisco ASA 8.4 Port Forwarding Site-to-Site VPN

I have a Cisco ASA (running ASA 8.4) which has a Site to Site IPsec tunnel to three sites. These sites have overlapping address ranges, so on my ASA I have setup NAT so everything is accessible. I ...
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136 views

ejabberd changing ports?

I changed the ports in the listen section (just added a 1 in front of them) in the /etc/ejabberd/ejabberd.cfg, but after a /etc/init.d/ejabberd restart The server still listens on the original ...
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383 views

VisualSVN Port Forwarding is Not Resolving

I am using the FreeDNS Update client to dynamically update the IP address of a subdomain. I can access https://localhost:8282/svn/ on the laptop but I cannot access it from ...
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229 views

Is it fundamentally wrong to ask an FTPS client to connect on port 990/989 using explicit mode?

I have recently setup vsftpd to listen on port 990 for FTP over explicit SSL. I know from the RFCs that 990 is normally used for implicit. However, we have other FTPS servers accessed from the ...
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136 views

Trying to connect to sql server on ec2

I moved from my home office to an office in midtown. I can't figure out how to connect to my sql server hosted on Amazon. I'm using the exact same VmWare image just on a machine in the office. I can ...
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841 views

CruiseControl doesn't run as a Windows service

I am having a problem with CruiseControl on Windows. I can get CruiseControl to run on its own without problems right after installation. However, when I run the Windows service for cruise control ...
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22 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. ...
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28 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 ...
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31 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 ...
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54 views

iptables only partially redirecting ports

I am moving over everything that uses port 80 to port 9000 on my server, so I configured my apache + it's virtual hosts to listen to 9000 using ip xx.xx.xx.106, and I set up my iptables to preroute ...
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117 views

Using iptables to log traffic from port mirroring

I configured one port of my switch to do port mirroring of the other ports. I connected to this port mirroring a server where iptables has some rules. If some rules are matched, iptables sends to the ...
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64 views

Infiniband dual-port redundancy

I want to setup redundant infiniband networking. I am going to use servers (Centos 6.4) with dual-port IB adapters (Mellanox Connect-X III series) and two unmanaged IB switches. I know that IB paths ...
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69 views

Only Apache can listen to port 80 on MacOSX

I have a python web framework, Tornado, trying to listen on port 8000 but failed. Under the testing conditions below, firewall has been disabled in system pref pane. ipfw list shows 65535 allow ip ...
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269 views

selenium.common.exceptions.WebDriverException: Message: 'Can not connect to GhostDriver'

I'm trying to run PhantomJS from within selenium.webdriver on a Centos server. PhantomJS is in the path and is running properly from terminal. However in the script it appears to be launched, but ...
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13 views

Display number of bytes transferred over a port

how can i display the number of bytes transferred over a certain tcp port? I know there are several tools (iptop,iptables...) which can monitor this, but what i need is an absolute counter. I poked ...
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153 views

Change default ssh port on Fedora EC2

I have changed my /etc/ssh/sshd_config adding multiple ports for it to listen: $ grep Port /etc/ssh/sshd_config Port 22 Port 80 Port 443 However, after a service sshd restart (which shown no ...
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How do I use pfctl to forward certain domains + ports to domains:80?

I did man pfctl, but I have to admit, it's way over my head. I'm not a server admin. I know my way around *NIX, but pfctl is confusing to me. From my understanding tho, I can use that to make ...
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199 views

RabbitMQ message broker unable to open unused port 61613

On a Windows Vista system, RabbitMQ fails to open port 61613 which is not used (as netstat and TCPView show). The server log indicates that it is possible to bind port 5672, but the next lines show ...
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96 views

Access Denied for Specific FTP Client

I have a couple FTP servers setup which I am unable to access using a particular client machine. The client is a Windows 2012 server in my company's network over which I do not have admin rights. ...
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88 views

set DMZ server on modem that not support DMZ, using port forwarding

I have to see an application server from outside of my network, but the modem that I am using is a Zyxel P-660-HN-T1H that not supports DMZ server configuration.So, which port(s) I should forward to ...
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49 views

Multiple Ports Forwards, Most Working, but Not All?

So I have this ASA5505 setup and pretty much everything works, except a couple key port forwards. Can anybody spot ANY reason why SOME port forwarding would not work? Specifically I know the 50000 ...
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32 views

apache2 connection hangs

I'm kinda new to Apache2 and all the server stuff and I am facing a strange problem I have set up a reverse proxy in apache.config, so that all the calls with /api/ will be forwarded to port 8015 ...
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50 views

Prevent port from being used by anything but one application

Is there a way to make only java be allowed to use a certain port? OS: Windows Web Server 2008 R2 No access to router (hosted box).
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iptables denies internal access to port 17500

In the kernel log there are hundreds of these lines. The source is the external IP of the VPS (not localhost nor 127.0.0.1), other times an IP of the network of the VPS provider. The source port and ...
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703 views

How to change L2TP/PPTP VPNs port

on centos 6 there are open source implantations of L2TP VPN (e.g xl2tp), i wanna know that if default l2tp vpn port blocked can we run vpn on different ports or maybe change cipher setting ? what ...
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is it possible to set DCOM static TCP endpoint from Server - FIx WMI Port SERVER SIDE

I need to establish remote WMI Connections from a Windows Server 2008 with static port. I know that WMI calls use port 135 and then chooses a random port, what I would like to know is if WMI can be ...
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148 views

Plesk 10 VPS - Site on extra port?

I'm building my own custom content management system for a my websites. I want the content management-site to be available through another port so I can do this: www.mysite.com:8844. The server I use ...
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3k views

Cannot telnet to SQL Server on port 1433

I've been working solidly on this issue for the past three weeks. I cannot seem to find where the actual issue is. I just recently found this article on how to troubleshoot the connection. I made it ...
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Can't access the Hyperic web interface

I managed to install Hyperic on Rackspace Cloud instance and started the server & agent. At the end of the install, the shell said "install successful, you can connect now to http::" but it ...
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603 views

SMTP port 25 - connection refused

Here is the error I have running a python program that sends a mail: Traceback (most recent call last): File "D:/Share/Backup/DEV/2_tools/bbb_reports.py", line 116, in <module> ...
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118 views

ISA running out of Ports

In my new job, since a couple of months ago, the ISA 2006 server stops accepting VPN connections. Once that happens, we restart it, and it all goes back to normal... for the next 12 hours or so. I ...
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100 views

mstsc.exe keeps on conflicting with other application intermitently

I am wondering how can you know who is running the mstsc.exe? I have recently in my PC that the mstsc.exe listens to the port that I am using. I read that mstsc.exe is used by the remote desktop. Also ...
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102 views

Site not working, not sure how to open the ports

We are running a VPS on win2008. I have two static IP's that are configured for one NIC (probably all virtually because it's a VPS). In the firewall I have a rule to allow traffic inbound on ports 80 ...
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96 views

Blocking Port By Firewall

I want to block port by APF Firewall and i set it in conf.apf : ** Common inbound (ingress) TCP ports IG_TCP_CPORTS="22,80"** in this conf.apf just this port allow to connect : 22 , 80 but when ...
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263 views

Sonicwall GLobal VPN Client (V4.2.6.0305)

I have two computers at home from which I work, a desktop and a laptop(both using static addresses of nnn.nnn.nnn.122 & nnn.nnn.nnn.15. Both are behind the home router/firewall. I currently have ...
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249 views

What port should I open to connect postgres via pear MDB2

I'm using Pear MDB2 to connect my postgresql base. dsn variable looks like user:pass@host/base_name I have such an error: MDB2 Error: connect failed, _doConnect: [Error message: unable to establish ...
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openbsd “/usr/ports/infrastructure/build/out-of-date”-script

I have a question regarding the openbsd "out-of-date" script for ports. For the port "nss" for example I get the output, that there is an update vom sqlite3.13.3 to sqlite3.14.0. Why do I get this ...
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219 views

How to change net-snmp ethernet interface scan

In the trap message send from the client to the server using net-snmp, the agent address is the first active interface on the client and not the actual eth port on client that is connected to the ...