2
votes
1answer
86 views

Use of ephemeral port for server

In general ephemeral ports are used by clients when establishing connection with the server. For example: Server listens on port 80 A client (browser, FTP client, bittorent client) send a request ...
0
votes
1answer
146 views

Should a port scan from the WAN side return any open port on a new router (TP-Link ER6020)?

I purchased a new router (TP-Link ER6020), turned it on and connected my computer to it. The router is running in NAT mode, I did not change a setting (despite providing dsl authentication details). ...
2
votes
4answers
3k views

Should I run my small website in port 80, 8080, or 81?

I am running a small website using nginx. Since there's (probably) not going to be a lot of traffic in my server's lifespan and to avoid random DoS attacks, I am considering setting the web server to ...
1
vote
1answer
67 views

The Risk of Port Forwarding to a VOIP Device

My VOIP provider uses a device to supply the service. The device is on my side of my router and part of my LAN. He requires I forward a very large range of ports to his device (something like 5000 ...
1
vote
2answers
216 views

Source port 443?

I'm might embarrass myself with this question, because of something really obvious, but I'm puzzled. My home broadband firewall log says it has been blocking incoming TCP traffic with a source (!) ...
0
votes
0answers
45 views

Security risks and prevents for sending files over sockets

I am attempting to do Raspberry Pi development and at the moment, I'm normally writing all of the Python code on my laptop and then would have to use a SSH client to send the files across. I've ...
1
vote
0answers
371 views

How to close suspicious port 999 garcon, is it malware?

On Mac OSX, I ran the command nmap localhost and I found I have this suspicious open port: 999/tcp open garcon Then I tried to see if there is an associated process, but nothing shows up with ...
0
votes
1answer
166 views

security risk of opening up a port to access znc [closed]

I run znc on my home server, and I was thinking about opening up the port for it on the router so I can access znc from my computer at work. My znc accounts are password protected. Is it a substantial ...
0
votes
1answer
219 views

Ports 8081 & 161 open on my router but I haven't set Port Forwarding up on that port?

I'm not sure why they're open? It's a UK BT Infinity router. Best way to find out if I've been hacked?
2
votes
2answers
260 views

Can someone access my locally run website even if I haven't specified any port forwarding?

I am using Xampp so I can test my web application directly on my own computer. I am concerned that someone can access my Xampp site since I am still connected to the internet. However, I have NOT ...
1
vote
1answer
330 views

Restricted ports to non-admins on Windows 7

I work in a restrictive desktop/network environment and I am not an admin on my laptop. The ports available to me are limited. E.g. when I tried running Tomcat, the system refused to open a socket ...
-2
votes
1answer
258 views

port 21 and 22 are open on a fresh install of mountain lion

I have Mountain Lion (fresh install as of today), I have also reset the router and it has no port forwarding or anything. There are no other devices connect to the router but just the mac. I did a ...
0
votes
1answer
837 views

Multiple connection attempts per minute on udp port 1024 - What might be the cause?

Here's a small sample from my firewall log: Sep 24 14:51:04 server Shorewall:net2fw:DROP: IN=eth0 OUT= MAC=44:87:fc:8a:f2:c3:00:04:ed:dd:e6:4a:08:00 SRC=213.5.110.105 DST=10.1.1.3 LEN=131 TOS=00 ...
0
votes
1answer
286 views

Are there any security problems within my CentOS system? [closed]

I have tried to use Nmap to test the ports of my server:) The details are as follows. Are there some vulnerable ports on my server? If yes, why is it vulnerable, and what should I do in order to ...
8
votes
6answers
4k views

Port scan revealed port 1111 open. What is it?

I am new to systems administration and have a new server running a website with http (at port 80), https (at port 443) and ssh (at port 22). I did an nmap port scan using my personal laptop and other ...
2
votes
2answers
807 views

Port Scan: What is “netvenuechat”?

I was doing a quick port scan at work (Nmap 6, OS X 10.6.8), and I noticed that nearly all of the computers around me were running a service called "netvenuechat" on Port 1023. Although I've searched ...
0
votes
2answers
252 views

Nmap -oG output

I've read about the -oG and tried it out, but it seems to not to working for me... SO basically I'm trying to scan for a port range, lets say for example 2.8.0.0 – 2.15.255.255 and for a list of for ...
1
vote
1answer
493 views

How can I configure my SOHO Windows 7 machine to host a Minecraft Server that requires people to join the VPN prior to connecting?

Is that possible? Basically having some security issues with having the port open. Wondering if I can expose the Minecraft Server to a VPN only so that users will need to authenticate and join the VPN ...
3
votes
2answers
392 views

Weird hits on port 2703

I'm getting these periodical console messages on my Mac: 7/22/11 8:01:03.925 AM Firewall: Stealth Mode connection attempt to UDP 10.0.0.1:2703 from 91.143.232.133:15881 7/22/11 8:01:05.885 AM ...
2
votes
3answers
4k views

I own an FTP server, and need port 21 open, how do I keep it secure?

I was wondering, because I need both my port 21 open on my router and my firewall for it to work, but then it seems as though it's wide open for attack. Is there any way I can keep it secure? Luckily, ...
0
votes
1answer
292 views

ZoneAlarm is blocking box.net in Firefox but not in Chrome. Open ports 80 and 443?

This may not be the place to ask this question, as the usual suspects---ZoneAlarm, box.net, and Mozilla---have forums of their own for these kind of questions. But I've emailed support at ZA and box ...
1
vote
1answer
1k views

Why does my Belkin wireless router has eMule port open?

I have a Belkin F6D4230-4 v1 router. When I port scan it with nmap I get the following: $ sudo nmap -sS -A -T5 192.168.2.1 -p- Starting Nmap 5.00 ( http://nmap.org ) at 2010-04-17 11:40 CDT ...
2
votes
2answers
2k views

What port needs to be open for Debian to get updates?

I was considering deploying my web application on a Debian virtual machine. However, I want to lock it down as tight as possible (i.e. traffic in/out). I was wondering which, if any, port I needed to ...