A firewall is a piece of software that controls what connections can be made to and from a network.

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438 views

Opening port on mac os x (mavericks) for nodejs

I am running a node.js app locally and would like to make it available for demo for outside world. It is running on port 3000. I have added node to the firewall to allow incoming connections but ...
2
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0answers
941 views

Windows 8 firewall blocks browser downloads

I have a curious issue with the windows 8 firewall. When using chrome and internet explorer for hotmail I can't download word or pdf attachments. I also tried to download adobe reader with with ...
2
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261 views

How can I get Apache on OSX 10.8 to serve up a directory under a user home directory?

There might be more than one problem here, but I got my Mac back from the shop after the hard drive was failing, and the new hard drive reproduced my home directory but not httpd.conf. Since I have ...
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0answers
633 views

Firewall blocks ICMP even with Allow rules, even when disbled

Sometime early October (right after update Tuesday???). My Window 7 home machine stopped responding to anything incoming. Effectively breaking iTunes, Sonos, TiVo Desktop, RDP etc. But all those ...
2
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0answers
840 views

How to open a server port outside of an OpenVPN tunnel with a pf firewall on OSX (BSD)

I have a Mac mini that I use as a media server running XBMC and serves media from my NAS to my stereo and TV (which has been color calibrated with a Spyder3Express, happy). The Mac runs OSX 10.8.2 and ...
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0answers
278 views

Can I get UDP Hole Punching with (any) VNC client to get around the local firewall/router?

I don't have access to the local internet router, so I'm unable to setup port forwarding on my lan connection. I'm just trying to find out if there is any way for me to get around my local router ...
2
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0answers
407 views

Remote desktop on custom ports

We have an office with a Windows 2003 SBS server and a couple of workstations. I set up Microsoft remote desktop for each of the computer in such a way that anyone could remote into the computers ...
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1k views

None of the clients of LogMeIn Hamachi mesh-network are reachable

For some reason my Hamachi network stopped working. Here is what I have Version of the Hamachi client is 2.1.0.122 It's "Mesh" network. I have 7 clients, 3 of them are online right now. All clients ...
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649 views

How do you add a MAC-based routing whitelist with DD-WRT and the OpenVPN client?

I have an OpenVPN client set up on my DD-WRT home router which maintains a VPN into my workplace. Slight problem: I don't want random lusers who access my wireless AP to have access to my company's ...
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8 views

IPSet with IP6Tables ERROR

Can someone please solve my headache and tell me how to fix this? [root@www xtables]# ip6tables -I INPUT -m set --match-set blacklist6 src -J DROP ip6tables v1.4.7: Couldn't load match ...
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16 views

Is it possible to restrict access to certain URLs for individual programs?

I have a certain use case where I want to whitelist a list of URLs that a certain application can access. In other words, I want to sandbox it, but don't have access to blocking or white listing those ...
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55 views

Why does NTP require bi-directional firewall access to UDP port 123?

From What are the iptables rules to permit ntp?: iptables -A INPUT -p udp --dport 123 -j ACCEPT iptables -A OUTPUT -p udp --sport 123 -j ACCEPT Also, from the NTP website: ... ntpd requires ...
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0answers
49 views

Firewall Block all outgoing connection

I want to block all outgoing connection. I have created a custom rule: C:\Windows\System32\netsh.exe advfirewall firewall add rule name="blockout" dir="out" action="block" enable="no" ...
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74 views

Conntrack/NAT's port mapping for a specific port breaks whenever that port's service is shutdown for too long. How can I fix this?

Linux Gentoo 3.13.6-hardened-r3 #1 SMP Sat Apr 12 09:17:25 EDT 2014 x86_64 Intel(R) Core(TM)2 CPU 6300 @ 1.86GHz GenuineIntel GNU/Linux hardened with grsecurity and selinux with a strict policy in ...
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0answers
139 views

Is it possible to route all traffic on VirtualBox host adapters to guest?

I am upgrading Ubuntu 8.04 on a dedicated router/firewall/NAT/SMTP/SSH server with a current Linux (Debian Wheezy). I am using VirtualBox (4.2) with Ubuntu 8.04 as host and the new Debian build as ...
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0answers
30 views

Juniper Firewall setup

I bought an old Juniper 5GT firewall simply to do some port filtering. I have set the device up in a DMZ zone of my home network, there is a server behind it and it has been assigned an IP by the ...
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98 views

Setting up Windows Firewall to only allow local traffic for specific port

I have spent the past few hours trying to figure out how to use Windows Firewall on a Windows 7 Home Premium computer. From what I can tell, it was definitely designed for computers in business ...
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101 views

Block Youtube HD content on home network

I have a DSL connection that terminates into a "beetel 450tc2" Modem/Router. I have 2 laptops (Mac Book Pro and Windows 8) and about 5-6 Phones/Tabs connecting to this network over WiFi. My problem ...
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153 views

Secure reverse UltraVNC connection to bypass firewall

My clients and service run on mostly Windows 7. I need help setting up a secure reverse connection with UltraVNC between me and a client.(Me=Viewer, Client=Server) Here is my situation: I want to ...
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77 views

Setting home computer as www web server

I know I'm seriously missing some steps. I need to set my home Fedora 19 running computer as a web server and available it to internet. Its behind a normal home broadband modem connection. my ip ...
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384 views

Is Comodo Firewall and Zonealarm Firewall compatible with avast free 2014?

on windows 8.1 currently using avast free antivirus 2014 ,is it possible to use free firewall like comodo or zonealarm with it simultaneously with avast?After installing any will problem occur?
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74 views

Any way to see ddwrt logs with website/PC names etc?

We used to have a dlink dir655 router that had logs in the interface. The logs were simple,easy to read, and had the name of the computers, iphones, etc on it. This made it easy to pinpoint who was ...
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130 views

Cannot fetch urls from outside the browser

I am trying to clone a small repo on my Windows 7 PC using 'msysgit' bash command like as follows: talha.ahmed@ICE-088 /d/talha.ahmed/workspace/repos $ git clone https://github.com/torvalds/linux ...
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50 views

Windows - MAC address whitelist on wired network?

In Windows (XP or 7), is it possible to configure either Windows, a software firewall, or network cards such that the computer will only communicate with specific known MAC addresses (e.g. the MAC ...
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122 views

SMB over SSH port forward

I know that since SMB is not secure, opening port 445 on firewall makes your computer vulnerable. To secure my connection, I want to run a SMB mobile app via SSH. Would I still need to open port 445 ...
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44 views

My new computer is blocking access to my webserver when in use

I have been running a web server for a while. It is hosted using lamp on a computer that I have running Ubuntu and has worked fine until recently. I got a computer that runs Windows 8 to use as my ...
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870 views

Can't connect to qbittorrent (or other client) Web UI, except through localhost

I'm trying to use qBittorrent's (I've also tried other torrent clients') remote Web UI, but can't seem to get it to work. I can connect just fine using http://localhost:PORT, but can't connect using ...
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65 views

Define IPTABLES rule

I am working with a linux based UTM appliance and have some disagreement with the client on the operation. THere is a standard GUI to configure port forwards in the firewall but for some reason he ...
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124 views

Is Windows Firewall active on OpenVPN connection?

(This applies to "private" Internet browsing through a VPN such as privateinternetaccess.com) If I connect to a VPN using OpenVPN client on my Windows 7 box, will the Windows firewall be active ...
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52 views

Logitech telling us we have an unsecure network and trying to charge $99?

My boss is trying to set up a Logitech webcam on his computer in the office and he called Logitech support, and they were trying to fix it and could not so he let him on his computer he said he could ...
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310 views

Can we prevent vsmon.exe (ZoneAlarm True Vector service) from hijacking TCP connections

I just noticed that vsmon.exe from ZoneAlarm firewall started to act like proxy for TCP connections (I am guessing it's doing the same thing for UDP packets internally). I use TCPView.exe from ...
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166 views

How to access Ubuntu local web server from a different apartment

I have set up an Ubuntu Apache web server with a four years old laptop. And my web application needs to be used from a different apartment, from my ground floor shop. Actually, I'm an intermediate web ...
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0answers
51 views

Possible Firewall Issue

WHen I try to access the internet through IE with the follwing proxy details , I am able to access ineternet succcesfully Proxy : MyProxy , Port: 88 But when I try to access the same ...
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0answers
36 views

Security concerns with Open port

I am developer not an administrator. That's why i am here to get expert's views. My setup is of webform of 5 windows 2008 servers behind Cisco ASA5505 firewall. I have written a small application ...
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0answers
190 views

I need some help proof reading my IPtables rules, my rules seem to work but I cannot be sure

Like the title says, I need some help proof reading my iptable rules, my rules seem to work but I cannot be sure. My set up is as follows: ISP ---> cable modem ---> Ethernet switch ---> ...
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258 views

OpenVPN works locally but not publically

Main Problem I can get OpenVPN to work when I use all local IP addresses but when I try to connect the client to a public address, it doesn't work. I'm following this guide: ...
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0answers
230 views

Shared Folders - Network Resource not Available

We have five computers (example "COMP1", "COMP2", etc.) at a remote site hooked-up to our domain. Each computer has a shared folder which gives full permissions to the local administrators group. To ...
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113 views

Change UDP port with iptables for VPN clients

What I want to do is say that for all UDP connections on interface ppp0 that have a destination port of 53, change that destination port to 1053. I am attempting to change the destination port of UDP ...
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182 views

Route traffic from one port to another machine in LAN

I would like to remote desktop to my work computer using hamachi. The hamachi connection works fine and i can use remote desktop but when my session is over hamachi disconects. I was thinking i ...
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0answers
129 views

How to unblock jabber on TI ADSL router with iptables

I have old but reliable Texas Instruments ADSL router. Board AR7RD; BUILD=061005; VERSION=3.7.1 If that matters... One thing that bothers me is that it somehow blocking my jabber (Pidgin ...
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0answers
359 views

How do you allow a specific IP Address to bypass your firewall. OS X

Well, my young cousin really likes minecraft. He comes over and spends time with me every now and then. When he does, we usually play minecraft, as it is one of the few games I actually like. Anyway, ...
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45 views

GUI tool for presenting connectivity status on a firewalled network with port blocks etc

The Israeli railway company has recently started a project of wireless LAN availability on its lines. Now, it's all in the flakey stages, sometimes things are up and sometimes they aren't; sometimes ...
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0answers
115 views

Block access to certain applications on certain internet connections

I have two internet connections, a LAN and a 3G modem on a Windows 7 machine. The LAN is connected to a Edimax router which is conneted to the ISP (with their own modem). Now, the Edimax router is ...
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0answers
225 views

Route problems with OpenVPN through a local Astaro firewall

I am trying to connect to a OpenVPN server on my Windows 7 desktop though my Astaro (ASG) Firewall. I got it setup and can connect just fine but I can't surf the web. I can ping websites like ...
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0answers
92 views

Blocking/traffic-shaping of an Elastic-IP URL

I'm interested in block or traffic-shaping connections made from my system to a host given by a URL. The problem is that the URL is re-mapped to a different IP address every several minutes (I ...
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0answers
183 views

Public - Private networks behind NAT Modem using OpenVPM – Shorewall

I have been asked to configure a firewall between the public and private parts of a network for a small UK charity. The only imposed requirements is that the firewall must allow access using VPN into ...
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165 views

Cannot properly use Gigabit LAN, firewall & switch, home network

I have a netgear prosafe 8 port vpn gigabit firewall and a netgear prosafe gigbit 8 port switch on my home LAN plus a UBEE cable modem. The connectivity of these devices are as follows... ...
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242 views

Windows Firewall with Advanced Security Block certain IP's on port 21

Windows by default blocks all IP's. I think I made it so that now my advanced firewall is allowing all IP's, but when I add a block rule it doesn't actually block the certain IP. I am using FileZilla ...
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788 views

Lync client 2010 and VPN firewall rule

I am running Lync client 2010 (4.0.7577.4598) on Windows 7 x64. The server for this is a corporate one, and in parallel I use a Juniper VPN to access the corporate intranet and other resources. ...
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172 views

Soluto installation fails with “Check your internet connection or firewall settings”

A few days ago, I wanted to install Soluto. The installation failed with this error message: Check your internet connection or firewall settings! Because everything was fine with my connection, ...