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

learn more… | top users | synonyms

4
votes
0answers
118 views

How to configure Windows Firewall to allow all ports in use by IIS Express

My understanding of this technet article, per the page that brought me there*, is that I can configure the Windows Firewall to allow all inbound traffic on any port being used by a specified ...
3
votes
0answers
564 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 ...
2
votes
0answers
88 views

Can I set up Windows 7 VPN so that only sites blocked in China are routed through VPN?

I'm in China behind the Great Firewall using a VPN service provided by a friend so didn't get blocked in the VPN crackdown in January 2015. Since VPN can slow down traffic a lot I'd like to only ...
2
votes
0answers
41 views

Configure firewalld to distinguish home and public ethernet connection

I connect my notebook via ethernet at home and outside. I want to open some ports for services like samba only at home and not somewhere else. How can i let firewalld automatically detect where i am, ...
2
votes
0answers
43 views

IP adress for debian.org and debian.net

we are enforcing a strict firewall policy at my firm and are whitelisting adresses on the internet. My issue is this : I need to get a list of IPs (or at least a subnet) for standard debian update ...
2
votes
0answers
76 views

Why is the Windows firewall not blocking outbound ports?

I use the following rule to block all outbound communications to remote 80 ports. I want to use this approach to prevent web requests initiated from this computer. But it seems I still can access web ...
2
votes
0answers
67 views

How to make my local tomcat server accessible to www?

So I have my "Hello World" Java project, using Intellij Idea, tomcat 7 is running. OS Windows 7. When I go to http://localhost:8080/ from my PC, it works fine. Now, I want the world to see my ...
2
votes
0answers
28 views

Change the insecure default to restricting scope to LAN, for adding exceptions to the windows 7 firewall?

My network is generally set to Home or Work, i'm not commenting here on Public. I understand that with Home or Work, the Private firewall profile is used. I have noticed that with the Windows 7 ...
2
votes
0answers
144 views

What might be causing specific IPv6 HTTPS servers to send an excessive number of RST packets?

Client browsers on my IPv6-enabled home network hang and time out when attempting to load https:// URLs from specific IPv6 sites, such as ones operated by CloudFlare. In those situations, the live log ...
2
votes
0answers
83 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 ...
2
votes
0answers
1k 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
votes
0answers
328 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 ...
2
votes
0answers
904 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
votes
0answers
1k 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 ...
2
votes
0answers
391 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
votes
0answers
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 ...
2
votes
0answers
812 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 ...
1
vote
0answers
13 views

NAT configuration for HTTP server

There is a router (192.168.1.1) having static public IP(hypothetically- 8.8.8.8). This router is programmed to forward all incoming port 80 (TCP/UDP) connections to a particular IP (192.168.1.105). ...
1
vote
0answers
38 views

What is changing my Windows Firewall rules?

I have pretty much explicitly blocked everything in my Windows 8.1 outgoing Windows firewall rules, but the following rules are always enabled again after I restart: ICMPv4-Out, ICMPv6-Out, ...
1
vote
0answers
38 views

Ports open in router settings, Firewall disabled, no DMZ's, port's still appear as closed, why?

So I'm currently attempting to host an IIS and opened the nessesary ports, I can connect to it via localhost and on other machines in the network, however when attempting to connect to it over WAN I ...
1
vote
0answers
17 views

Mikrotik: One firewall rule for multiple chains?

I created multiple firewall rules for input chain as described in an article and now it seems that I need to create the same set of rules for forward chain. Could I make a rule for multiple chains?
1
vote
0answers
41 views

502 bad gateway after putting up firewall nginx

My server was working, then I added a firewall for a bunch of ports! And now I get the error: 502 Bad Gateway nginx/1.4.6 (Ubuntu) Nginx server { listen 80; server_name 45.79.80.140; ...
1
vote
0answers
22 views

is it possible to use certificates on windows firewall?

Scenario: I have a situation where I work from home. I need to connect to a database server on the internet. The server has whitelist rules for IP addresses on firewall. My IP address changes ...
1
vote
0answers
22 views

Iptables: dropping/rejecting new and invalid connections

I'm very new to iptables and my goal is the block NEW and INVALID connections on the INCOMING chain and log any attempts for a NEW connection. I'm also letting any and all traffic out on the OUTGOING ...
1
vote
0answers
41 views

Why do my nat iptables rules not work with marked packets?

System: debian squeeze, Linux server 2.6.32-5-amd64 #1 SMP Tue May 13 16:34:35 UTC 2014 x86_64 GNU/Linux, iptables v1.4.8 lsmod | grep iptable iptable_security 2176 0 iptable_mangle ...
1
vote
0answers
17 views

BSD Packet Filter Redirect Internal traffic

I'm using OSX Yosemite with Packet Filter (BSD). Is there a way to redirect internal originating traffic (let's say from en1) to lo0 on a specific port for specific destinations? rdr from what I ...
1
vote
0answers
42 views

PF rule using return-rst on Mac OS X does not reply with TCP reset

I'm trying to add a simple PF rule: block return-rst out proto tcp from any to any port 33128 to filter all outgoing traffic to TCP port 33128, and I'd like it to respond with a reset. However, ...
1
vote
0answers
21 views

Sonciwall SNMP configuration

I'm playing with some old Sonciwall and i like to configure with SNMP. All doc. and google iv done are the same procedure. System > Administration > SNMP Enabled ( community string etc. ). 2-step: ...
1
vote
0answers
48 views

Can Windows Firewall be hole punched?

If you send a packet to someone's router, it will most likely be rejected by either the router firewall or the router's NAT (if no port is forwarded). However, for a short time, your router will ...
1
vote
0answers
145 views

Connect to SQL Server. Error 26 : the type initializer threw an exception: error locating server instance specified

I have a SQL Server 2014 Express installation. It is configured for Remote connections TCP is activated mixed mode Authentications are allowed and the server firewall is deactivated My program ...
1
vote
0answers
61 views

How to configure iptables to set public IP for outgoing traffic from private IP

I have multiple public IPs at home: 1.1.1.1 (main IP) 2.2.2.2 (additional IP) In my local network, I have two computers, let's say 192.168.1.1 (PC1) 192.168.1.2 (PC2) Infront of the computers I ...
1
vote
0answers
125 views

How to use new keyword dummynet-anchor in pf.conf of Mac OS X

Mac OS X introduced a new keyword “dummynet-anchor” in pf.conf file, which not used in FreeBSD and OpenBSD. The ipfw was removed in Mac OS X 10.10, How to use “dummynet-anchor”? UPDATE: What portion ...
1
vote
0answers
35 views

On Comodo Internet Security to restrict an application

I've installed Comodo Internet Security a couple of days ago on Win 7 64bit Home Premium. One of the features is Defense+ and Auto-sandbox with specified level of restriction. Recently I have ...
1
vote
0answers
172 views

Connect to nodejs through public ip address

I have a basic node express app running on port 3000. I can access it via 127.0.0.1:3000, my private ip is 192.168.1.2 I've set up portforwarding in my d-link router as followed: Private IP ...
1
vote
0answers
52 views

Restrict Hamachi Gateway Scope / Ports

A client wants to make a couple of websites intranet-only, but still allow access at about 30 outside locations. Hamachi gateway would work nicely for this, but I do not want those computers to have ...
1
vote
0answers
218 views

Blocking Incoming IP With Win 7 Firewall

This question was asked before, but the answer is not working for me and the rules of this forum say do not respond to answers, so I am asking again. I went through the following process on the Win 7 ...
1
vote
0answers
28 views

port forwarding in windows

I need to forward all incoming traffic on specific port to another port on the same device "locally not proxy", and all outgoing port traffic. in Linux it is possible using iptables I used NAT chains ...
1
vote
0answers
42 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 ...
1
vote
0answers
184 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" ...
1
vote
0answers
445 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 ...
1
vote
0answers
280 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 ...
1
vote
0answers
71 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 ...
1
vote
0answers
231 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 ...
1
vote
0answers
592 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 ...
1
vote
0answers
282 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 ...
1
vote
0answers
499 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?
1
vote
0answers
140 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 ...
1
vote
0answers
403 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 ...
1
vote
0answers
87 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 ...
1
vote
0answers
401 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 ...