Software that controls what connections can be made to and from a network.

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Firewall open ports for vSphere

I need to open ports on a firewall, so that a client could access his VM console through vCenter server's Web Client. I had a look at this page about port description, but I am a little confused. I ...
4
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4answers
18k views

Windows 7 is blocking ports

I am trying to open port 80 and 3690 for HTTP and svnserve respectively (inbound for both). I have Windows Firewall off, and have tried temporarily disabling Mcafee VirusScan Enterprise, to no avail. ...
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0answers
9 views

timeout on connecting to vsftpd on Ubuntu 14.04

I have a VPS running Ubuntu 14.04. I'm trying to run a FTP server on it, using VSFTPD. I think the server is running as it should, I can connect to it locally: root@my-server:~# ftp <IP> ...
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8answers
35k views

Changing network type from Unidentified network to Private network on an OpenVPN connection

Is it possible to change the connection type in Windows 7? I have a OpenVPN connection which is identified as "unidentified network" and I do not want to apply certain rules to all unidentified ...
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2answers
13k views

How to open a specific port in Moutain Lion Firewall

I cant seem to find how to open a specific port in the ML firewall? I know you can give applications permisiion, but thats no good to me. Is there a way I can specify a specific port?
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2answers
1k views

How to use iptables to allow traffic only through ONE SPECIFIC VPN

I'm trying to allow all traffic from my Banana PI running Lubuntu to only go to my LAN or otherwise through an VPN Server. I'm following this guide: ...
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0answers
23 views

Detach my Modem from my Router. Adding a Firewall-Switch. Adding a second router

I have a MODEM/ROUTER from Comcast. I want to get rid of it. My purchase list includes... ARRIS SURFboard SB6190 DOCSIS 3.0 Cable Modem JUNIPER SSG-5 Firewall/Switch I already have a D-Link ...
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0answers
46 views

Something is blocking certain IP addresses on Windows

I'm using Windows 7 and something is blocking one specific website address. I've checked Windows firewall rules hosts file entries Policy group rules I can ping that site and it responds. I can ...
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2answers
9k views

Import Export specific Windows Firewall Rule

How do I Export and Import specific Window Firewall rule (both Inbound and Outbound) ? I can do Import / Export policy but it will use ALL rules not specific rule. Same with Export List, it can ...
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4answers
1k views

How to whitelist an IPv6 address in VPC security groups on AWS?

I cannot enter an IPv6 address in the inbound rules in AWS VPC security group settings. It says The source must be a valid CIDR (e.g. 0.0.0.0/0) or the ID of another security group and It wont let ...
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0answers
15 views

Commonly open ports in restricted wifi networks

Which ports except for 80 and 443 are commonly not blocked in open wifi networks? I want to set up a OpenVPN Server on such a port to get around restricted networks. I have experienced the issue that ...
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2answers
11k views

Block websites to a certain IP range with mikrotik router

I have a MikroTik Router 951Ui-2HnD that connects my computers with the ISP. I want to block Youtube and Facebook but only in a few computers. I created a Layer7 Protocol with: Name : Denied Websites ...
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1answer
46 views

Why does “Windows Games Explorer” attempt to access the internet whenever I launch a game?

I'm running Windows 7 SP1 Ultimate (64-bit) and the OS is making some undesirable and unidentified calls to the internet. Whenever I launch a game (in this case Unreal Tournament) I notice Windows ...
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vote
1answer
35 views

Windows firewall doesn't work

I've added a rule to Windows firewall to block all incoming connections on port 80: But it has no effect - CurrPorts shows apache listening on port 80 and also nc (ncat on Win) shows port is still ...
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0answers
27 views

Mac OS X firewall settings

I'm having some issues with setting up firewall on Mac OS X El Capitan version 10.11.4. I have number of network interfaces including en3, which is my main ethernet connection and and gif0 which is ...
1
vote
1answer
3k views

UDP blocked by Windows XP Firewall when sending to local machine

I work for a software development company but the issue doesn't seem to be programming-related. Here is my setup: Windows XP Professional with Service Pack 3, all updated Program that sends UDP ...
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0answers
27 views

Two Sites, One Firewall, Two wireless bridge, One ADSL modem,Internet Sharing

I have two physically separate sites, Site A and Site B. Site A - connected two Side B via a Wireless Bridge Site A - Transparent Wireless bridge terminates into the switch of Site A Site A - Has a ...
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1answer
906 views

what firewall linux distro applicance could track internet usage per device in my home?

Anyone know of a community edition/open source/free firewall/gateway software product that I could install onto an old PC to act as my firewall/gateway/proxy etc, BUT for which it has the power to ...
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0answers
6k views

How to unblock websites that are blocked by Cyberoam?

I'm in a crazy situation as my new company blocked many sites like Gmail and Facebook by using Cyberoam. I tried https://gmail.com and then added an exception but still no luck. The url of Cyberoam is ...
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1answer
29 views

how to set up a deny rule (e.g. Apache) to block a IP if it connects more than e.g. 5 times per second?

if I want to block any IPs that connects the server more than 5 times per second, how to do that? I am currently using CloudFlare firewall to manually block such IPs but it would be nice to make it ...
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0answers
12 views

Firewall Sonicwall NSA 250M VPN

I use a Firewall soniwall NSA250M on which I have set up VPN access. From my home I can connect without concern but once at the office and connected to the internet I arrive to open the VPN tunnel. ...
2
votes
1answer
3k views

How to allow windows store apps and the windows strore to pass the windows firewall

I use the windows 8 firewall and I wanted it more secure, so I block incoming and outgoing connection. Unfortunately I realized that the windows store did not work as well and all application from the ...
3
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1answer
3k views

Windows 2008 Firewall - How do I restrict HTTP inbound to specific IP?

My goal is to restrict all HTTP inbound requests to a specific IP addresses. I thought it would be a simple process - but I am not getting the result desired I have modified a predefined rule called ...
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0answers
20 views

Opening port on Comcast modem/router connected to Netgear Prosafe firewall

I've been unsuccessful in opening ports on my static IP address. Add advice on my setup would be appreciated. Static IP -> Comcast Modem -> Firewall -> Group Computers (Windows Firewall) Comcast ...
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0answers
23 views

Setting up firewall while daisy-chaining two routers via ethernet

Due to circumstances, I will shortly have two routers (replacement coming in the post for old broken one, but I need non-mobile-phone internet access, so have to buy another)... This got me thinking: ...
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1answer
29 views

Can you install custom UTM software on pre-existing firewalls/UTMs?

I have a Netgear ProSecure UTM50 (the Netgear ProSecure line is end of life.) Is it possible to install something such as Sophos UTM/Untangle/etc. on it?
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1answer
11k views

How to setup firewall to allow internet connection sharing via Wifi USB stick?

I have a Windows8 computer linked to the internet via an ethernet cable ("Ethernet" network connection). I have attached to it a DLink Wifi USB stick, and I'm trying to share the main PC's internet ...
2
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2answers
47 views

How is the Firewall taking priority over other applications when the PC first boots?

How is the Firewall taking priority over other applications when the PC first boots? How is the priority given,is it through a kernel driver? I'm using Comodo Firewall and I see that the Spotify app ...
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0answers
32 views

Inbound and outbound firewall rules

I am in the middle of writing a Powershell script to configure DMZ servers on Windows Firewall for 2012 R2. Looking at some older scripts I have written I seem to have added a lot of inbound firewall ...
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0answers
46 views

iptables should block ssh, but port is still open

I am trying to get the port knocking service working on my raspberry pi. I have edited my iptables rules to block incoming traffic, but I can still ssh into the pi from my macbook. I should NOT be ...
0
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1answer
20 views

SSH remote problems - ongoing issue: Besides ssh not running on the Linux host or firewall running on that host, what other issues could it be?

Regarding the firewall: Linux Mint uses UFW by default. I disabled it with sudo ufw disable. Regarding the SSH Server service not running: I started it after I got a "Connection refused", leading ...
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1answer
35 views

Where is my firewall?

Using Linux Mint 17 and logged in as root... When I enter the command more /etc/sysconfig/iptables I get the error /etc/sysconfig/iptables: no such file or directory When I enter the command ...
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1answer
3k views

Adding many IP addresses to Windows Firewall using CLI fails partially

I have a PowerShell script which adds IP addresses to Windows Firewall using the "netsh advfirewall" command. (As described in this question: How to append netsh firewall rules, not just replace). ...
3
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2answers
5k views

How to disable SuSEfirewall2?

How can I disable SuSEfirewall2 from the shell (without yast)? We use OpenSuSE 12.3 I tried it: workdevel123:~ # systemctl disable SuSEfirewall2.service But I think this is not the solution: ...
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0answers
15 views

Server 2012 r2 — Opening firewall on remote Server Core machine for MMC (Comp. management) access

MCSA student here. I'm having some difficulty with this one. Same subnet and workgroup. Server 1 is a physical 2012 R2 server. Server 2 is a Server Core running as a VM on a workstation. As part of ...
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1answer
16 views

How might one version control Linux kernel firewall rules?

Our router is CentOS but we just use iptables to modify Linux kernel firewall rules. There is a script that's under version control which resets all the chains/rules, but in doing so drops all ...
3
votes
1answer
3k views

Allow access from outside network with dmz and iptables

I'm having a problem with my home network. So my setup is like this: In my Router (using Ubuntu desktop v11.04), I installed squid proxy as my transparent proxy. So I would like to use dyndns ...
0
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1answer
29 views

Has Kubuntu 15.10 been hacked?

Can someone tell me what this message means please? [system] Rejected send message, 10 matched rules; type="method_return", sender=":1.19" (uid=0 pid=1183 comm="/usr/sbin/dnsmasq --no-resolv ...
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0answers
27 views

Windows firewall slows down Virtual Box Host Only Network with named virtual hosts

I'm trying to port my development environment from linux to windows and experiencing problems with the windows firewall. I set up a VirtualBox machine with a host only network adapter and a static IP ...
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votes
1answer
48 views

I can ssh into server A from server B. But I cannot ssh into server B from server A

I have 2 servers in a data center. Server B is publicly accessible, as in, I can ssh into it. Server A is not. So to access Server A, I ssh into Server B. And then from there, I ssh into Server A. ...
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1answer
29 views

Windows 10 net usage [closed]

How to stop Windows 10 apps like money, news from accessing internet? I have Norton Security, so I blocked internet to these apps through Norton Firewall page. Then if I open these apps, itsays "no ...
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2answers
29 views

NetBIOS packet probing (port 137). Does it come from the router?

For quite a while my machine's firewall has been detecting strange packets, seemingly coming from my router. I cannot explain this behavior. I suspect that somehow an attacker from the outside is ...
24
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8answers
196k views

How to bypass web URL filtering service to access blocked websites (proxy)

I'm using network, where services such as Gmail or any other e-mails, Google Drive, Dropbox, all social networks are blocked. Basically my goal is to access simply GMail, but I couldn't find any way ...
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0answers
30 views

OpenVPN fails on different port

I have an OpenVPN setup with a linux server and windows client in mode-server with tap and over UDP. Everything works with port 1194. But I want to change to port 500. On my firewall I forward port ...
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0answers
27 views

FTP protocol Extremely slow on Windows 10. What could be causing this?

I am running 2 different devices (A pc and a laptop) both on the same network, both Windows 10. The laptop has standard transfering speeds on the FTP protocol. The PC has extremely slow transfer speed ...
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3answers
535 views

how do I block downloading data from a web domain, including by javascript code?

I am unhappy with google's javascript loading various BS from *.gstatic.com domain. I tried telling my firewall to block *.gstatic.com but apparently this only blocked loading webpages into the ...
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3answers
5k views

Blocking ads at the firewall level

Possible with the proper firewall rules or proxy setup? For example, when an ad loads, at the bottom you can usually see the domain it is loading itself from. I figure block the major ones in a proxy ...
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0answers
234 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; ...
0
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1answer
4k views

tracert command is not working but able to access the same site through browsers

tracert [site name] is not working in cmd prompt. But the same site has been working in all of my browsers . Please find below output of command. I need to use this command in my batch file but there ...
6
votes
1answer
1k views

How did Google get on my Mac?

I am running a MacBook Pro, and have never installed Chrome, Google Earth, or anything blatantly Google. Just installed Little Snitch (are there no good free firewalls for Mac?) and see that CURL is ...