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

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Windows 7 firewall rules doesn't work for FTP server

I have installed FTP server and set up an FTP site on Windows 7. I'm trying to connect to it via a Linux machine but the connection times out if the Home or work (private) networks firewall is on. ...
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1answer
2k views

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 ...
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19 views

how to specifically disable one software from connecting to internet?

so there is this presentation software called prezi. Its business model is this: If you have a free account, the presentation you created will be automatically upload to the cloud and be public, but ...
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1answer
32 views

Need clarification for Sonicwall “Public Server” wizard NAS policies

I used the SonicWall TZ105 "Public Server" wizard to add NAT policies for an internal (non-DMZ) server, but I do not understand the need for all the Custom policies that resulted: # Source ...
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91 views

Output port redirect with firewalld?

I'm used to iptables and I can't find a way to do this with firewalld. I need to redirect the output traffic of one port back inside in the same port, basically this: iptables -t nat -A OUTPUT -p tcp ...
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13 views

Managing multiple connections

Is it possible to setup an USB connected cellphone, from which mobile internet connection should be used every time the main ethernet proxy/firewall blocks the access to an URL? Mac environment here. ...
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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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17 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: ...
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64 views

Does Windows Firewall blocks UDP packets by default? [on hold]

Do I have to change Windows Firewall settings to enable UDP packets to go through on a specific port, or is UDP enabled by default on all ports? Edit: I am talking about incoming and outgoing ...
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1answer
12k 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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1answer
6k 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 ...
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1answer
48 views

RPC Connection Filtered with no Firewalls

I have a workstation (PC1) that cannot communicate with a domain controller over RPC (TCP/135). C:\PortQryV2> portqry.exe -n 192.168.1.1 -p tcp -o 135 Querying target system called: 192.168.1.1 ...
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1answer
54 views

How do I set a static IP address for a particular MAC address on a Cisco DPC3825 router

How do I set a static IP address for this router: http://www.cisco.com/web/consumer/support/modem_DPC3825.html so that a specific MAC address always gets the same IP address.
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7 views

Placing a FiOS Internet behind firewall

As a "little bit" paranoid person, I want to get rid of ActionTec wireless router. Currently any Verizon subscriber receives an ActionTec router (http://www.actiontec.com/41.html) These routers does ...
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2answers
3k views

Deny access to a port from localhost on OSX

I want to test a fallback strategy for my memcached driver (in case port is protected by firewall). How can I deny access to a specific port, on 127.0.0.1?
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1answer
2k 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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15 views

Set up port forwarding on Ubuntu with ufw

I want to route HTTP traffic from port 80 to port 8080. I added the following rule to /etc/ufw/before.rules -A PREROUTING -p tcp --dport 80 -j REDIRECT --to-port 8080 But it works only if direct ...
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2answers
2k views

Why my Port Forwarding rule is not working?

I'm a total noob about TCP/IP, and try to set a port forwarding rule. What I'm trying to do is this: I have multiple computers connected to my router (zyxel p-660hw-t1 v2), one of them is working ...
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36 views

iptables - How to mirror all ports from one IP to a single port on another IP

I would like to set up IP tables on my router to mirror traffic on all ports from 192.168.1.30 and send it to 192.168.1.10:5860 I think I need to combine the two commands below, but I'm at a loss. ...
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1answer
3k views

How can I configure my firewall to block Abobe Illustrator CC 2014 updates on Windows 7?

I have a very simple question. How can I configure my firewall to block Abobe Illustrator CC 2014 updates on Windows 7? I would like to do this properly. Thanks.
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11 views

Using Ipfw to limit all uploads on machine

I want to limit all upload traffic regardsless to be limited to a certain bandwidth. However I can't seem to get the rule right for Ipfw to do this. This is what i tried so far ipfw pipe 1 config ...
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21 views

How to allow google-analytics via iptables when internet is blocked for other traffic

How to allow google-analytics via iptables when internet is blocked for other traffic? I am running the following script on a wifi gateway. The WAN side of the gateway has ppp0 interface while LAN ...
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16 views

set Cisco SPI firewall to high, but allow SIP traffic?

How can I set the SPI firewall settings to "high" for the router, and yet allow SIP traffic? If I set the firewall to medium, the call will connect but I don't hear anything.
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1answer
9 views

logs are showing a succesful handshake but not connecting

I am using putty on windows to connect to an external ubuntu box: putty.exe mylogin@somewhere.com -pw mypassword The logs from pfsense are showing that it allowed this traffic to pass; however, I ...
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19 views

Why CSF blocking all traffic?

I've installed CSF firewall with Directadmin. when the firewall is running, it blocks all the incoming and outgoing connections. My iptables -L -n: Chain INPUT (policy DROP) target prot opt ...
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2answers
57 views

Windows 8: want to force a specific website be opened only by one of two internet lines avialable

I have a PC with win 8 with two different available wifi internet lines available. I want to to force a specific website be opened only by only one of internet connection and other websites be opened ...
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4answers
12k 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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32 views

What are some ways to disrupt BitTorrent activity in OpenWRT? [closed]

My Internet subscription belongs to me in name, so I need to make a best effort to prevent housemates from getting me flagged for illegal BitTorrent activity. I read that deep-packet inspection is a ...
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1answer
188 views

Securing a Nintendo Homepass Network

Some Nintendo 3DS users have been setting up wireless access points to trick their handheld console into treating the AP as an official "Nintendo Zone" AP. This has become known as a "Homepass" setup. ...
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1answer
2k views

nvmctray.dll and then daemonu.exe trying to access Internet on startup?

When I start-up my PC, Comodo Firewall 5.4.189822.1355 shows an alert that this is trying to access the Internet: Application: nvmctray.dll Remote: 127.0.0.1 - TCP Port: 2559 Shortly, afterwards, ...
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1answer
33 views

firewall-cmd in CentOS 7

I have a virtual linux server from STRATO. This machine runs CentOS 7 and when it comes to firewall settings I can read everywhere to use firewall-cmd. My system has no command available named like ...
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1answer
83 views

Why Windows Firewall does not block outgoing traffic?

I have noticed that Windows Firewall only blocks incoming traffic, for example, if I tried to listen on port 12345, it will display a warning dialog asking me if I want to allow it. However, if I ...
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44 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 ...
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20 views

csf (config server firewall) with nginx

I am looking into various web server solutions, and have come down to nginx and apache; I'm fairly ok with the technical differences and the pros/cons of each and if it was just down to that I would ...
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1answer
103 views

I suddenly can’t access my own web server within my LAN via the external WAN IP address

Suddenly today—without explanation—I cannot access my web server from my local network. My router is an Actiontec MI424WR MI424WR (GigE for Verizon FiOS). I have verified that no browser running on ...
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8 views

SonicWall firewall setting up RDP

I want to setup an RDP connection from the outside into my network I have a SonicWall NSA 220 what is the process involved? How secure is this option? are their other options available to this device ...
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16 views

How to log HTTPS traffic

I want to log https traffic of my network without loosing certificates trusts and without a proxy. I need to log "only" source ip, remote hostname and data traffic amount. Should be easy to get ...
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1answer
30 views

Blocking a specific application's access to a specific domain

I want to block a specific application's access to a domain. I would normally do this by adding the domain to my hosts file and having it redirect to localhost, but that will disable all applications' ...
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14 views

Exporting raw data of Checkpoint Firewall

I am looking to export a Checkpoint configuration to a Excel document (HTML or XML would also work). However, one requirement is to have the configuration showing the rule base with IPs ONLY (no ...
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0answers
40 views

Windows firewall rule order?

I'm trying to setup Windows Firewall to allow all traffic except a large list of IP ranges connecting to/from a specific application. For testing, I set up two rules: Allow all traffic (no ...
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19 views

how do I establish whether Glassfish is ready or not to accept JMS connections?

Working from a sample producer, which uses gtools, and by changing the connection parameters from localhost to the ip address for doge: def jms = new ...
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2answers
510 views

How to check if my firewall is actually protecting me?

I have set up a home firewall inside a virtual machine and I have configured it. How can I test if it is actually working and blocking dangerous connections coming from the internet? Are there some ...
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2answers
39 views

Testing a Firewall against outgoing UDP ports

I'm trying to test which outgoing ports are allowed through a firewall. At the moment I can do this for TCP by port scanning portquiz.net (which is a server with all TCP ports open) from inside ...
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3answers
4k views

Configure OSX Firewall to Allow SSH Server?

If I turn on my OSX firewall, ssh is disallowed. If I turn it off, ssh can connect just fine. These are the settings from the ssh host: while I don't know what I'm doing, I figured that giving ...
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0answers
22 views

rsyslog loses messages from firewall

I am trying to make rsyslog to log messages from iptables MASQUERADE. I have iptables LOG rule in nat table and PREROUTING chain before the MASQUERADE rules. The actual iptables rules: iptables -t ...
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1answer
21 views

Configure printer on WAN port

I have a network where router 1 is connected to Internet and has a network printer. Router 1 is a home router with default settings. A second router (router 2) is connected to router 1 on it's wan ...
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1answer
2k 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 ...
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2answers
50 views

Using Windows FTP client behind strict firewall

There is a software that depends on Windows ftp.exe to transfer files. Problem is, the computer that runs it is behind a very strict firewall, it does not work with Active FTP. Windows FTP only works ...
3
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1answer
529 views

Limiting network connections to specific sites when travelling / tethered (in windows)

I often find myself accessing the Internet while travelling via either (gasp) dial-up or via a very limited data plan on a cell phone. I'd like to make sure that my laptop does not use the network ...
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1answer
3k views

How to open a port for all users: NSA 2400

I'm trying to open up port 8332 for all users behind my firewall but can only find instructions for doing so for a single IP address. How do I make sure all my users can use a specific port? I've ...