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

learn more… | top users | synonyms

0
votes
0answers
7 views

How to set up a clear SuSE-Firewall?

Question is very simple, im doing some rules in a machine with the firewall disabled, but when i run rcSuSE-firewall2 start a lot of rules and policies are applyed by default: iptables -L Chain ...
-2
votes
0answers
15 views

Windows 10 Firewall keeps blocking Windows Update

I have configured the Windows 10 firewall so as to block outbound traffic to the internet with very few exceptions (core network, Firefox, Outlook) and allow all standard local network traffic (files, ...
1
vote
1answer
37 views

iptables is treating traffic from different hosts differently in spite of rules

Something spooky is happening here and I don't know how to fix it. Summary: traffic that appears identical to tcpdump is being treated by iptables differently. Details below. Test setup: device ...
1
vote
1answer
23 views

Is my wireless router throttling?

I've got a cable modem (wan) --> dell laptop (lan with pfsense installed) --> wireless router (opt1, bridged). When pinging from the laptop I am getting: PING 8.8.8.8 (8.8.8.8): 56 data bytes 64 ...
0
votes
0answers
16 views

Windows 10 / Mobile Hotspot / Firewall

I'd like to share my cellular connection from my windows 10 notebook via mobile hotspot, but my firewall (AVG) blocks all connections. When I deactivate AVG everything works fine. Is there a rule I ...
0
votes
0answers
14 views

Is it possible to apply parts of AdBlock+'s EasyList Adblocking list to the hosts file in any way?

I use AdBlock+ for Firefox, but I was wondering if it would be possible to apply AdBlock+'s EasyList filter to the Windows Host file. I doubt that that is possible because of the rules in the EasyList ...
0
votes
0answers
10 views

Syslog Configuration on logstash (ELK) pfSense 2.2.2

I was wondering if someone could help me out or guide me. So I got everything up and running my only issue that when im trying to filter my syslog dashboard (the system logs of pfSense) it shows ...
2
votes
0answers
30 views

How to block a port from all traffic on all interfaces in Mac OS X 10.10.5 (Yosemite)

I need to block port 27017 to do some testing but I can’t seem to figure out how to do it in Mac OS X 10.10.5 (Yosemite). I know that sometime ago they moved from iptables to pf tables, but the ...
1
vote
1answer
37 views

Establishing an SSH connection between machines behind firewalls

I have two machines, A and C, each of which is behind a firewall so they can’t accept incoming SSH requests on port 22. I have a third machine, B, outside both firewalls and I wanted to SSH from A to ...
1
vote
0answers
20 views

Unable to control Windows Firewall

I have no other firewall software installed. Had Panda but removed it when I saw this happen. In the Windows Firewall applet, I'm unable to do anything. Unable to turn on/off. The "Use recommended ...
-2
votes
0answers
17 views

How other applications that needs internet works, even my upnp disabled?

How other applications, like google chrome, or some games, that needs internet works, even my upnp disabled? And how to make my server-client based chat application make available to public networks ...
-2
votes
1answer
33 views

I accidentally opened a localhost port?

I had accidentally opened a port via firewall which had a WEBSITE(IIS EXPRESS) localhost port number. So could my desktop be hacked by opening a port? And also i had deleted it after a few minutes.
0
votes
0answers
14 views

Active Directory VPS Server (Security)

I have a VPS configured as a domain controller on the internet as part of a project. I am concerned about security as Windows Built-in Firewall and security has a reputation for being about as easy to ...
0
votes
0answers
29 views

How to install a network hub to monitor Internet usage bandwidth for each device

bought a networking hub 100base tx so i would like to monitor internet bandwidth consumption for each IP,who is eating my bandwidth. scenario is ISP----Router-----switches----- computers. where to ...
0
votes
0answers
22 views

no internet with some programs, it's not the firewall

the last few days some programs cannot get info from internet, that is:i wrote the programs with livecode and created a simple connectiontest program that post to a php file on a website and tells me ...
0
votes
0answers
19 views

How to best configure a home network with one dedicated firewall PC, and two routers (one linked to the other to increase range)?

I have a moderately complex home network, but I'm not getting the data I want from my firewall, which sends nightly reports of activity. My entry point to my network is an Untangled server with 2 ...
0
votes
0answers
10 views

IPSec VPN - can't access / ping remote computers / NAS drive

I'm connected with the VPN set up on a FVS338 firewall. I connect everytime without any problem, but here's the thing. I can't ping any LAN machines beneath the VPN. However, I can access (and ping) ...
1
vote
0answers
18 views

Can I track the CPU load that IPTABLES firewall is causing?

Since IPTABLES is a software based firewall, I am wondering if it is possible to log the exact load it is causing, cpu cycles, etc. On a small system I am sure it is trivial. But how about with ...
0
votes
1answer
31 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 ...
0
votes
1answer
14 views

Is a firewall saying “DNS server settings changed” when connecting to public WiFi cause for concern?

What does it mean when a firewall says that a new WiFI network connection has caused the DNS server settings to change? What should a regular end-user be aware of, and are there circumstances under ...
0
votes
1answer
19 views

Can't Access Port number 80 and 443 after adding Iptables rules

In my CentOS 6 i added a IPtables rules like DROP all the policy like iptables -P INPUT DROP Then I allow Port NO 22,80,443 with this command, iptables -A INPUT -i eth0 -p tcp --dport 80 -j ...
0
votes
0answers
25 views

SSH through firewall

I am trying to connect to a linux server (via PuTTy) through a firewall. I ran netstat on the Win7 client and found a handful of suitable (listening) TCP/UDP ports. I configured the server to use ...
0
votes
0answers
7 views

Enforce EUI-64 configuration

I'd like to ask if there is any possibility to enforce EUI-64 address in my network. I'm not able to use port ACL and IPv6 Source Guard because of old IOS system on my switches and the upgrade ...
2
votes
0answers
35 views

McAfee firewall blocks localhost in subprocess only

This is a programming-related question but seemed more appropriate for SuperUser than StackOverflow. I have installed McAfee (a trial version of LiveSafe -- Internet Security) on my PC. I am running ...
0
votes
0answers
14 views

How to block all traffic except one in windows

I am trying to block all outbound traffic except one. I have referred to this post but it does not seem to help much How to block all traffic but one IP in Windows Firewall? What i am trying ...
0
votes
1answer
25 views

Why doesn't my ubuntu host doesn't allow RMI calls from JMeter?

i'm running a jmeter client on my ubuntu maschine. I try to start remote tests via RMI. The start works fine, but i don't get the results back. Start JMeter Server (rhel 6.5): ...
0
votes
0answers
8 views

HPQC 12.20 Community Edition - How to enable Network access on Windows?

How to enable Network access on Windows ? The HPQC server is just accessable on the same computer at http: // localhost : 8080 / qcbin (without spaces) and at http://192.168.178.2:8080/qcbin With ...
-2
votes
0answers
39 views

monitoring each ip usage in lan and who's is taking all my bandwidth

iam facing a lot of bandwidth issue in my office premises want to check who is using my total bandwidth in lan and make them not to download any heavy file is there firewall or method so that it can ...
0
votes
1answer
19 views

How to find out what system processes an executable/app uses OS X?

I'm trying to find a way to find out what other processes an executable uses so i can block/unblock the app and those processes on my firewall. For example, Google Drive app uses Discoveryd to ...
-1
votes
1answer
24 views

Stopping multiple IPs from getting logged on iptables log

I want to log all dropped packets with my iptables (by default all except ssh), but I want to exclude the local network IPs as well as 0.0.0.0, 255.255.255.255 and 192.168.0.255 from appearing in the ...
0
votes
1answer
29 views

PF firewall: How to disable all filtering on loopback interface EXCEPT specific port forwarding rules?

PF question on OS X Yosemite 10.10.4: I know that set skip on lo0 disables all filtering (nat and redirects) on lo0, but what if I need to save the httpd port forwarding rules on this interface while ...
0
votes
0answers
73 views

Allow trusted IP and Block others in Windows Server 2008 R2

For protection of a Web Server, I need to allow some trusted IP and block others. The solution I have tried: Create 2 inbound rules : Allow some IP and RDP IP Block All this resulted on ...
0
votes
0answers
13 views

how to configure naxsi to accept json format in rest apis?

or example one of my APIs is: Post request: /api/v0/login body: { "username":"xxx@ggg.com", "password":"eeeee" } I want to secure this API with naxsi (Nginx Anti XSS & SQL Injection), I could ...
0
votes
0answers
20 views

Can I reference multiple interfaces in OS X pf with wildcards?

I use /etc/pf.conf and pfctl from within a program to programmatically block and unblock network interfaces. When I for example want to unblock all tunnel interfaces I want to unblock all interfaces ...
0
votes
0answers
11 views

windows firewall allowing iis to serve default site to local machines despite block rules

Running Windows 7; trying to use WFC and Windows Firewall to block inbound IIS connections except those originating from my database server. No matter what I block or unblock, the local network ...
0
votes
1answer
72 views

Windows 7 Batch file to turn off firewall and restart computer

I'm trying to create a batch file to do as the title states. Currently, I have: netsh advfirewall set allprofiles state off sleep 30 C:\windows\system32\shutdown -r -t 00 This batch file restarts ...
0
votes
1answer
58 views

iptables - allow access to a web server from the outside

I am trying to allow access to a web server from the outside and I am getting nowhere. Granted I do not have any experience in iptables, but I have dabbled in Cisco ACL and NAT. I am not sure what I ...
1
vote
0answers
15 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
45 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, ...
0
votes
1answer
61 views

Allow access across subnets not working

I have two routers. One is running DD-WRT and the other is running Tomato. The DD-WRT router is the main router the WAN connection goes through. The Tomato router is for my PIA VPN. DD-WRT is a ...
0
votes
0answers
13 views

Getting Error 800 Trying to Connect to VPN connection set up on Zyzel USG110

We're using Zyxel USG110 Firewall. I've setup VPN connection on the firewall using the following settings: VPN Gateway * L2TP_GW (for client l2tp connections) - My Address => Interface: wan1 - ...
1
vote
1answer
37 views

Firewall filter rules and traceroute

I'm trying to learn how it all goes in networking. I have a working network done by some specialists and I bought new Mikrotik router and done a new LAN in which I want to do some trial&error. So ...
0
votes
2answers
34 views

How forward packets from network interface to another

My problem is forward packets from eth2 that is my LAN to eth1 that has access to internet, to allow eth2 to access to internet, here my configuration: auto eth1 iface eth1 inet static address ...
1
vote
0answers
44 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 ...
0
votes
0answers
31 views

NETGEAR router-firewall setup

I have a NETGEAR WNDR3400 and it is connected to a NETGEAR FSV338. Do I need both the router and firewall to protect my network, or does the router act as a firewall too? In addition, the firewall and ...
-1
votes
1answer
46 views

What is the name of a some hardware-device feature which displays user's internet connections?

Problem: I'm trying to find a small hardware device (eg. a modem/router? firewall?) that can tell me who (private LAN IP addresses) is connecting to what other (public) IP's and their up/down ...
0
votes
0answers
18 views

McAffee Firewall won't allow access to my NAS

I'm using McAfee All Access-Total protection (latest version). I have a NAS available through a switch on my home network. When I start up my computer I cannot get to the NAS. If I turn off McAffee ...
0
votes
1answer
41 views

How to config windows firewall so VM Host-only can ping Windows 7

I start a VM (Linux) in host-only network connection (manual IP : 192.168.8.123) under Windows 7. After turn off the VM firewall, I can ping VM from Windows. However, when I try to ping from VM, it ...
0
votes
1answer
31 views

Force users pass by firewall for a network with 2 gateways, one over firewall and other direct connection

I have a network with 2 default gateways (i.e. A, B). A is behind a firewall, while B is directly connected. I set DHCP for all domain computers to have Default Gateway for A. The firewall is a proxy ...
1
vote
1answer
451 views

How can I open a port in my Mac OS X yosemite(firewall)?

I have a java-based server(jar file) and it is running on port 8080. It is running well on my localhost, but I can't access it through other networks I think it's a firewall issue. so, First, I ...