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

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Can I use win7-virtualbox as a router to VPN?

I have a linux mint machine. Inside the linux mint I've installed a win7 that is connected to my workplace vpn. The goal is to route VPN traffic from the host (linux) via the win7-VM. To the ...
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2answers
58 views

how to verify firewall rule for a particular service?

How could i check which firewall rules are used by a particular service and whether port is blocked to restrict access by external users? i.e netstat -tulnp | grep 123 udp 0 0 ...
2
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1answer
333 views

Cisco ASA 5505 not allowing OPC Traffic

I am integrating a Cisco ASA 5505 firewall in the following manner: Inside IP range (VLAN-AWTP): 192.168.127.xxx (industrial devices) DMZ IP range (VLAN-OPC): 192.168.77.xxx (only has OPC Server PC ...
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55 views

Blocking connection to internet only when certain program is run

I wonder if that is possible. For example: I want to block "Steam"s connection to the internet when I run a certain game. Is that possible or do I have to keep disabling and enabling the rule?
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2k views

Almost all sites won't load in Windows 10

Recently my Internet has been acting badly. Basically, I can only load certain sites. Some sites work great, and others don’t load at all. I think this is because some firewall or antivirus thing. ...
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37 views

transfer ARP on linux iptables with diffrent subnet

Firewall(linux) - with 2 interfaces: internal, external ; also used as GW Internal: 192.168.254.1/16 External: 10.0.254.1/16 external_client(linux) IP: 10.0.1.1/16 internal_client(linux) IP: ...
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28 views

How is Windows ICS service different from Linux-based NAT & routing when I want to hide my LAN structure from ISP?

Background I've been using a WIFI-router as my home gateway perfectly until my ISP appears to restrain the number of connected devices. And currently there is not any realistic upgrade plan from the ...
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39 views

How to forward port-specific IPv6 traffic to the internal network?

I have IPV6 connectivity provided by Hurricane Electric on my home network. Now I want to make my internal IPv6 hosts available to the outside world, but only specific ports. I have created the ...
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1answer
71 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 ...
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1answer
55 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 ...
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149 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 ...
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277 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 ...
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404 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
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0answers
239 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 ...
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1answer
72 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 ...
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0answers
43 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 ...
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1answer
51 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.
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50 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 ...
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0answers
122 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 ...
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0answers
28 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 ...
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0answers
105 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 ...
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0answers
62 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) ...
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137 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 ...
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3answers
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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1answer
88 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 ...
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1answer
114 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 ...
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0answers
70 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 ...
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25 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
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0answers
129 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 ...
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0answers
69 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 ...
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2answers
214 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): ...
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25 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 ...
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1answer
31 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 ...
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1answer
140 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 ...
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1answer
225 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 ...
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0answers
399 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 ...
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0answers
69 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 ...
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0answers
75 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 ...
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0answers
26 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
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1answer
634 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
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1answer
185 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 ...
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0answers
33 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). ...
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0answers
68 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
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1answer
209 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 ...
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0answers
32 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 - ...
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1answer
108 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 ...
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2answers
172 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 ...
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0answers
84 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 ...
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0answers
59 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 ...
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1answer
71 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 ...