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

learn more… | top users | synonyms

0
votes
1answer
33 views

Can I inherit iptable rules on/under windows?

Don't really want to purchase a VPS just to test some iptables stuff for my gameserver. Was curious if it's possible to load up debian on vmware player and install nginx, nodejs, mysql, etc (which is ...
0
votes
0answers
86 views

How to find allowing/blocking rule in Windows Firewall

I'd like to find which of the rules in a Windows Firewall is allowing or blocking some traffic. Specifically I'm trying to allow only certain IP ranges access to my server, but I've discovered that ...
1
vote
0answers
74 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 ...
2
votes
1answer
190 views

SSH Server Not Responding To Connection Request

I'm attempting to set up an SSH server on my local machine using OpenSSH. When I try to SSH from a remote host into my local SSH server, the SSH server doesn't respond and the request times out. I'm ...
0
votes
0answers
47 views

How To Apply Firewall Rules to VPN Traffic Leaving A Mac Server

A Macintosh client successfully connects to the VPN service running on my Yosemite Server. They get an IPv4 address and everything appears to be working normally. Is it possible to restrict the ...
1
vote
1answer
150 views

Is there a test/lab environment for SonicWALL firewalls?

Does anyone know if there is a test/lab environment for SonicWALL similar to that of Cisco’s Packet Tracer? I’m trying to find a way to simulate some configuration changes without tampering with my ...
0
votes
1answer
262 views

OSX Firewall keeps asking for approval

I'm in the midst of moving from one Mac laptop to another. I decided to start from scratch and install everything by hand to avoid the cruft I accumulated over the years. My old laptop is on Yosemite ...
0
votes
0answers
108 views

Which port do I need to open?

Currently we have a bit of a dodgy setup with our firewall, and are using an ngrok program to effectively punch a hole in out firewall to allow a program through (jvue). Unfortunately, this is the ...
0
votes
1answer
124 views

VMWare Workstation on Windows7, Firewall Issues

I have a Ubuntu image running under VMWare Workstation 11.1 on a Windows 7 pro machine. This VM image is there in part to serve some files over TFTP to a number of hosts on a network. The tftp server ...
1
vote
1answer
247 views

Draytek Vigor 2925 outgoing connection

I have a Draytek Vigor 2925 at home. I use it for my home network an especially the VLAN option is nice, because I need to have multiple "seperate" networks. I have a strange problem, I'm not able to ...
0
votes
0answers
64 views

CheckPoint Firewall Comand Line Login fwpolicy.exe

Is there a way to use command line to login to CheckPoint Smart Dashboard with the fwpolicy.exe tool ? How do I look at the help pages or manpages ?
5
votes
7answers
458 views

Is there a way to stop websites on an Apache localhost web development server from accessing the Internet?

I am using Uniserver for PHP web development and I am running windows 8.1 and have Kaspersky installed on system. Most of my work involves working on WordPress websites. Wordpress core files and ...
2
votes
2answers
165 views

Passing through a firewall with a “reverse” proxy

I have to do a workshop in a firewalled environment which is preventing me to show everything I would like and I'm looking for a workaround. I'll be demoing a software which runs on Windows. During ...
0
votes
0answers
114 views

UDP over Internet

I have a small problem: I want to program a simple Apllication that sends a small word (in this case: "Hello") to a server. This Server should display it via cout. This is just a project to learn how ...
0
votes
1answer
33 views

How to white list some ip and all the rest block while having already a DMZ?

I have a Linux machine running which has local ip: 192.168.1.2 connected to a router with public IP 8.8.8.8, now the router 8.8.8.8 has DMZ to 192.168.1.2 As a result spammers, hackers, crackers ...
1
vote
0answers
217 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 ...
2
votes
1answer
344 views

How can I make Ubuntu firewall rules ( ufw ) allow all traffic except…?

I'm new using Ubuntu and ufw command to set firewall rules. I have an apache service running and I'm able to deny the access to the root path using apache2.conf. I have another backend app running on ...
0
votes
1answer
120 views

Can't connect to SAMBA - ISP is blocking it

Security issues aside, I'd like to connect to a SAMBA share from home to a server (dedicated or vps, doesn't matter). The server works perfectly. The issue is on the client side. Let me more clear: ...
1
vote
1answer
1k views

Firewall Throughput vs. UTM Throughput

I want to buy a new rack-mountable router with wireless capabilities. I was checking out the (Netgear UTM-25S. This router has a "firewall throughput" of 980 Mbps but a "UTM throughput" of only 24 ...
3
votes
3answers
393 views

Vyatta Firewall structure and Interface Direction

I've just purchased a Ubiquity EdgeRouter ER-8, and I'm working on configuring the firewall. In particular I'm confused about the direction "Local" for the interface I've defined as the WAN, and how I ...
1
vote
2answers
201 views

Prevent traffic to mac address using ebtables

I have an interface on a remote host: 2: eth0: <BROADCAST,MULTICAST,UP,10000> mtu 1500 qdisc pfifo_fast qlen 1000 link/ether 00:05:68:02:68:dd brd ff:ff:ff:ff:ff:ff inet 192.168.3.1/24 ...
0
votes
0answers
230 views

Linux: Block all applications from accessing internet and whitelist some (Kubuntu 14.04)

How can you block all applications from accessing the internet in Kubuntu, and only whitelist some? (To prevent automatic updates, downloads (data plan), "calling home" and sending any log/usage ...
0
votes
0answers
28 views

Nessus Home not logging in

I have deleted and reinstalled Nessus for the 7th time now and I still cannot log in. Ive checked everything from my firewall and SSl certificates. When I try to login it only shows a spinning wheel ...
0
votes
1answer
166 views

Disable Fortitoken on a Fortigate Firewall

I made an error while configuring my admin account on the FortiGate 60d and enabled forti token for 2 step authentication. Thing is I enabled the wrong token and I do not have that device with me. Now ...
0
votes
0answers
248 views

Unable to connect server through winSCP and its giving access denied error

Even though by providing correct username and password it's not allowing to connect to server. I turned off firewalls also in server. But, still not able to access FTP connection. I also checked that, ...
1
vote
3answers
50 views

iptables catches on DENY but not on ACCEPT place prior to it in the chain

I have a weird problem with my iptables firewall: If I set two consecutive identical rules, the first is ACCEPT and the second is DENY, the incoming packet is denied (and logged as such). How is it ...
0
votes
0answers
22 views

equivalent of iptables rule in ip6tables

I m newbie in the iptables. I have the following iptables rules in the source code of a project iptables -t mangle -I PREROUTING ! -i br0 -p TCP --dport 45 -j MARK --set-mark 0x1000 iptables -t nat ...
0
votes
1answer
29 views

what the “!” means in the iptable rule

what the "!" means in the following iptable rule iptables -I inacc ! -i br0 -p UDP --dport 69 -j ACCEPT I think is related to the interface br0. I think it mean any interface except the br0 Am I ...
0
votes
1answer
21 views

MySQL: Port issues on an domain network setup

I am looking for options to have a MySQL server on corporate environment where opening a port in the Windows Firewall is quite difficult (a lot of red tape). At this point I am not looking to have a ...
0
votes
1answer
89 views

Connect a external SSH Server from blocked SSH Tunnel network

I need connect to SSH Server in my work office from a academic network, but in all tries occurred a "Timeout error". In my home and in other places the access work fine to connect (SSH Server working ...
1
vote
1answer
588 views

How to block docker-mapped ports with a firewall from outside the host without messing up docker routing inside the host?

I have a docker container running on a host with some port mapped to a port on the host. docker run -d -p 9009:9009 someserver I want this machine firewalled off from the internet except for 80, ...
1
vote
1answer
4k views

How do I stop my Mac from asking to accept incoming network connections?

I am using Syncthing, which is an application to sync files between two or more computers. I believe Syncthing (on github) needs to be allowed to Accept incoming network connections to work properly. ...
0
votes
0answers
306 views

Disabled firewall on a Asus router and now can't connect

I have an ASUS RT-N12 wireless router with WAN web access. A dummy of the router web interface can be found here. I had "Enable Web Access from WAN" on and was able to access the web interface via a ...
0
votes
0answers
197 views

Im trying to user docker to install cloud9 ide

Im trying to user docker to install cloud9 ide on my centos7 vm. Im using this docker image: https://github.com/kdelfour/cloud9-docker Ive set firewalld to set 80 and 8080 to public, ive tried ...
0
votes
1answer
71 views

Remotely accessing OSX machine behind firewall

I need some way to remotely access an OSX machine that sits behind a remote firewall (if it weren't for the firewall thing I could just ssh into it, but I have no control over the remote firewall to ...
0
votes
0answers
413 views

CS:GO SRCDS and iptables (firewall)

I have very strange problem. This morning I wanted download, install and host small server for CS:GO on my VPS. I used this tutorial: ...
0
votes
1answer
3k views

ipfw not available on Mac OS X yosemite?

I'm trying to use https://github.com/apenwarr/sshuttle on Mac OS X 10.10 yosemite. But sadly I couldn't find ipfw. Is there a way to install it or something?
0
votes
0answers
36 views

Opening outgoing ports on dedicated machine

I have a website where I have been working with another person on a game server listing site. It queries the game servers and shows information etc. Anyway upon talking to the creator of the script he ...
0
votes
2answers
478 views

Best way to secure RDP connections WITHOUT VPN?

We are needing to use RDP for a client, but the VPN and internet connection is just too flaky to use VPN anymore. VPN is NOT an option anymore for us. Currently the plan is to open a bunch of ports ...
3
votes
0answers
47 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, ...
4
votes
1answer
302 views

Intermittent connection and “Firewall Blocked” log entries on Cisco DPC3939B with firewall “disabled”

First, I apologize if this question seems to be "all over the place". I've tried to sum it up as clearly as I could, but there are a lot of moving parts, so I've tried to be detailed with my ...
0
votes
0answers
87 views

Sharepoint site and Excel files often prompting for login when accessed from corporate network

Since about one month ago a number of users have been experiencing problems accessing a Sharepoint 2010 system we have hosted externally. They are prompted to enter their login details when accessing ...
0
votes
1answer
2k views

Remove Avast Firewall NDIS Filter Miniport?

First of all, I would like to know what is Avast Firewall NDIS Filter Miniport(and what the hell it has to do with my pc even after uninstalling Avast IS). Then, How can I remove it from my pc? ...
2
votes
2answers
70 views

Bridging Firewall to Public Wifi

My building offers wifi to its residents. It is not managed by IT professionals. I would like to use this internet source some of the time, but would like to be protected from machines on that ...
1
vote
0answers
18 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 ...
0
votes
0answers
48 views

How to redirect traffic to a fixed IP address in Fwbuilder

I'm new to fwbuilder and I want to redirect all incoming wifi traffic to my web server. I tried many iptables command but I've failed so I came up to GUI firewall. Can anyone suggest how to do it?
0
votes
1answer
167 views

Block ICMP flood from a specific IP with pf

I'm getting a lot of ICMP throttle messages in my system.log: Apr 11 20:45:28 kernel[0]: Limiting icmp unreach response from 1054 to 250 packets per second Apr 11 20:45:29 kernel[0]: Limiting icmp ...
0
votes
1answer
535 views

KODI remote isn't working

I'm trying to correctly configure KORE, the official Kodi Remote app for Android, but I'm unable to do so. My copy of Kodi is installed on a laptop with openSUSE as a base system, and both it and my ...
0
votes
0answers
58 views

Find out why I cannot download from a specific site

I'm running Windows 8.1 SL trying to download the Desktop app from: http://www.systemrequirementslab.com/cyri However, when I get to the download page ...
0
votes
0answers
201 views

No internet access exclamation mark appears across LAN

I have some problems with my domain network. we have about 100 - 125 PC's in our office and they are connected to domain.we use windows server 2012 as a domain controller.most of the computers connect ...