Forum: Security

Hello, So I thought I’d get smart and set up a Linux machine as the firewall for my Win machines to Comcast. Problem is, it doesn’t work! Please…

I have Linux Fedora core 2 with Mozilla browser in the network. Need to access servers behind firewall. Before I access servers behind firewall I…

Hello, I have openvpn up and running successfully on FC9. I’m using routing mode with the following configuration My internal LAN range…

I followed the instructions at iptablesrocks.org to set up a firewall for my home network. It’s working great, and I can see the benefits…

Hi, I have a bunch of rules in iptables to calculate network traffic and these are working fine for most IPs on the network (192.168.0.106,…

What is the difference between iptables -A INPUT -j DROP and iptables -A INPUT-s 0.0.0.0/0 -j DROP? Will this deny any request for those who…

So… my learning adventures go like this: asrock 939DUAL-SATA2 athlon 64 3500+ 2gb ddr 400 nvidia 6200 AGP NICS: 3 x realtek pci gigabit…

Dumb question. We recently had a linux firewall installed with three development servers and a cheapo switching hub. When i got a look at the work…

How can I start or stop IPtables on a debian system? (on my FC3 system it is /etc/init.d/iptables stop/start)

hi, i have the following setup: LAN — Linux Box —- ISP (Internet) my goal: let my LAN access the internet via Linux Box using…

Hello, i am new to this forum and i have some problems with bridges. I have 3 laptop where they use RH 7.3 and 2 of them are used as a GW where…

Hi guys, i’m working on a firewall with a transparent proxy (tinyproxy) and a content filter (dansuardian). That’s my network scheme: Subnet…

Hi 🙂 , I have 2 servers, one running VMware ESX VI 3 (Linux OS) and the other running Windows Server 2003 Enterprise Edition. Currently I faced…

I have configured vsftpd to work on my local network at home but would like to poke a hole in my router’s firewall so that I can upload files to it…

I am hoping that someone can answer a question for me. I would like to know if it is possible to use a linux machine to both act as node on the…

I am toying with iptables (v1.3.6) and it seems I miss something when setting up mangle table. For the purpose of an expiriment I start to download a…

Hi to all :), My first post here. I’m having a problem with iptables. Can someone help me, I wanted to do a port forwarding. lets say I have 2…

Hey everyone. I administer a LAN at a department at my university and soon we’re gonna switch from private to public IP space. Now as you will…

Hello, I am working on a small project where I have a device with two network interfaces attached to the same subnet, iface1 and iface2. Some of…

Hi All: I am creating my first homegrown firewall I have 3 questions: Background: The firewall will be multi-homed. The subnet for this…