FreeBSD kernel nat or natd?view story

http://unix.stackexchange.com – As I notice more often with FreeBSD, there are always plenty of ways that lead to some specific goal. After figuring out which firewall I wanted (I choose ipfw) I now am completely insecure about which way to do Network Address Translation (NAT). As I have discovered now, there are two ways to to NAT, I could use the kernel space ipfw nat or I could use the userspace natd. (HowTos)

QEMU virtual networking NATview story

http://serverfault.com – I'm trying to set up a virtual network as described here. These are my steps: ifup eth0 # uses DHCP brctl addbr br0 ifconfig br0 up kvm ... (HowTos)

iptables routing - host inaccessible publiclyview story

http://serverfault.com – i have a dedicated openVPN server sitting behind a NAT router and i have the server's static IP set in the DMZ; the problem is that with current rule set (as seen in the screenshot below) i cannot connect to the VPN server from the internet, nor SSH for that matter; however, if i allow traffic on eth0 all is fine but that pretty much allows any kind of traffic to reach the host and that completely (HowTos)

netcfg: Configuring a bridge for use with virtual machines (VMs)view story

https://bbs.archlinux.org – I've been trying to make virt-manager do all the work to see if it's possible.  Seems that in order to do so, libvirt needs the ability to pass options to dnsmasq (and possibly script hooks), but that isn't something I can work on right now.I need this VM up and running this weekend, so I've at least managed to get NAT working.  But I was disappointed to find out that (HowTos)

StrongSwan ipsec ubuntu "ignoring informational payload, type NO_PROPOSAL_CHOSEN"view story

http://serverfault.com – I have StrongSwan running on a ubuntu server and I'm trying to create an ipsec encrypted VPN tunnel with a Cisco 2821 router . The connection is not working and I cannot figure out why. It appears to complete phase 1, but fails at phase 2. Can anyone provide suggestions? I'm stumped. (HowTos)

network bridged openvpn same lan/subnetview story

https://www.centos.org – Most of the online docs I’ve found deal with bridging, and virtualization. I’m trying to use bridging to link openvpn clients with our internal network, without nat(for a voip implementation on ... [by smokeman] (Distributions)

Cannot open any web page after configuring squid serverview story

http://serverfault.com – 5 and have a server at eth2 with IP and share the network into eth0 with I try to block all user to access facebook. (HowTos)

IPSec between OS X clients and Windows Server (native, no 3rd party)view story

http://serverfault.com – I would like to connect Mac OS X (Lion) with Windows Server 2008 (R2) using IPSec natively. Simplest possible settings: No certificates, no tools, no specials. Just a Windows Server with IPSec "Pre-Shared Key" Authentication. Looks like an easy job, but after weeks of research I still have no success. Attached there's a screenshot of the Windows settings. (HowTos)

Block some website in Linux machineview story

http://serverfault.com – In my office all are using facebook and some other site that we don't want to be. Form the server pc, I used to share my net through the /ect/rc.local file. (HowTos)

Server behind DMZ firewall won't respondview story

http://serverfault.com – I have a DMZ server set up to forward specific ports to a couple of machines. The intended behavior is for me to send a request to the DMZ on a specific port, and have the machine that's inaccessible publicly respond with data. (HowTos)