In that file, you need to define one or more anchors which contain the actual rules. There’s a default PF configuration file, /etc/pf.conf, and I suggest you don’t modify it. Therefore, keep this command in mind: sudo pfctl -d.
IPINATOR PORT HOW TO
If you fuck up your firewall rules, you might end up in a situation where you can’t even google how to fix things again. But since the PF rules protect me from unencrypted communication, I don’t really care. Sometimes I had to terminate OpenVPN myself (using sudo killall openvpn) because it wouldn’t reconnect and Tunnelblick wasn’t able to terminate it. I found Tunnelblick (3.3) to be kind of unstable on my machine. According to the Tunnelblick documentation, this is equivalent to the OpenVPN option -redirect-gateway def1. Make sure that you enable “route all traffic through the VPN” in the “while connected” tab of the advanced settings. Get an account, pay 6€ to activate it for a month (I’ve used PayPal, but you can also use BitCoin and other methods) and set it up according to the guides available on the IPredator website. I’m using Tunnelblick as my OpenVPN GUI and IPredator as my VPN provider. A tutorial on PF itself, which is a OpenBSD project, is available as well. There’s a nice guide that explains the PF setup on OS X, and I’m not doing anything more than that here. There’s no automatic detection whatsoever whether OpenVPN is running, so if you want to use the Internet without the VPN again, you’ll need to explicitly disable PF.That’s why in my setup TCP connections are only allowed over the VPN. Note that rogue admins (or rogue users) can still try to spoof their IP address and impersonate Google’s servers, thus supplying you with incorrect DNS responses. The DNS servers I use are Google’s, because I trust them a bit more than a shady Starbucks DNS.If I’d allow IPv6, all of my v6 connections would be bypassing the VPN! But IPredator doesn’t support v6, and I didn’t find the time to configure my own VPN server. Yes, some of you will be outraged about that, and rightly so. (Else, people might(?) be able to do evil things with DNS spoofing and SRV records.) I’m using OpenVPN on UDP port 1194, and I highly recommend that you don’t use a TCP-based VPN connection. A connection to the VPN server(s) on whatever port the VPN uses.I’m using IPredator as the VPN provider, which uses several IP addresses and DNS Round Robin to spread the users across them, so I want to be able to use DNS. DNS, if we don’t want to connect to the VPN by IP address.This means we should allow DHCP (for getting an IP address) and ICMP (for being a nice internet citizen). So, what do we need in order to connect to the VPN? PF is OS X’s recommended way of filtering packets and available in Lion or higher, afaik. So what I basically do is to forbid nearly all network traffic (using PF), except for the things that are required to connect to the VPN. And the focus of this guide is definitely that second part, because setting up the VPN is pretty easy, but if the connection breaks, is blocked or for some other reason not running, your system will by default transmit data anyway, and unencrypted data will be interceptable.
IPINATOR PORT SOFTWARE
The machine I’m using is a MacBook Air with OS X Mountain Lion, and the software I use is Tunnelblick for the OpenVPN connection and PF (“packet filter”) to transmit as little unencrypted traffic as possible when the VPN goes down. Please don’t ask me (except if we know each other personally), because I don’t have the time to do user support for thousands of guests. In case you don’t know what a VPN is or don’t feel comfortable doing the things I suggest in this guide (for example because you don’t understand anything at all), please contact a hacker you trust and ask her or him to make your connection more secure. Please note that this guide is written for users who are at least a bit tech-savvy. And the best way to do that is by using a VPN. So you want your packets to be always encrypted. If these packets are encrypted, messing with them is much harder (but not impossible! – see the end of this article). Some of them might start intercepting the data on the network or do other nasty things with the packets that they can get. And a network with several thousand connected users is certainly an interesting thing to play with. Hackers get bored easily, and when they’re bored, they’re starting to look for things to play with. You should never let passwords or private data be transmitted over an untrusted network (your neighbor’s, the one at Starbucks or the company) anyway, but on a hacker congress like the #30C3, this rule is almost vital.
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