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Updates DNS leak, following recent publication

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@ -120,7 +120,7 @@ A Virtual Private Network (VPN) protects your IP, and allows you to more securel
**Use WPA2** | Recommended | WPA and WEP make it very easy for a hacker to gain access to your router. Use a [WPA2](https://en.wikipedia.org/wiki/Wi-Fi_Protected_Access) password instead. Ensure it is strong: 12+ alpha-numeric characters, avoiding dictionary words.
**Keep router firmware up-to-date** | Recommended | Manufacturers release firmware updates that fix security vulnerabilities, implement new standards and sometimes add features/ improve the performance your router. It's important to have the latest firmware installed, to avoid a malicious actor exploiting an un-patched vulnerability. You can usually update your router by navigating to [192.168.0.1](192.168.0.1) or [192.168.1.1](192.168.1.1) in your browser, entering the credentials on the sticker on the back of you of your router (not your WiFi password!), and following the on-screen instructions. Or follow a guide from your routers manufacturer: [Asus](https://www.asus.com/support/FAQ/1005484/), [D-Link](https://eu.dlink.com/uk/en/support/faq/routers/mydlink-routers/dir-810l/how-do-i-upgrade-the-firmware-on-my-router), [Linksys (older models)](https://www.linksys.com/us/support-article?articleNum=140365), [NetGear](https://kb.netgear.com/23442/How-do-I-update-my-NETGEAR-router-s-firmware-using-the-Check-button-in-the-router-web-interface) and [TP-Link](https://www.tp-link.com/us/support/faq/688/). Newer Linksys and Netgear routers update automatically, as does Google's router.
**Configure your router to use VPN** | Optional | If you set your VPN up on your router, then data from all devices on your home network is encrypted as it leaves the LAN. Again, it's important to select a secure VPN provider, as they will see what your ISP previously had been logging. Follow a guide from your router manufacturer or VPN provider, or see [this article](https://www.howtogeek.com/221889/connect-your-home-router-to-a-vpn-to-bypass-censorship-filtering-and-more/) to get started. Note that depending on your internet connection, and VPN provider, this could slow down your internet.
**Stay protected from DNS Leaks** | Optional | A DNS leak is the act of monitoring, storing and filtering your DNS traffic at ISP level. To prevent this you can either use a DNS server provided by your VPN, or use [CloudFlares DNS](https://1.1.1.1/) (set nameservers to `1.1.1.1`), or maintain your own DNS server. You can check your protection, by running a [DNS Leak Test](https://www.dnsleaktest.com/), or run `nslookup whoami.akamai.net` in your terminal. Read more about [preventing DNA Leaks](https://securitytrails.com/blog/what-is-dns-leak-how-can-i-prevent-it).
**Protect against DNS leaks** | Optional | When using a VPN, it is extremely important that all traffic originating from your computer is routed through the anonymity network. If any traffic leaks outside of the secure connection to the network, any adversary monitoring your traffic will be able to log your activity. For OpenVPN, you can add: `block-outside-dns` to your config file (which will have the extension `.ovn` or `.conf`). If you are unable to do this, then see [this article](https://www.dnsleaktest.com/how-to-fix-a-dns-leak.html) for further instructions. You can check for leaks, using a [DNS Leak Test](https://www.dnsleaktest.com/)
**Use a secure VPN Protocol** | Optional | [OpenVPN](https://en.wikipedia.org/wiki/OpenVPN) is widley used, and currently considered a secure [tunneling protocol](https://en.wikipedia.org/wiki/Tunneling_protocol), it's also open source, lightweight and effiecient. [L2TP](https://en.wikipedia.org/wiki/Layer_2_Tunneling_Protocol) can be good, but only when configured correctly, whereas it's much harder to go wrong with OpenVPN. Don't use [PPTP](https://en.wikipedia.org/wiki/Point-to-Point_Tunneling_Protocol), which is now legacy, and not considered secure, and avoid [SSTP](https://en.wikipedia.org/wiki/Secure_Socket_Tunneling_Protocol) (proprietary, owned by Microsoft and due to lack of transparency, could be vulnrable to exploits). [IKEv2](https://en.wikipedia.org/wiki/Internet_Key_Exchange) and [WireGuard](https://www.wireguard.com/) *(experimental)* are also good options.
**Avoid the free router from your ISP** | Optional | Typically they’re manufactured cheaply in bulk in China, and firmware updates which fix crucial security flaws aren’t released regularly. Consider an open source based router, such as [Turris MOX](https://www.turris.cz/en/mox/overview/)
**Ideally hide your SSID** | Optional | An SSID (or Service Set Identifier) is simply your network name. If it is not visible, it is much less likely to be targeted. You can usually hide it after logging into your router admin panel, [see here for more details](https://www.lifewire.com/hide-your-wireless-network-from-your-internet-leeching-neighbors-2487655).