Tuesday, 6 February 2018

Router security part 3 (Quad9)

You know how DNS works from part 2, so now it how to change your DNS.

my favourite 2 providers:
1 Open DNS family friendly. great for children's PC's, blocks known websites that use adult content and violent or disturbing videos.

2 Quad9. An excellent DNS provider to block known phishing websites, this is quite new, but already good and will improve in speed over time.

You can either change the DNS in your router settings, so all devices that connect to it automatically use your chosen DNS.

Or change to DNS in one or more devices directly, so you will be using your chosen DNS with only the the device/s you chose to use it on.

This will not stop all unwanted content or viruses, but will block all known websites that have adult or unsuitable content. So please be careful what you click on, and email attachments that you open. 

Router settings:
Log onto you router by entering 192.168.1.1 into your search tool-bar, then enter your admin user name and password, usually admin, admin or admin, password. Then go to DNS settings, usually under advanced or dynamic DNS settings, then replace the primary and secondary DNS servers with.

Open DNS
Primary        208.67.222.123
secondary    208.67.220.123

Quad9 DNS
Primary         9.9.9.9

Then save your settings, reboot your router and PC.

PC settings:
go to settings/control panel, then network settings, then replace the DNS servers with one above, then save your settings, reboot router and PC.

Thursday, 1 February 2018

Router security part 2 (how DNS works

Domain name system (DNS) is a protocol for how computers exchange data on the internet, this works by the DNS converting a domain name like "teapigs.com" into an Internet Protocol address like 176.34.129.129 that computers can use to identify each other on the network. 

Also, the last part of a web address makes it easy to recognise what category the website is in. eg. .com - commercial websites, .edu - educational organisations, .gov - government.

DNS is changeable through your PC or router as shown in part 3, this is useful for blocking content before it reaches you pc (if configured on your router), or changing the DNS on a single PC such as a child's PC to block adult content.

This works by the DNS provider having a database of know bad websites, whether that be phishing websites, adult content or extreme violence, which will be constantly updated, keeping the user as safe as possible.

Router security part 1 (basic settings)

Many internet providers use just a few default variables on names and passwords on their routers, I've even seen several routers on display in windows with the passwords in clear view, drive by attacks are also increasing, let's strengthen our default settings and encryption.

Access your router settings by typing your IP address into the tool bar of your browser usually 192.168.1.1, then entering your admin name and password usually admin/admin.

WPS- switch off, (this is easy to crack and there is a way to turn off the more secure WPA/2 encryption if this is switched on). so don’t enable both.

WPA/2- Switch on, this the better type of router encryption, if this is not available for your router use WPA.

UPNP- (universal plug n play) This makes life easy if you play online games enabling ports to open for the online game services, if you don’t need this, switch it off. (this is usually enabled by default).

SSID- (service set identifier) Change this to a name you will recognise but nothing linked to you personally such as your name/address etc.

Administrator password- change to a random, long password, use upper, lowercase and symbols to lengthen the time to crack.

Wi-fi password- again, use a good password, different from above, always use different passwords for everything that requires one, it’s not much inconvenience to use a long password as you don’t have to enter it frequently so make it a good one, Steve Gibson's perfect passwords is a good choice. https://www.grc.com/passwords.htm

Router security part 3 (Quad9)

You know how DNS works from part 2, so now it how to change your DNS. my favourite 2 providers: 1 Open DNS family friendly. great fo...