Not all my FIDO U2F keys (for e.g. Yubikey) were working under Linux and as it turns out, I had to add UDEV rules. I'll show you how. First, which rules you have to use depend on your UDEV version. You can check your version with: sudo udevadm --version All [...]
You might want to have your own /etc/resolv.conf but it keeps getting overwritten or lost. I have the solution! On systems like Ubuntu 18.04, by default the file /etc/resolv.conf is controlled by systemd-resolved. Usually it fetches the DNS servers and domain name (search domain) from DHCP and writes it to [...]
You might want to check what packages you installed on OpenWrt, for example when wanting to build a custom image based on your installation or to restore the packages after an upgrade. I found a neat little script that lets you do just that! The script I found on a [...]
Today I will show you a free plugin that will boost your WordPress page speed, and also show you how to set it up! Autoptimize to optimize WordPress page speed In your WordPress Dashboard left panel click on Plugins and then at the top "Add New" and search for Autoptimize [...]
An SPF record is basically a DNS record of the TXT type, which contains information about who may send email from your domain. It is used to avoid spoofing and spam. So how does it work? Basically, when a (decent) email server receives an email that is supposedly originating from [...]
By default, Docker uses 172.17.0.0/16 for its default docker0 interface, which can be problematic if your network or a network you want to reach is on the same subnet as Docker. I will show you how to change Docker's network in a jiffy! Requirements Available subnet to assign to DockerPermission [...]
It's handy to know, so here they are: https://raw.githubusercontent.com/StevenBlack/hosts/master/hosts https://mirror1.malwaredomains.com/files/justdomains http://sysctl.org/cameleon/hosts https://s3.amazonaws.com/lists.disconnect.me/simple_tracking.txt https://s3.amazonaws.com/lists.disconnect.me/simple_ad.txt To restore Pi-hole to the default blocking lists, just delete all the lists but these six five lists. Note: There used to be a sixth list, which is now dead so you can safely delete it: https://hosts-file.net/ad_servers.txt [...]
I used to have huge collection of block-lists for my Pi-hole(s) but I was annoyed about all the false positives, and decided to reset to the default lists that come with it. That way, I had no more issues and it would still block ads. But this also meant tracking [...]
While VPN's are great for virtual private networks (hence the name), it is often overkill if you just want to bypass a firewall or get an encrypted tunnel to protect yourself from snooping (e.g. on public Wi-Fi). More often than not, a VPN is also a paid service unless you [...]
Revoking certain certificates on March 4th - 5th, 2020 UTC Due to a bug related to CAA checking in Let's Encrypt, millions of certificates will be revoked "today". To quickly check if your domains are affected, use this tool: https://checkhost.unboundtest.com/ If your domain is affected, you have to renew your [...]