Sometimes you have to SSH into different devices with the same IP address, for example when you flash routers with OpenWrt and want to do initial configuration. One annoyance with that is fingerprint checking, as the fingerprint will be different for every new device but the IP will stay the [...]
A theoretical setup where the encryption key is in the initramfs. You are encouraged to put /boot on a separate USB stick, or if you know what you're doing, make sure you're using classic HDDs, where you can safely erase the key on decommission.
You can find out really easily with one simple command: systemd-analyze Which will output something like: Startup finished in 9.708s (firmware) + 3.692s (loader) + 46.909s (kernel) + 13.614s (userspace) = 1min 13.924s graphical.target reached after 12.063s in userspace So as you can see, my laptop takes ages to boot. [...]
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 [...]
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 [...]
Pi-hole recently released an update that tells Firefox to bypass DoH, and this might be undesirable. I have the solution! Firefox basically checks for specific DNS records, and if found, will disable DNS over HTTPS. This can be useful if you're on a corporate network and have DNS servers in [...]
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 [...]