linux
Remove a host from BackupPC
Small tutorial on how to remove a host from BackupPC.
Diogo Ferreira
linux
Open XFCE menu with the Windows key on Xubuntu 20.10
How to open the XFCE menu (Whisker) with the Windows key, on Xubuntu 20.10.
backuppc
BackupPC - No ping response
If you're using BackupPC, and you're trying to backup a server that is behind a firewall and does not reply to ping, BackupPC will not start the backup, even if you have the SSH port open. No ping (no ping response from) ... You can override this
ubuntu
Prevent Ubuntu 20.04 from changing audio device to USB headset on boot
This was bothering me. I'm using an wireless headset (HyperX Cloud Flight Wireless Gaming Headset) that has an USB receptor and some old Logitech speakers on my desktop, currently running Ubuntu 20.04 (dual booting with Windows 10). Every time I reboot or turn on my computer and
linux
How to install Grocy with Apache on Debian 10
This took me longer than I'd like to admit, but, to be honest, their documentation is not on point. Grocy is a web-based self-hosted groceries & household management solution for your home. I already have a few services running on my home server, sitting behind my faithful Apache,
gitlab
Unblock LDAP or Active Directory user in GitLab
If you're running a self-hosted GitLab instance and use LDAP or Active Directory authentication you may notice that sometimes users get "Blocked" and you can't unblock them using the web interface. When this situation occurs, you can unblock them using the gitlab-rails console directly
How to install Pi-hole with Apache on CentOS 7
Installing Pi-hole on a CentOS 7 server (instead of a dedicated machine like a Raspberry Pi) is an option that the fine gentlemen who developed it gave us. Since I already had a server ready with Apache, I took that route. I have a small Optiplex 3040 that I use
Running Steam on Debian using an Nvidia graphics card
If you’re running Steam on Debian using an Nvidia graphics card, you’ll probably run into this error when you’re starting Steam for the first time: You are missing the following 32-bit libraries, and Steam may not run: libGL.so.1 To solve it just install the following
How to hide the libvirt-qemu user from the login screen on Linux Mint 19.1
This is a simple tip on how to hide the libvirt-qemu user from your login screen. If you installed the KVM package using apt on your Linux Mint 19.1 you may notice that a new user shows up on your login screen (at least if you’re using Cinnamon
OpenSSL cheat sheet
This OpenSSL cheat sheet was originally found on bitrot.sh. Since the site appears to be gone, and I had this saved, I’m leaving it here for future reference. Generating Certificates Generate RSA Private Key + CSR openssl req -out newkey.csr -new -newkey rsa:[bits] -nodes -keyout priv.key
Convert SSH key from PuTTY to OpenSSH
Recently I’ve had to migrate an SSH key that was generated on a Windows 10 machine to a Debian workstation. The instructions on how to convert an SSH key generated on PuTTY to OpenSSH are as simple as: sudo apt install putty-tools puttygen your-windows-10-private-key.ppk -O private-openssh -o your-openssh-private-key-name
Use virt-manager without root password on Debian 9
After installing virt-manager on Debian 9 you’ll notice that every time you try to open it it will ask for your root password. In order to avoid that you’ll just need to add your user to the libvirt group: sudo usermod -aG libvirt dferreira Logout and login again.