Several days ago, I was worried about this launch, because KDE6 with Wayland is supposed to break many things… so I did a list of things to test in the new Fedora (https://www.unmanarc.com/en/2024/02/things-to-test-in-fedora-40-kde-no-x11/), lets see what happened…
Continue reading Testing Fedora 40 KDE (RC1)Category Archives: System Administration
Things to test in fedora 40 KDE (no X11)
I have a personal list that I want to test in Fedora 40 with KDE 6… I will update the results after the release…
- KeePassXC AutoType
- ssh -X (I want to execute some visual app from a remote host running F40 and from F40)
- Installing it in a qemu/kvm VM… (and GUI performance!)
- KRFB (VNC)
- xrdp
- fullscreen sharing (like google meet, zoom?)
- program sharing thumbnails
- HIDPI behaviour (4K)
- Nvidia card performance…
Solving the openvpn_execve Error in LXC
Problem Description:
When running OpenVPN in an LXC environment, users may encounter a specific error that prevents the OpenVPN service from operating correctly. The error manifests as follows:
Jan 08 00:56:47 fw openvpn[404]: openvpn_execve: unable to fork: Resource temporarily unavailable (errno=11)
Jan 08 00:56:47 fw openvpn[404]: Exiting due to fatal error
Jan 08 00:56:47 fw systemd[1]: openvpn-client@yourvpn.service: Main process exited, code=exited, status=1/FAILURE
Installing Libvirtd in OpenSUSE
Installing this virtualization is very easy..
Installing process:
to install, just type this commands:
Continue reading Installing Libvirtd in OpenSUSEInstalling VirtualBox-7.0 in OpenSUSE 15.x (or tumbleweed) from repo and UEFI Secure Boot Enabled
This is a simple/short how to for installing VirtualBox 7 in OpenSUSE 15
Here we are handling two problems:
- There is no repo for OpenSUSE 15.4 (we need to do a trick)
- There is no documentation on how to create proper UEFI secure boot MOK’s (owner keys) for the newer OpenSUSE which demands that the key will have special attributes like “codeSigning“
so, here is the answer:
Continue reading Installing VirtualBox-7.0 in OpenSUSE 15.x (or tumbleweed) from repo and UEFI Secure Boot EnabledOpenSUSE 15.x Post Install Guide Part 1 (Software Installation)
WIP (Work In progress)…
This is my personal guide for post install OpenSUSE with KDE for developing/hacking, everything as root…
Continue reading OpenSUSE 15.x Post Install Guide Part 1 (Software Installation)Security Risk Without a CVE
Most security assessments only includes CVE’s and known vulnerabilities but many fail to address the true potential security risks. And this will create a big problem for your organization.
The problem starts because most organizations only wants to have a security analysis based on know-existent vulnerabilities, like a “tell me what KB to patch”, but this approach is not good and fails to protect you in two ways:
Continue reading Security Risk Without a CVEMitigating Security Risks
When you do a security assessment, you need to elaborate some recommendations to mitigate the potential risks. This is one of the most difficult parts, because bad assumptions can easily lead to false sense of security and overspending…
Continue reading Mitigating Security RisksInstalling K-Ubuntu 16.04 with LVM+LUKS Full Encryption
Kubuntu and mostly ubuntu installations comes with a very basic installer, and does not allow you to personalize the encryption, by example, if you have windows and linux together in the same hard drive, the installation won’t allow you to dual boot it, it will force you to use the whole disk, removing the existing windows partition.
Continue reading Installing K-Ubuntu 16.04 with LVM+LUKS Full Encryption
GnuTLS Priorities 2015
Unfortunately, TLS has been plagued by several vulnerabilities in recent years, making every HTTPS connection potentially unsafe.
In this article I’ll show you how to get the Grade A+ on SSLLabs (https://www.ssllabs.com/) through the appropriate use of GnuTLS Priorities.