Security - Sudo vulnerability allows privilege scalation
A 10 year old sudo related flaw has been discovered that can make unprivileged users obtain root permissions. Linux admins should patch this critical vulnerability
Security - Error installing Kali: "Installation step failed"
When I was installing a Kali virtual machine, I came across an error in the “Software selection” step
After confirming the software, the installation shows
Windows - Error connecting RDS RemoteApp Terminal services
“The list of RemoteApp programs cannot be accessed. Verify that the management console is connected to the correct server and that you have Administrator privileges
Exchange - A reboot from a previous installation is pending
When updating Exchange you probably con come across the following error in the prerequisite analysis:
A reboot from a previous installation is pending
The way
Linux - rsyslog: parsing and splitting message fields
Until now I hadn’t used the options and features rsyslog comes with. Let me show a simple example I have done today. This is
Linux - Simple DNS server using DNSmasq
This article offers a 5 min howto about configuring your own DNS server (perhaps for your company or maybe for your home network) using DNSmasq.
F5 BIG-IP - Vulnerability!! CVE-2020-5902 - Remote Code Execution (RCE)
Security Advisory Description
The Traffic Management User Interface (TMUI), also referred to as the Configuration utility, has a Remote Code Execution (RCE) vulnerability in undisclosed
Ironport - Strip DisplayName from From header
Yesterday I came across a request in which for a group of email users, the display name must be removed when sending to recipients outside
F5 BIG-IP – Dynamic RDP destination for APM
Portal access (APM) allows user access internal resources such as servers and computers via Remote Desktop (RDP). There are 3 options to to configure the
Icinga - Notification template with notes support
I have just configured an Icinga2 notification template for hosts and services to replace the ugly and impractical default one.
Features
Not big things but
Icinga - Notes section in markdown language
Not sure since what version this feature is available but I have started to use the notes section of the services i am monitoring in
Checkpoint - Policy installation failed. Error code: 0-2000040
This morning i have come across a Checkpoint problem: No way to perform a succesful policy installation in any of the several virtual system gateways
Linux - SQL Server command line to perform queries (mssql-cli)
There are different methods to run queries against an SQL Server from a Linux machine. The one I am using is mssql-cli (https://github.com/
Linux - Show git branch in bash prompt
If you are a Git user, you can find very useful this custom prompt.
Branch
Shows working branch when it detects the current folder is
Linux - Join to Windows domain (realm command)
Dont be afraid. Joining a linux machine to a windows active directory domain is not difficult. This post explains step by step how to join