Sometimes you find your WSUS server keeps crashing over and over again. WSUS is unavailable and/or the WSUS management console hangs. When you start to investigate as to why Windows Server Update Services crashes, you’ll notice the following error message being logged in the HTTPErr log files:
Disable SMBv1 to prevent prevent Petya/NotPetya, WannaCry/WanaCrypt0r ransomware spreading on your network. These worm viruses exploit a vulnerability in Windows Server Message Block (SMB) version 1 (SMBv1), and spread like wildfire. It is urged you disable SMBv1 in your Windows variant (Windows 10, 8.1, Server 2016, 2012 R2), and here is how if you haven’t done so yet.
Ideal for Windows Server Core or Nano: Detect the ethernet network speed using PowerShell or WMI is ideal for Windows Server Core or Nano. If you ever need to lookup the speed of your ethernet network card in Windows on the command-line, use one of the following WMIC commands on your PowerShell prompt:
Securify reports: A DLL side loading vulnerability was found in the .NET Framework version 4.6 when running on Windows Vista or Windows 7. This issue can be exploited by luring a victim into opening an Office document from the attacker’s share. An attacker can use this issue to execute arbitrary code with the privileges of the target user. This can potentially result in the attacker taking complete control of the affected system. If the WebDAV Mini-Redirector is enabled, it is possible to exploit this issue over the internet. This issue can be exploited even if the Office document is opened in Protected View.
OpenSSL comes in handy when you need to generate random passwords, for example for system accounts and services. In this short post I’ll give you a quick example on how to generate random passwords with OpenSSL in Linux (Bash), Windows and PHP…
How to tunnel Remote Desktop over SSH with PuTTY? Have you ever been in a situation where you needed to perform remote administration on a Windows Server, and the RDP port 3389 is blocked on a firewall? You can tunnel RDP over SSH with PuTTY. This particularly comes in handy when there is no VPN available to the remote network…
Install software packages during a Windows Deployment Services (WDS) deployment, without Microsoft Deployment Workbench (available in the Microsoft Deployment Toolkit, or MDT). In my environment, I had to set up a new Windows Deployment Services (WDS) configuration for Windows 8.1 Enterprise. To roll out in our office (some 20+ workstations). I wanted to install some additional software at the same time, without using Microsoft Deployment Workbench, because I find the interface too slow. The solution? Read on…
Monit monitoring for websites and services, on an Ubuntu 14.04 LTS VM, hosted on a Windows Server 2012 R2 or Windows 8.1 Hyper-V. This post is about setting up a Monit monitoring service. Monit is a free and open source service monitoring application which can perform various event-based actions. Monit can send email notifications, restart a service or application, or take other responsive actions. We set Monit up on a Ubuntu 14.04 VM, built on Hyper-V. And we use Monit to monitor several websites, and send out notifications on downtime.
After not using Windows Live Mail for quite some time, it gave me an error code 0x80041161. This Windows Live Mail error can have several different reasons, like corrupt files or services that aren’t started, not easing the task of identifying the cause. Read on to learn how to fix this Windows Live Mail error 0x80041161…
Silently deploy applications through Windows Deployment Services (WDS) / Microsoft Deployment Workbench, or the command line. Sometimes you just can’t find the correct command parameter – or switch – for silent, unattended software installations. Unattended, silent installation of software is ideal in an automated deployment installation of Windows Server or Windows 7, 8 & 8.1 client computers, through Windows Deployment Services (WDS).
As you’ve probably read in my post AppCmd introduction and examples, AppCmd is a very extensive tool to administer Windows Server IIS hosting environments. Therefore, now a bit more about a common error message you might get using Failed Request Tracing: LOG_FILE_MAX_SIZE_TRUNCATE.
Welcome at Sysadmins of the North! Here I write about IT stuff that I find interesting, problems I encountered and solved, etc. Topics include computer, server, web, sysadmin, MySQL, database, virtualization, optimization and security. Most blog posts are written in English, some older ones in Dutch.
For the most part, I write as it comes; posts may seem incoherently written sometimes (my apologies ;-) ).