All
.NET
AD DS
AD FS
Amazon Web Services (AWS)
Atlassian
BGP
Blazor Server
brief
C#
Dell PowerEdge
DevOps
E-Mail
Exchange
Failover Clustering
Fax Server
FreeBSD
General
Google Cloud
Hype-Jargon
Hyper-V
IBM X3650
IEEE 802.11 WLAN
Infrastructure as Code (IaC)
IPv4 | IPv6
Kubernetes
Let's Encrypt
Linux
Microsoft 365 (Office 365)
Microsoft Azure
Microsoft Defender
Microsoft Entra
Microsoft Intune
Microsoft Teams
NFS
OAuth2.0
OpenID Connect
pfSense
Postfix
PostgreSQL
PowerShell
Python
SAML 2.0
SAP
Security
Session Border Controller (SBC)
SLES
SQL Server
Storage
System Center
TLS/SSL
veeam
Visual Studio
VMware vSphere
VPN
Web server
Windows
X.509 PKI
pfSense Boot Loop after Power Outage
A few weeks ago I installed pfSense 2.5.2 on a kettop Mi4005L Mini PC. This Mini PC uses an Aptio...
Apache HTTP Server and .htaccess
In this post I want to summarize some information about securing your Apache websites. This topic is well documented from...
Set up Fail2ban on Ubuntu 20.04.3 LTS
In this post I want to show how to install and use Fail2Ban on Ubuntu. Fail2Ban is an intrusion prevention...
Nikto Web Server Scanner
In this post I want to show how to install and using the nikto command-line vulnerability scanner. Introduction Nikto is...
Set up ModSecurity (Libmodsecurity | ModSecurity v3 project) for Apache on Ubuntu
In this post I will install and configure Libmodsecurity which is a complete rewrite of the ModSecurity platform (aka ModSecurity...
SSH Session Timeout – TCP Keepalive
In case your ssh connection is permanently disconnected in idle state, you can enable TCP-Keepalive either on the ssh server...