Robert Penz Blog https://validator.w3.org/feed/docs/rss2.html modsecurity rule to filter CVE-2021-44228/LogJam/Log4Shell [update] Tips / Solutions for settings up OpenVPN on Debian 9 within Proxmox / LCX containers Evolution of the LWZ Monitoring: From Python to ESPHome Howto visualize your water meter and get alerted if too much water is used A security minded guy forced to buy a Wifi enabled cleaning robot Howto install Wireguard in an unprivileged container (Proxmox) Howto install Bitwarden in a LXC container (e.g. Proxmox) QuickTip: Howto secure your Mikrotik/RouterOS Router and specially Winbox Privacy Policy Some VPN providers leak your IPv6 IP address How to configure a Mikrotik router as DHCP-PD Client (Prefix delegation) Beware: Extreme Networks EXOS ships with hidden SNMPv3 default admin user Howto setup a Debian 9 with Proxmox and containers using as few IPv4 and IPv6 addresses as possible How to brute force a MySQL DB HiKam A7 – IoT security at its worst [Update] Implementing IoT securely in your company – Part 3 Implementing IoT securely in your company – Part 1 Implementing IoT securely in your company – Part 2 Mitigating application layer (HTTP(S)) DDOS attacks Proxmox Container with Debian 10 does not work after upgrade WannaCry happened and nobody called me during my vacation – I tell you why 248 days uptime is bad for a Mikrotik running RouterOS below 6.34 Accessing Mikrotik RouterOS via MAC Telnet from a Linux box Unifi upgrade 2.4.6 to 3.2.10: maps not working Spiegel Online uses a 2000 years old cipher for their pay wall Jitsi Workaround for CVE-2021-44228/LogJam/Log4Shell Howto live-sniffer traffic on a remote Linux system with Wireshark Tips on how to provide a secure public WiFi hotspot – Part 3 Ready your home network for IoT Setup Let’s encrypt TLS certificate for Proxmox [Update] Blue Code mobile payment – All show and no substance [3. Update] New RTF macro Malware from the Dridex gang Mobile security apps often leak information via ad network libraries Tips on how to provide a secure public WiFi hotspot – Part 1 Stop panicking about the Locky ransomware [Update 2] Howto setup a redundant and secure BGP (full table) Internet connection with Mikrotik Routers Lock out of possible customers for your online shop by bad HTTPS configuration Mini Howto for a simple way to block a MAC address on Extreme Network switches Block Ransomware botnet C&C traffic with a Mikrotik router Austrian Mobile Phone Signature is vulnerable against phishing and MitM attacks Decoding SNMPv3 encrypted traffic in Wireshark Monitor your email address for data breaches Tips on how to provide a secure public WiFi hotspot – Part 2 Howto configure a TG588 from A1 Telekom as VDSL modem and a Mikrotik device as router My heart misgives me, if I think about them implementing smart meters The insecurity of the building automation system KNX Looking for a way to change an email address and found clear text admin password Howto protect BGP router against DOS and injection attacks Unifi upgrade 2.4.6 to 3.2.10: exception: remove needs a query at src/mongo/shell/collection.js Monitoring a Stiebel Eltron LWZ