Category: Security Infos

Apache2 evasive Problems with WordPress

If you use Apache2 / Apache24 and anti-hammering tools like the Modul evasive and security2 as addon fail2ban than you can fail blogging. Problems: Apache2 Module “evasive” must be fine tuned for WordPress go /etc/apache2/ if you use default enabled auto-safe drafts of posts can let you look like a Attacker so disable auto save by wp-config set “define(‘AUTOSAVE_INTERVAL’, 86400);” !! on small systems redis and other cache technics can generate too additional hidden “posts” traffic to the Apache2 & SQL checkout the system by disable all security addons and fine tune settings, if ok enable them again.. try wordpress […]

Major Tools for your IT Systems

A must “USE” in these insecure days: nmap Portscan Tool use nmap -PN IP-Address to check failed Firewall Settings! arp-scan  Network Scan to find active devices iftop to detect traffic and used Ports on a physical network Interface! ps aux  show active processes on a Linux System htop more human friendly Process Monitor iotop human friendly traffic monitor from CPU/RAM to Drives Daily check Error Logs! Use always Firewalls and Disk/File Encryption! Don’t trust Hardware Protection (TPM) Chips most do communicate by clean signals on copper which can be read out by hardware hacking or magnetic fields! NEVER leave Hardware […]

Ubuntu Bug NetworkManager openvpn plugin fails

If you setup Ubuntu 18.04 with openvpn you must install all Network Manager Plugins to run a stable VPN do: sudo apt-get install network-manager-openvpn network-manager-openvpn-gnome network-manager-pptp network-manager-pptp-gnome network-manager network-manager-gnome This fixes dependencies of Plugins to openvpn like pptp and more! The Syslog does not show any informations whats happening! only like this: vpn-connection[ID-XXXX-XXXX-XXXX-XXXX,”vpn”,34:(tun0)]: VPN plugin: failed: connect-failed (1) seen: 2019/10/31

Script DNS Blocker DNSMASQ

If you tested pihole, you perhaps look for a smaller Command Line version? Install dnsmasq by: sudo apt-get install dnsmasq Here DNS Rule Injector Script (copy & paste): # 2019 # DNS Blocker for Small Linux with dnsmasq # #!/bin/bash # goto tmp (tmpfs) cd /tmp/ # get URL-Blocklists wget -O blocklist.txt # get Templates #SET Variables txt='blocklist.txt' IP='' # set to or to a Webserver with "white Page" showing Text "URL-blocked!! #merge URLs and redirect to wanted IP – Rule creation n=1; while read line; do echo 'address=/'$line'/$IP '>> 02-blocked1.conf ; n=$((n+1)); done < $txt […]

Pihole DNS Adblocker

If you have outdated PC’s you can give them a Second Life as DNS Adblocker!   You can get the free Software Package at Don’t buy high priced preinstalled devices on NET cause a lot of the Resellers DONT DONATE the pi-hole Developers Group!!! Advantages: Less Homecalls of all Devices at your Home, like TV’s, Tablets, Phones and more Less Advertisement by Internet Browsing Less Fingerprints on Internet Faster Website Access Live Logview by “pihole -t” shows the Spy’s of your Network Reduce Network Load of all Wifi Routers an Repeaters (MESH LOAD) Reduce Heat and Power Consumption of […]

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