Kategorie: Security Infos

Linux: Perfect Secure Travel Laptop

If you want to Travel to other Countries (Border-Control), you should know some things: Buy a older Acer Laptop with Micro SSD Harddisk and SATA CDROM Slot Buy a SATA CDROM Adaptor for 10$, open the Laptop and remove the SATA Drive put it into the SATA Adaptor Don’t put Screws into the Laptop to […]

Linux: Raise Security Level by removing Software

If you use Linux you should monthly check which Software you haven’t used last weeks. Background: Every additional Software put Load on your PC Every additional Software uses libraries which can be affected by zero day exploits The Developers doesn’t know all bugs of their dependencies Third parity Software parts like „Github“ or „PPA-Sources“ they […]

Linux Security: create, mount, lock Luks Encrypted Container Files

Howto create encrypted Container Files for private Photos? REMARKS: EVERY unlocked and active mounted Luks Drive could be read out by attackers! Use long Passwords for Luks! dismount and LOCK unused luks drives/containers if NOT used! Create and mount Script: #!/bin/bash # Script creates 4GB Encrypted File Container, set Password # and mount it to […]

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 […]

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 […]

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: […]

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): blocker.sh # www.linuxonlinehelp.com 2019 # DNS Blocker for Small Linux with dnsmasq # #!/bin/bash # goto tmp (tmpfs) cd /tmp/ # get URL-Blocklists wget -O blocklist.txt https://v.firebog.net/hosts/Kowabit.txt […]

Briar decentralized Peer to Peer Messenger

If you have used Whatsapp, Facebook Messenger, Telegram etc. last time and other Messenger, you perhaps now looking for a more secure Messenger, thats the point to Test Briar Messenger a Peer to Peer Messenger which uses NO SERVER as INTERFACE ! Source: briarproject.org Download-APK ..kick your old Messenger  from the Phone !!  

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 pi-hole.net 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 […]

Android Cleanup NonRoot

If you use a Android Phone you should cleanup by Reset every 6 Month: Remove of Background Apps Remove blown up Updates Remove unused Apps Disable unused Apps preinstalled Raise Security Raise Privacy Reduce burned Bandwith from App Homecalls Use Siteload to reinstall LESS Apps Use Browser against Apps ! Reduce Backlinks of Apps to […]

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