Monatsarchiv: Januar 2014

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Ping all hosts in network

Untitled Blog Post Name If you want to ping all hosts in a network, you should use the following command: nmap -sn 192.168.1.0/24

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Mount a temporary ram partition

Untitled Blog Post Name With this simple snippet you can mount a temporary ram partition: ( Be careful – please check if you’re having enough ramspace free ) mount -t tmpfs tmpfs /mnt -o...

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rkhunter

I want to introduce rkhunter – a very useful tool for protecting your server (Debian/Ubuntu). apt-get install rkhunter   After that,  you should open the configfile with your preferred editor: vi /etc/rkhunter.conf   Please...

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How to secure a Debian Server

Untitled Blog Post Name I just want to show you some tools/methods for securing your Debian/Ubuntu-server. Secure your SSH-login (please open /etc/ssh/sshd_config): – forbid root-login PermitRootLogin no – only allow SSH-login with SSH-key (no...