Security

TCPdump

tcpdump – Detailed Network Traffic Analysis The tcpdump is simple command that dump traffic on a network. However, you need good understanding of TCP/IP protocol to utilize this tool. For.e.g to display traffic info about DNS, enter: # tcpdump -i eth1 ‘udp port 53’ Bekijk al het verkeer behalve SSH #tcpdump not port 22

Root wachtwoord resetten in Ubuntu 10.04 Lucid Lynx

Root wachtwoord kwijt? Voer de volgende stappen uit om een nieuw root wachtwoord in te stellen Hold the Shift key at boot to display the Grub boot menu. Select the top Grub entry, it will be similar to: Ubuntu, with Linux 2.6.32-22-generic-pae Hit e to edit the the Grub entry. Find the line that looks like this: linux /boot/vmlinuz-2.6.32-22-generic-pae …

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