Articles by aziods
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Linux Namespaces
Author: aziods •
Tags: debian •
Comments: 0 Starting from kernel 2.6.24, Linux supports 6 different types of namespaces. Namespaces are useful in creating processes that are more isolated from the rest of the system, without needing to use full low level virtualization technology.
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Simple Hard Drive Data Recovery
Author: aziods •
Tags: linux •
Comments: 0 Simple Hard Drive Data Recovery After a recent brush with hard drive failure, I wanted to put together a HOWTO on how to mirror a hard drive, ignoring errors under Linux. It is critical to ensure that these commands are issued correctly, and that the right drive and device names are used. dd offers no prompting and confirmation - use with caution!
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Debian Wheezy: Split and resize Xen disk image
Author: aziods •
Tags: debian, linux, virtualization •
Comments: 0 Background One of my Xen virtual servers needed to have its 400G disk split and resized over the weekend, and I wanted to keep downtime to a minimal. The disk had 240G used, 235G of which was a /backup directory, and the remaining 5G dedicated to a regular Debian Linux installation. I wanted to split the disk into a two disks - a 20GB disk containing the Linux system, and a 300G disk to mount as /backup. Then I could apply my DRBD setup to replicate that 300G backup partition to a separate 2nd backup machine.
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Installing and using Tundeep for network tunnelling and testing on Debian
Author: aziods •
Tags: debian, security •
Comments: 0 Installing and using Tundeep for network tunnelling and testing on Debian Tundeep is a network tunnelling daemon written in C that runs in userspace using libpcap. Tundeep is used as a security testing tool allowing a tester to tunnel through the target network at layer 2. A TAP interface will be brought up on the tester's machine for each level of the network allowing direct interaction with hosts on the network segment through a compromised client device.
