After I’ve created my home server I’ve tried to change it’s host name by going to /etc/sysconfig/network. For my surprise it was empty. Then I’ve recalled that in version 7 CentOS started using systemd. Hence the location changed. New place …
CentOS 7 is out and I wanted to test it on real hardware. Unfortunately most of current methods to transfer bootable ISO to USB key in MS windows environment do not work (see quote below) or boots, but does not …
How to create bootable USB key for CentOS 7 installation Read more »
In case you need to disable IPv6 and cannot afford to restart here are the commands to quickly do it for CentOS: echo “net.ipv6.conf.default.disable_ipv6 = 1” >> /etc/sysctl.conf echo “net.ipv6.conf.all.disable_ipv6 = 1” >> /etc/sysctl.conf sysctl -p
Today (May 21 2014) UBCD version 5.3.0 is released and available for download. Here are the changes: Updated ASTRA to V6.14. Updated Intel Processor Identification Utility to V4.90. Updated Memtest86 to V4.3.7. Updated Super Grub2 Disk to V2.00s2. Details could …
From today we are mirroring UBCD iso download. For those who are not familiar UBCD stands for Ultimate Boot CD and it is collection of Open Source and freeware tools that could be used to troubleshoot or fix issues with …
In some of my projects I use OpenVZ to create containers. One of the tools I use to create backup of running container is vzdump from proxmox.com. Unfortunately rpm provided is older version and latest provided only as debian package. …
Oracle VM VirtualBox is a virtualization software package. It is really useful to run several OS simultaneously. And great educational tool. One useful feature not enabled by default is possibility to copy/paste between host and guest (also called shared clipboard). …
Recently I’ve decided that even some people think that C programming language is old and obsolete it still worth be be learned. While learning I’ve frequently consulted information about different commands. As consequence I’ve created small C cheat sheet that …
Source: xkcd
GNU Screen is excellent sysadmin tool and can make your life much easier. If working on remote ssh shell and connection is interrupted (usually at worst time) I often wish that I’ve started screen in advance. Other useful way of …