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February 01 2015

April 04 2014

February 06 2014

January 31 2014

September 03 2013

May 10 2013

April 07 2012

March 14 2012

dannyman.toldme.com : Ubuntu: Re-install All Packages

dpkg --get-selections * | awk '{print $1}' | xargs -l1 aptitude reinstall
Tags: linux ubuntu

March 11 2012

May 17 2011

September 15 2010

/bin/bash - Treffpunkt für Linux-Shelluser

Diese Website soll keine Website nur für Bash- oder generell Unix-Shell-Experten sein. Genausowenig ist diese Website vornehmlich nur für Unix-Serveradministratoren gedacht. Vielmehr möchte ich hier dem Linuxneuling und Anfänger, der auf einem Linuxdesktop mit grafischer Oberfläche arbeitet, die Shell, also die Textkonsole von Linux mit ihren Vorzügen vorstellen.
Tags: shell bash linux

August 18 2009

Backing up hard disks and hard disk partitions

It's often useful to make an image of either an entire hard disk or an entire partition. One reason is to duplicate an installed system onto another PC (probably over a network connection); another is to make a backup of your complete hard disk including every aspect of the installed operating systems, which you can restore if you have to replace your hard disk or if you screw things up. Typically it's useful to be able to transfer these images over the network to another machine, although you may want to save images onto a different partition or hard disk.

Backup laufender domUs per LVM-Snapshot [openQRM-WIKI]

Wie versprochen die „Eierlegende-Wollmilch-Sau“-Lösung für das Backup von laufenden XEN-Instanzen. Ein grundlegendes Problem ist das Backup im laufenden Betrieb. Noch während das Backup läuft, verändern laufende Prozesse Dateien. Im Allgemeinen ist die /var-Partition und im Besonderen sind Datenbanken und Mailqueues problematisch - ebenso laufende Virtualisierungs-Instanzen (XEN). Man kann sich nie sicher sein, ob der Stand im Backup wirklich konsistent ist.

August 17 2009

etbe: SE Linux on Debian in 5 minutes

Following from my 5 minute OSDC talk yesterday on 5 security improvements needed in Linux distributions I gave a 5 minute talk on installing SE Linux on Debian etch.
Tags: security linux

Fail2ban

Fail2ban scans log files like /var/log/pwdfail or /var/log/apache/error_log and bans IP that makes too many password failures. It updates firewall rules to reject the IP address.
Tags: linux security

July 08 2009

SSH ohne Passwort -- eine kurze Anleitung

Die *.pub-Dateien können nun auf den Zielhost kopiert werden und dort an ~/.ssh/authorized_keys angehängt werden: $ ssh-copy-id user@remote-system $ ssh-copy-id -i ~/.ssh/id_rsa.pub user@remote-system $ ssh-copy-id -i ~/.ssh/id_dsa.pub user@remote-system Oder, wenn ssh-copy-id nicht vorhanden ist: $ cat ~/.ssh/*.pub | ssh user@remote-system 'umask 077; cat >>.ssh/authorized_keys'
Tags: ssh linux howto

June 22 2009

Palm Pre review

Epic-length, wonderfully detailed review of the Pre by Joshua Topolsky, including substantial looks at all of the Pre’s major built-in app…
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