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at run jobs queued for later execution at examples run today or tomorrow, if it is past 16:45 now: at 16:45 ~/script/blubb close with <ctrl><d> be more specific, schedule on March 28th at 8 pm: at 20:00 march 28 view the queue: atq 2 Thu Mar 28 08:00:00 2013 a root
Backup How would you like to backup your Linux and Windows machines? There's a huge amount of available backupsoftware. Which one fits best? Well, that depends. I prefer it simple and I want full control. No proprietary fileformats, no packed archives, no tapes and no clumsy , , ,
CentOS (RHEL/Fedora) Extra repositories: * <http://fedoraproject.org/wiki/EPEL> CentOS EOL What is the support end of life for each CentOS release? See <http://wiki.centos.org/FAQ/General#head-fe8a0be91ee3e7dea812e8694491e1dde5b75e6d> Release Infos * CentOS 6 Packages * CentOS Release Notes Some “more in depth” pages: centos index centos RHEL EOL end of life for RHEL: See <https://access.redhat.com/support/policy/updates/errata/> centos rhel linux , ,
chroot Steps I had to do running an Ubuntu Rescue System to chroot into a dysfunctional Debian Wheezy (didn't want to boot anymore). # prepare mount points mkdir -p /media/rotten mount /dev/sda3 /media/rotten mount /dev/sda1 /media/rotten/boot mount -o bind /dev /media/rotten/dev mount -o bind /sys /media/rotten/sys mount -t proc /proc /media/rotten/proc # go! chroot /media/rotten /bin/bash
Debian GNU/Linux Some hints which don't fit elsewere at the moment :-) _sudZUZ#Z#XZo=_ DDDD EEEEEE BBBB IIIIII AAAA NN NN _jmZZ2!!~---~!!X##wa DD DD EE BB BB II AA AA NNN NN .<wdP~~ -!YZL, DD DD EEEEE BBBBB II AAAAAA NNNN NN .mX2' _%aaa__ XZ[. DD DD EE BB BB II AA AA NN NNNN oZ[ _jdXY!~?S#wa ]Xb; DDDD EEEEEE BBBBB IIIIII AA AA NN NN _#e' .]X2( ~Xw| )XXc ..2Z` … ,
Grub Bootloader Grub and Serial Console see: configure_serial_console_access Grub and RAID 1 To install your bootloader on both parts of a software RAID 1 the following steps have to be performed (after every kernelupdate). Our RAID consists of 2 SATA drives (sda1 and sdb1): ,
Interfaces Example layout of the Debian/Ubuntu /etc/interfaces config file with static IP configuration including additional routing, alias and VLAN details. # This file describes the network interfaces available on your system # and how to activate them. For more information, see interfaces(5). # The loopback network interface auto lo iface lo inet loopback # The LAN network interface auto eth0 allow-hotplug eth0 #iface eth0 inet dhcp iface eth0 inet static address 192.168.2.10 netwo… , ,
Kernel Howto build a custom kernel the debian way: I'm going to build the latest 2.6.x kernel from <http://www.kernel.org>. The actual kernel list: Get the kernel source wget http://www.de.kernel.org/pub/linux/kernel/v2.6/linux-2.6.18.tar.bz2 wget http://www.de.kernel.org/pub/linux/kernel/v2.6/linux-2.6.18.tar.bz2.sign , , ,
Linux Software Raid Howto create, manage, maintain, grow, and finally destroy your linux software raid. Create new raid Create the partition tables on one disk (here sda) and copy the disk layout to the second one (here sdb) (assuming you have two identical SATA-Disks: sda and sdb) , ,
LUKS - Linux Unified Key Setup Encrypted Disk How I set up my external backup drive with encryption. Install # install package apt-get install cryptsetup # partition the drive parted /dev/sde >mklabel gtp >mkpart primary 1 -1 Model: ATA WDC WD40EZRX-00S (scsi) Disk /dev/sde: 4001GB Sector size (logical/physical): 512B/4096B Partition Table: gpt Number Start End Size File system Name Flags 1 1049kB 4001GB 4001GB primary # initialize partition for encr…
LVM - Logical Volume Manager Howto do all the basic LVM tasks you need in every days work: setup, extend, remove, fix and work with snapshots Setup See LVM section of my server setup howto. For large disks use a greater PE (physical extend) than the default of 4M: , ,
Restore Windows Bootloader, Remove Grub If you installed a dual-boot system with Linux and Windows 7, grub is usually the boot manager to handle things. But what if you want to remove Linux? Windows 7 should then obviously boot on it's own, without grub. , ,
Ubuntu Linux Ubuntu is a derivate of Debian Linux. * Ubuntu Release overview as well as EOL (end of life): <https://wiki.ubuntu.com/Releases> * Upgrades: <https://help.ubuntu.com/community/EOLUpgrades> As I don't like Unity at all, I recently checked out two of the available Ubuntu alternatives: * <http://xubuntu.org> * <http://lubuntu.net> Another project I find very interesting is ubuntu index ,
Ubuntu Packagemanagement Because Ubuntu is a derivate of Debian, most or even all of the info provided on Debian packagemanagement applies to Ubuntu, too. PPA What is different for Ubuntu are the Ubuntu Personal Package Archives (PPA). You can add one like so: # install your ppa-helper add-apt-repository sudo apt-get install python-software-properties # add the ppa: sudo add-apt-repository ppa:semiosis/ubuntu-glusterfs-3.3 ,
udev persistent device name How to create an persistent name for a device. My Surfstick HUAWEI E160 should always have a persistent name between boots or in case i do a reconnect. The E160 creates two /dev/ttyUSB? entries, the first one for the modem, the second one for control and status information. ,
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