31 May 2017

IPv4 and IPv6

Theory
Here are some pages on which you can get information about IPv6:

  • http://en.wikipedia.org/wiki/IPv6
  • http://www.olympus-zone.net/page_1033_en_Blue.html
  • IPv6 at Xoftmade

    For our facilities, we have the following /32 Netz: 2001:41D0::/32

    For the routing we use Cisco routers 6k (6509 SUP720 card with the native IPv6 packets to route).

    Every customer with a dedicated server at Xoftmade has a fixed IPv4, one or more IpFailover and 18,446,744,073,709,551,616 IPv6 addresses (ie a /64) are attached to the IPv4 server.

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    20 Nov 2014

    6 Linux commands to reboot and shutdown the system

    Linux reboot / shutdown command

    Linux, like all duties, stop and restart operations can also be done from the command line. Orders are shutdown, halt, poweroff, and reboot REISUB strikes.

    In this post I’ll show you how to stop or restart a Linux system using these commands. The controls are most useful when you need to reboot a linux server remotely, where the shell access is available and no GUI. Servers often require a reboot upgrades are installed or need to stop other tasks Maintenance.

    Commands are available on a Linux system like Ubuntu, CentOS, Debian, Fedora or SUSE and do not require installation of any additional packages.
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    20 Nov 2014

    Linux mail command examples, how to send mails from command line

    To send and receive e-mails that we are accustomed to Web-based services such as Gmail, Yahoo etc or desktop-based email clients. However, on Linux, you can easily send / receive emails from the command line as well. This is useful in situations such as sending mail from shell scripts or other type of program.

    This tutorial explains how to use the mail command on linux for sending and receiving mails.

    Send mails

    Depending on your linux distribution, you may need to install additional packages like mailutils to get the mail command to work.
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    20 Nov 2014

    6 commands to check cpu information on Linux

    The processor information includes details about the processor, such as architecture, the vendor name, model, number of cores, the speed of each core, etc. There are quite a few commands on Linux for details on the processor hardware, and here is a brief on some orders.

    /proc/cpuinfo

    The /proc/cpuinfo file contains details about individual cpu cores. Output its contents with less or cat.
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