virtuelle Server unter Linux erstellen (OpenVZ) - TheTutorial.de (überarbeitet)







Link zum Tutorial: blog.thetutorial.de Virtualisierungen (Theorie): www.youtube.com vServer werden heute immer öfter verwendet, da sie praktisch nicht von physikalischen Servern zu unterscheiden sind. Ein virtueller Server besteht nicht aus Hardware, sondern aus Software, demzufolge können auf einem physischen Computer gleichzeitig mehrere virtuelle Maschinen "gehostet" (betrieben) werden. Zudem sind vServer im Vergleich zu dedizierten Servern preisgünstiger. 1.) Installation der virtualisierungs Software OpenVZ Wenn man auf einem Linux-System einen virtuellen Linux Server installieren will, dann ist man meiner Meinung nach mit OpenVZ gut beholfen. apt-get install linux-image-openvz-686 iproute libatm1 rsync vzctl vzquota Diese Kommando-Zeile wird den aktuellsten OpenVZ Kernel und alle benötigten Pakete installieren. Nachdem wir nun alle notwendigen Pakete installiert haben, starten wir den Server neu, damit der neuinstallierte Kernel geladen werden kann. reboot Nach einem erfolgreichen Neustart des Systems prüfen wir, ob der Kernel auch geladen wurde: uname -r Bei einer Rückgabe von beispielsweise "2.6.32-5-openvz-686″ wurde der Kernel erfolgreich installiert und geladen. Damit ist die Installation erfolgreich abgeschlossen :) 2.) Konfiguration Nun wüssen wir in der Datei /etc/sysctl.conf folgenden Text hinzufügen: # On Hardware Node we generally need # packet forwarding enabled and proxy arp disabled net.ipv4.conf.default.forwarding=1 net.ipv4.conf.default.proxy_arp=0 ...
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When using the IP protocol at some stage you are going to have to perform some troubleshooting. This video looks at the different tools available and how to use them in both IPv4 and IPv6. Troubleshooting tools List here are a lot of troubleshooting tools that can be used to troubleshooting network and IP related problems. A lot of these commands support the -4 and -6 switches. This forces the command to only use IPv4 or IPv6. IPConfig The ipconfig tool provides general information about the adapters in your system. Without any arguments it will give you the IP address of your computer, subnet mask and gateway. There are also additional switches which will give you a lot more information. IPConfig /all This will give you extended information about the network adapter. This includes information like DHCP information, MAC address and DNS servers. IPConfig /release Will give back an IP Address that was obtained from a DHCP server. IPConfig /renew This command will request a IP address of the local DHCP server or renew a IP address leases that has already been obtained. IPConfig /flushdns Any host that you look at using a DNS server will be cached on the local computer. The flush DNS switch will flush these records out from the local cache. IPConfig /registerdns This is used with dynamic DNS it registered the hostname of the computer with the DNS server. Ping command The ping command sends a packet to anther computer or device. The computer or device if configured to do so ...


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