ssh -X login@haslo

http://www.softprayog.in/troubleshooting/x-window-remote-display

For years we’ve used bash scripting to ensure that all of our server configurations are standardised, so that we can expect servers with the same role to have the exact same configuration profile and exhibit the exact same behaviour. We’re in the process of moving to Chef but we’re not quite there yet. Recently we decided to redesign our network architecture with a higher level of focus around High Availability. This new design introduces Percona XtraDB Cluster and we’re writing our installation and configuration scripts to ensure that our new cluster boxes are both tuned and standardised.

We have base template linux VM’s in both VMWare and Oracle VirtualBox, and also templates that are specific to server roles such as web servers, HAproxy servers or MySQL Cluster servers. If we need to test a new configuration, or add a new node to the cluster, we just clone the appropriate template add some minor configuration and we’re good.

However if you clone a VMWare or Oracle VirtualBox VM, you’ll notice that it kills your network interfaces throwing errors like the one listed below:

What’s happening here is that when you clone your VM, VirtualBox and VMWare apply a new MAC Address to your network interfaces but they don’t update the linux configuration files to mirror these changes and so the kernel doesn’t firstly can’t find or start the interface that matches it’s configuration (with the old MAC Address) and it finds a new interface (the new MAC Address) that it has no configuration information for. The result is that only your networking service can only start the loopback networking interface and eth0 is dead.

So here’s how we fix it:

1. Remove the kernel’s networking interface rules file so that it can be regenerated

   # rm -f /etc/udev/rules.d/70-persistent-net.rules

2. Restart the VM

   # reboot

3. UPDATE your interface configuration file

   # vim /etc/sysconfig/networking/devices/ifcfg-eth0

   Remove the MACADDR entry or update it to the new MACADDR for the interface (listed in this file: /etc/udev/rules.d/70-persistent-net.rules).

   Remove the UUID entry

   Save and exit the file

4. Restart the networking service

   # service network restart

SOURCE:

http://www.envision-systems.com.au/blog/2012/09/21/fix-eth0-network-interface-when-cloning-redhat-centos-or-scientific-virtual-machines-using-oracle-virtualbox-or-vmware/

yum install aaaaa

yum provides aaaaa

yum search aaaa

yum grouplist | less

Połącz z serwerem:

sftp://user@example.com:22
ftp://user@example.com:21

1. Przejdź na stronę pobierania odtwarzacza Flash na witrynie Adobe.com.
2. Po wyświetleniu monitu, zapisz plik (np. install_flash_player_”wersja”_linux.”procesor”.tar.gz).
3. Na górze okna Firefoksa kliknij menu Plik i wybierz Zakończ
4. Otwórz okno terminala (w Gnome kliknij menu Aplikacje, wybierz Akcesoria i następnie Terminal).
5. W oknie terminala przejdź do katalogu, w którym został zapisany pobrany plik, np. cd /home/user/Downloads.
6. Wyodrębnij libflashplayer.so z pobranego pliku używając polecenia tar -zxvf install_flash_player_”wersja”_linux.”procesor”.tar.gz.
7. Jako administrator skopiuj wyodrębniony plik libflashplayer.so do podkatalogu plugins znajdującym się w katalogu z twoją instalacją Firefoksa. Na przykład, jeśli Firefox jest zainstalowany w /usr/lib/mozilla użyj polecenia sudo cp libflashplayer.so /usr/lib/mozilla/plugins i po wyświetleniu monitu podaj swoje hasło administratora.

Fedora 64 bit: /usr/lib64/mozilla/plugins
chmod 755 libflasplayer.so

check the output of lsmod and look for iwlwifi and iwldvm to see if the module is loaded, if not, you can load it yourself using modprobe -v iwldvm

yum search iwl

you’ll see iwl6000-firmware, iwl6000g2b-firmware, and so on.

lshw – hardware monitor

monitor

xrandr

xrandr –output DVI-1 –right-of DisplayPort-0

MAIL FROM:<God@heaven.af.mil>
     250 ok
     RCPT TO:<angels@heaven.af.mil>
     250 ok
     DATA
     354 ok

     Hi, guys.
     Just testing our new mail system.
     .
     250 Written safely to disk. #902487694.289148.12219.