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follow the guide and you can specify in the command option which backend to use when running cairo-dock by specifying it as an option. Run with OpenGL backend Run with Cario backend |
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While the dock is running, right click on the dock. In the drop down menu there’s an option to start cairo-dock on startup. Select it. Done. |
jerome ALL=(ALL) NOPASSWD: ALL It must be at the end of the file. In my version, the last line of code gives all users in the admin group root access but with a password required. If your line precedes this, then the effects are undone by the last line of code because my user login is also a member (unintentional) of admin.
/etc/xdg/autostart/screensaver.desktop
[Desktop Entry]
Name=Screensaver
Type=Application
Exec=xscreensaver -nosplash
http://www.webupd8.org/2012/04/things-to-tweak-after-installing-ubuntu.html
sudo add-apt-repository ppa:indicator-multiload/stable-daily
sudo apt-get update
sudo apt-get install indicator-multiloadhttp://www.noobslab.com/2013/10/tweaksthings-to-do-after-install-of.html
sudo apt-get install unity-tweak-tool gnome-tweak-tool
To remove white dots, enter following commands in Terminal:
sudo xhost +SI:localuser:lightdm
sudo su lightdm -s /bin/bash
gsettings set com.canonical.unity-greeter draw-grid false
To remove guest account open Terminal and enter following command:
echo allow-guest=false | sudo tee -a /etc/lightdm/lightdm.conf.d/50-unity-greeter.conf
To remove Remote login open Terminal and enter following command:
echo greeter-show-remote-login=false | sudo tee -a /etc/lightdm/lightdm.conf.d/50-unity-greeter.conf
Enter following command in terminal to disable overlay scrollbar:
gsettings set com.canonical.desktop.interface scrollbar-mode normal
If you want to get back overlay bar, enter following command:
gsettings reset com.canonical.desktop.interface scrollbar-mode
Enter following commands to disable crash reports:
sudo gedit /etc/default/apport
Now text file will open, In the last line you will see “enabled=1” change it to “enabled=0“. Save and close file.
Now enter following command in terminal to stop apport service:
sudo service apport stop
Enter following command to move buttons to right:
gsettings set org.gnome.desktop.wm.preferences button-layout ‘:minimize,maximize,close’
sudo apt-get install qbittorrent
Enter following commands to install plugins for Rhythmbox
sudo add-apt-repository ppa:fossfreedom/rhythmbox-plugins
sudo apt-get update
sudo apt-get install rhythmbox-plugin-complete
There are some Restricted extras in Ubuntu which can’t be install while installation of Ubuntu by default but you can install these Restricted extras by yourself. Restricted mp3 playback and decoding, support for various formats, fonts, java, flash plugin, lame, dvd playback.
sudo apt-get install ubuntu-restricted-extras
sudo apt-get install p7zip-rar p7zip-full unace unrar zip unzip sharutils rar uudeview mpack arj cabextract file-roller
sudo apt-get remove gnome-screensaver
sudo apt-get install gnome-core
sudo apt-get install dconf-tools
dconf reset -f /org/compiz/
setsid unity
unity –reset-icons
ALT + C – cd do katalogu
CTRL+o – podgląd teminala
ESC + TAB – autouzupełnianie komend
CTRL + strzałka w górę/dół – przeglądanie historii
ALT+s – incsearch
CTRL + \ – lista szybkich katalogów
Ctrl + / i potem / – katalogi
CTRL + M – kopiuje daną nazwę do linii komend
| Common Functions | |
| Ctrl + r | Refresh active panel |
| Ctrl + x c | Opens chmod dialog for marked file |
| Ctrl + x o | Opens chown dialog for marked file |
| Alt + ? | Opens search dialog |
| Ctrl-x a | Open VFS list. If a ftp session times out, you can use this to free the open vfs so you can log in again. |
| Panel Functions | |
| TAB | Switch focus between left and right panel |
| Insert | Marks or removes mark on file(s) |
| Alt + g | Marks first file or directory in active panel |
| Alt + r | Marks middle file or directory in active panel |
| Alt + j | Marks last file or directory in active panel |
| Alt + s | Incremental search |
| Ctrl + / | Look for filename given in last line of active panel (not whole screen), and jumps on first file |
| * | Marks removes marking for all files in active panel (not directories) |
| + (Plus) | Brings up the input box where it can be given regular expression. All files with names that fill condition(s) in regular expression will be marked. |
| \ (Backslash) | Remove marking for more data (opposite to + ) |
| Shell Functions | |
| Alt + Enter | Copies selected filename in command line |
| Ctrl + Shft + Enter | Copies full path of selected file in the command line |
| Alt + H | Shows command line history |
| Function Keys | |
| F1 | Help |
| F2 | Opens user menu |
| F3 | View selected file content |
| F4 | Opens file in internal text editor |
| F5 | Copies selected file. Default is to another panel, but it asks first. |
| F6 | Moving file. Default is to another panel, but it asks first. |
| F7 | Make directory. |
| F8 | Delete file or directory. |
| F9 | Opens main menu at the top of the screen. |
| F10 | Ends current action; editor, viewer, dialog window or ends mc program. |
vgscan
lvmdiskscan
lvdisplay
parted /dev/sda print
Podmontowanie:
vgchange -a y
mount /dev/volumegroup/logicalvolume /mnt/somewhere
service iptables stop
service iptables start
service iptables save
iptables-save > /etc/sysconfig/iptables
iptables -I INPUT 5 -p tcp –dport 443 -j ACCEPT
iptables -L -n –line-numbers
czasowe wyłączenie
setenforce 0
setenforce 1
lub
echo 0 >/selinux/enforce newrole -r sysadm_r echo 1 >/selinux/enforce cat /selinux/enforce SSH key authentication problem: Turns out that SELinux was interfering with the key authentication because there was no security context for the newly created~/.sshdirectory. The fix:restorecon -R -v /root/.ssh
http://blog.inticol.com/2012/10/installing-xfce-on-centos-6.html
yum install wget
wget http://download.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm rpm -ivh epel-release-6.8.noarch.rpm
yum groupinstall Xfce
yum install xorg-x11-fonts-Type1 xorg-x11-fonts-misc
/sbin/telinit 5
startxfce4
/etc/DIR_COLORS
cp /etc/DIR_COLORS ~/.dircolors
To customized colors you must use special string combination:
FILE-TYPE Attribute codes: Text color codes:Background color codes
Where,
For example to define Bold Blue color for DIR file type, entry should look as follows:
DIR 01;34
http://www.cyberciti.biz/tips/where-is-color-of-ls-command-defined.html
vpnc – -natt-mode none vpnc.conf
vpnc.conf:
IPSec gateway 111.111.111.111
IPSec ID login_vpn
IPSec secret haslo
Xauth username login
openvpn – -config openvpn.ovpn
openvpn.conf
dev tun
tls-client
remote 111.111.111.111 7777
# If redirect-gateway is enabled, the client will redirect it’s
# default network gateway through the VPN.
# It means the VPN connection will firstly connect to the VPN Server
# and then to the internet.
# (Please refer to the manual of OpenVPN for more information.)
#redirect-gateway
pull
proto udp
script-security 2
ca ca.crt
comp-lzo
reneg-sec 0
auth-user-pass
You should never add the file with the contents starting with -----BEGIN RSA PRIVATE KEY-----, that’s your private key. You must put the public key in the ~/.ssh/authorized_keys file.
This public key has the .pub extension when generated using ssh-keygen and the contents of the public key begins with ssh-rsa AAAA3B
The permissions of ~/.ssh on the server should be 700. ~/.ssh/authorized_keys on the server are supposed to be set to 600. The permissions of the key on the client-side should be 600.
If the private key was not protected with a password and you put it on the server, I recommend you generating a new one using:
ssh-keygen -t rsa
You can skip this if you’re fully sure that nobody can recover the deleted private key on the server.
If this does not help, run ssh with options for more verbosity:
ssh -vvv user@example.com
On the server side, you can review /var/log/auth.log for details.
Mamy RPMa i chcemy go zainstalować. Używamy komendy:
Parametr -ihv spowoduje zainstalowanie pakietu jeżeli spełnione są wszystkie wymagania, jeżeli nie wyświetlone zostaną brakujące elementy lub inne błędy na jakie trafił instalator. Wersja -Uhv różni się tym od -ihv tym że jeżeli mamy starszą wersję danego programu to zostanie on zaktualizowany (ihv zainstalowałby RPMa jako 2 wersję), jeżeli nie ma to zostanie on standardowo zainstalowany. Wersja -Fhv tylko aktualizuje. Jeżeli nie mamy zainstalowanej starszej wersji to RPM nie zostanie zainstalowany. Usunięcie RPMa przeprowadzamy tak:
| Polecenie | Opis |
| rpm -qip nazwa_pakietu.rpm | Wyświetlone zostaną dane o pakiecie takie jak opis, autor, strona projektu i inne. |
| rpm -q nazwa_aplikacji | To polecenie zwróci numer zainstalowanej wersji aplikacji jeżeli oczywiście jest zainstalowany |
| rpm -qa | Wyświetla listę wszystkich zainstalowanych RPMów wraz z numerem wersji |
| rpm -qai | Wyświetla szczegółowe opisy dla każdego zainstalowanego RPMa |
| rpm -qf /folder/x/plik_lub_folder | Określa nazwę pakietu, którego elementem jest wskazany plik/katalog |
Komenda jest następująca:
Odpalony zostanie pakiet a zawarty w nik kod źródłowy będzie kompilowany. Do tego potrzebne są odpowiednie biblioteki i w przypadku bardziej złożonych programów będziemy musieli je ściągnąć i zainstalować. Instalator powie nam czego brakuje.
Wynik:
/root/rpmbuild/RPMS/x86_64
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:
#ifup eth0Device eth0 does not seem to be present, delaying initialisation |
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:
# rm -f /etc/udev/rules.d/70-persistent-net.rules |
# reboot |
# 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
# service network restart |
SOURCE:
Strona startowa: www.jaceksen.pl