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Ubuntu has released a security notice for exim4 today. That affects these versions:

  • Ubuntu 17.04
  • Ubuntu 16.10
  • Ubuntu 16.04 LTS
  • Ubuntu 14.04 LTS

This vulnerability is for an issue in exim where it could be made to run programs as an administrator. This was because Exim did not properly deallocate memory when processing certain command line arguments. Local attackers could use that along with other vulnerabilities that could possibly allow arbitrary code to be executed and could allow administrative privileges.

You will want to ensure that you update that package using the ‘apt-get upgrade exim4’ command or that it is updated to one of these packages:

Ubuntu 17.04:
exim4-daemon-heavy 4.88-5ubuntu1.1
exim4-daemon-light 4.88-5ubuntu1.1

Ubuntu 16.10:
exim4-daemon-heavy 4.87-3ubuntu1.2
exim4-daemon-light 4.87-3ubuntu1.2

Ubuntu 16.04 LTS:
exim4-daemon-heavy 4.86.2-2ubuntu2.2
exim4-daemon-light 4.86.2-2ubuntu2.2

Ubuntu 14.04 LTS:
exim4-daemon-heavy 4.82-3ubuntu2.3
exim4-daemon-light 4.82-3ubuntu2.3

More information on that can be found here as well:

Ubuntu Security Notice USN-3322-1

June 19th, 2017

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Using one of the many versions of Ubuntu but want to use a different window manager than the one it came with? This can be done quickly and easily by installing the window manager you wish to use and logging out and back in. Sound simple enough? It is.

To install your new window manager you can use the following commands through a terminal.

For LXDE

sudo apt-get install lxde

for XFCE

sudo apt-get install xubuntu-desktop

for Gnome

sudo add-apt-repository ppa:gnome3-team/gnome3

sudo apt-get update

sudo apt-get install gnome-shell

For KDE

sudo apt-get install kde-plasma-desktop

Once you install the one you want, log out, choose the one you want by clicking the icon next to your username, and log in.
ubuntu-login

 

 

 

 

 

 

 

 

 

No sound after rebooting into XFCE or other window manager read No Sound After Installing XFCE/Xubuntu

October 23rd, 2013

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In recent versions of Ubuntu popup notifications have been added keeping you aware of software and system activity. As great as it sounds to be constantly updated with this information it can get very annoying if you are running peer 2 peer software or other highly active software. In cases such as this popup notifications  just get in the way and become annoying. Unfortunately there is no option to disable these notifications with in the system settings.

Not to worry though there is a simple way to disable these popup notifications which I have included below how to disable popup notifications for each branch of ubuntu that is available.

Ubuntu 10.xx +
sudo apt-get remove notification-daemon

Xubuntu
sudo apt-get remove xfce4-notifyd
or
if you only want to disable the notifications
sudo mv /usr/share/dbus-1/services/org.xfce.xfce4-notifyd.Notifications.service /usr/share/dbus-1/services/org.xfce.xfce4-notifyd.Notifications.service.disabled

Kubuntu
sudo apt-get remove notify-osd
or to disable
sudo mv /usr/share/dbus-1/services/org.freedesktop.Notifications.service /usr/share/dbus-1/services/org.freedesktop.Notifications.service.disabled

Lubuntu
sudo apt-get remove notify-osd
or to disable
sudo mv /usr/share/dbus-1/services/org.freedesktop.Notifications.service /usr/share/dbus-1/services/org.freedesktop.Notifications.service.disabled

October 12th, 2013

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If you are a gamer and play most of your games on a laptop running Ubuntu 11.xx + you might have run into the same issues I have regarding keyboard hot keys by accidentally hitting the super key(windows key) causing your game to minimize or behave in a less then preferable way.

The solution to this is to disable the super key (windows key) using compiz.

  1. Install the compizconfig-settings-managerInstall compizconfig-settings-manager package.
  2. Hit Alt+F2, type about:config and hit Enter to open the Unity configuration.
  3. Change or disable the shortcut for Key to show the launcher as you like to free your Super key:compiz
    compiz2 By selecting the super key(windows key) you can effectively disable it or change the key combination that is used to open the program launcher.

 

 

October 9th, 2013

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hide launch bar

If you are using Ubuntu 11.xx or greater you are familiar with Unity and it’s launch bar. Some times this bar can just be in the way or become annoying taking up desktop real estate. Luckily hiding this sucker is a snap.

hide launch bar From the launch bar open “System settings”, then select “appearance” and finally select the “Behaviour” tab. From here set “Auto-hide the launcher” to “on” and set the desired sensitivity. The sensitivity is how much you will have to roll your cursor over the reveal area to make the launcher pop out.

 

October 9th, 2013

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Having trouble with sound not playing properly (sounding garbled or staticy) or have no sound at all when using wine? There are two  solutions which should resolve this issue for you quickly.

The first is using winetricks to change your sound driver to ASLA rather than using the default pulse audio drivers.

winetricksFrom the application launcher open winetricks, if you do not have winetricks installed you can do so quickly using the ubuntu software center or the SynapticPackage Manager.

 

 

 

 

defaultOnce you have opened winetricks select the default prefix or the prefix of whichever virtual instance you are having sound issues with.

 

 

 

 

changesettingsOnce you have selected the prefix you need to change select “change settings” from the menu and a list of configurable settings will be displayed.

 

 

 

 

alsaOnce the settings menu comes up you are going to scroll down until you find the setting “sound=alsa” select this and click “Ok”. Your sound should now be working and clear.

 

 

 

 

Another way to resolve this sound issue is to install ia32-libs and ia32-libs-multiarch through synaptic package manager. These two packages will also update a number of packages relating to pulse sound. Once you have installed these packages you will need to reboot to load the new libraries. It is important that you reboot and not just log out. Logging out will not load the updated libraries.

Once rebooted your sound should be working properly in wine.

October 9th, 2013

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If you are new to Ubuntu or you recently upgraded your installation to 11.xx or higher you will notice that the system monitors you are familiar with are not compatible with new desktop. No worries though, there are a number of monitors available going by the name of “Indicators”, these tools will embed into your unity tool bar much the same way that your previous monitors had.

General System Monitor:

monitor You can install this indicator by using the following commands or by searching for “multiload” from the Ubuntu Software Center

sudo apt-get install indicator-multiload

or from the ppa repository:

sudo add-apt-repository ppa:indicator-multiload/stable-daily
sudo apt-get update
sudo apt-get install indicator-multiload

This indicator is a port of the original System Monitor GNOME Panel applet (gnome-system-monitor applet).
and provides monitoring for the following Network, memory and cpu usage.

August 16th, 2013

Posted In: General, How To

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How do I find out CPU Information such as speed, processor, and cache on Linux operating systems?

You can get information about your CPU by using the following command in a terminal window.

cat /proc/cpuinfo

Sample output:processor       : 0
vendor_id       : AuthenticAMD
cpu family      : 20
model           : 2
model name      : AMD E-300 APU with Radeon(tm) HD Graphics
stepping        : 0
microcode       : 0x500010d
cpu MHz         : 780.000
cache size      : 512 KB
physical id     : 0
siblings        : 2
core id         : 0
cpu cores       : 2
apicid          : 0
initial apicid  : 0
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 6
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm constant_tsc nonstop_tsc extd_apicid aperfmperf pni monitor ssse3 cx16 popcnt lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch ibs skinit wdt arat npt lbrv svm_lock nrip_save pausefilter
bogomips        : 2595.34
clflush size    : 64
cache_alignment : 64
address sizes   : 36 bits physical, 48 bits virtual
power management: ts ttp tm stc 100mhzsteps hwpstate

August 16th, 2013

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Linux up until the past few years has been left out of the emulators market as far as availability luckily this has change and now there are ports of almost every major system emulator including some emulators that are written strictly for the linux operating system, the following site has a nearly complete list of all emulators that are available through the Ubuntu package manager and what repository they are in, The site is also slowly adding source files that can be compiled on any other linux distribution.

The list: http://retro-gaming-world.com/emulators-for-ubuntu/

April 23rd, 2013

Posted In: General, VIdeo Games

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