Friday, June 9, 2017

Your connection is not private - Chromium_Ubuntu

Your connection is not private
Attackers might be trying to steal your information from (for example, passwords, messages, or credit cards). NET::ERR_CERT_WEAK_SIGNATURE_ALGORITHM

To resolve the issue in Ubuntu OS through install the Network Security Service libraries package through terminal and restart the Desktop.
sudo apt-get install libnss3-1d

Wednesday, May 17, 2017

Wannacry Ransomware fixes from Microsoft.

Do update ASAP and share with others.

Windows XP SP3 

Windows Vista x86 

Windows Vista x64 

Windows 7 x64 

Windows 7 x86 

Windows 8 

Windows 8.1 

Windows 10 

Windows 2003 x86 

Windows 2003 x64 

Windows 2008 

Windows 2008R2 

Windows 2012 

Windows 2012R2 

Windows 2016

Friday, April 28, 2017

Error: Unable to find ssh binary [code 0x00000436]

Error shows while try to join a Ubuntu 15.04 LTS OS loaded computer to the Windows domain, and its resolved through following steps.

sudo apt-get remove openssh-client (It only removes ssh client package)
sudo apt-get update
sudo apt-get install openssh-server.

Error details:
Unable to find ssh binary [code 0x00000436]

A sshd config file was at {nowhere}, and a sshd binary file was found at
{nowhere}. Exactly one config file and one binary must exist on the system in a
standard location. Uninstall any unused copies of ssh.
Please see the documentation related to sshd configuration options required and
re-attempt the join with "domainjoin-cli join/leave --disable ssh

Thursday, July 21, 2016

Remove Guest Session From Ubuntu 14.04 Login Screen

Press Ctrl+Alt+T on keyboard to open the terminal. When it opens, run the command below to edit the config file:

Open /etc/lightdm/lightdm.conf file from your terminal using the following command:

sudo -H gedit /etc/lightdm/lightdm.conf

If the file exists, then just add the following line:


Save the file and exit the editor. Reboot your system,

Friday, July 1, 2016

How to disable automatic remote printer installation in Ubuntu

Press Ctrl + Alt + T to open the terminal 

1. Modify the cupsd.conf (/etc/cups/cupsd.conf) file through add the below mentioned 

Browsing Off
BrowseLocalProtocols none

2. and also add the below mentioned contents in cups-browsed.conf (/etc/cups/cups-browsed.conf) 

BrowseProtocols none

after rebooting the desktop there is no automatically added remote printers visible except
those which we have added manually.

Friday, October 16, 2015

How to disable Ubuntu’s Guest Session

Guest Session - which anyone can log into to the desktop through Guest session – no password required. If you'd restrict access to your computer, 

Ubuntu doesn’t expose an easy option to disable this feature. If you poke around the User Accounts configuration tool, where you might expect to find such an option, you won’t find one. To disable it, we’ll have to edit lightdm.conf, which controls the LightDM display manager (login screen)’s settings.
Open LightDM’s configuration file in a text editor through entering the following commands in Terminal (Ctrl+Alt+T), 

sudo gksu gedit /etc/lightdm/lightdm.conf

You’ll be prompted to enter your password. After you do, it shows contents of the file.

if it is not shows just copy and paste it.

after that add the following line to the end of the file, in the [SeatDefaults] section:


Save the file after adding the line.The changes will take effect when you restart your computer. 

Friday, September 25, 2015

Ubuntu Domain join problem (pbis) - Error: Received error while querying lwsmd. [code 0x00000002

First create a systemd unit file for this service, and then enable it. The following worked for me on Ubuntu 15.04 (upgraded from 14.04) with PBIS 8.2.2.
Create the file lwsmd.service in /lib/systemd/system like this:

nano /lib/systemd/system/lwsmd.service

Here are the contents (paste this in to the file you created above).

Description=BeyondTrust PBIS Service Manager

ExecStart=/opt/pbis/sbin/lwsmd --start-as-daemon
ExecReload=/opt/pbis/bin/lwsm refresh
ExecStop=/opt/pbis/bin/lwsm shutdown
# We want systemd to give lwsmd some time to finish gracefully, but still want
# it to kill lwsmd after TimeoutStopSec if something went wrong during the
# graceful stop. Normally, Systemd sends SIGTERM signal right after the
# ExecStop, which would kill lwsmd. We are sending useless SIGCONT here to give
# lwsmd time to finish.


Once this is done, make a symlink to this file in /etc/systemd/system:

cd /etc/systemd/system
ln -s /lib/systemd/system/lwsmd.service

At this point you should be able to type:

service lwsmd status

and see that the service exists and is enabled.
Then typing:

service lwsmd start

should start it up and have pbis working as expected.
Now to make it work at boot time. Enable the service with this command:

systemctl enable lwsmd.service

It should give some feedback about creating some symlinks.

Then reboot your computer and all should be working.