How to use Snagit on Linux? CentOS / Ubuntu / Fedora

Let's be clear - you can't!  But an Amazing alternative does exist!!!

I just stumbled upon Shutter and my initial reaction is WOW this is a great substitute.  Personally I think it might be a bit more useful.  The only downside is its a Linux only solution.

Here is what it can do:

Take screenshots:

• Selected sections of the screen
• Desktop
• Entire Workspaces
• Specific Windows 
• Portions of a window
• Dropdown Menus
• Tool Tips
• Webpages

Once the picture is captured you can 'edit' it with many common features of SnagIt but Shutter also provides additional features like:

• A Censor widget which allows you to hide sensitive data using a privacy masking tool
• An auto-incrementor shape which allows you to easily label sections of the screenshot with numerical icons (e.g. first, second third distinction)
• Pixelize sections of the screen for larger areas of sensorship

Similar to SnagIt - Shutter provides you with Arrows, Rectangles, Lines, HighLighters, Croping, and the ability to run "plugins" which emulate effects like 'drop shadow', watermarks, bezel edges, plus more.

If you are as excited as me then you will want to know how to install Shutter on your Linux Desktop.  Here are the instructions for RHEL/CentOS-7
 

1. Download the latest nux-dextop-release rpm from

   http://li.nux.ro/download/nux/dextop/el7/x86_64/

2. Install nux-dextop-release rpm:

   # rpm -Uvh nux-dextop-release*rpm

3. Install shutter rpm package:

   # yum install shutter

Need to find Shutter for a different Linux Distribution, just follow the link below.  You will need to resolve the nux-dextop-release dependency.

http://rpm.pbone.net/index.php3?stat=3&search=shutter 

Don't forget to checkout hotShot as well, here's a great comparison writeup:

http://www.tutorialgeek.net/2015/06/shutter-vs-hotshots-which-linux.html

SSH stuck on "expecting SSH2_MSG_KEX_ECDH_REPLY" && using openconnect VPN

Just built a brand new virtual deskop using Vagrant & Puppet to automate the install of a CentOS virtual desktop.  My goal is to build automation into the project from the ground up - the only way to truly do this is to scrap and rebuild many times yet I was having a big issue w/ a fundamental requirement.

I needed openconnect installed to VPN into multiple infrastructure nodes.  Unfortunately, I wasn't able to connect to other infrastructure servers (via ssh) and the system was responding w/ a timing out exception.

To gain a better view I enabled verbose ssh output using the "-vvv" parameter and quickly saw the system was stuck at the  "expecting SSH2_MSG_KEX_ECDH_REPLY" phase.

I was fortunate to have a working VM and performed multiple compare & contrasts against settings.  With debugging enabled I was able to see the server was sending a host key over to the client.  On the broken system it was not receiving that key...

After performing a ton of research to resolve the issue I found many mixed results from individuals.  Seems there are a mix of server (router, sshd, etc) and client side configurations that could be changed to optimize the maximum transmission unit value.

Seems lowering the MTU value in the systems: /etc/sysconfig/network-scripts/ifcfg-enp0s3 worked. 

It was timing out @ 1500 yet worked @ 1200

Reference Link

http://www.microhowto.info/howto/persistently_change_the_mtu_of_a_network_interface_on_redhat.html

 New Settings

bash-4.2$ cat /etc/sysconfig/network-scripts/ifcfg-enp0s3
TYPE=Ethernet
BOOTPROTO=dhcp
DEFROUTE=yes
PEERDNS=yes
PEERROUTES=yes
IPV4_FAILURE_FATAL=no
IPV6INIT=yes
IPV6_AUTOCONF=yes
IPV6_DEFROUTE=yes
IPV6_PEERDNS=yes
IPV6_PEERROUTES=yes
IPV6_FAILURE_FATAL=no
NAME=enp0s3
UUID=78140972-c1ee-4220-85af-b67ff1bc3cad
DEVICE=enp0s3
ONBOOT=yes
MTU=1200

How to Shut off ipv6 & enable ipv4 networking in a virtualbox environment

This one's been an annoying feature that I'm going to solution quickly and store for reference.

Here's the problem - No Private network when connected via Bridge Mode due to client network settings.

The goal is to disable ipv6 and enable ipv4, gain a 192.168.1.* address from the local network DHCP server.

Once Complete, I will my port forwarding rules will activate and allow external access to the webserver via http://localhost:8080/ on the host's local web browser.

Solution:
Modify:  /etc/sysctl.conf

net.ipv6.conf.all.disable_ipv6 = 1
net.ipv6.conf.default.disable_ipv6 = 1

then restart your network adapter 

Creating a Linux Launcher for Pentaho Spoon

Reference Article: http://edpflager.com/?p=2322

Main Steps:
1) Create a script which cd's into your pentaho install directory.

•  cd /usr/local/bin/pentaho
• ./spoon.sh

2) Move the script to your desktop folder and change permissions accordingly (chmod 755)
3) Right Click -> Properties -> change Icon (selecting the spoon.png icon from your pentaho install directory.
4) Drag the desktop script to the quick launch task bar to create a new application launcher.
5) Modify icon by following step 3 for the application launcher script.

Useful Tips: Open-Source Visio Alternative on MacBook - Libre Office

Libra Office Extensions:

1. VRT Networks: 
• Computing Icon Extension: http://www.vrt.com.au/downloads/vrt-network-equipment
1. To install extension click on the oxt file and install.  
2. Kill Libre Processes and restart Libre Draw. 
3. leverage new Extensions by looking @ icons in the Theme's folder

Adding Scripts to run at startup

Add the script to the /etc/init.d folder by creating a sym link. Then run the update-rc.d command

lrwxrwxrwx 1 root root 20 2009-07-15 03:28 noip2 -> /usr/local/bin/noip2
cappetta@kubuntu:/etc/init.d$ sudo update-rc.d noip2 defaults



cappetta@kubuntu:/etc/init.d$ sudo update-rc.d noip2 defaults
update-rc.d: warning: /etc/init.d/noip2 missing LSB information
update-rc.d: see
Adding system startup for /etc/init.d/noip2 ...
/etc/rc0.d/K20noip2 -> ../init.d/noip2
/etc/rc1.d/K20noip2 -> ../init.d/noip2
/etc/rc6.d/K20noip2 -> ../init.d/noip2
/etc/rc2.d/S20noip2 -> ../init.d/noip2
/etc/rc3.d/S20noip2 -> ../init.d/noip2
/etc/rc4.d/S20noip2 -> ../init.d/noip2
/etc/rc5.d/S20noip2 -> ../init.d/noip2

Enabling number keypad in Ubuntu

First, install numlockx
sudo apt-get install numlockx

Then create a script to turn it on.
sudo gedit /etc/init.d/numlockon

Enter these two lines of code to your blank script. Save and close gedit.
#!/bin/bash
numlockx on

Make your script executable
sudo chmod +x /etc/init.d/numlockon

Then type this thing that does something that makes it work..
sudo update-rc.d /etc/init.d/numlockon defaults



Reboot and enjoy having a functioning numpad!