Computer Strain (Save you eyes and Future)

No more watery eyes, when you wake up from sleep in the middle of the night to work on your bright computer screen. Your eye savior, f.lux is here. First things first, what is f.lux and why do you need it?

 

Why do you need f.lux ?

Decreasing the brightness is not that attractive an option, because the blue light emissions from your screen is still significant enough to well up your eyes with water and completely ruin your sleepy state. It is proven that exposure to blue light significantly aids in keeping you awake for a longer time in the night.

To get to the science behind it, here’s why. Most of us don’t know this, but there is another kind of receptor cells beside rods and cones in our retina. It’s called Melanopsin. The discovery was made about 15 years ago. Melanopsin is sensitive to narrow band of blue light in 460-480 nm range. Melanopsis works different functions for different creatures, but that’s another story.

There are two things I’d like to recommend to your reading list to get more information about melanopsin and effect of blue light on sleep:

1) Internal Time by Til Roennberg

2) Research Papers and articles – link

What is f.lux what does it do?

f.lux is a desktop applet for Windows, Linux, Mac, iPhone, iPad and iPod touch which limits the glow of your screen. Instead, it replaces that with a warm tone. There is no problem for your eyes not to feel comfortable on the screen in the morning. The daylight is sufficient and doesn’t let your eyes feel the glow that the screen throws. But say at 11 PM while you are, say trying to work late after sneaking on your father or wife, you power up your computer and you get instantly taken back by the brightness!

You can reduce the brightness and contrast to a certain extent, but there is a limit to which you can go without compromising your experience. f.lux comes to rescue here. It automatically switches to a warm tone at night and goes back to a brighter shade in the morning.

Don’t worry as it uses only 3.86MB of RAM approximately, is completely free, has no CPU load and works like a charm without any user interference. The working is also fairly simple. You can also customize the way it works, especially how warm you want your screen to be at night.

How to use f.lux to save your eyes?

It does the work by calculating your present location (through google maps)and works according to the sunrise/sunset cycle. The f.lux indicator applet automatically manages the color temperature of your screen based on your latitude and longitude, or if you are in the US, your zip code.



 

In the preferences panel, you can set your preferred night-time color temperature and see a preview, as well as seeing the current color temperature.

 





You can even pause the applet if you want to:



You can download f.lux for windows here and for Mac here.
For iPhone, iPad and iPod Touch you need to jailbreak your device in order to install it. You can follow the instructions here.

To install f.lux on Linux (Ubuntu) open up the terminal and copy paste the following commands one by one.

sudo add-apt-repository ppa:kilian/f.lux

1	sudo add–apt–repository ppa:kilian/f.lux

sudo apt-get update

1	sudo apt–get update

sudo apt-get install fluxgui

1	sudo apt–get install fluxgui

If you are having an error in adding the ppa (the first command), follow this link to troubleshoot it.

The Linux GUI of the f.lux applet doesn’t provide as much customizing options as that of the other platforms, so if you are interested in adding features to it, you could do it on its open source code on GitHub.

If you have any other query regarding f.lux, comment your queries below. Do share your experiences.

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How to Change your Site from HTTP to HTTPS Complete guide

HTTP to HTTPS

Scenario :

You want to force people coming to your site to use HTTPS. Either for the entire site or a small sub-section of it.

Note

Using mod_rewrite to do this isn't the recommended behavior. 

Fix :

RewriteEngine On
# This will enable the Rewrite capabilities

RewriteCond %{HTTPS} !=on
# This checks to make sure the connection is not already HTTPS

RewriteRule ^/?(.*) https://%{SERVER_NAME}/$1 [R,L]
# This rule will redirect users from their original location, to the same location but using HTTPS.
# i.e.  http://www.example.com/foo/ to https://www.example.com/foo/
# The leading slash is made optional so that this will work either in httpd.conf
# or .htaccess context

Entire site (.htaccess) :

Note: While the rules you need are the same as above (because the rule above doesn't depend on any of the quirks of rewrite in .htaccess), you will need to ensure that you place this in a .htaccess file in the root of the site you want to apply it against, and to make sure you have the appropriate AllowOverride configuration in your httpd.conf

Specific Directory

Either put the above solution in a .htaccess file in the directory to be affected, or put the URI prefix in the regex itself.

RewriteEngine On
# This will enable the Rewrite capabilities

RewriteCond %{HTTPS} !=on
# This checks to make sure the connection is not already HTTPS

RewriteRule ^/?secure/(.*) https://%{SERVER_NAME}/secure/$1 [R,L]
# This rule will redirect all users who are using any part of /secure/ to the same location but using HTTPS.
# i.e.  http://www.example.com/secure/ to https://www.example.com/secure/
# This means if you dont want to force HTTPS for all directories you can force it for a specific sub-section of the site.

 

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Complete A-Z Kali Linux Commands

Kali Linux is a Debian-derived Linux distribution designed for digital forensics and penetration testing. It is maintained and funded by Offensive Security Ltd. Mati Aharoni, Devon Kearns and Raphaël Hertzog are the core developers.

Kali Linux is preinstalled with over 600 penetration-testing programs, including nmap (a port scanner), Wireshark (a packet analyzer), John the Ripper (a password cracker), Aircrack-ng (a software suite for penetration-testing wireless LANs), Burp suite and OWASP ZAP (both web application security scanners). Kali Linux can run natively when installed on a computer’s hard disk, can be booted from a live CD or live USB, or it can run within a virtual machine. It is a supported platform of the Metasploit Project’s Metasploit Framework, a tool for developing and executing security exploits.

Here below we are listing A-Z Kali Linux commands which will help you to ease of flow in work.

 

Kali Linux commands	Function
A
apropos	Search Help manual pages (man -k)
apt-get	Search for and install software packages (Debian)
aptitude	Search for and install software packages (Debian)
aspell	Spell Checker
awk	Find and Replace text, database sort/validate/index
B
basename	Strip directory and suffix from filenames
bash	GNU Bourne-Again Shell
bc	Arbitrary precision calculator language
bg	Send to background
break	Exit from a loop
builtin	Run a shell builtin
bzip2	Compress or decompress named files
C
cal	Display a calendar
case	Conditionally perform a command
cat	Concatenate and print (display) the content of files
cd	Change Directory
cfdisk	Partition table manipulator for Linux
chgrp	Change group ownership
chmod	Change access permissions
chown	Change file owner and group
chroot	Run a command with a different root directory
chkconfig	System services (runlevel)
cksum	Print CRC checksum and byte counts
clear	Clear terminal screen
cmp	Compare two files
comm	Compare two sorted files line by line
command	Run a command – ignoring shell functions
continue	Resume the next iteration of a loop
cp	Copy one or more files to another location
cron	Daemon to execute scheduled commands
crontab	Schedule a command to run at a later time
csplit	Split a file into context-determined pieces
cut	Divide a file into several parts
D
date	Display or change the date and time
dc	Desk Calculator
dd	Convert and copy a file, write disk headers, boot records
ddrescue	Data recovery tool
declare	Declare variables and give them attributes
df	Display free disk space
diff	Display the differences between two files
diff3	Show differences among three files
dig	DNS lookup
dir	Briefly list directory contents
dircolors	Colour setup for `ls’
dirname	Convert a full pathname to just a path
dirs	Display list of remembered directories
dmesg	Print kernel & driver messages
du	Estimate file space usage
E
echo	Display message on screen
egrep	Search files for lines that match an extended expression
eject	Eject removable media
enable	Enable and disable builtin shell commands
env	Environment variables
ethtool	Ethernet card settings
eval	Evaluate several commands/arguments
exec	Execute a command
exit	Exit the shell
expect	Automate arbitrary applications accessed over a terminal
expand	Convert tabs to spaces
export	Set an environment variable
expr	Evaluate expressions
F
false	Do nothing, unsuccessfully
fdformat	Low-level format a floppy disk
fdisk	Partition table manipulator for Linux
fg	Send job to foreground
fgrep	Search files for lines that match a fixed string
file	Determine file type
find	Search for files that meet a desired criteria
fmt	Reformat paragraph text
fold	Wrap text to fit a specified width
for	Expand words, and execute commands
format	Format disks or tapes
free	Display memory usage
fsck	File system consistency check and repair
ftp	File Transfer Protocol
function	Define Function Macros
fuser	Identify/kill the process that is accessing a file
G
gawk	Find and Replace text within files
getopts	Parse positional parameters
grep	Search files for lines that match a given pattern
groupadd	Add a user security group
groupdel	Delete a group
groupmod	Modify a group
groups	Print group names a user is in
gzip	Compress or decompress named files
H
hash	Remember the full pathname of a name argument
head	Output the first part of files
help	Display help for a built-in command
history	Command History
hostname	Print or set system name
I
iconv	Convert the character set of a file
id	Print user and group id’s
if	Conditionally perform a command
ifconfig	Configure a network interface
ifdown	Stop a network interface
ifup	Start a network interface up
import	Capture an X server screen and save the image to file
install	Copy files and set attributes
J
jobs	List active jobs
join	Join lines on a common field
K
kill	Stop a process from running
killall	Kill processes by name
L
less	Display output one screen at a time
let	Perform arithmetic on shell variables
ln	Create a symbolic link to a file
local	Create variables
locate	Find files
logname	Print current login name
logout	Exit a login shell
look	Display lines beginning with a given string
lpc	Line printer control program
lpr	Off line print
lprint	Print a file
lprintd	Abort a print job
lprintq	List the print queue
lprm	Remove jobs from the print queue
ls	List information about files
lsof	List open files
M
make	Recompile a group of programs
man	Help manual
mkdir	Create new folders
mkfifo	Make FIFOs (named pipes)
mkisofs	Create an hybrid ISO9660/JOLIET/HFS filesystem
mknod	Make block or character special files
more	Display output one screen at a time
mount	Mount a file system
mtools	Manipulate MS-DOS files
mtr	Network diagnostics (traceroute/ping)
mv	Move or rename files or directories
mmv	Mass Move and rename files
N
netstat	Networking information
nice	Set the priority of a command or job
nl	Number lines and write files
nohup	Run a command immune to hangups
notify-send	Send desktop notifications
nslookup	Query Internet name servers interactively
O
open	Open a file in its default application
op	Operator access
P
passwd	Modify a user password
paste	Merge lines of files
pathchk	Check file name portability
ping	Test a network connection
pkill	Stop processes from running
popd	Restore the previous value of the current directory
pr	Prepare files for printing
printcap	Printer capability database
printenv	Print environment variables
printf	Format and print data
ps	Process status
pushd	Save and then change the current directory
pwd	Print Working Directory
Q
quota	Display disk usage and limits
quotacheck	Scan a file system for disk usage
quotactl	Set disk quotas
R
ram	ram disk device
rcp	Copy files between two machines
read	Read a line from standard input
readarray	Read from stdin into an array variable
readonly	Mark variables/functions as readonly
reboot	Reboot the system
rename	Rename files
renice	Alter priority of running processes
remsync	Synchronize remote files via email
return	Exit a shell function
rev	Reverse lines of a file
rm	Remove files
rmdir	Remove folders
rsync	Remote file copy (Synchronize file trees)
S
screen	Multiplex terminal, run remote shells via ssh
scp	Secure copy (remote file copy)
sdiff	Merge two files interactively
sed	Stream Editor
select	Accept keyboard input
seq	Print numeric sequences
set	Manipulate shell variables and functions
sftp	Secure File Transfer Program
shift	Shift positional parameters
shopt	Shell Options
shutdown	Shutdown or restart linux
sleep	Delay for a specified time
slocate	Find files
sort	Sort text files
source	Run commands from a file
split	Split a file into fixed-size pieces
ssh	Secure Shell client (remote login program)
strace	Trace system calls and signals
su	Substitute user identity
sudo	Execute a command as another user
sum	Print a checksum for a file
suspend	Suspend execution of this shell
symlink	Make a new name for a file
sync	Synchronize data on disk with memory
T
tail	Output the last part of file
tar	Tape Archiver
tee	Redirect output to multiple files
test	Evaluate a conditional expression
time	Measure Program running time
times	User and system times
touch	Change file timestamps
top	List processes running on the system
traceroute	Trace Route to Host
trap	Run a command when a signal is set(bourne)
tr	Translate, squeeze, and/or delete characters
true	Do nothing, successfully
tsort	Topological sort
tty	Print filename of terminal on stdin
type	Describe a command
U
ulimit	Limit user resources
umask	Users file creation mask
umount	Unmount a device
unalias	Remove an alias
uname	Print system information
unexpand	Convert spaces to tabs
uniq	Uniquify files
units	Convert units from one scale to another
unset	Remove variable or function names
unshar	Unpack shell archive scripts
until	Execute commands (until error)
uptime	Show uptime
useradd	Create new user account
usermod	Modify user account
users	List users currently logged in
uuencode	Encode a binary file
uudecode	Decode a file created by uuencode
V
v	Verbosely list directory contents (`ls -l -b’)
vdir	Verbosely list directory contents (`ls -l -b’)
vi	Text Editor
vmstat	Report virtual memory statistics
W
wait	Wait for a process to complete
watch	Execute/display a program periodically
wc	Print byte, word, and line counts
whereis	Search the user’s $path, man pages and source files for a program
which	Search the user’s $path for a program file
while	Execute commands
who	Print all usernames currently logged in
whoami	Print the current user id and name (`id -un’)
wget	Retrieve web pages or files via HTTP, HTTPS or FTP
write	Send a message to another user
X
xargs	Execute utility, passing constructed argument lists
xdg-open	Open a file or URL in the user’s preferred application
Y
yes	Print a string until interrupted

 

 

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[latest] how many google ads is allowed per page

For the last years there was a restrict limitations for
the number of allowed AdSense ads on a single page:
It was 3 ads for content units and 3 ads for link units.
(Some premium partners were allowed to serve up to
6 ad units)
In August 2016 Google updated this policy
You can now place an unlimited amount of AdSense
ads on a page following the recommendation:
This mean that all ads on your site, no matter if they
are based on AdSense or not, are taken into account
for the maximum number of allowed ads on a single
page.
There is no longer a strict number of ads limitation.
Its more important that you have no more ads on your
site than visible content.
An example:
Having more than 2 visible ads at the same time on a
mobile device is too much because this the would
highly likely exceed the visible content and would lead
to a bad user experience.
On the other hand on a large desktop monitor or tablet
it is ok to show 2 or more ads as there is more
available space.
How can you know if ads exceed your content?
“Should not exceed your content” sounds more like a
rule of thumb but we think you are on the save
side when you estimate the total space of your ads on
a single page and than compare it with the total
space of your content. You can also ask friends and
visitors if the ads on your site are irritating or not.
So you get a feeling about what is ok and what not. If
the user experience is fine and the total amount of
ads are not preventing a visitor from enjoying and
reading the content you should be fine.
How many AdSense ads are recommended?
Although there is no ad limit restriction and no upper
limit you should be aware of very short posts on your
site. Using a plugin and generating ads automatically
on all your posts could lead to a very bad user
experience and spamming of your own short posts
with a huge number of ads which quickly exceed the
total content.
To prevent this we recommend that you check your
short posts carefully and consider if the total visible
amount should be reduced. If you are using WP
QUADS you can easily do this by deactivating specific
ads on a single page:
If you are showing too many ads on a single page
you could run into less or no visible ads on your site.
“We may limit or disable ad serving on
pages with little to no value and/or
excessive advertising until changes are
made.”
So we suggest you keep less than 5 ads per page. We
usually enable 3 or 4 ads on our pages.
But you should do some testing:
Sometimes 2 ad units perform better than 3 ad
units.
Placing ads above the fold leads to better
performing.
A combination of text and image ads perform
better.
Anyway, this limit should be correlating to your own
website layout. If you have a lot of content and a huge
site it could be ok to enable more than 5 ads on your
site. The only thing that matters is the user
experience. Keep that always in mind!
How many AdSense ad units are you using on your blog?
As Google has lifted the 3 ads limit are you using more
AdSense ad units or do you retain to the previous
ad limit?

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steemit was hacked! say No

[slide-anything id='84']

Steemit is a God secured platform, Yes we all
know that. But there are some things we do that
put our steemit account in danger of getting
hacked.
However, Today I will be introducing you to
various ways to protecting your steemit account
from getting hacked.
It is certain that if your steemit account should
be hacked, it is from you.
Ways in which hacker explore their target:
Operating System (OS) vunerabilities.
Bugged mail messages.
network sniffing.
physical abuse.
How do you prevent your account from been
hacked:
Note: your steemit account password is already
strong enough, so you will not be needing a
new password.
1. Get two step gmail verification
Two step verification is obviously one of
the latest security measure on gmail,
whatsapp etc. This help to reduce the risk
of your gmail account getting hacked, as
70% of steemit user would prefer to hide
there password on there account, to avoid
the stress of retyping there password often.
2. Getting your Operating System up to date
Have you ever imagined why windows
keep releasing newer version of there OS,
from time to time?
Have you ever thought on, why do we
have various versions of windows?
This is because of various threats noticed
in the previous version.
Therefore, using a non up to date OS, gives
your attacker almost a easy access to your
account with just a few hit on metasploit or
even smaller tools.
3. Use a trusted antivirus
Anti virus plays a large role in keeping
your system or device out of troubles such
as virus, worm, trojan etc.
However, Bitdefender or kapersky might
really be a good choice. So:
a) Do yourself a favour of getting one.
b) Ensure you scan all mail from all
unidentified and untrusted senders.
4. Never entrusted your device to a stranger
Human been can never be predicted, we
can be bad, good, weak, strong or even
evil.
the bad guy will not label there head with
'I am a bad guy'.
Therefore, trust nobody, security is your
right, is your role.
HAPPY STEEMING!

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[Latest] Get the Mt

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Women are gifts to Men, Naylite 2018

I salute the strenght of a WOMAN
A MAN:

• changes her name


• changes her home


• leaves her family and moves in with you


• builds a home with you


• gets pregnant for you
  
  pregnancy changes her body
  
  
  she gets fat
  
  
• almost gives up in the labour room due to the
  unbearable
  pain of child birth


• even the kids she delivers bear your name

till the day she dies... everything she does...
cooking,
cleaning your house, taking care of your parents,
bringing up your children, earning, advising you, ensuring
you can be relaxed, maintaining all family relations,
everything that you benefit from.....
Sometimes at the cost of her own health, hobbies and beauty.
So who is really doing whom a favour?

Dear men, appreciate the women in your lives
always, because it is not easy to be a woman.
Being a woman is priceless
Happy women's week!
Happy Independence Day
Share this to every woman in your contact to make her feel
proud of herself.

Rock the world ladies!
Salute to you ladies!


MY DEFINITION OF A WOMAN WOULD BE:-
W ➖ WONDERFUL MOTHER
O ➖ OUTSTANDING FRIEND
M ➖ MARVELLOUS DAUGHTER
A ➖ ADORABLE SISTER
N ➖ NICEST GIFT TO MEN FROM GOD.

This is an article written by
Miss. Owolabi Rosheedat Arinola, NAYLL Vice President, Kwara Poly Chapter. Nigeria.

Share this article with every man to know the value of women
&
Share to every woman to feel proud!
I am proudly a Naylite.

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