Thursday, December 20, 2012
PHPUnit
sudo pear upgrade pear
Install PHPUnit Dependencies
Now, we can install PHPUnit and it’s dependencies through PEAR.
$ sudo pear channel-discover pear.phpunit.de
$ sudo pear channel-discover components.ez.no
$ sudo pear channel-discover pear.symfony.com
$ sudo pear install --alldeps phpunit/PHPUnit
Make Sure It Works
After everything is complete, verify that phpunit works:
$ phpunit --version
PHPUnit 3.5.5 by Sebastian Bergmann.
Sunday, December 02, 2012
Installing VirtualBox Guest Additions on Ubuntu Server
sudo mount /dev/cdrom /media/
sudo apt-get install -y dkms build-essential linux-headers-generic linux-headers-$(uname -r)
sudo /media/VBoxLinuxAdditions.run
sudo mount -t vboxsf ShareName /var/www/sharename
sudo apt-get install -y dkms build-essential linux-headers-generic linux-headers-$(uname -r)
sudo /media/VBoxLinuxAdditions.run
sudo mount -t vboxsf ShareName /var/www/sharename
Monday, November 26, 2012
Friday, November 23, 2012
Tuesday, November 20, 2012
Friday, October 12, 2012
NTP Observatório Astronómico de Lisboa (oal)
sudo apt-get install ntp And for ntpd edit /etc/ntp.conf to include additional server lines: server ntp02.oal.ul.pt server ntp04.oal.ul.pt
Monday, August 20, 2012
Mars Landing Special: Aug 5th 10PM PDT
Mars Landing Special: Aug 5th 10PM PDT:
Think space exploration ended with the space shuttle? Come with us to Mars!
On August 5th at 10 PM Pacific/1 AM Eastern, Jonathan Strickland (HowStuffWorks.com) and I will bring you an hour of coverage of the Curiosity Rover's crazy attempt to land on Mars via a sky crane.
We'll have reports from expert guests, like Dr. Kiki (who I hear will be inside Ames!) and the Bad Astronomer, Phil Plait. We'll hear from Steve Sell, JPL Entry/Descent/Landing team member and Sky Crane specialist, about why this whole thing isn't as crazy as it sounds, how it's going to work, and the tech they'll use to make it happen.
Think space exploration ended with the space shuttle? Come with us to Mars!
On August 5th at 10 PM Pacific/1 AM Eastern, Jonathan Strickland (HowStuffWorks.com) and I will bring you an hour of coverage of the Curiosity Rover's crazy attempt to land on Mars via a sky crane.
We'll have reports from expert guests, like Dr. Kiki (who I hear will be inside Ames!) and the Bad Astronomer, Phil Plait. We'll hear from Steve Sell, JPL Entry/Descent/Landing team member and Sky Crane specialist, about why this whole thing isn't as crazy as it sounds, how it's going to work, and the tech they'll use to make it happen.
The Scoop
On Sunday August 5th at 1:31 AM eastern time/10:31 PM Pacific NASA expects to receive the first signals from the Mars Curiosity Rover on the surface of Mars. The Mars Science Laboratory Mission will explore terrain at the foot of a mountain of sedimentary material inside Gale crater. It's looking for evidence of microbial life.
NASA is attempting the most complex remote landing sequence ever attempted, involving a parachute and a sky crane. It takes 14 minutes for signals to travel from Mars to Earth. From the top of the atmosphere to landing, the descent will take 7 minutes. From the time the first signal arrives on Earth that descent has begun, the Curiosity Rover will have been on the surface of Mars for at least seven minutes, crashed or not.
If you haven't watched "Seven minutes of terror" yet, by all means do so. The landing logistics are insane.
On Sunday August 5th at 1:31 AM eastern time/10:31 PM Pacific NASA expects to receive the first signals from the Mars Curiosity Rover on the surface of Mars. The Mars Science Laboratory Mission will explore terrain at the foot of a mountain of sedimentary material inside Gale crater. It's looking for evidence of microbial life.
NASA is attempting the most complex remote landing sequence ever attempted, involving a parachute and a sky crane. It takes 14 minutes for signals to travel from Mars to Earth. From the top of the atmosphere to landing, the descent will take 7 minutes. From the time the first signal arrives on Earth that descent has begun, the Curiosity Rover will have been on the surface of Mars for at least seven minutes, crashed or not.
If you haven't watched "Seven minutes of terror" yet, by all means do so. The landing logistics are insane.
Tuesday, August 14, 2012
Controlling the Web
Controlling the Web: This documentary looks at the fight for control of the web, life in the digital age and the threat to cyber freedom, asking if US authorities are increasingly trying to regulate user freedoms in the name of national and economic security. In January 2012, two controversial pieces
Watch now...
Watch now...
Monday, July 02, 2012
Share a folder from ubuntu server with virtualbox
Add a existing user to existing group
# usermod -a -G vboxsf pedro
# id pedro
sudo mount -t vboxsf kits /var/www/site
Even better...
In the “Shared Folders” screen, give full access, but don’t check auto-mount
Check your uid&gid (by doing >id)
Add the following line /etc/fstab
site /var/www/site vboxsf uid=1000,gid=1000,nodev,noexec,nosuid,auto,rw 0 0
Sunday, May 20, 2012
Auto login xubuntu
Autologin - Xubuntu
To enable autologin in Xubuntu:
Open the file /etc/lightdm/lightdm.conf
Modify the value of the string "autologin-user" with the required user name
Ex:
Save the file Reboot/ restart
Open the file /etc/lightdm/lightdm.conf
sudo gedit /etc/lightdm/lightdm.conf
Modify the value of the string "autologin-user" with the required user name
Ex:
autologin-user=pedro
Save the file Reboot/ restart
Tuesday, May 01, 2012
Saturday, April 21, 2012
Sunday, April 15, 2012
Friday, April 13, 2012
Speed up ubuntu
sudo sublime-text /etc/fstab
# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point> <type> <options> <dump> <pass>
proc /proc proc nodev,noatime,noexec,nosuid 0 0
# / was on /dev/sda6 during installation
UUID=3ae1a70e-2ac6-46c1-a135-b981eeb76221 / ext4 errors=remount-ro,noatime 0 1
# swap was on /dev/sda5 during installation
UUID=bf903d3c-d9cf-4807-a9bd-e71c329275aa none swap sw 0 0
tmpfs /var/cache tmpfs defaults,auto,noatime,nodiratime,nodev,nosuid,async 0 0
tmpfs /var/lock tmpfs defaults,auto,noatime,nodiratime,nodev,nosuid,async 0 0
tmpfs /var/log tmpfs defaults,auto,noatime,nodiratime,nodev,nosuid,async 0 0
tmpfs /var/tmp tmpfs defaults,auto,noatime,nodiratime,nodev,nosuid,async 0 0
#tmpfs /var/mail tmpfs defaults,auto,noatime,nodiratime,nodev,nosuid,async 0 0
tmpfs /run tmpfs defaults,auto,noatime,nodiratime,nodev,nosuid,async 0 0
tmpfs /var/spool/anacron tmpfs defaults,auto,noatime,nodiratime,nodev,nosuid,async 0 0
tmpfs /var/spool/cron tmpfs defaults,auto,noatime,nodiratime,nodev,nosuid,async 0 0
#tmpfs /var/spool/cups tmpfs defaults,auto,noatime,nodiratime,nodev,nosuid,async 0 0
#tmpfs /var/spool/mail tmpfs defaults,auto,noatime,nodiratime,nodev,nosuid,async 0 0
tmpfs /var/spool/plymouth tmpfs defaults,auto,noatime,nodiratime,nodev,nosuid,async 0 0
tmpfs /var/spool/rsyslog tmpfs defaults,auto,noatime,nodiratime,nodev,nosuid,async 0 0
#tmpfs /var/lib/php/sessions tmpfs defaults,auto,noatime,nodiratime,nodev,nosuid,async 0 0
tmpfs /tmp tmpfs defaults,auto,noatime,nodiratime,nodev,nosuid,async 0 0
sudo sublime-text/etc/sysctl.conf
vm.swappiness=10vm.vfs_cache_pressure=50
fs.inotify.max_user_watches =2097152
After modifying the file should run
sudo sysctl -p --system
Firefox
Type
about:config
in firefox address bar and click I'll be careful,I promise!
.Right click on blank area and create a new string value called ,set its value toGet rid of application with high I/O usage
To move the cache in Firefox, in the browser type ‘about:config’,
right-click anywhere and select
New –> String,
browser.cache.disk.parent_directory
/tmp/firefox
for a super-fast memory cache
compact firefox DB's:
for f in ~/.mozilla/firefox/*/*.sqlite; do sqlite3 $f 'VACUUM;'; done
In firefox:extensions.pocket.enabled;false
CROME
For chrome edit the icon lanch command:
default command: /opt/google/chrome/google-chrome %U
/usr/bin/google-chrome-stable %U --disk-cache-dir='/tmp/chrome/' --disk-cache-size=2147483647
pedro@pedro:~$ sudo dd if=/dev/zero of=/tmp/t.img bs=4G count=1 oflag=dsync 0+1 records in 0+1 records out 2147479552 bytes (2.1 GB, 2.0 GiB) copied, 5.72344 s, 375 MB/s pedro@pedro:~$ #/after tmp as tmpfs pedro@pedro:~$ sudo dd if=/dev/zero of=/tmp/t.img bs=4G count=1 oflag=dsync [sudo] password for pedro: 0+1 records in 0+1 records out 2147479552 bytes (2.1 GB, 2.0 GiB) copied, 1.02069 s, 2.1 GB/s pedro@pedro:~$
Thursday, April 12, 2012
Monday, March 12, 2012
Clock settings in gnome like windows
To see all the options: man date | less +/"FORMAT controls"
mine are like windows 7: %H:%M%n%d/%m/%Y
Sunday, March 04, 2012
Using PHP5-FPM With Apache2 On Ubuntu 11.10
http://www.howtoforge.com/using-php5-fpm-with-apache2-on-ubuntu-11.10
Could not reliably determine the server’s fully qualified domain name
sudo gedit /etc/apache2/httpd.conf
ServerName localhost
sudo /etc/init.d/apache2 restart
Thursday, March 01, 2012
Apache
How to redirect your website base on country ip request, Apache, geoip, rewrite
Install the mod-geoip
Enable the mods:
In your file ".htaccess" add these lines:
You have to configure the virtual host to read the .htaccess file.
In your file "httpd.conf" add these lines:
Download the file from http://www.maxmind.com/app/geolitecountry and put it in /usr/local/share/geoip/geoip.dat
There are a lot of versions. This one is free for countries :)
Using mod_spdy With Apache2 On Ubuntu 12.04
from: http://www.howtoforge.com/using-mod_spdy-with-apache2-on-ubuntu-12.04
SPDY runs over HTTPS, so we need an HTTPS-enabled web site to test SPDY. Please note that SPDY will fall back to HTTPS if the user's browser does not support SPDY or if things go wrong, so installing mod_spdy doesn't hurt your existing setup.
a2enmod ssl
a2ensite default-ssl
/etc/init.d/apache2 restart
cd /tmp
wget https://dl-ssl.google.com/dl/linux/direct/mod-spdy-beta_current_amd64.deb
dpkg -i mod-spdy-*.deb
apt-get -f install
/etc/init.d/apache2 restart
chrome://net-internals/#spdy
Install the mod-geoip
sudo apt-get install libapache2-mod-geoip
Enable the mods:
sudo a2enmod rewrite sudo a2enmod geoip
# if country is PT RewriteEngine on RewriteCond %{ENV:GEOIP_COUNTRY_CODE} ^PT$ RewriteRule ^(.*)$ http://www.site.pt # else RewriteEngine on RewriteRule ^(.*)$ http://www.site/en/
You have to configure the virtual host to read the .htaccess file.
<directory /var/www/site/> Options Indexes FollowSymLinks MultiViews AllowOverride All Order allow,deny allow from all </directory>
In your file "httpd.conf" add these lines:
GeoIPEnable On GeoIPDBFile /usr/local/share/geoip/geoip.dat
Download the file from http://www.maxmind.com/app/geolitecountry and put it in /usr/local/share/geoip/geoip.dat
There are a lot of versions. This one is free for countries :)
Using mod_spdy With Apache2 On Ubuntu 12.04
from: http://www.howtoforge.com/using-mod_spdy-with-apache2-on-ubuntu-12.04
SPDY runs over HTTPS, so we need an HTTPS-enabled web site to test SPDY. Please note that SPDY will fall back to HTTPS if the user's browser does not support SPDY or if things go wrong, so installing mod_spdy doesn't hurt your existing setup.
a2enmod ssl
a2ensite default-ssl
/etc/init.d/apache2 restart
cd /tmp
wget https://dl-ssl.google.com/dl/linux/direct/mod-spdy-beta_current_amd64.deb
dpkg -i mod-spdy-*.deb
apt-get -f install
/etc/init.d/apache2 restart
chrome://net-internals/#spdy
Wednesday, February 22, 2012
Configure netbeans fonts in ubuntu
sudo gedit /usr/local/netbeans-7.1/etc/netbeans.conf
locate
netbeans_default_options=
add this at the end of the line
--laf Nimbus -J-Dswing.aatext=true -J-Dawt.useSystemAAFontSettings=lcd
or just this, if you don't won't the new java look.
-J-Dswing.aatext=true -J-Dawt.useSystemAAFontSettings=lcd
locate
netbeans_default_options=
add this at the end of the line
--laf Nimbus -J-Dswing.aatext=true -J-Dawt.useSystemAAFontSettings=lcd
or just this, if you don't won't the new java look.
-J-Dswing.aatext=true -J-Dawt.useSystemAAFontSettings=lcd
Tuesday, February 21, 2012
How to setup a Google Apps account in Pidgin?
You have to change the advanced options of the account.
Set "Server" to talk.google.comTuesday, February 14, 2012
Git
Username and Email
git config --global user.name "Pedro Abrantes"
git config --global user.email daniel.abrantes@gmail.com
git config --global diff.tool meld
git config --global merge.tool meld
git config --global push.default matching
Pretty Log
git config format.pretty oneline
Get latest from server
git fetch origin
git merge origin/"branch"
Delete branch
local
git branch -d branch
remote
git push origin --delete branch
View differences between branches
git difftool master..devel
View differences between local file and other branch
git difftool other_branch -- path_to_file
git difftool other_branch path_to_file
View differences between branched for one specific file
git difftool one_branch other_branch -- path_to_file
git difftool one_branc..other_branch path_to_file
Get an archive from differences between branches
git archive -o update.zip version3.1.18a $(git diff --name-only version3.1.18_merged )
How do I create a new git branch from an old commit and checkout it?
git checkout -b <name> <oct>
Checkout file from previous commit
First get the file back from one commit before:
git checkout HEAD~1 path/to/file.ext
Then commit it:
git commit -a -m 'Retrieved file from older revision'
If only the changes to that file where present in the last commit, you can even use git-revert:
git revert HEAD
I think it would be better to make this a separate commit, because it tells you exactly what you've reverted, and why. However, you can squash this into the previous commit by using the --amend switch to git-commit.
Checkout a remote branch without locally created
git checkout -t origin/branch
or
git fetch origin
git checkout -b test origin/test
Check files on disk
git fsck-objects --full
To see the changes between the working directory and the index. This shows what has been changed, but is not staged for a commit.
git diff
To see the changes between the index and the HEAD(which is the last commit on this branch). This shows what has been added to the index and staged for a commit.
git diff --cached
To see all the changes between the working directory and HEAD (which includes changes in the index). This shows all the changes since the last commit, whether or not they have been staged for commit or not.
git diff HEAD
To view only the difference in patch mode
git format-patch branch1..branch2
to make a single patch use:
git format-patch branch1..branch2 --stdout > my_new_patch.diff
and apply
git am < my_new_patch.diff
To squash all commits since you branched away from master, do
git rebase -i master
git config --global user.name "Pedro Abrantes"
git config --global user.email daniel.abrantes@gmail.com
git config --global diff.tool meld
git config --global merge.tool meld
git config --global push.default matching
Use colors in git
git config color.ui true
git config color.ui true
Pretty Log
git config format.pretty oneline
Get latest from server
git fetch origin
git merge origin/"branch"
Delete branch
local
git branch -d branch
remote
git push origin --delete branch
View differences between branches
git difftool master..devel
View differences between local file and other branch
git difftool other_branch -- path_to_file
git difftool other_branch path_to_file
View differences between branched for one specific file
git difftool one_branch other_branch -- path_to_file
git difftool one_branc..other_branch path_to_file
Get an archive from differences between branches
git archive -o update.zip version3.1.18a $(git diff --name-only version3.1.18_merged )
How do I create a new git branch from an old commit and checkout it?
git checkout -b <name> <oct>
Checkout file from previous commit
First get the file back from one commit before:
git checkout HEAD~1 path/to/file.ext
Then commit it:
git commit -a -m 'Retrieved file from older revision'
If only the changes to that file where present in the last commit, you can even use git-revert:
git revert HEAD
I think it would be better to make this a separate commit, because it tells you exactly what you've reverted, and why. However, you can squash this into the previous commit by using the --amend switch to git-commit.
Checkout a remote branch without locally created
git checkout -t origin/branch
or
git fetch origin
git checkout -b test origin/test
Check files on disk
git fsck-objects --full
To see the changes between the working directory and the index. This shows what has been changed, but is not staged for a commit.
git diff
To see the changes between the index and the HEAD(which is the last commit on this branch). This shows what has been added to the index and staged for a commit.
git diff --cached
To see all the changes between the working directory and HEAD (which includes changes in the index). This shows all the changes since the last commit, whether or not they have been staged for commit or not.
git diff HEAD
To view only the difference in patch mode
git format-patch branch1..branch2
to make a single patch use:
git format-patch branch1..branch2 --stdout > my_new_patch.diff
and apply
git am < my_new_patch.diff
To squash all commits since you branched away from master, do
git rebase -i master
Saturday, February 04, 2012
Check open ports on Ubuntu Linux
One may want to check open ports on Ubuntu to ensure that there are no services listening that shouldn't be. If we remember, a port is what an application will use to communicate with another application, provide a service, etc. To get an idea of what services are running on a system, we would need to check the open ports on the system.
It is easy for us to install a program which provides a service and then forget about it, so we may have our machine listening on a number of ports waiting for incoming connections. Attackers love when ports are open, as the applications listening on these ports are the easiest targets. In order to ensure that our Ubuntu Linux system (or any other system for that matter) is as secure as possible, we need to be aware of what ports are open and providing what services.
In the tutorial below, we will look at how to check open ports on Ubuntu or other versions of Linux.
Checking open ports on Ubuntu
To check which ports are open on our Ubuntu box, we can issue the command shown below. Note that this should also work for other flavours of Linux as long as they have netstat installed.
Run the following in a terminal:
netstat -anltp | grep "LISTEN"
The typical web server which runs FTP, SSH, and MySQL will have output like:
tcp 0 0 127.0.0.1:3306 0.0.0.0:* LISTEN 21432/mysqld tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN 4090/apache2 tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 7213/sshd tcp6 0 0 :::21 :::* LISTEN 19023/proftpd tcp6 0 0 :::22 :::* LISTEN 7234/sshd
What the above command does is run the netstat utility with the appropriate flags, then pipes the output to grep which then extracts the lines which contain the word "LISTEN". What we have as the result of that, is a list of the ports that we have open and the names of the processes which are listening on those ports.
Which ports are open to the world
Note that a service may have a port open, but that port may be only listening on the current machine. That is, a port is open, but you will not be able to access it from over the network. This is useful for security as something like a web server should have port 80 open to the world, but the world need not know about (or be able to connect to) port 3306, the port which the MySQL server that powers the website is listening on.
Ideally, if you are running a web server, the only ports that you would want visible on the outside are HTTP port 80 and maybe SSH port 22 since you still need to be able to connect to the web server to run commands.
The ports which have services available to the localhost only, will have the IP address 127.0.0.1 in its local address field. In the example above, that would be:
tcp 0 0 127.0.0.1:3306 0.0.0.0:* LISTEN 21432/mysqld
As we can see, MySQL is listening on port 3306 on an IP address of 127.0.0.1. This means that only programs on the same machine will be able to connect to the MySQL server.
That is it for this tutorial on checking open ports on Ubuntu Linux. We hope you enjoyed it. Check out the links below for other articles which you may like.
http://www.tutorialarena.com/blog/check-open-ports-on-ubuntu-linux.php
http://www.tutorialarena.com/blog/check-open-ports-on-ubuntu-linux.php
Friday, February 03, 2012
Adivinha
É maior que Deus, Pior que o diabo, os pobres tem, os ricos precisam, quando você come morre.?
Wednesday, February 01, 2012
Friday, January 27, 2012
Hide PHP on Apache and Apache itself
Hide PHP on Apache and Apache itself: In httpd.conf ------------- ServerName localhost # ... # Minimize 'Server' header information ServerTokens Prod # Disable server signature on server generated pages ServerSignature Off # ... # Set default file type to PHP DefaultType application/x-httpd-php # ... php.ini ------------ ; ... expose_php = Off ; ...
Monday, January 23, 2012
Sunday, January 22, 2012
How to install Eclipse 3.7 on Ubuntu 11.04
The Eclipse packages in Ubuntu are are very out of date. The latest version in the Ubuntu repos is 3.5.2 where as the latest version of Eclipse is 3.7. I’m posting this because Ubuntu 11.04 uses the new Unity desktop which uses overlay-scrollbars (scrolls bars that are hidden until you hover over them). For some reason Eclipse 5.3.2 doesn’t like to play nice with the overlay scrollbars, and I’d rather use the newest version anyways. With Eclipse, you can just download the tar.gz file from eclipse.org and run it no problem, but I like set things up in a cleaner fashion, so here’s how I did it.
1) Download Eclipse. I got eclipse-SDK-3.7-linux-gtk-x86_64.tar.gz
1) Download Eclipse. I got eclipse-SDK-3.7-linux-gtk-x86_64.tar.gz
2) Extract it
tar zxvf eclipse-SDK-3.7.2-linux-gtk-x86_64.tar.gz
Or just be lazy and Right Click > Extract Here
3) Move to /opt/ folder
sudo mv -f eclipse /opt/ cd /opt/ sudo chown -R root:root eclipse sudo chmod -R +r eclipse
4) Create an eclipse executable in your path
sudo touch /usr/bin/eclipse sudo chmod 755 /usr/bin/eclipse sudo nano /usr/bin/eclipse
copy this into nano
#!/bin/sh #export MOZILLA_FIVE_HOME="/usr/lib/mozilla/" export ECLIPSE_HOME="/opt/eclipse" $ECLIPSE_HOME/eclipse $*
save the file (^O = Ctrl+o) and exit nano (^X = Ctrl+x)
5) Create a gnome menu item
sudo nano /usr/share/applications/eclipse.desktop
copy this into nano
[Desktop Entry] Encoding=UTF-8 Name=Eclipse Comment=Eclipse IDE Exec=eclipse Icon=/opt/eclipse/icon.xpm Terminal=false Type=Application Categories=GNOME;Application;Development; StartupNotify=true
save and exit nano
6) Launch Eclipse for the first time
/opt/eclipse/eclipse -clean &7) The update Site
http://download.eclipse.org/releases/indigo/
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