hutcho's blog

Alt-F2
Allows you to start a program (if you know the name of it)

A terminal session
gnome-terminal

Driver management
jockey-gtk

Graphics card config
nvidia-settings

The software update manager
update-manager

Startup programs
gnome-session-properties

I just had to renew my SSL certificate and wanted to make a couple of notes that someone might find handy. (Probably me next year)

* Find the CSR file. (Or you can/should generate a new one)
Open /etc/apache2/sites-available/www.yoursite.com and search for '.key' which gives you the directory where the CSR file should be.
Or run something like the following command: find / -name '*.csr'

* Open the CSR file in nano and copy the text into the renew certificate field from your hosting provider.

My set up is Drupal 6 on LAMP (Linux/Apache/MySQL/PHP) and I needed to dynamically generate XML on a per user basis as a data transfer mechanism between MySQL and the web browser via PHP and Java (I.e. AJAX) for a mapping application.

The actual code is pretty simple really, but finding the right place to put all the bits was very frustrating. I couldn't find an article that really nailed it, so here is what I did.

There are a number of elements needed to achieve this.
* Linking to drupal user managment (getting access to global $user).

Install:
$ sudo apt-get install diff-ext
Restart Nautilus (Log out)

Usage:
Pick two files and right click -> compare.

References:
http://morgancollett.wordpress.com/2008/11/19/comparing-files-in-nautilu...

Install Eclipse from the package manager.

Then:
sudo add-apt-repository ppa:yogarine/eclipse/ubuntu && sudo apt-get update
sudo apt-get install eclipse-pdt

Sooooo much easier than I remember on 8.04 and 8.10.

Similarly to install RabbitVCS
sudo add-apt-repository ppa:rabbitvcs && sudo apt-get update
Search package manager for rabbitvcs, there are about 6 plugins.

References:
https://help.ubuntu.com/community/EclipsePDT
http://blog.yogarine.com/2009/10/eclipse-plugin-packages-for-ubuntu.html
http://wiki.rabbitvcs.org/wiki/download

Edit: /etc/postfix/main.cf

#content_filter = amavis:[127.0.0.1]:10024
#receive_override_options = no_address_mappings

Edit: /etc/postfix/master.cf

#amavis unix - - - - 2 smtp
# -o smtp_data_done_timeout=1200
# -o smtp_send_xforward_command=yes

#127.0.0.1:10025 inet n - - - - smtpd
# -o content_filter=
# -o local_recipient_maps=
# -o relay_recipient_maps=
# -o smtpd_restriction_classes=
# -o smtpd_client_restrictions=
# -o smtpd_helo_restrictions=
# -o smtpd_sender_restrictions=
# -o smtpd_recipient_restrictions=permit_mynetworks,rej ect
# -o mynetworks=127.0.0.0/8

Download from here:
http://sourceforge.net/projects/snmptt/files/

Basic installing from here (with exceptions below):
http://snmptt.sourceforge.net/docs/snmptt.shtml#Installation-Unix

Found some of the paths not right for Ubuntu such as:
cp snmptt.init.d to /etc/rc.d/init.d/snmptt
should be
cp snmptt.init.d to /etc/init.d/snmptt

9.4. I see following error: Can't locate Config/IniFiles.pm in @INC ...What should I do?

Running a VPS? Going over your oomguarpages limit?

Well this should help
http://onlamp.com/pub/a/onlamp/2004/02/05/lamp_tuning.html

In particular check out the section about MaxRequestsPerChild and you can use this command ps axu --sort:rss to see how much RAM you are using.

1) PHP Web server
To find this one create a file with <?php phpinfo(); ?> and run it on your web server.
/etc/php5/apache2/php.ini

2) PHP Client
To find this run this command.
$ php -r "phpinfo();" | grep php.ini
/etc/php5/cli/php.ini

Basically you need to understand three things to understand how this works:

1) Which user is the php file running as?
- When you run "crontab -e" the user you are running it as will be the user the php file runs as.

2) What are the permissions on the log file?
- Check the permissions, owner and group using "ls -al"

3) What are the permissions on the php file?
If you run the php file with a directive #!/bin/php at the top of the file then you need to set executable permissions on the file. If you specify php /path/to/phpfile.php then you don't need to do this.