PHP. Выставляем куки на localhost и apache.

Верный формат такой:

setcookie("username", "leon", false, "/", false);

Debian. Сверим часы.

sudo date +%T -s "14:37:00"

Debian. Установка memcache.

apt-get install memcached
ps aux | grep memcache
nobody    9224  0.0  0.0   2584  1084 ?        S    13:53   0:00 /usr/bin/memcached -m 64 -p 11211 -u nobody -l 127.0.0.1

Качаем Development package xampp и исходники модуля memcache для php c http://pecl.php.net/package/memcache.
Распаковываем:

debian:tar xvfz xampp-linux-devel-1.7.3a.tar.gz -C /opt 
debian:/home/leon/Downloads# exit
exit
leon@debian:~/Downloads$ tar xzf memcache-3.0.5.tgz 
leon@debian:~/Downloads$ cd memcache-3.0.5
leon@debian:~/Downloads/memcache-3.0.5$ sudo /opt/lampp/bin/phpize
Configuring for:
PHP Api Version:         20090626
Zend Module Api No:      20090626
Zend Extension Api No:   220090626
Cannot find autoconf. Please check your autoconf installation and the
$PHP_AUTOCONF environment variable. Then, rerun this script.

leon@debian:~/Downloads/memcache-3.0.5$ sudo apt-get install autoconf
...
leon@debian:~/Downloads/memcache-3.0.5$ sudo /opt/lampp/bin/phpize
Configuring for:
PHP Api Version:         20090626
Zend Module Api No:      20090626
Zend Extension Api No:   220090626
leon@debian:~/Downloads/memcache-3.0.5$ 
leon@debian:~/Downloads/memcache-3.0.5$ ./configure --enable-memcache --with-php-config=/opt/lampp/bin/php-config
checking for grep that handles long lines and -e... /bin/grep
checking for egrep... /bin/grep -E
checking for a sed that does not truncate output... /bin/sed
checking for cc... no
checking for gcc... no
configure: error: no acceptable C compiler found in $PATH
See `config.log' for more details.
leon@debian:~/Downloads/memcache-3.0.5$ sudo apt-get install gcc
...
leon@debian:~/Downloads/memcache-3.0.5$ ./configure --enable-memcache --with-php-config=/opt/lampp/bin/php-config
...
checking for the location of zlib... configure: error: memcache support requires ZLIB. Use --with-zlib-dir=<DIR>
to specify prefix where ZLIB include and library are located
...
leon@debian:~/Downloads/memcache-3.0.5$ sudo apt-get install zlib1g-dev
...
leon@debian:~/Downloads/memcache-3.0.5$ ./configure --enable-memcache --with-php-config=/opt/lampp/bin/php-config
leon@debian:~/Downloads/memcache-3.0.5$ sudo apt-get install make
leon@debian:~/Downloads/memcache-3.0.5$ make
leon@debian:~/Downloads/memcache-3.0.5$ sudo make install
...
Installing shared extensions:     /opt/lampp/lib/php/extensions/no-debug-non-zts-20090626/
leon@debian:~/Downloads/memcache-3.0.5$ sudo nano /opt/lampp/etc/php.ini

Добавляем расширение:
extension="memcache.so"
Перезапускаем xampp ...

Debian. Установка Firefox.

Качаем архив с сайта firefox для linux.

leon@debian:~/Downloads$ su
Пароль: 
debian:/home/leon/Downloads# mv firefox-3.6.12.tar.bz2 /usr/lib
debian:/home/leon/Downloads# cd /usr/lib/
debian:/usr/lib# tar -jxvf firefox-3.6.12.tar.bz2
debian:/usr/lib# ln -s /usr/lib/firefox/firefox /usr/bin/firefox

Создаем ссылку на каталог с плагинами:

debian:/usr/lib# rm -rf /usr/lib/firefox/plugins
debian:/usr/lib# ln -s /usr/lib/mozilla/plugins /usr/lib/firefox/plugins

Debian. Подключаем backports и устанавливаем Pidgin.

Некоторые пакеты с более новыми версиями для Lenny доступны из репозитория backports.

leon@debian:~$ su
Пароль: 
debian:/home/leon# nano /etc/sudoers 

Добавляем в файл строку:
leon ALL=(ALL) ALL
Этим мы позволяем пользователю пользоваться командой sudo.

debian:/home/leon# exit
exit
leon@debian:~$ sudo nano /etc/apt/sources.list

We trust you have received the usual lecture from the local System
Administrator. It usually boils down to these three things:

    #1) Respect the privacy of others.
    #2) Think before you type.
    #3) With great power comes great responsibility.

[sudo] password for leon:

Добавляем репозиторий в список:
deb http://www.backports.org/debian lenny-backports main contrib non-free

leon@debian:~$ sudo apt-get update
leon@debian:~$ sudo apt-get install debian-backports-keyring

Устанавливаем Pidgin

leon@debian:~$ apt-get install -t lenny-backports pidgin

Теперь установлен Pidgin 2.7.3.

VirtualBox. Монтирование внешнего каталога на гостевой ос Debian.

mount -t vboxsf SharedFolder /mnt/