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Month: May 2010

A New Type of Phishing Attack


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Warning: count(): Parameter must be an array or an object that implements Countable in /var/www/clients/client1/web1/web/wp-content/plugins/ad-injection/ad-injection.php on line 831

What we don’t expect is that a page we’ve been looking at will change behind our backs, when we aren’t looking. That’ll catch us by

dhcpdump: Monitor DHCP Traffic For Debugging Purpose


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Warning: count(): Parameter must be an array or an object that implements Countable in /var/www/clients/client1/web1/web/wp-content/plugins/ad-injection/ad-injection.php on line 831

How do I dump DHCP packets under Linux / UNIX for monitoring or debugging purpose

Forcing fsck run on next boot


Warning: sizeof(): Parameter must be an array or an object that implements Countable in /var/www/clients/client1/web1/web/wp-content/plugins/ad-injection/ad-injection.php on line 824

Warning: count(): Parameter must be an array or an object that implements Countable in /var/www/clients/client1/web1/web/wp-content/plugins/ad-injection/ad-injection.php on line 831

If you want to force fsck filesystem check on next boot, you can do this with creating an empty file with the name of “forcefsck”

Clearing caches from memory


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Warning: count(): Parameter must be an array or an object that implements Countable in /var/www/clients/client1/web1/web/wp-content/plugins/ad-injection/ad-injection.php on line 831

From version 2.6.16 Linux kernel has a tunable parameter named /proc/sys/vm/drop_caches

vsftpd /bin/false check_shell=NO pam hack


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Warning: count(): Parameter must be an array or an object that implements Countable in /var/www/clients/client1/web1/web/wp-content/plugins/ad-injection/ad-injection.php on line 831

With default configuration of vsftp (vsftpd.conf under /etc) users with no shell or /bin/false shell are not able to login vsftpd ftp server. This is

Nginx: Too Many Open Files Error


Warning: sizeof(): Parameter must be an array or an object that implements Countable in /var/www/clients/client1/web1/web/wp-content/plugins/ad-injection/ad-injection.php on line 824

Warning: count(): Parameter must be an array or an object that implements Countable in /var/www/clients/client1/web1/web/wp-content/plugins/ad-injection/ad-injection.php on line 831

Помилка, яку можна побачити в лог-файлах nginx

Перевірка С-програм під Linux на витоки пам’яті


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Warning: count(): Parameter must be an array or an object that implements Countable in /var/www/clients/client1/web1/web/wp-content/plugins/ad-injection/ad-injection.php on line 831

Перевірка програм написаних на С під Linux на витоки пам’яті та профілювання

Запуск декількох X сесій


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Warning: count(): Parameter must be an array or an object that implements Countable in /var/www/clients/client1/web1/web/wp-content/plugins/ad-injection/ad-injection.php on line 831

Як запускати кілька X сесій під Linux або UNIX та як між ними переключатись