The first lines you posted are recommendations for certain tcp ports (which are applications ports like smtp, ssh, http, https, etc) to be either denied / not allowed or allowed to pass through your firewall
Select from freelancers specializing in everything from database administration to programming, who have proven themselves as experts in their field. Hire the best, collaborate easily, pay securely and get projects done right.
Attention: This article will no longer be maintained. If you have any questions, please feel free to mail me. jgh@FreeBSD.org
Please see http://www.freebsd.org/doc/en_US.ISO8859-1/articles/freebsd-update-server/ for the updated article. It is avail…
Java performance on Solaris - Managing CPUs
There are various resource controls in operating system which directly/indirectly influence the performance of application. one of the most important resource controls is "CPU".
In a multithreaded…
Learn how to find files with the shell using the find and locate commands.
Use locate to find a needle in a haystack.: With locate, check if the file still exists.: Use find to get the actual location of the file.:
Learn how to navigate the file tree with the shell.
Use pwd to print the current working directory: Use ls to list a directory's contents: Use cd to change to a new directory: Use wildcards instead of typing out long directory names: Use ../ to move…