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Tag Archives: secure

November, 2009

  • 24 November

    How to defend a virtual private server from hackers

    Email forms are a common way for hackers to send spam. If you use email forms such as Matt’s script (often known as FormMail) or other similar mail scripts, your server could be vulnerable to attacks. If you have clients or simply other users creating sites on your server, you …

  • 6 November

    Managing passwords in Linux with the "passwd" command

    When managing a dedicated server, it is very important to keep a secure password and to change it periodically. In an SSH session, the best way to accomplish this is to use the “passwd” command. A normal user can change his/her own account, while a system administrator (root) can change …

October, 2009

  • 6 October

    What is root and su?

    Question: What is root and su? Answer: On Linux and other Unix-like systems, root is the default username of the system administrator or super user (su). Typically, the root user is the only one that has complete read and write access on every file located on a server. Shared hosting …