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    • Linux Restricted Shell

      Linux Restricted Shell

      The idea of a restricted shell first arose in the Unix operating system in order to prevent the end-user from doing as many operations as a normal shell allows. A restricted shell lets the administrator control the end-user’s computing environment by only permitting explicitly used commands to be used. The Linux restricted shell (rssh) is

    • How to Use the Unix Sort Command

      How to Use the Unix Sort Command

      The Unix sort command is a command for the Unix family of operating systems. It is designed to sort whatever information you give it. The command can be used for a variety of purposes, but it is most frequently employed when there are a number of different files which need to be ordered in some

    • Configuring a Linux DHCP Server

      Configuring a Linux DHCP Server

      DHCP is the dynamic host configuration protocol. In other words, it describes how your computer is connected to networks. Assigning an IP address dynamically is a basic task assigned to DHCP along with domain name, name server, gateway, host name and net mask. DHCP can provide other information like time server and has a capability

    • How to Use the Unix Find Command

      How to Use the Unix Find Command

      The Unix find command, as the name implies, is a command that you can enter into the command line, or terminal, of a Unix operating system, allowing you to process any given set of files or directories. It is a highly useful command that you can take advantage of on Unix based operating system, making

    • LinuxCAD

      LinuxCAD

      CAD programs can be an exciting and helpful tool when designing blueprints for a house, vehicle, or electrical circuit. One of these programs is the popular LinuxCAD software that allows you to edit and create a number of blueprints and schematics under the Linux operating system. LinuxCAD comes with many features that other CAD programs

    • How to Change a Hostname on Solaris

      How to Change a Hostname on Solaris

      Solaris makes it unreasonably difficult to change an installed server’s hostname. To change the hostname on a Solaris system, edit all of these files: /etc/hosts /etc/nodename /etc/hostname.* /etc/inet/ipnodes When file editing is complete, reboot the server to test the changes and ensure that they operate correctly. Note that changing the hostname only changes the name

    • How to Audit Unix Passwords

      How to Audit Unix Passwords

      To audit Unix passwords, you must compare each encrypted password in the Unix password file with a set of potential encrypted passwords. These potential encrypted passwords are created by encrypting every password in a list of plaintext passwords. This is an example of a dictionary attack. The Unix passwd File Location The traditional location for

    • How to Copy UNIX Files to Windows

      How to Copy UNIX Files to Windows

      For those computer users that have both Unix and Window’s operating systems, you should know that you can easily copy your Unix files from a Unix computer and transfer them to a Windows computer. Using Client for NFS, you can transfer any existing Unix files from your Unix server to a Windows based server. It

    • Basic Unix Commands

      Basic Unix Commands

      The total number of Unix commands is immense. No normal user or system administrator would ever need to know them all. The Unix commands available to you will vary based upon several factors: The version of Unix you are using (FreeBSD, Linux, Solaris, AIX, HP-UX, OpenBSD, etc…) The Unix shell you are using (sh, csh,

    • How to Change an IP Address on Solaris

      How to Change an IP Address on Solaris

      To change an IP address on a Solaris system immediately, use the `ifconfig` command. The syntax for `ifconfig` is: ifconfig <interface> <ip address> <netmask> <broadcast address> If the user does not know his/her network interface names, he/she should use the `ifconfig -a` command to list all of the available network interfaces. Permanently Change an IP

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