Company Name

  • Network Engineering Skills

    Configured Cisco Routers (2500, 3000, 4000) using RIP, IGRP, OSPF, EIGRP and Switches (5000, 3524, 2900).
    Implementation of DHCP, DNS, FTP, TFTP.
    Implemented traffic filters using Standard and Extended access-lists, Distribute-Lists, and Route Maps.
    Routing Protocol (BGP, OSPF, EIGRP, IGRP, RIP, IS-IS), Routed Protocol (TCP/IP).
    Install and Configuration of DHCP Server, DNS Server, FTP Server, Squid, Web Server On Linux.

  • Computer Programming Skills

    Office Package: Microsoft Word, Microsoft Excel, Microsoft Access, Microsoft PowerPoint, Microsoft Outlook Express.
    Programming Language:Pascal, C, C++, Java, Java Swing, PHP, Dot Net.
    Operating Systems: Windows9X, Windows Server200X, Windows ME, Windows XP, Windows Vista, Windows 7, Linux, MS DOS.
    HTML Editing Tools: Macromedia Dreamweaver, Microsoft FrontPage, Adobe GoLive.
    Graphics Tools: Macromedia Flash, Macromedia Fireworks, Adobe Photoshop, Adobe PageMaker, Adobe Illustrator,SwishMX.

  • Technical Support Specialist

    Install Network Interface Cards NIC s . Setup bindings, IP addresses, WINS, and DNS configurations. Operate, and maintain Local Area Network LAN connectivity using TCP/IP protocol.
    Identify, troubleshoot, and analyze computer related issues. Determine appropriate course of action, and conduct repairs, modifications, and upgrade internal components and peripherals as needed.
    Plan layout of workstation locations and LAN cabling. Coordinate teardown, move, and install of office partitions, desks, and equipment. Install PC workstations, LAN cabling and setup network connectivity.
    Maintained excellent working relationships with customers, field service, sales and marketing people.



Change hostname or Server name of a Linux Machine

Checking your Linux host name

First, see if your host name is set correclty using the following commands:

#uname -n
#hostname -a
#hostname -s
#hostname -d
#hostname -f
#hostname

If the above commands return correctly with no errors then all may be well; however, you may want to read on to verify that all settings are correct.

Normally we will set the hostname of a system during the installation process.

Change the hostname on a running Linux system

On any Linux system you can change its hostname with the command ‘hostname‘.

#hostname

without any parameter it will output the current hostname of the system.

#hostname –fqd

it will output the fully qualified domain name (or FQDN) of the system.

#hostname NEW_NAME

will set the hostname of the system to NEW_NAME. This is active right away and will remain like that until the system will be rebooted (because at system boot it will set this from some particular file configurations – see bellow how to set this permanently). You will most probably need to exit the current shell in order to see the change in your shell prompt.

Permanent hostname change on Debian based Linux systems

Debian based systems use the file /etc/hostname to read the hostname of the system at boot time and set it up using the init script /etc/init.d/hostname.sh

#cat /etc/hostname

debianadmin

So on a Debian based system we can edit the file /etc/hostname and change the name of the system and then run

/etc/init.d/hostname.sh startto make the change active. The hostname saved in this file (/etc/hostname) will be preserved on system reboot (and will be set using the same script we used hostname.sh).

Use sysctl to change the hostname

use sysctl to change the variable kernel.hostname:

Use:

#sysctl kernel.hostname

to read the current hostname, and

#sysctl kernel.hostname=NEW_HOSTNAME

to change it.

You can use the same process for all debian based distributions and other linux machines

This entry was posted in Linux.

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