Appliance Administration of Webmin

Owned by Daniel Dold (Unlicensed)
Last updated: Feb 06, 2014
2 min read

Get the appliance on the network

Connect to the server with a keyboard and monitor - all you will see is a terminal
Also enter a ethernet cable into port 1 at the back of the server 

  • enter the command - vi /etc/sysconfig/network-scripts/ifcfg-em1 
    Note that em1 is the name of the port that I have my ethernet cable plugged into
    To find out the name of the port you wish to configure enter the command ifconfig - this will list all of the interfaces on the server

    When on the page you will see information in the following order;
    DEVICE=em1
    HWADDR=XX:XX:XX:XX:XX:XX
    Type=Ethernet
    UUID=XXXX-XXXX-XXXX-XXXX
    ONBOOT=yes
    NM_CONTROLLED=yes
    BOOTPROTO=static
    IPADDR=XX.XX.XX.XX
    NETMASK=XX.XX.XX.XX

    The only information you need to change is the IP Address and the Netmask
    To do this enter the following;
    • Press I on the keyboard to enter insert mode
    • Scroll to IPADDR with the keyboard and delete the XX.XX.XX.XX and enter your own IP Address
    • Next scroll to NETMASK and delete the XX.XX.XX.XX and enter the correct netmask
    • Press esc to exit Insert mode
    • Then press :wq to save your new changes 


  • Next configure the Default Gateway.
    This is done the very same way as adding your IP Address but it is done in a different script.
    Type the following command -  vi /etc/sysconfig/network
    You will see the following information;
    NETWORKING=yes
    HOSTNAME=hostname

Now enter the following;

    • Go to Insert mode again by pressing I
    • Scroll down to just underneath HOSTNAME
    • Enter GATEWAY=XX.XX.XX.XX - where the X's are the Default Gateways IP Address
    • Press esc to get out of Insert mode
    • Press :wq to save your results 
  • Next add DNS

Type the following command - vi /etc/resolv.conf

Now enter the following;

    • Press I on the keyboard to enter insert mode
    • Enter nameserver=XX.XX.XX.XX - where the X's are DNS's IP Address
    • If you have more than one DNS server just go to the next line and repeat the same command only changing the IP Address
    • Press esc to get out of Insert mode
    • Press :wq to save your results 

OR

Go back to step 1 and enter vi /etc/sysconfig/network-scripts/ifcfg-em1 

    •  Press I on the keyboard to enter insert mode
    • At the bottom enter DNS1=XX.XX.XX.XX where XX.XX.XX.XX is the IP Address of the DNS
    • If you have more than one DNS just enter DNS2=XX.XX.XX.XX underneath and so forth for all the DNS's you may have on your system
    • Press esc to get out of Insert mode
    • Press :wq to save your results 

 

When all that is done type sudo service network restart

To test connectivity try pinging a website - ping www.google.com
If it pings then you are connected to the internet 

Accessing the Webmin UI

Access the Webmin UI by entering the following URL into your web browser <Server_IP_Address>:10000

Accessing the RuBAN UI

Access the RuBAN UI by entering the following URL into your web browser <Server_IP_Address>:58000/eem/eem.html 

Change the firewall rules

Go to the Webmin UI
> Networking > Linux Firewall > Add Rule (The topmost one)

  • Rule Comment - What you want to call it
  • Action to take - Accept 
  • Network Protocol - Equals, TCP
  • Destination TCP or UDP Port - Equals, 58080
  • Create
  • Apply Configuration

This allows the server to connect with a TCP protocol to a destination port of 58080
That is how easy it is to configure your firewall


Enable/disable SSH

Go to the Webmin UI
> Servers > SSH Server > Stop Server - this stops the SSH server
> Servers >SSH Server > Start Server - this starts the SSH server