Install webmin on Linux - CentOS, Fedora, Debian or Ubuntu

Download webmin from here.

1) If your Linux distribution is yum based like CentOS or fedora,
Download rpm file of webmin and install it using 
$ sudo rpm -ivh webmin-installation-filename.rpm
If your Linux distribution is dpkg(deb) based like ubuntu or debian,
Download deb file of webmin and install it using 
$ sudo dpkg -i webmin-installation-filename.deb

2) Now webmin is installed and we can access it using port 10000, Open it.

3) If your firewall prevents to access webmin using other system of same LAN, you should define port 10000 in iptables.
Add following line in /etc/sysconfig/iptables
-A INPUT -m state --state NEW -m tcp -p tcp --dport 10000 -j ACCEPT

4) Restart iptables
$ sudo service iptables restart

5) Now you can access it using

6) username, password of webmin is same as root's username & root's password of the server.

webmin - Security Warning

Warning! Webmin has detected that the program 
https://IP-address:10000/right.cgi?open=system&open=status was linked to from an unknown URL, which appears to be outside the Webmin server. This may be an attempt to trick your server into executing a dangerous command.

First Method :
  • Login as root, and edit the /etc/webmin/config file.
  • Find the line referers_none=1 and change it to referers_none=0.
  • Save the file.
Second Method :
  • Login to Webmin normally.
  • Go to the Webmin Configuration module.
  • Click on the Trusted Referrers icon.
  • Check the Trust links from unknown referrers box, and click Save.
Final Method :
If above both methods do not work, follow this.
Open following link in chrome
Select radio button NO for Referrer checking enabled?
Now try again.

webmin - Error - Bad Request

Open webmin url with https
The correct url is https://localhost:10000/webmin

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