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.
https://localhost:10000

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
https://ip-of-the-server:10000

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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