Linux Ubuntu Skype : Too Much Noise at Other End

If you are using Ubuntu operating system and other person is not able to hear you because of too much noise at his/her end. If every thing is fine at his/her end then this may be issue of your sounds settings. Here is a small tip to fix noise distortion for the person at opposite end.

In your Ubuntu Operating system, open Sound Settings. You can open this using right click at sound icon on panel or go to system settings and click on sound.
Here Under Input Tab, make the input volume selection minimum (7 to 8% of total value)
Make sure you have done this in Input tab, leave default settings for output tab.

This should solve your noise issue. 

Sort all files of present working directory and sub directories by modified date and time

If you want to sort all files of a folder and its subfolders by modified date and time, Here is the command.

find . -type f -printf "%T@ %Tc %p\n" | sort -n

Latest modified file will be last in the sequence.

If you want to reverse the sequence i.e. latest modified should be on top.

find . -type f -printf "%T@ %Tc %p\n" | sort -nr

Dot (.) indicates the present working directory. You can use absolute path also.

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

https://localhost:10000/webmin/edit_referers.cgi

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