I tried a IPv6 only VPS. It has no IP v4 address.
It is always error connection when I tried to use an IP v6 to connect it.
Here is some new knowledge for me.
Use a pair  around the IPv6 address when using it in the Browser address .
The correct format is: https://[2001:19f0:8001:ae7:5400:1ff:fe93:a764]:10000
To enabled IPv6 support.
add a line
2) Install Socket6 perl module
apt install libsocket6-perl
Then restart webmin service.
Now I can enter the webmin which is IPv6 only webmin.
I have an VPS at
Burst.net. I pick up Centos 5.5 installation. To make MovableType work on it, I have to install Perl module Image::Magick. The image thumbnail feature will be disabled if no Image::Magick installed.
Every time I do it, I always have the problem to install it. Now I recorded here for reference.
Here is the official guide for
installation of ImageMagick. I follow the instruction, but it is still not working.
So I use the way suggested on above link.
The handy notes provided by John Walker. The rest of this post are based on this notes mostly.
How to find perl module and install it under Ubuntu?
1) You have to find the package of this module.
For example, I want to install GEO::IPfree module for enable IPfree plugin in Awstats.