Virtualized ARM on Ubuntu

I was finding articles/wikis how to emulate an arm linux (armel) on centos/ubuntu, then I found this from MDN: https://developer.mozilla.org/en-US/docs/Developer_Guide/Virtual_ARM_Linux_environment.

This article uses an old release by linaro which based on Ubuntu natty that can no longer be found on http://ports.ubuntu.com.
As Ubuntu says, armel would not be supported, that’s why the latest code name of ubuntu supporting armel is begin with ‘Q’.

I found another server release and a new nano, tried that with similar commands, notes are below:

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Virtualized ARM on Ubuntu by @sskaje: https://sskaje.me/2013/12/virtualized-arm-ubuntu/

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Notes: PPTP/L2TP Server on Ubuntu

From: https://help.ubuntu.com/community/PPTPServer and https://help.ubuntu.com/community/L2TPServer

This is an integrated & simplified intro about installing pptp/l2tp server on ubuntu 12.04.

Install

pptpd, xl2tpd, openswan are needed.
ppp should be installed by default, you can apt-get install ppp just for sure.
dnsmasq is needed to simplify dns issue.
So, just type commands:

Environment

Server ip is assigned as: 192.168.210.1
Client ip are in : 192.168.210.100~192.168.210.200

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Notes: PPTP/L2TP Server on Ubuntu by @sskaje: https://sskaje.me/2013/10/notes-pptpl2tp-server-on-ubuntu/