Site for admins about operating systems and security
Can you run the Android Operating System OS on a x86 system?
Yes, you have the project Android-x86 (http://www.android-x86.org) which aims to provide complete solution for Android on Eee PC platforms first and then to provide solutions for common x86 platforms as well.
Any Good ADA development environment?
I suggest GNAT Pro, for which there is also an open source version (see ttps://www.adacore.com/gnatpro/comparison).
How do I disable IPv6 permanently on all interfaces?
Open /etc/sysctl.conf with a text editor, and add the following lines.
net.ipv6.conf.all.disable_ipv6 = 1
Then run
$ sudo sysctl -p /etc/sysctl.conf
How to display the headers of a binary file in Linux?
With readelf; for instance:
readelf -e `which sh`
Do you know any good free WYSIWYG editor in Linux?
There is a good one, though it is not open source and you pay for some feature:
BlueGriffon:
http://bluegriffon.org/
How to register and subscribe a system to the Red Hat Customer Portal using Red Hat Subscription-Manager?
Please consult the below Red Hat Link. The key command is subscription-manager:
https://access.redhat.com/solutions/253273
How can I copy a file preserving on destination the modification date and time?
With the option -p like in:
cp -p file /destination/folder
How do I list all installed packages (with emerge) in Gentoo?
How can I check to which package does belong a file in Gentoo?
With the equery command, for instance:
# equery belongs `which emerge`
Is there a network configuration tool in Gentoo?
Aside from common distros commands like ip you can use the TUI tool net-setup.