Fedora 20 Setup mail server for receiving admin alerts

SELinux Alert Browser popped with a dac_override error.

In notifying admin (for my own record so I can look at it later),

evolution needs to be set up.

All notification will be sent to my own computer; thus needs mail server.

http://servers.hostik.com/instructions/rhel-mailserver.htm

followed this procedure to set up.

And more information here,

http://docs.fedoraproject.org/en-US/Fedora/18/html/System_Administrators_Guide/s2-email-mta-sendmail.html

Fedora 20 make nemo instead of nautilus for default file manager

http://forums.fedoraforum.org/showthread.php?t=293444

$ sudo yum install nemo -y
$ nano ~/.local/share/applications/mimeapps.list

add this line
[Added Associations]
inode/directory=nemo.desktop;nautilus.desktop;

save

How to detect / defend against man in the middle MITM attack?

http://security.stackexchange.com/questions/6437/how-would-one-fully-protect-himself-against-man-in-the-middle-attacks

hp tablet tc4200 wireless hardware switch does not work in ubuntu 12.04.4 lts

Initially I thought there was no driver,

Tried to reinstall all the drivers from the hp website in windows.

http://techie-buzz.com/foss/wifi-ubuntu-install-broadcom-drivers.html
This seem irrelevant because my wifi adapter was intel 2200

However this worked.
http://askubuntu.com/questions/9816/wireless-shows-up-as-disabled-how-can-i-get-it-working

on terminal,
$sudo rfkill unblock all

This resolved the problem.
if problem persists, edit /etc/rc.local and add line "rfkill unblock all" above exit 0


More info
 http://ubuntuforums.org/showthread.php?t=1781350&page=2
http://ubuntuforums.org/showpost.php?p=10745874&postcount=4

installing skype on fedora 20

http://www.if-not-true-then-false.com/2012/install-skype-on-fedora-centos-red-hat-rhel-scientific-linux-sl/

this guy also has lots of cool stuff on his blog too

Changing environment variable for fedora 20

$nano ~/.bashrc

add following line

export PATH=$PATH:/path/to/dir

Ctrl+x, save and exit

$source ~/.bashrc

$echo $PATH

http://unix.stackexchange.com/questions/42146/changing-an-environment-variable-like-path-forever

https://ask.fedoraproject.org/en/question/24028/how-to-set-environment-variable-permanet/
difference between per-interactive-shell script / login shell

VirtualBox on fedora 20 kernel driver not installed (rc=-1908)

http://forums.fedoraforum.org/showthread.php?t=237427

su
yum install kernel-devel gcc gcc-c++ make automake
yum groupinstall 'Development Tools'
/etc/init.d/vboxdrv setup

still not working