#################################
##
## Get all packages up2date and 
## clean out any cruft in the 
## local packages
##
#################################
yum -y update ;
yum clean all ;


#################################
##
## Get rid of the signs I was 
## tinkering with this
##
#################################
[[ -a /etc/issue-original,v ]] && unlink /etc/issue-original,v ;
[[ -a /etc/issue,v ]] && unlink /etc/issue,v ;
ci -u /etc/issue ;



#################################
##
## Remove the host-keys to they
## will be regenerated when the
## new VM is spun-up
##
## Also make sure I remove any 
## personal keys I may have been
## using while setting up
##
#################################
find /etc/ssh/*host* |xargs unlink ;
find /root/.ssh/ -type f |xargs unlink ;
find /home/*/.ssh/ -type f |xargs unlink ;



#################################
##
## Get rid of the use of UUID in 
## FSTAB and any NIC configuration
## so the new VM can find then when
## the UUIDs are regenerated 
##
## Since we use LVM,only the /boot
## slice is a direct slice reference
## the rest are logical volumes
##
#################################
sed -i -e 's/UUID=[0-9a-f-]*\s/\/dev\/sda1\t/' /etc/fstab ;
sed -i -e '/^UUID=[0-9a-f-]*.*/d' /etc/sysconfig/network-scripts/ifcfg-eno* ;
sed -i -e '/^UUID=[0-9A-F-]*.*/d' /etc/sysconfig/network-scripts/ifcfg-eno* ;
find /etc/udev/rules.d/ -iname '70*net*' |xargs unlink ;


#################################
##
## Let the NTP daemon know to 
## expect a big jump in time,so 
## he doesn't freak out. Also let
## him know that if the walls melt,## it is the acid,speaking and 
## he'll be alright
##
#################################
[[ -a /etc/ntp.conf ]] && \
  [[ "$(head -1 /etc/ntp.conf)" == "tinker panic 0" ]] || \
  sed -i -e '1itinker panic 0\n' /etc/ntp.conf ;



#################################
##
## Trunate the command-histories
## because the learning-process
## can contain some embarrassing
## mistakes,some of which are 
## also bad opsec
##
#################################
>/root/.bash_history ;
>/home/*/.bash_history ;
>/root/anaconda-ks.cfg ;



#################################
##
## Lastly,instruct the OS to redo
## the initial setup and put back
## that new-machine-smell
##
#################################
sys-unconfig ;