lsb_release -a
Check RAID status on Ubuntu
Check RAID status:
/sbin/mdadm --detail /dev/md0
Or check with this:
sudo cat /proc/mdstat
This is what a good status will look like:
Personalities : [linear] [multipath] [raid0] [raid1] [raid6] [raid5] [raid4] [raid10]
md1 : active raid1 sdb5[0] sdc5[1]
1485888 blocks [2/2] [UU]
md0 : active raid1 sdb1[0] sdc1[1]
242709888 blocks [2/2] [UU]
unused devices:
The [UU] (I think) indicates the status of both drives in the array, and both are Up
Easy steps for Ubuntu server upgrade
sudo apt-get update sudo apt-get upgrade
Edit /etc/update-manager/release-upgrades, and ensure:
Prompt=normal
(otherwise if its LTS you will only be able to upgrade to the next LTS release if one is available
sudo apt-get install update-manager-core sudo do-release-upgrade
…and follow the prompts.
Hiding Apache2 header info
Add these to your /etc/apache2/apache2.conf then restart Apache:
LoadModule headers_module /path_to/mod_headers.so Header unset Server ServerSignature Off ServerTokens ProductOnly Header unset X-Powered-By