OPS345 Lab 6

• Email overview
• Create a new VM named 'email' in vpc-ops345, 10.3.45.12, with an extra 4GB EBS volume, ops345sgemail, email.asmith15.ops345.ca
• ssh only from ops345sgprivate
• add an iptables rule on router to forward port 2212 to email:22, don't forget to edit ops345sg
• email_public_ip
• same instructions as for vg_www-lv_www but vg_email-lv_email, mounted on /home
• but also mount it on /tmp/home, and move everything from /home to /tmp/home before rebooting
  • can lose access to ssh key if don't do it right - see what happens if mount on /home without

[root@email ~]# vi /etc/fstab 
[root@email ~]# mount /home/
[root@email ~]# ls /home/
lost+found
# try to ssh now, it won't work
[root@email ~]# umount /home/
[root@email ~]# mkdir /tmp/home
[root@email ~]# mount /dev/mapper/vg_email-lv_email /tmp/home/
[root@email ~]# cd /home/
[root@email home]# ls -a
.  ..  andrew
[root@email home]# mv andrew/ /tmp/home/
[root@email home]# cd /
[root@email /]# ls /home/
[root@email /]# ls /tmp/home/
andrew  lost+found
[root@email /]# umount /tmp/home/
[root@email /]# ls /tmp/home/
[root@email /]# ls /home/
[root@email /]# mount /home/
[root@email /]# ls -a /home/andrew/
.  ..  .bash_history  .bash_logout  .bash_profile  .bashrc  .ssh
[root@email /]# reboot # and confirm can still log in. if not - have to rebuild email vm