Pre-confluence:Ceph testing and development cluster: Difference between revisions

Revision as of 09:33, 23 March 2023

The *Ceph testing and development cluster* is a desktop Ceph cluster built using old lab HP Elitedesk mini PC's
It is located in Peter's cubicle
The cluster itself is on a private subnetwork behind one of the PC's (the top one in the stack) which functions as a gateway
The gateway is cephtest.cse.unsw.edu.au (129.94.173.173) and can be reached by SSH from CSE's trust, untrust, and server subnetworks
The cluster nodes should be added to /etc/hosts on cephtest. The cluster nodes should have no domain component in their names
The gateway provides access by the cluster nodes to the world using NAT
The cluster nodes connect to the gateway (cephtest) using a switch filched from the server room (ex: "smartswitch"). The switch has been reset to factory defaults and therefore does not operate in any sort of managed mode

Use the USB boot key on top of the cluster
Allocate 512M for EFI, 50G for root, and 1G for swap
Tell the installer to set up SSH server ONLY
Install (and configure) unattended-upgrades, systemd-timesyncd, rsync, man-db, tcpdump lsof, strace
Set UsePAM to NO in sshd_config
Add "selinux=0 audit=0 ipv6.disable=1" to /etc/default/grub and run "grub-mkconfig -o /boot/grub/grub.cfg". Reboot

@@ Line 17: / Line 17: @@
 * Use the USB boot key on top of the cluster
 * Allocate 512M for EFI, 50G for root, and 1G for swap
-* Tell installer to set up SSH server ONLY
+* Tell the installer to set up SSH server ONLY
 * Install (and configure) unattended-upgrades, systemd-timesyncd, rsync, man-db, tcpdump lsof, strace
+* Set UsePAM to NO in sshd_config
+* Add "selinux=0 audit=0 ipv6.disable=1" to /etc/default/grub and run "grub-mkconfig -o /boot/grub/grub.cfg". Reboot
 == Network settings ==