Category: Misc

RFC 1918

Here’s the original document published back in February 1996 detailing the allocation for private internet addresses. The Internet Assigned Numbers Authority (IANA) has reserved the following three blocks of the IP address space for private internets. RFC 1918.

10.0.0.0        -   10.255.255.255  (10/8 prefix)
172.16.0.0      -   172.31.255.255  (172.16/12 prefix)
192.168.0.0     -   192.168.255.255 (192.168/16 prefix)

GCP Compute Disks Move

Here’s how to move a GCP disk between zones.

  1. Make sure disk is detached from instance.
  2. Use the GCloud Disk Move command.
# Detach disk from instance
gcloud compute instances detach-disk server --disk=server-boot
# Move disk from us-central1-b to us-central1-f
gcloud compute disks move example-disk-1 --zone us-central1-b --destination-zone us-central1-f