How do I sync two ubuntu folders which are in different servers configured in aws?

Question

I have set up 2 ubuntu instances in aws. How do I sync /usr/ubuntu in both the machines?

The question that is "duplicate" is now about Ubuntu instances in AWS per se... — Ted Cahall, Dec 14 '20 at 23:39

score 2 · Answer 1 · edited Dec 15 '20 at 19:40

2

You can use rsync command to sync two directories, e.g:

rsync -avzhe "ssh -i yourkey.pem" /usr/ubuntu ubuntu@ec2ip:/usr/ubuntu

edited Dec 15 '20 at 19:40

Ted Cahall

103

answered Mar 26 '18 at 09:39

Rakesh C

131

The user in Ubuntu is "ubuntu" and not root. You should add double quotes around the ssh up to the pem file. – Ted Cahall Dec 14 '20 at 23:33
rsync -avzhe "ssh -i mypemfile.pem" /home/ubuntu/bin/ ubuntu@ip-1-1-1-1.ec2.internal:/home/ubuntu/bin/ (make sure ssh is set up, using internal host IPs, internal host IPs are added to the security group) – Ted Cahall Dec 14 '20 at 23:36

score 0 · Answer 2 · answered Mar 26 '18 at 09:51

This question has at least two answers.

If you need periodically sync your folders, you can use rsync.

If you need persistent sync and /usr/ubuntu is distinguished disk partition, then you can use DRBD. It's like Net-RAID. Describe and documentation about DRBD - DRBD official site.

score 0 · Answer 3 · answered Mar 26 '18 at 10:18

0

Set up one of the instances as an NFS server that exports the directory for the other instance to mount.

answered Mar 26 '18 at 10:18

Kusalananda

333,661

How do I sync two ubuntu folders which are in different servers configured in aws?

3 Answers3