As explained on the website “unique and rotated local super user or administrator passwords for environments where it is not possible or not appropriate to disable these local accounts“. I tested as a proof of concept how to: setup a SHIPS server on CentOS7 configure SHIPS folder and ACL’s for…
POC of drdb replication
My notes of a quick drdb test… The Distributed Replicated Block Device (DRBD) provides a networked version of data mirroring, classified under the redundant array of independent disks (RAID) taxonomy as RAID-1. Showing status, add a file and check target… After initial sync: Create filesystem and some data: Switch roles…
zfsbackup-go test with minio server
Recording my test with zfsbackup-go. While I am playing around with backup/DR/object storage I also compared the concept here with a previous test around restic/rclone/object storage. In general ZFS snapshot and replication should work much better with file systems containing huge numbers of files. Most solutions struggle with millions of…
OCI Bucket Delete Fail
If you have trouble deleting an object storage bucket in Oracle Cloud Infrastructure you may have to clear old multipart uploads. The message may look something like this: Bucket named ‘DR-Validation’ has pending multipart uploads. Stop all multipart uploads first. At the time the only way I could do this…
Restic scripting plus jq and minio client
I am jotting down some recent work on scripting restic and also using restic’s json output with jq and mc (minio client). NOTE this is not production just example. Use at your own risk. These are edited by hand from real working scripts but since they are edited they will…
Restic json output and jq
Restic has the ability to show output in json. Here is how I used it for some CSV type reporting I needed on backup jobs. Example json output. With @csv filter. I needed double quotes and could not figure out how to tell @csv filter to quote so below workaround…
Linux Screen Utility Buffer Scrolling
If you use the Linux screen utility a lot for long running jobs etc you may have experienced scrolling issues. The quickest way is to try Control-a and then Escape. You should now be able to use Up/Down keys or even PgUp/PgDn. Press Escape to exit scrolling. In my case…
Bash Read Array From Config File
I was recently needing to read values from a configuration file into bash and had some success with reading json with jq into bash array(s). However I resorted to a non json version which worked well. Something like this. Config File Code Run
Bash Array Dynamic Name
Sometimes you want to have dynamic array names to simplify code. Below is one way of making the array name dynamic in a loop. And output like this.
Boto3 DynamoDB Create Table BillingMode
If you had issues when trying to create a DynamoDB table using On-Demand mode you probably need to upgrade boto3. I was using the apt repository version of python3-boto3 (1.4.2) and getting this message below. Unknown parameter in input: “BillingMode”, must be one of: AttributeDefinitions, TableName, KeySchema, LocalSecondaryIndexes, GlobalSecondaryIndexes, ProvisionedThroughput,…