getent is a Linux command that helps the user to get the entries in a number of important text files called databases
https://www.geeksforgeeks.org/getent-command-in-linux-with-examples/
Sunday, August 8, 2021
Thursday, August 5, 2021
AWS: EC2: Create Signature from Private Key - EC2 to verify if its the same one
openssl pkcs8 -in ./ProjKey.pem -inform PEM -outform DER -topk8 -nocrypt | openssl sha1 -c
https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ec2-key-pairs.html#verify-key-pair-fingerprints
Wednesday, August 4, 2021
Kubectl - Kubernetes -1
eks@ABCDAWS01:/$ kubectl get pods -n fda | awk '/case-management/{print $1}'
case-management-6b66d59f44-b6fph
case-management-6b66d59f44-b6fph
eks@ABCDAWS01:/$ kubectl get pods -n fda | awk '/case-management/'
case-management-6b66d59f44-b6fph 1/1 Running 0 37m
eks@ABCDAWS01:/$ kubectl get pods -n fda |grep -E 'business|case|platform|output'
business-rules-68b8c55fd4-5gm8k 1/1 Running 0 37m
case-management-6b66d59f44-b6fph 1/1 Running 0 37m
output-generation-74b548d65b-fc44z 1/1 Running 0 37m
platform-7b5c6965c8-s2cv6 1/1 Running 0 36m
AWS : EC2 :Full Troubleshooting List
Connection problems and errors
- Common causes for connection issues
- Error connecting to your instance: Connection timed out
- Error: unable to load key ... Expecting: ANY PRIVATE KEY
- Error: User key not recognized by server
- Error: Permission denied or connection closed by [instance] port 22
- Error: Unprotected private key file
- Error: Private key must begin with "-----BEGIN RSA PRIVATE KEY-----" and end with "-----END RSA PRIVATE KEY-----"
- Error: Server refused our key or No supported authentication methods available
- Cannot ping instance
- Error: Server unexpectedly closed network connection
- Error: Host key validation failed for EC2 Instance Connect
AWS : EC2: EBS : Mounting /Attaching EBS Volume : Duplicate UUID : Issue
sudo mount -o nouuid /dev/xvdf2 /mnt/temp
https://stackoverflow.com/questions/55833917/unable-to-mount-a-volume-on-an-ec2-instance
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