Allow ICMP (ping) in Oracle Cloud Updating Kernel on Oracle Linux with Ksplice See Cloud […]
Allow ICMP (ping) in Oracle Cloud
Oracle cloud do not allow ICMP/ping to compute instances. To enable ping, you need to enable ICMP in the security group. On your compute instance details page, you will see “Virtual Cloud Network”. Click on Virtual Cloud Network link, that will take you to page with VPC details. Scroll down, you will see subnet. Click […]
Connect to Google Cloud SQL
Amazon S3 CORS
To enable CORS for Amazon S3 bucket, add
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<?xml version="1.0" encoding="UTF-8"?> <CORSConfiguration xmlns="http://s3.amazonaws.com/doc/2006-03-01/"> <CORSRule> <AllowedOrigin>*</AllowedOrigin> <AllowedMethod>PUT</AllowedMethod> <AllowedMethod>POST</AllowedMethod> <AllowedMethod>DELETE</AllowedMethod> <MaxAgeSeconds>1800</MaxAgeSeconds> <AllowedHeader>*</AllowedHeader> </CORSRule> </CORSConfiguration> |
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Google Cloud App Engine
To list instances in Google Cloud App Engine, run
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gcloud app instances list |
To create an application
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gcloud app create |
To deploy an application
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gcloud app deploy |
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Google Cloud SQL
To create a Google Cloud SQL database, run
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gcloud sql instances create INSTANCE_NAME_HERE --activation-policy=ALWAYS --tier=db-n1-standard-1 |
INSTANCE_NAME_HERE = this can be anything, lowercase letters, 0-9, for identification purpose only. db-n1-standard-1 => this is size of the server, you can change it as needed. To create a Database, run
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gcloud sql databases create DB_NAME_HERE --instance INSTANCE_NAME_HERE |
To create a User, run
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gcloud sql users set-password root --host=% --instance INSTANCE_NAME_HERE --password=PASSWORD_HERE |
To list all google cloud SQL instances, […]
Set Permanant hostname on AWS EC2 CentOS 7 server
On AWS EC2 when you boot, hostname set something like ip-172-31-41-172.eu-central-1.compute.internal To chaneg this, run
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hostnamectl set-hostname --static HOSTNAME_HERE |
Example
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hostnamectl set-hostname --static server1.serverok.in |
To disable change of hostname, run
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echo "preserve_hostname: true" > /etc/cloud/cloud.cfg.d/99_hostname.cfg |
Now reboot your server with
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reboot |
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Resize Amazon EC2 Boot Disk
Once you resize disk in Amazon AWS console, it get auto resized on reboot. Some times this won’t happen, you have to manually resize the disk. To resize disk, do the following. 1) Take a snapshot of the disk 2) Create a new server in same availability zone as current server. Lets call it tmpServer. […]
VMWare ESXI add SSH key
To enable password less SSH login on VMWare ESXI server, add your SSH key to file
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/etc/ssh/keys-root/authorized_keys |
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VMWare esxcli
To list all running VM, run
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esxcli vm process list |
To list all installed software
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esxcli software vib list |
Example
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[root@server:~] esxcli software vib list | grep esx-ui esx-ui 1.33.1-12086396 VMware VMwareCertified 2019-02-24 [root@server:~] |
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