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cloud engineer

Copy SSH Key to Server

Here’s the command to copy a secret key to a remote server.

ssh-copy-id user@servername

This assumes you already generated a key.

Windows Route Add

Here’s how to add a route in Windows. Open CMD as Administrator.

route add 10.10.10.10 mask 255.255.255.0 10.10.10.254

To make it persistent, add -p.

route add 10.10.10.10 mask 255.255.255.0 10.10.10.254

To display. Specifies IP 4 only.

route print -4

GCP Web Server

Here’s a quick script to stand up a web server based on Centos image.

gcloud compute instances create [VM-NAME] \
    --zone=[ZONE] \
    --image-family=debian-9 \
    --image-project=debian-cloud \
    --tags=allow-ssh,allow-health-check \
    --subnet=lb-subnet \
    --metadata=startup-script='#! /bin/bash
apt-get update
apt-get install apache2 -y
a2ensite default-ssl
a2enmod ssl
vm_hostname="$(curl -H "Metadata-Flavor:Google" \
http://169.254.169.254/computeMetadata/v1/instance/name)"
echo "Page served from: $vm_hostname" | \
tee /var/www/html/index.html
systemctl restart apache2'

Windows Boot Time

Here’s how to find when a Windows server was last rebooted.

systeminfo | find /i "boot time"

Get-Hotfix

What patches were installed on Windows Server. Run the command below in Powershell as Administrator.

get-hotfix

You can also see it from the Control Panel > Program > Programs and Features > Installed Updates.