Uly.me

cloud engineer

server

Tomcat Install

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Tomcat requires JRE.

wget jre-8uversion-linux-x64.tar.gz
# or
apt-get install default-jdk

Install Tomcat 8 on Linux.

wget https://mirrors.gigenet.com/apache/tomcat/tomcat-8/v8.5.66/bin/apache-tomcat-8.5.66.tar.gz
tar zxpvf apache-tomcat-8.5.66.tar.gz
cd /opt/tomcat/apache-tomcat-8.5.66/bin/
./startup.sh

Status|Start|Stop|Restart Tomcat.

systemctl status tomcat8
systemctl start tomcat8
systemctl stop tomcat8
systemctl restart tomcat8

Encrypt Samba Share

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Here’s how to turn on Samba encryption on a share.

Edit /etc/samba/smb.conf on the Samba server.

[global]
server max protocol = SMB3
smb encrypt = required 
lanman auth = no

Edit /etc/samba/smb.conf on the Samba clients.

[global]
smb encrypt = required
client min protocol = SMB2
client max protocol = SMB3

To connect.

smbclient -e -m SMB3 //xxx.xxx.xxx.xxx/share-name -U username

Windows Route Add

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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

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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'

Get-Hotfix

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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.