cloud engineer
by Ulysses
Here’s a quick way to start a web server using Python (not recommended for production).
If you want to use python3, you may have to use explicitly use python3.
Check what versions you have first.
python --version python3 --version |
python --version python3 --version
Start web server using port 8080 in the current directory.
python -m http.server 8080 |
python -m http.server 8080
If you want an alternate directory, use this -d option.
python -m http.server 8080 -d /tmp |
python -m http.server 8080 -d /tmp
It’s a great tool for quick downloads.
by Ulysses
Tomcat requires JRE.
wget jre-8uversion-linux-x64.tar.gz # or apt-get install default-jdk |
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 |
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 |
systemctl status tomcat8 systemctl start tomcat8 systemctl stop tomcat8 systemctl restart tomcat8
by Ulysses
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 |
[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 |
[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 |
smbclient -e -m SMB3 //xxx.xxx.xxx.xxx/share-name -U username
by Ulysses
Here’s the command to copy a secret key to a remote server.
ssh-copy-id user@servername |
ssh-copy-id user@servername
This assumes you already generated a key.
by Ulysses
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 |
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 |
route add 10.10.10.10 mask 255.255.255.0 10.10.10.254
To display. Specifies IP 4 only.
route print -4 |
route print -4
by Ulysses
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: $vm_hostname" | \ tee /var/www/html/index.html systemctl restart apache2' |
gcloud compute instances create [VM-NAME] \ --zone=[ZONE] \ --image-family=debian-9 \ --image-project=debian-cloud \ --tags=allow-ssh,allow-health-check \ --subnet=lb-subnet \ --metadata=startup-script='#! /bin/bash apt-get update apt-get install apache2 -y a2ensite default-ssl a2enmod ssl vm_hostname="$(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'
by Ulysses
Here’s how to find when a Windows server was last rebooted.
systeminfo | find /i "boot time" |
systeminfo | find /i "boot time"
by Ulysses
What patches were installed on Windows Server. Run the command below in Powershell as Administrator.
get-hotfix |
get-hotfix
You can also see it from the Control Panel > Program > Programs and Features > Installed Updates.