Install redshift on ubuntu 14.04

Redshift is a tool to reduce the brightness and make your display more redness to protect your eyes when you working for too long. Install redshift on ubuntu : $ sudo apt-get install redshift redshift-gtk afterwards, open up redshift (Alt+F2) : redshift-gtk

SSH tunneling to your secured database/RDS through bastion/jump server with forwarded port

$ ssh -f -N -v -t -L 5433:target_host:5432 user@jump_server target_host is the host/database_server/RDS that you want to access that only can be accessed from jump _server or bastion if you’re using AWS jump_server is the host that accessible from you and the only host that can access target_host 5432 is local port (postgresql default) 5433 is the … Read more

Create partition in Linux that size larger than 2TB

Install parted: sudo apt-get install parted Use parted to create partition: parted /dev/sdb Inside parted cli, follow these steps: (parted) mklabel gpt Warning: The existing disk label on /dev/sdb will be destroyed and all data on this disk will be lost. Do you want to continue? Yes/No? yes (parted) unit GB (parted) mkpart primary 0.0GB … Read more

SSH tunneling to your secured server through bastion/jump server with forwarded port

This is a quick guide will show you how to open ssh tunnel to ssh into your target server that can only be accessed from jump server. So this is how to do it: ssh -v -t -L 10443:localhost:20443 <jump_server> ssh -t -L 20443:localhost:443 user@<target_server> jump_server is the host that accessible from you and the … Read more

Start forticlient VPN only with command line

If your VPN client office using forticlient, you might want to run your VPN client with only command line, so you don’t have to see the small window just for connect your servers from home. With this bash script you can run your forclient VPN client only with CLI. Install expect first if you’re using … Read more