Reinstall Windows VPS into Linux with iPXE network boot

3 minute read

This November I found a discount from one of my favorite VPS providers, NETfront. They offered Linux VPS with 2 vCPUs and 2 GB RAM at HK$56/mo, and also Windows VPS with 4 vCPUs and 4 GB RAM at HK$49/mo. Looks strange, right? Why buy the crappy Linux VPS when you can have a better configuration w...

Secure site-to-site connection with Linux IPsec VPN

15 minute read

Linux has a built-in framework for Internet Protocol Security (IPsec), which is often combined with other tunneling technologies (e.g. L2TP and GRE) to create secure cross-site network connections. As an innovative attempt to a lab in this semester’s Network Security course, which was designed to...

Access your Raspberry Pi remotely with SSH

3 minute read

Do you have a personal server at home but can’t access it from work or travel because your home doesn’t have a public IP? If so, then, this article is what you’re looking for.