Category: L.A.M.P.

How to check the disk usage of your VPS

The df utility displays the disk space usage on all mounted filesystem. The -T option prints the filesystem type as well. By default, df measures the size in 1K blocks, which could be a little difficult for a desktop user to decipher. Use the -h option to get the more understandable output: The VPS system

Renew the SSL Certificate for

I just renewed the SSL certificate. The cheapest DV SSL certificate I found is from I paid by paypal. The price is so good. US$7.90 for two years. Comodo PositiveSSL. After I installed the certificate on my blog. I check the certificate by clicking on the lock icon on the address bar. It is

How to get a perfect SSL Labs score

It is easy to get an A+ on your website. But it is a little bit hard to make a 4 parts, Certificate, Protocol Support, Key Exchange, and Cipher Strength, to be 100%. Most of time, I got A+ rating of my site. For individual scores, the last two are 90%. Let me break down.