Linux: remove unwanted services from the system start-up

Default there are lots of services and programs which are starting to work while system start-up. It’s time to disable these unwanted.

Listening Network Ports

Two simple… but so useful commands for all kind of linux/unix servers administrators.

Update Ruby, Rails and gems

Few simply steps for updating Ruby, Rails and gems on your OS. I was doing it on Mac OS X, but it should works on UNIX-based systems as well.

Apt-get package management in ubuntu

Everyone (each ubuntu user) knows how to install new package, search a package or remove one. However not everyone knows how to do something else.

Controlling Buffer Overflow Attacks by limiting settings in nginx

You have to limit few things in your nginx.conf: buffer size, body size and timeouts.

Linux server & security: SELinux

How to secure your server against burglary? By installing and turning on the right software. SELinux is one of these software.

Build firewall on server (ubuntu)

I would like to secure my VPS. That’s why I had to find some more informations about firewalls. The most interesting idea… “firewall” via iptales. However managing iptables is a litlle bit complicated, so I decided to use UFW.

“Starting nginx: Enter PEM pass phrase:” – not any more

We generated new ssl key. This time it’s from Gigaone. I added it to site’s config file and after restart of nginx I have a message: “Starting nginx: Enter PEM pass phrase:”. Everything is fine, however I don’t want to fill my password after each restart of nginx. Time to do something with it.

Automounting doesn’t work, I need to mount manually

I don’t why, but automounting in my Ubuntu 9.10 doesn’t work. I couldn’t find any solutions, so I have to mount my usb flash drive manually.

Allow short form of PHP’s open tag

So easy, right? Yes, of course. However I forgot about it. That’s why RSS feeds to two of my blogs (this one and blog.karolzielinski.com) didn’t work for a while. Ehhh… fixed. Now, I will describe how to allow this form.