Protecting files from unwanted deletion is very important security on the tasklist of Unix Administrators. On Linux boxes you can use the chattr command and that works ine on all my Ubuntu based servers. On FreeBSD, this command doesn’t exist. An alternative we use is the chflags command. Let’s give you some examples how chattr work […]
"Hi Oltjano! How are you? Can you help me to create an executable file in Ubuntu? I want it to start my lamp server, I want to save time and I don't like to type long commands in my terminal." This was a message from my friend that is learning web development in his Ubuntu […]
My intent is to introduce new Linux users to the Linux command line shell and make them feel comfortable with the command line environment. What does it happen when you click a button with your mouse? When you click a button a command is executed and interpreted by the shell. What is a shell? A […]
The minimum you can do to protect yourself is to avoid weak passwords. In most cases people do not know what weak passwords are and why are called such. Passwords that can be easily guessed or cracked are called weak passwords. Many security breaches worldwide are often the result of poor password choices. These poor […]
Now that we finished writing the TCP server it is time to write a simple client which will connect to the server. It is very simple to create our client with the socket library and now we have enough knowledge to do it. Our client will open a connection to our server on 113 port, […]
This article is for people that have good knowledge in Python and want to learn and practise new skills and do some network basics. Information about sockets is very important when using Python for network scripting. Before we can create and use sockets we have to import the socket library as we explained and showed […]
This article provides a short introduction to the Python programming language. Python is a free and open source programming language which is getting very popular . Statistical analysis and facts show that Python is taking the lead as one of the most popular programming languages available.