Outsourcing IT resources has long since become the standard in many companies. The decisive reason for this is the simple scalability of rented cloud resources, which offers a great solution to the fast-moving business world. However, managing this kind of infrastructure involves a lot of work. How the IaC-Tool Terraform can help reduce this effort is explained in this article.
Microsoft has released a new version of its operating system for servers, and Windows Server 2019 comes with improvements over the previous version. More security, more functionality, easier usability, more support for Azure, Kubernetes and Linux – Windows Server 2019 has exciting new features in store. What specifically are these changes?
In order to edit text files or receive source codes from software or websites, you require a text editor. Whether you’re using Linux, Windows, or Mac: the majority of operating systems these days already have them installed by default. There are also editors like Vim, which have a wider range of functions and simplify working with the confusing lines of code.
Various computer networks are connected with one another via the internet. In order to build up such connections, both the sending as well as the receiving systems have to provide transfer interfaces, or ports. Netstat allows you to find out which ports are opened by your own system and which active connections exist — all of this helps reduce the risk of undesired access attempts.
Double is better, especially when it comes to data backups. Backups shouldn’t only contain important files like documents, tables, presentations, or videos. Generate a comprehensive storage image of your entire system with the help of image-based backup tools and completely restore it including configurations in the event of total failure. Find what makes a good image tool and which functions you...
Process managers can give experienced computer users and administrators an accurate overview of which programs and services are taking up the system’s capacity. Classic command-line tools are confusing, and can only be controlled with complicated commands. For Unix-like systems, such as Ubuntu, the task manager htop, with its text interface, is a first-class alternative. It can help inexperienced...
Since the first version, Linux kernel has been implementing packet filter modules, with which filter tables can be created. However, additional programs such as iptables are required to configure the rule set. In our tutorial, we present the free software for the Linux kernel 2.4 and 2.6 and give you a little insight into how it all works.
The log files of web servers and cloud services reveal a lot about the users that access them. They contain information about which browser or operating system is being used, which search terms have been entered and how many different pages a user has accessed, for example. Since manually analyzing these extensive text files is nigh on impossible, you can use log file analysis programs such as...
Archiving and compressing files contributes positively to the security and stability of a system. For Linux and other unix-like systems, there are countless free programs with which you can create unaltered or compressed archive files over the command line and extract them as well. One of the classic packing programs for Linux is tar. Today, the tool still counts as one of the leading archiving...
IT departments are not to be envied: all devices, servers, databases, etc., must not only be integrated into the network, but also work at any time. In order to prevent any problems that might arise in advance, Nagios is the monitoring tool you need in your standard IT repertoire. What makes the open source solution so special and what are the alternatives?
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