Windows operating system provides services in order to complete task in the foreground. There may bcome different type of job services in order to accomplish tasks like printing, network authentication, encryption etc. Windows provides a lot of services by default. But more services can be added by third party applications or other tools. services.msc is a shourtcut to service management console. In this tutorial we will look how to open...
Linux distributions are using package managers in order to install, update and remove applications. In the old days there are very less package managers those are not so good. In to day they are very talented. apt-get command not found is command error type which is shown while installing, updating and removing applications. In this tutorial we will look some error cases and solutions. Error As an example when try...
cron is very useful tool and mechanism to schedule jobs in Linux operating system. cron can run scripts, commands, binaries if set properly. But in some cases there may be some mis-configuration or unexpected behavior. So we may not be sure whether cron runs like we want. We can check cron log in order to get more detail about job. By the way more details about cron can be learned...
Nginx web server provides a lot of different configuration about the web service. Some of the configurations are used very often. server_nameis one of them which can be miss interpreted. Single Domain Name In the old days internet was so little. There was less site and domain names than today. System administrators were prefer to assign a single domain to a single web server like Apache etc. Multiple Domain Names...
Binaries are created by building or compiling source like C, C++ etc. In simple applications we can build by using the compiler like gcc directly. But this is inconvenient if the application is big and have a lot of source code, configuration file and build options. Developers generally prefers build systems like make but there is alternative named cmake which is popular in Linux ecosystem too. About CMake is an...
Epoch time is used in Linux systems regularly to express given date and time. Epoch time may be very strange for Non-Linux users. But epoch time uses veyr simple logic to calculate date and time. Start Of Date and Time Epoch time uses reference point to calculate date and time. Reference point for epoch time is 01.01.1970 or the first day of the year 1970 . The reference time is...
Linux is mostly known with its distributions or distros but the reality is that Linux is just a kernel or core of the operating system. All user space and some of the operating space related tools are provided by distributions. We can actually call distribution as a operating system. Linux is very different from Windows where with its open and dynamic architecture we can create different type of operating systems...
Socket is a mechanism which provides connection between two process or system by using network stacks. In a more clear way we can use sockets communicate and transfer data between two system. As we know Unix and Linux systems works on file logic. Everything in operating system is file where network connections are files too. Use Cases Sockets can be used in different cases. We can use socket to transfer data...
