Linux, Ubuntu, Debian, Mint, CentOS Tutorials
Cron Job is used to execute and run different applications, scripts, commands, and tasks at the specified time and intervals in Linux distributions. List and Display Current User Cron Jobs with crontab Command The crontab is the official command in order to manage cron jobs. The crontab command can be also used to list and … Read more
OpenSSL libraries are required to build OpenSSL-based applications. While trying to build by using gcc with openssl library and function the -lssl option is used. But you may get an error like “foo.cpp:21:25: error: openssl/bio.h: No such file or directory” which means the openssl library can not be found or not installed. In this tutorial, … Read more
Certbot can be used for different SSL/TLS related certificate operations. Certbot provides free SSL/TLS certificates in order to be used with the HTTPS connections. The “certbot renew” command is used to renew existing SSL/TLS certificates. Every SSL/TLS certificate has an end of time. By using the “certbot renew” command the certificate can be renewed which … Read more
The “Read-only file system …” is an error that is related to the file system. This error may occur in different situations for different reasons. This error simply expresses that the target file system is mounted as read-only mode and it can not be written or changed. Read-only File System Error Cases There may be … Read more
Linux is a command-line operating system. As a command-line or shell-based operating system, it provides a different shell in order to use, manage and execute commands. The sh is a popular term and shortcut used to describe the Bourne shell in Linux. Bourne shell is a very simple shell that is provided with most of … Read more
SSH or Secure Shell is a very popular and secure protocol used to connect and sent commands to remote systems in an encrypted way. SSH also has other powerful features like proxying traffic from the client to the remote server. This feature is also called SSH Tunneling. The client connects to the remote SSH server … Read more
Linux bash can be used to run and execute scripts, programs, applications, and commands in a fast and practical way. When a script, program, application, or command is tried to be executed there may be errors like “Permission Denied“. This error can be caused for different reasons. In this tutorial, we list some solutions to … Read more
Linux Bash provides the scripting capabilities which is very familiar with programming languages. By using the Bash shell complex applications can be developed. For example, years ago a lot of CGI web applications are developed with the Linux Bash scripting language. But while developing bash scripts there are a lot of pitfalls because it is … Read more
SMB is a popular protocol used to share files over the network. Even it is created for Windows operating systems it is supported by Linux distributions too. The smbclient command can be used to access Windows shares easily. By using smbclient the remote Windows shares can be listed, uploaded, deleted, or navigated easily. The smbclient … Read more
CIFS is a network-based file-sharing protocol which is used to share file, folders, and data over the network. The Windows, Linux, MacOSX, and other operating systems support the CIFS which makes it very useful to share files and folders over different operating systems. Both the SMB and CIFS protocols are developed by Microsoft and they … Read more