I/O multiplexing: select, poll and epoll in Linux
I/O multiplexing is doing I/O on multiple file descriptors. I/O multiplexing is explained with socket programming in C using poll and epoll.
Interprocess Communication using Unix Domain Sockets
Unix domain sockets provide a fast and simple mechanism for interprocess communication on a Unix-like host system using the socket interface.
Analyzing the NGINX web server log file
A Perl script for generating the report of the most frequent visitors to a website from the nginx log file is given.
Syslog
Syslog is a protocol for conveying event notification messages. Syslog concepts and calls for logging messages are explained.
D-Bus Tutorial
D-Bus is a mechanism for interprocess communication for Linux systems. D-Bus concepts along with example client-server programs are explained.
POSIX message queues in Linux
POSIX message queue calls for interprocess communication (IPC) between processes are explained with an example of server and client programs in C under Linux.
System V message queues in Linux
Message queues provide a mechanism for inter-process communication. System V message queues are explained with example client-server programs.
FIFOs in Linux
Any two processes can communicate using FIFOs in Linux. Interprocess communication using FIFOs is explained using a client-server example.
Using Git
Git is a popular, widely used, source code management system, originally developed by Linus Torvalds. Common Git commands are listed.
Getting WordPress to work with Varnish 4.0
With Varnish 4.0, VCL has changed. The changed VCL for dropping cookies for a WordPress based site using Varnish cache server is provided.