Everything is defined in: /usr/lib/systemd/system/ and in: Bootstrap of systemd at the boot timedocs.google.com

In the field of computer network administration, pcap (packet capture) consists of an application programming interface (API) for capturing network traffic. Unix-like systems implement pcap in the libpcap library; Windows uses a port of li…

Notice: This series is to expect to use kernel 3.10.0-229. 1. What Glance provides. It provides a catalog service for storing and querying virtual disk images. Glance also provides an end-to-end solution for cloud disk image management wit…

This was quite interesting to me. irb(main):001:0> me1 = "puts 'Life with Linux'"=> "Life with Linux" irb(main):002:0> puts me1puts 'Life with Linux'=> nil irb(main):003:0> eval me1Life with Linux=> nil irb(main):004:0> bytes_in_binary1 = …

Notice: This series is to expect to use kernel 3.10.0-229. 1. What Swift provides is A massively scalable and redundant object store conceptually similar to Amazon S3. S3: Simple Storage Service To provide this scalability and redundancy, …

Notice: Descriptions of LAYER in this document are based on the OSI model. Layer5 Three system calls: write sendto sendmsg end up in: __sock_sendmsg() which does: security_sock_sendmsg() to check prmissions, then forwards the message to th…

Notice: This series is to expect to use kernel 3.10.0-229. Keystone, what does it do , and how it works. 1. Introduction Keystone provides identity and access policy services for all components in the OpenStack family. It implements it's o…

Notice: This series is to expect to use kernel 3.10.0-229. These days, It's getting easier to build OpenStack infrastructure because so many contributors have been struggling with, working for OpenStack. In this series, I will write not on…