Miscellaneous blogs
Linux Network Namespaces
An installation of Linux shares a single set of network interfaces and routing table entries. Network namespaces change the fundamental assumption that network interfaces and routing tables/entries are shared across the entire OS. With network namespaces, you can have different and separate instances of network interfaces and routing tables that operate independent of each other. The support for network namespaces varies between Linux distributions; Ubuntu supports them but Red Hat does not. This blog, authored by Scott Lowe, elaborates on how to set up a Linux namespace, named blue, configure the network interface veth1 in the blue namespace, and connect the blue namespace to the outside world via an openvswitch bridge.
Database Access and Manipulation
Structured Query Language is a nonprocedural language, used to define(create, alter, drop, grant), and manipulate (update, delete, joint) data and structures in the relational database. PL/SQL is a Procedural language supported by the Oracle Developer Suite. Comparatively, PL/SQL is more powerful, as it enables the execution of a series of commands to assign values to objects. The blogspot offers a brief summary of both.
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