ADVANCED NETWORKING USING NETWORK MANAGER




Comments

Post a Comment

Popular posts from this blog

Power Broker

Every server running in your IT environment needs an account, and every account requires privileges. Many organizations take inadequate steps in managing privileged accounts – leaving them vulnerable to attack and opening the door to potentially devastating data breaches. Today, most breaches start with people installing something they shouldn’t, connecting to somewhere they shouldn’t, or accessing data they shouldn’t. What does all of this have in common? Privilege misuse and abuse. When users need elevated privileges on a Unix or Linux server, security admins often turn to free tools like Super User Do, or Sudo (“soo-doo”). Sudo enables privileged access without exposing the root password. But it has flaws. Like limited granularity, lack of data integrity and no log security. Its policies typically need to be managed on each server, making it hard to lock down and prone to tampering. With this ad-hoc tool, it’s virtually impossible to maintain security and compliance
Read more

zabbix-introduction

Image
Zabbix is an enterprise-class open source distributed monitoring solution. Zabbix is software that monitors numerous parameters of a network and the health and integrity of servers. Zabbix uses a flexible notification mechanism that allows users to configure e-mail based alerts for virtually any event. This allows a fast reaction to server problems. Zabbix offers excellent reporting and data visualisation features based on the stored data. This makes Zabbix ideal for capacity planning. Zabbix supports both polling and trapping. All Zabbix reports and statistics, as well as configuration parameters, are accessed through a web-based frontend. A web-based frontend ensures that the status of your network and the health of your servers can be assessed from any location. Properly configured, Zabbix can play an important role in monitoring IT infrastructure. This is equally true for small organisations with a few servers and for large companies with a multitude of servers. Zabbix i
Read more

variables in shell scripting

variables in shell scripting: Shell variables are created once they are assigned a value. A variable can contain a number, a character or a string of characters. Variable name is case sensitive and can consist of a combination of letters and the underscore "_". Value assignment is done using the "=" sign. Note that no space permitted on either side of = sign when initializing variables. EX: PRICE_PER_APPLE = 5 MyFirstLetters = ABC greeting = 'Hello world!'   1. A backslash "\" is used to escape special character meaning   EX: PRICE_PER_APPLE = 5 echo "The price of an Apple today is: \ $HK $PRICE_PER_APPLE " o/p: The price of an Apple today is: $HK 5     2. Encapsulating the variable name with ${} is used to avoid ambiguity   EX: MyFirstLetters = ABC echo "The first 10 letters in the alphabet are: ${MyFirstLetters} DEFGHIJ" o/p: The first 10 letters in the alphabet are: ABCDEFGHIJ   3. Encap
Read more