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Showing posts from January, 2013

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VIM editor commands and examples - Linux

on January 16, 2013

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Browsing linux filesystem

on January 09, 2013

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Basic linux commands

on January 09, 2013

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AWS Conference Day

Vishal Vyas: Linux, Cloud, DevOps
Ahmedabad-380008 www.vishalvyas.com
Contact:-+91 9978839723

Popular Posts

Setup password less SSH on linux

In this article i will explain you to how to connect remote server machine using password less login.
SSH client : 10.80.253.11
SSH remote Host : 10.80.253.12

Generate a pair key on ssh server :
$ ssh-keygen -t rsa
Generating public/private rsa key pair.
Enter file in which to save the key (/root/.ssh/id_rsa):
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in /root/.ssh/id_rsa.
Your public key has been saved in /root/.ssh/id_rsa.pub.
The key fingerprint is:
SHA256:1Je7TcRc58MxO5C6qBJ6qy44L+nxT8xHSXfBHUpNy48 root@slave1
The key's randomart image is:
+---[RSA 2048]----+
| .o++ooo|
| ...+B+o=|
| ....o+o+=.|
| ..o .o oo o|
| oS . oE.. |
| o.. . . + |
|.o .+... . . |
|=.o..o.. |
|.=+++oo |
+----[SHA256]-----+

Copy key to client machine :
$ssh-copy-id -i id_rsa.pub root@10.80.253.12

it will ask you the password.

Now you can login to client machine without password.
root@master:~# ssh 10.80…

Configure Zabbix Server and Agent

Zabbix is an open source software, where you can monitor your network and server infra. You can monitor your remote host with zabbix agent. In this article we will install and configure zabbix server and zabbix host on remote server and monitor it. We will use Ubuntu 16.04 for this project.

Install Apache, MysQl and PHP.
You will have to install LAMP in your Zabbix server. So first we will install Apache, Php and MysQl in zabbix server.

apt-get update apt-get install apache2 apt-get install mysql-server apt-get install php php-mbstring php-gd php-xml php-bcmath php-ldap php-mysql

After install php we will have to change and configure local timezon in php configuration file.
vim /etc/php/PHP_VERSION/apache2/php.ini
[Date] ; http://php.net/date.timezone date.timezone = 'Asia/Kolkata'

We will have to enable require APT repository to install Zabbix.
For Ubuntu 16.04 LTS:
wget http://repo.zabbix.com/zabbix/3.4/ubuntu/pool/main/z/zabbix-release/zabbix-release_3.4-1+xenial_all.deb
dpkg -i zabbix-re…

Install Apache Using Ansible Playbooks

Ansible is a automation tool which is widely used, you can install and install, configure and manage number of system and services remotely. you can install software and manage services and tasks without needing manually log in to each servers. you have to install ansible in one machine and use ssh to communicate host each other.

Ansible uses Playbooks which is written in YAML format. it's uses module base format. with playbook can run multiple tasks at time and provide more advance functionality, YAML file always start with "---" syntax.

In this article we will see how to install and configure apahce2 using ansible YAML script.

Master server : 10.80.253.11[Ansible server, ]
Slave 1 : 10.80.253.12[need to install apache2 in slave 1]
Slave 2 : 10.80.253.13[need to install apache2 in slave 2]

We need to configure slave server info in our ansible configuration file, click here to know how to add client machine to ansible.

Let's update our apache2.yml file a…

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