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Install and configure rsyslog Centralized logging server in CentOS

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 Install and configure rsyslog Centralized logging server in CentOS 6.5 In this tutorial we will learn, how to install and configure rsyslog 7.6 version on RHEL 6.5/CentOS 6.5 .The scenario is, install and setup rsyslog Centralized Logging Server in RHEL/CentOS 6.5. All the logs from client servers will be sent to Centralized logging server i.e rsyslog server. Check Pre-installed rsyslog package Step 1: First of all check the rsyslog package is installed in your system.Generally by-default we get rsyslog version 5.x , after minimal installation of CentOS 6.x / RHEL 6.x We will install the latest rsyslog package. At the time of writing this post, rsyslog stable version 7.6 was available. You can find the latest package information from rsyslog official website Note: By default, RHEL 6.x and CentOS 6.x has rsyslog version 5.x. So here we will update the rsyslog with new version. You can get the rsyslog version information, by using below given two commands rpm -qa|grep rsy...
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Connecting to Your Linux Instance from Windows Using PuTTY

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1.     To generate an RSA key pair to work with version 2 of the protocol, type the following command at a shell prompt: 2.   ssh-keygen -t rsa [pravesh@localhost ~]$ ssh-keygen -t rsa Generating public/private rsa key pair. Enter file in which to save the key (/home/pravesh/.ssh/id_rsa): pravesh Enter passphrase (empty for no passphrase): Enter same passphrase again: Your identification has been saved in pravesh. Your public key has been saved in pravesh.pub. The key fingerprint is: ed:5e:fb:5d:87:a2:12:ac:5d:98:1c:59:df:e3:81:1a pravesh@localhost.localdomain The key's randomart image is: +--[ RSA 2048]----+ |                 | |          .      | |         o . o   | |        o.E o +  | | ...
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Could not join realm: Necessary packages are not installed: sssd-tools sssd libnss-sss libpam-sss adcli

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Couldn't join realm: Necessary packages are not installed: sssd-tools sssd libnss-sss libpam-sss adcli root@HPUX:~# realm join --user=domainuser@windows.local  windows.local -v  * Resolving: _ldap._tcp.windows.local  * Resolving: windows.local  * Performing LDAP DSE lookup on: 192.168.20.24  * Successfully discovered: windows.local Password for domainuser@windows.local:  * Unconditionally checking packages  * Resolving required packages  ! Necessary packages are not installed: sssd-tools sssd libnss-sss libpam-sss adcli realm: Couldn't join realm: Necessary packages are not installed: root@HPUX:~# apt-get install sssd-tools sssd libnss-sss libpam-sss adcli Reading package lists... Done Building dependency tree Reading state information... Done adcli is already the newest version (0.8.1-1). libnss-sss is already the newest version (1.13.4-1ubuntu1.7). libpam-sss is already the newest version (1.13.4-1ubuntu1.7). sssd is alread...
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