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    ZenHub is Down Zenoss Problems

    by Mitch March 3, 2015, 13:27 0 Comments

    Last time i experienced problems with Zenoss. Zenoss suddenly stopped getting information from the clients, stopped graphing client data and i did not know what the reason was for this situation. I tried removing and readding the client but the job of adding a new client was even not processed. When i tried to re-model […]

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    Tagged with: centos6, centos7, debug, error, zenoss

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    Add Windows Client to Zenoss Monitoring

    by Mitch February 25, 2015, 15:00 0 Comments

    It just so happens, that sometimes you would like to add Windows client to Zenoss monitoring 🙂 . A person would think that this would be quite simple and similar to adding Linux client to Zenoss monitoring, but it is not. The SNMP Windows client Zenoss monitoring is very limited, in fact i could not […]

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    Tagged with: centos6, centos7, configure, zenoss

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    Add Linux Client to Zenoss Monitoring

    by Mitch February 16, 2015, 15:06 0 Comments

    I have been getting some questions and emails about problems with adding linux client to Zenoss monitoring as explained in my post on Install Zenoss Monitoring Server on CentOS 6. I decided to post the SNMP daemon configuration i use, to add linux client to Zenoss monitoring server and write in general how to get […]

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    Tagged with: centos6, centos7, configure, zenoss

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    Apache Server Status Module

    by Mitch December 3, 2014, 13:47 0 Comments

    The Apache Server Status module is an addition to Apache HTTP Server. It is a module that enables insights into the Apache HTTP Server performance and statistics. On CentOS Linux, Apache Status module is provided by the httpd RPM package, so if you are running Apache, this module is already installed and wait for it […]

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    Tagged with: apache, centos6, centos7, configure, install

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    Cron Daemon and Cron Jobs

    by Mitch November 26, 2014, 14:56 0 Comments

    Cron is a daemon on linux and unix based operating systems. Cron is a job scheduler which we can be used to configure jobs or run commands at a specific time in a day, month or year. Cron is quite configurable enabling us to run jobs and commands periodically, at fixed times or dates and also […]

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    Tagged with: centos6, centos7, configure, cronjob

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    PostgreSQL Create Database and Tablespace

    by Mitch November 21, 2014, 14:30 0 Comments

    This is the next post in a series of posts about PostgreSQL and is actually a continuation from post on “PostgreSQL Create User – Manage Users“. If you followed my post on “PostgreSQL Create User – Manage Users” then you successfully created your firstPostgreSQL users and also assigned them desired rights and privileges. The next step is to […]

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    Tagged with: centos6, centos7, configure, database, postgresql

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    PostgreSQL Create User – Manage Users

    by Mitch November 13, 2014, 14:32 2 Comments

    As promised in one of the previous posts on “Install PostgreSQL Database on CentOS 6” here is a post describing how to manage PostgreSQL users (PostgreSQL create user, delete user, …). By now you have probably successfully installed and started PostgreSQL server on your linux machine, but empty PostgreSQL server is not useful in any way. The next […]

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    Tagged with: centos6, centos7, configure, database, postgresql

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    SSH Tunnel – Port Forwarding With SSH

    by Mitch November 11, 2014, 15:15 1 Comment

    SSH has a huge number of features, SSH Tunnel being just one of them. SSH Tunnel is a secure connection between two machines and is often refered to as “SSH Tunneling” or also “Port Forwarding”. Using the “ssh” command we can bind a desired port on a local machine to a desired port on a remote […]

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    Tagged with: centos6, centos7, networking, security, ssh

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    Install and Configure Postfix with Dovecot on CentOS 6

    by Mitch October 29, 2014, 10:45 22 Comments

    Want to install and configure Postfix with Dovecot on CentOS 6? Or are you wondering whatPostfix orDovecot is? In case you are wondering (i hope not, since you stumbled on this page), Postfix is a mail server or a bit more fancy word for it – Mail Transfer Agent (MTA). Actually MTA tells you what this application does. It transfers the […]

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    Tagged with: centos6, configure, dovecot, email, install, postfix

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    Secure Your Linux Server With IPTables

    by Mitch October 8, 2014, 13:36 0 Comments

    If you have a Linux server out there somewhere in the internet, you probably want to secure it and reflect some of the most common attacks to your server. If you are just starting out with your first server you must know, your server will be attacked. There are automated bots and scripts that scan […]

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    Tagged with: centos6, configure, iptables, security

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    Configure IPTables on CentOS 6

    by Mitch September 15, 2014, 15:22 7 Comments

    IPTables is a service on linux systems, which allows a system administrator to configure rules and chains in tables provides by the Linux kernel firewall. IPTables is a Linux firewall service which enables you to accept, reject or drop (,…) packages based on the rules you applied. In this post we will learn how to cofigure iptables […]

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    Tagged with: centos6, configure, iptables, security

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    FSTAB: Mount Point With Space in Dir Name

    by Mitch September 10, 2014, 15:07 0 Comments

    Today i was re-organizing my desktop computer running Fedora 20. Actually i installed a new SSD drive in it and been throwing data around to organize/create new partitions and filesystems – just the way i like it! 🙂 Since i decided to put my VirtualBox machine files on a separated partition i ran into the […]

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    Tagged with: centos6, centos7, filesystem, fstab

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